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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2006-12-25 08:05:48 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2006-12-25 08:05:48 +0000
commit13596cf723ef9a54194e762d9d2424b9df2d38a5 (patch)
treec7afe4fd997936fc5292f99ef66e64563fbaad93 /target/linux/atheros-2.6/patches
parent0aa989462424e5b67b0fd61f50c131f2e81be828 (diff)
Add support for Atheros SoC (used in Fonera, Meraki) - Merry Christmas, everybody :)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5898 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/atheros-2.6/patches')
-rw-r--r--target/linux/atheros-2.6/patches/100-board.patch1926
-rw-r--r--target/linux/atheros-2.6/patches/110-spiflash.patch750
-rw-r--r--target/linux/atheros-2.6/patches/120-enable_wireless_for_ahb.patch13
-rw-r--r--target/linux/atheros-2.6/patches/130-ar2313_ethernet.patch2072
-rw-r--r--target/linux/atheros-2.6/patches/140-redboot_partition_scan.patch24
5 files changed, 4785 insertions, 0 deletions
diff --git a/target/linux/atheros-2.6/patches/100-board.patch b/target/linux/atheros-2.6/patches/100-board.patch
new file mode 100644
index 000000000..040a28faf
--- /dev/null
+++ b/target/linux/atheros-2.6/patches/100-board.patch
@@ -0,0 +1,1926 @@
+diff -urN linux.old/arch/mips/ar531x/ar531x.h linux.dev/arch/mips/ar531x/ar531x.h
+--- linux.old/arch/mips/ar531x/ar531x.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/ar531x.h 2006-12-16 03:51:47.000000000 +0100
+@@ -0,0 +1,734 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++#ifndef AR531X_H
++#define AR531X_H 1
++
++/*
++ * Address map
++ */
++#define AR5315_SDRAM0 0x00000000 /* DRAM */
++#define AR5315_SPI_READ 0x08000000 /* SPI FLASH */
++#define AR5315_WLAN0 0xB0000000 /* Wireless MMR */
++#define AR5315_PCI 0xB0100000 /* PCI MMR */
++#define AR5315_SDRAMCTL 0xB0300000 /* SDRAM MMR */
++#define AR5315_LOCAL 0xB0400000 /* LOCAL BUS MMR */
++#define AR5315_ENET0 0xB0500000 /* ETHERNET MMR */
++#define AR5315_DSLBASE 0xB1000000 /* RESET CONTROL MMR */
++#define AR5315_UART0 0xB1100003 /* UART MMR */
++#define AR5315_SPI 0xB1300000 /* SPI FLASH MMR */
++#define AR5315_FLASHBT 0xBfc00000 /* ro boot alias to FLASH */
++#define AR5315_RAM1 0x40000000 /* ram alias */
++#define AR5315_PCIEXT 0x80000000 /* pci external */
++#define AR5315_RAM2 0xc0000000 /* ram alias */
++#define AR5315_RAM3 0xe0000000 /* ram alias */
++
++/*
++ * Reset Register
++ */
++#define AR5315_COLD_RESET (AR5315_DSLBASE + 0x0000)
++
++/* Cold Reset */
++#define RESET_COLD_AHB 0x00000001
++#define RESET_COLD_APB 0x00000002
++#define RESET_COLD_CPU 0x00000004
++#define RESET_COLD_CPUWARM 0x00000008
++#define RESET_SYSTEM (RESET_COLD_CPU | RESET_COLD_APB | RESET_COLD_AHB) /* full system */
++
++#define AR5317_RESET_SYSTEM 0x00000010
++
++/* Warm Reset */
++
++#define AR5315_RESET (AR5315_DSLBASE + 0x0004)
++
++#define RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
++#define RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BaseBand */
++#define RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
++#define RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
++#define RESET_MEMCTL 0x00000010 /* warm reset memory controller */
++#define RESET_LOCAL 0x00000020 /* warm reset local bus */
++#define RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
++#define RESET_SPI 0x00000080 /* warm reset SPI interface */
++#define RESET_UART0 0x00000100 /* warm reset UART0 */
++#define RESET_IR_RSVD 0x00000200 /* warm reset IR interface */
++#define RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
++#define RESET_ENET0 0x00000800 /* cold reset ENET0 mac */
++
++/*
++ * AHB master arbitration control
++ */
++#define AR5315_AHB_ARB_CTL (AR5315_DSLBASE + 0x0008)
++
++#define ARB_CPU 0x00000001 /* CPU, default */
++#define ARB_WLAN 0x00000002 /* WLAN */
++#define ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
++#define ARB_LOCAL 0x00000008 /* LOCAL */
++#define ARB_PCI 0x00000010 /* PCI */
++#define ARB_ETHERNET 0x00000020 /* Ethernet */
++#define ARB_RETRY 0x00000100 /* retry policy, debug only */
++
++/*
++ * Config Register
++ */
++#define AR5315_ENDIAN_CTL (AR5315_DSLBASE + 0x000c)
++
++#define CONFIG_AHB 0x00000001 /* EC - AHB bridge endianess */
++#define CONFIG_WLAN 0x00000002 /* WLAN byteswap */
++#define CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
++#define CONFIG_PCI 0x00000008 /* PCI byteswap */
++#define CONFIG_MEMCTL 0x00000010 /* Memory controller endianess */
++#define CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
++#define CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
++
++#define CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
++#define CONFIG_CPU 0x00000400 /* CPU big endian */
++#define CONFIG_PCIAHB 0x00000800
++#define CONFIG_PCIAHB_BRIDGE 0x00001000
++#define CONFIG_SPI 0x00008000 /* SPI byteswap */
++#define CONFIG_CPU_DRAM 0x00010000
++#define CONFIG_CPU_PCI 0x00020000
++#define CONFIG_CPU_MMR 0x00040000
++#define CONFIG_BIG 0x00000400
++
++
++/*
++ * NMI control
++ */
++#define AR5315_NMI_CTL (AR5315_DSLBASE + 0x0010)
++
++#define NMI_EN 1
++
++/*
++ * Revision Register - Initial value is 0x3010 (WMAC 3.0, AR531X 1.0).
++ */
++#define AR5315_SREV (AR5315_DSLBASE + 0x0014)
++
++#define REV_MAJ 0x00f0
++#define REV_MAJ_S 4
++#define REV_MIN 0x000f
++#define REV_MIN_S 0
++#define REV_CHIP (REV_MAJ|REV_MIN)
++
++/*
++ * Interface Enable
++ */
++#define AR5315_IF_CTL (AR5315_DSLBASE + 0x0018)
++
++#define IF_MASK 0x00000007
++#define IF_DISABLED 0
++#define IF_PCI 1
++#define IF_TS_LOCAL 2
++#define IF_ALL 3 /* only for emulation with separate pins */
++#define IF_LOCAL_HOST 0x00000008
++#define IF_PCI_HOST 0x00000010
++#define IF_PCI_INTR 0x00000020
++#define IF_PCI_CLK_MASK 0x00030000
++#define IF_PCI_CLK_INPUT 0
++#define IF_PCI_CLK_OUTPUT_LOW 1
++#define IF_PCI_CLK_OUTPUT_CLK 2
++#define IF_PCI_CLK_OUTPUT_HIGH 3
++#define IF_PCI_CLK_SHIFT 16
++
++
++/* Major revision numbers, bits 7..4 of Revision ID register */
++#define REV_MAJ_AR5311 0x01
++#define REV_MAJ_AR5312 0x04
++#define REV_MAJ_AR5315 0x0B
++
++/*
++ * APB Interrupt control
++ */
++
++#define AR5315_ISR (AR5315_DSLBASE + 0x0020)
++#define AR5315_IMR (AR5315_DSLBASE + 0x0024)
++#define AR5315_GISR (AR5315_DSLBASE + 0x0028)
++
++#define ISR_UART0 0x0001 /* high speed UART */
++#define ISR_I2C_RSVD 0x0002 /* I2C bus */
++#define ISR_SPI 0x0004 /* SPI bus */
++#define ISR_AHB 0x0008 /* AHB error */
++#define ISR_APB 0x0010 /* APB error */
++#define ISR_TIMER 0x0020 /* timer */
++#define ISR_GPIO 0x0040 /* GPIO */
++#define ISR_WD 0x0080 /* watchdog */
++#define ISR_IR_RSVD 0x0100 /* IR */
++
++#define IMR_UART0 ISR_UART0
++#define IMR_I2C_RSVD ISR_I2C_RSVD
++#define IMR_SPI ISR_SPI
++#define IMR_AHB ISR_AHB
++#define IMR_APB ISR_APB
++#define IMR_TIMER ISR_TIMER
++#define IMR_GPIO ISR_GPIO
++#define IMR_WD ISR_WD
++#define IMR_IR_RSVD ISR_IR_RSVD
++
++#define GISR_MISC 0x0001
++#define GISR_WLAN0 0x0002
++#define GISR_MPEGTS_RSVD 0x0004
++#define GISR_LOCALPCI 0x0008
++#define GISR_WMACPOLL 0x0010
++#define GISR_TIMER 0x0020
++#define GISR_ETHERNET 0x0040
++
++/*
++ * Interrupt routing from IO to the processor IP bits
++ * Define our inter mask and level
++ */
++#define AR5315_INTR_MISCIO SR_IBIT3
++#define AR5315_INTR_WLAN0 SR_IBIT4
++#define AR5315_INTR_ENET0 SR_IBIT5
++#define AR5315_INTR_LOCALPCI SR_IBIT6
++#define AR5315_INTR_WMACPOLL SR_IBIT7
++#define AR5315_INTR_COMPARE SR_IBIT8
++
++/*
++ * Timers
++ */
++#define AR5315_TIMER (AR5315_DSLBASE + 0x0030)
++#define AR5315_RELOAD (AR5315_DSLBASE + 0x0034)
++#define AR5315_WD (AR5315_DSLBASE + 0x0038)
++#define AR5315_WDC (AR5315_DSLBASE + 0x003c)
++
++#define WDC_RESET 0x00000002 /* reset on watchdog */
++#define WDC_NMI 0x00000001 /* NMI on watchdog */
++#define WDC_IGNORE_EXPIRATION 0x00000000
++
++/*
++ * Interface Debug
++ */
++#define AR531X_FLASHDBG (AR531X_RESETTMR + 0x0040)
++#define AR531X_MIIDBG (AR531X_RESETTMR + 0x0044)
++
++
++/*
++ * CPU Performance Counters
++ */
++#define AR5315_PERFCNT0 (AR5315_DSLBASE + 0x0048)
++#define AR5315_PERFCNT1 (AR5315_DSLBASE + 0x004c)
++
++#define PERF_DATAHIT 0x0001 /* Count Data Cache Hits */
++#define PERF_DATAMISS 0x0002 /* Count Data Cache Misses */
++#define PERF_INSTHIT 0x0004 /* Count Instruction Cache Hits */
++#define PERF_INSTMISS 0x0008 /* Count Instruction Cache Misses */
++#define PERF_ACTIVE 0x0010 /* Count Active Processor Cycles */
++#define PERF_WBHIT 0x0020 /* Count CPU Write Buffer Hits */
++#define PERF_WBMISS 0x0040 /* Count CPU Write Buffer Misses */
++
++#define PERF_EB_ARDY 0x0001 /* Count EB_ARdy signal */
++#define PERF_EB_AVALID 0x0002 /* Count EB_AValid signal */
++#define PERF_EB_WDRDY 0x0004 /* Count EB_WDRdy signal */
++#define PERF_EB_RDVAL 0x0008 /* Count EB_RdVal signal */
++#define PERF_VRADDR 0x0010 /* Count valid read address cycles */
++#define PERF_VWADDR 0x0020 /* Count valid write address cycles */
++#define PERF_VWDATA 0x0040 /* Count valid write data cycles */
++
++/*
++ * AHB Error Reporting.
++ */
++#define AR5315_AHB_ERR0 (AR5315_DSLBASE + 0x0050) /* error */
++#define AR5315_AHB_ERR1 (AR5315_DSLBASE + 0x0054) /* haddr */
++#define AR5315_AHB_ERR2 (AR5315_DSLBASE + 0x0058) /* hwdata */
++#define AR5315_AHB_ERR3 (AR5315_DSLBASE + 0x005c) /* hrdata */
++#define AR5315_AHB_ERR4 (AR5315_DSLBASE + 0x0060) /* status */
++
++#define AHB_ERROR_DET 1 /* AHB Error has been detected, */
++ /* write 1 to clear all bits in ERR0 */
++#define AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
++#define AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
++
++#define PROCERR_HMAST 0x0000000f
++#define PROCERR_HMAST_DFLT 0
++#define PROCERR_HMAST_WMAC 1
++#define PROCERR_HMAST_ENET 2
++#define PROCERR_HMAST_PCIENDPT 3
++#define PROCERR_HMAST_LOCAL 4
++#define PROCERR_HMAST_CPU 5
++#define PROCERR_HMAST_PCITGT 6
++
++#define PROCERR_HMAST_S 0
++#define PROCERR_HWRITE 0x00000010
++#define PROCERR_HSIZE 0x00000060
++#define PROCERR_HSIZE_S 5
++#define PROCERR_HTRANS 0x00000180
++#define PROCERR_HTRANS_S 7
++#define PROCERR_HBURST 0x00000e00
++#define PROCERR_HBURST_S 9
++
++
++
++/*
++ * Clock Control
++ */
++#define AR5315_PLLC_CTL (AR5315_DSLBASE + 0x0064)
++#define AR5315_PLLV_CTL (AR5315_DSLBASE + 0x0068)
++#define AR5315_CPUCLK (AR5315_DSLBASE + 0x006c)
++#define AR5315_AMBACLK (AR5315_DSLBASE + 0x0070)
++#define AR5315_SYNCCLK (AR5315_DSLBASE + 0x0074)
++#define AR5315_DSL_SLEEP_CTL (AR5315_DSLBASE + 0x0080)
++#define AR5315_DSL_SLEEP_DUR (AR5315_DSLBASE + 0x0084)
++
++/* PLLc Control fields */
++#define PLLC_REF_DIV_M 0x00000003
++#define PLLC_REF_DIV_S 0
++#define PLLC_FDBACK_DIV_M 0x0000007C
++#define PLLC_FDBACK_DIV_S 2
++#define PLLC_ADD_FDBACK_DIV_M 0x00000080
++#define PLLC_ADD_FDBACK_DIV_S 7
++#define PLLC_CLKC_DIV_M 0x0001c000
++#define PLLC_CLKC_DIV_S 14
++#define PLLC_CLKM_DIV_M 0x00700000
++#define PLLC_CLKM_DIV_S 20
++
++/* CPU CLK Control fields */
++#define CPUCLK_CLK_SEL_M 0x00000003
++#define CPUCLK_CLK_SEL_S 0
++#define CPUCLK_CLK_DIV_M 0x0000000c
++#define CPUCLK_CLK_DIV_S 2
++
++/* AMBA CLK Control fields */
++#define AMBACLK_CLK_SEL_M 0x00000003
++#define AMBACLK_CLK_SEL_S 0
++#define AMBACLK_CLK_DIV_M 0x0000000c
++#define AMBACLK_CLK_DIV_S 2
++
++#if defined(COBRA_EMUL)
++#define AR5315_AMBA_CLOCK_RATE 20000000
++#define AR5315_CPU_CLOCK_RATE 40000000
++#else
++#if defined(DEFAULT_PLL)
++#define AR5315_AMBA_CLOCK_RATE 40000000
++#define AR5315_CPU_CLOCK_RATE 40000000
++#else
++#define AR5315_AMBA_CLOCK_RATE 92000000
++#define AR5315_CPU_CLOCK_RATE 184000000
++#endif /* ! DEFAULT_PLL */
++#endif /* ! COBRA_EMUL */
++
++#define AR5315_UART_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
++#define AR5315_SDRAM_CLOCK_RATE AR5315_AMBA_CLOCK_RATE
++
++/*
++ * The UART computes baud rate as:
++ * baud = clock / (16 * divisor)
++ * where divisor is specified as a High Byte (DLM) and a Low Byte (DLL).
++ */
++#define DESIRED_BAUD_RATE 38400
++
++/*
++ * The WATCHDOG value is computed as
++ * 10 seconds * AR531X_WATCHDOG_CLOCK_RATE
++ */
++#define DESIRED_WATCHDOG_SECONDS 10
++#define AR531X_WATCHDOG_TIME \
++ (DESIRED_WATCHDOG_SECONDS * AR531X_WATCHDOG_CLOCK_RATE)
++
++
++#define CLOCKCTL_UART0 0x0010 /* enable UART0 external clock */
++
++
++ /*
++ * Applicable "PCICFG" bits for WLAN(s). Assoc status and LED mode.
++ */
++#define AR531X_PCICFG (AR531X_RESETTMR + 0x00b0)
++#define ASSOC_STATUS_M 0x00000003
++#define ASSOC_STATUS_NONE 0
++#define ASSOC_STATUS_PENDING 1
++#define ASSOC_STATUS_ASSOCIATED 2
++#define LED_MODE_M 0x0000001c
++#define LED_BLINK_THRESHOLD_M 0x000000e0
++#define LED_SLOW_BLINK_MODE 0x00000100
++
++/*
++ * GPIO
++ */
++
++#define AR5315_GPIO_DI (AR5315_DSLBASE + 0x0088)
++#define AR5315_GPIO_DO (AR5315_DSLBASE + 0x0090)
++#define AR5315_GPIO_CR (AR5315_DSLBASE + 0x0098)
++#define AR5315_GPIO_INT (AR5315_DSLBASE + 0x00a0)
++
++#define GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
++#define GPIO_CR_O(x) (1 << (x)) /* output */
++#define GPIO_CR_I(x) (0 << (x)) /* input */
++
++#define GPIO_INT(x,Y) ((x) << (8 * (Y))) /* interrupt enable */
++#define GPIO_INT_M(Y) ((0x3F) << (8 * (Y))) /* mask for int */
++#define GPIO_INT_LVL(x,Y) ((x) << (8 * (Y) + 6)) /* interrupt level */
++#define GPIO_INT_LVL_M(Y) ((0x3) << (8 * (Y) + 6)) /* mask for int level */
++
++#define AR5315_RESET_GPIO 5
++#define AR5315_NUM_GPIO 22
++
++
++/*
++ * PCI Clock Control
++ */
++
++#define AR5315_PCICLK (AR5315_DSLBASE + 0x00a4)
++
++#define PCICLK_INPUT_M 0x3
++#define PCICLK_INPUT_S 0
++
++#define PCICLK_PLLC_CLKM 0
++#define PCICLK_PLLC_CLKM1 1
++#define PCICLK_PLLC_CLKC 2
++#define PCICLK_REF_CLK 3
++
++#define PCICLK_DIV_M 0xc
++#define PCICLK_DIV_S 2
++
++#define PCICLK_IN_FREQ 0
++#define PCICLK_IN_FREQ_DIV_6 1
++#define PCICLK_IN_FREQ_DIV_8 2
++#define PCICLK_IN_FREQ_DIV_10 3
++
++/*
++ * Observation Control Register
++ */
++#define AR5315_OCR (AR5315_DSLBASE + 0x00b0)
++#define OCR_GPIO0_IRIN 0x0040
++#define OCR_GPIO1_IROUT 0x0080
++#define OCR_GPIO3_RXCLR 0x0200
++
++/*
++ * General Clock Control
++ */
++
++#define AR5315_MISCCLK (AR5315_DSLBASE + 0x00b4)
++#define MISCCLK_PLLBYPASS_EN 0x00000001
++#define MISCCLK_PROCREFCLK 0x00000002
++
++/*
++ * SDRAM Controller
++ * - No read or write buffers are included.
++ */
++#define AR5315_MEM_CFG (AR5315_SDRAMCTL + 0x00)
++#define AR5315_MEM_CTRL (AR5315_SDRAMCTL + 0x0c)
++#define AR5315_MEM_REF (AR5315_SDRAMCTL + 0x10)
++
++#define SDRAM_DATA_WIDTH_M 0x00006000
++#define SDRAM_DATA_WIDTH_S 13
++
++#define SDRAM_COL_WIDTH_M 0x00001E00
++#define SDRAM_COL_WIDTH_S 9
++
++#define SDRAM_ROW_WIDTH_M 0x000001E0
++#define SDRAM_ROW_WIDTH_S 5
++
++#define SDRAM_BANKADDR_BITS_M 0x00000018
++#define SDRAM_BANKADDR_BITS_S 3
++
++
++/*
++ * SDRAM Memory Refresh (MEM_REF) value is computed as:
++ * MEMCTL_SREFR = (Tr * hclk_freq) / R
++ * where Tr is max. time of refresh of any single row
++ * R is number of rows in the DRAM
++ * For most 133MHz SDRAM parts, Tr=64ms, R=4096 or 8192
++ */
++#if defined(COBRA_EMUL)
++#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x96
++#else
++#if defined(DEFAULT_PLL)
++#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x200
++#else
++#define AR5315_SDRAM_MEMORY_REFRESH_VALUE 0x61a
++#endif /* ! DEFAULT_PLL */
++#endif
++
++#define AR5315_SDRAM_DDR_SDRAM 0 /* Not DDR SDRAM */
++#define AR5315_SDRAM_DATA_WIDTH 16
++#define AR5315_SDRAM_COL_WIDTH 8
++#define AR5315_SDRAM_ROW_WIDTH 12
++
++/*
++ * SPI Flash Interface Registers
++ */
++
++#define AR5315_SPI_CTL (AR5315_SPI + 0x00)
++#define AR5315_SPI_OPCODE (AR5315_SPI + 0x04)
++#define AR5315_SPI_DATA (AR5315_SPI + 0x08)
++
++#define SPI_CTL_START 0x00000100
++#define SPI_CTL_BUSY 0x00010000
++#define SPI_CTL_TXCNT_MASK 0x0000000f
++#define SPI_CTL_RXCNT_MASK 0x000000f0
++#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
++#define SPI_CTL_SIZE_MASK 0x00060000
++
++#define SPI_CTL_CLK_SEL_MASK 0x03000000
++#define SPI_OPCODE_MASK 0x000000ff
++
++/*
++ * PCI-MAC Configuration registers
++ */
++#define PCI_MAC_RC (AR5315_PCI + 0x4000)
++#define PCI_MAC_SCR (AR5315_PCI + 0x4004)
++#define PCI_MAC_INTPEND (AR5315_PCI + 0x4008)
++#define PCI_MAC_SFR (AR5315_PCI + 0x400C)
++#define PCI_MAC_PCICFG (AR5315_PCI + 0x4010)
++#define PCI_MAC_SREV (AR5315_PCI + 0x4020)
++
++#define PCI_MAC_RC_MAC 0x00000001
++#define PCI_MAC_RC_BB 0x00000002
++
++#define PCI_MAC_SCR_SLMODE_M 0x00030000
++#define PCI_MAC_SCR_SLMODE_S 16
++#define PCI_MAC_SCR_SLM_FWAKE 0
++#define PCI_MAC_SCR_SLM_FSLEEP 1
++#define PCI_MAC_SCR_SLM_NORMAL 2
++
++#define PCI_MAC_SFR_SLEEP 0x00000001
++
++#define PCI_MAC_PCICFG_SPWR_DN 0x00010000
++
++
++
++
++/*
++ * PCI Bus Interface Registers
++ */
++#define AR5315_PCI_1MS_REG (AR5315_PCI + 0x0008)
++#define AR5315_PCI_1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
++
++#define AR5315_PCI_MISC_CONFIG (AR5315_PCI + 0x000c)
++#define AR5315_PCIMISC_TXD_EN 0x00000001 /* Enable TXD for fragments */
++#define AR5315_PCIMISC_CFG_SEL 0x00000002 /* mem or config cycles */
++#define AR5315_PCIMISC_GIG_MASK 0x0000000C /* bits 31-30 for pci req */
++#define AR5315_PCIMISC_RST_MODE 0x00000030
++#define AR5315_PCIRST_INPUT 0x00000000 /* 4:5=0 rst is input */
++#define AR5315_PCIRST_LOW 0x00000010 /* 4:5=1 rst to GND */
++#define AR5315_PCIRST_HIGH 0x00000020 /* 4:5=2 rst to VDD */
++#define AR5315_PCIGRANT_EN 0x00000000 /* 6:7=0 early grant en */
++#define AR5315_PCIGRANT_FRAME 0x00000040 /* 6:7=1 grant waits 4 frame */
++#define AR5315_PCIGRANT_IDLE 0x00000080 /* 6:7=2 grant waits 4 idle */
++#define AR5315_PCIGRANT_GAP 0x00000000 /* 6:7=2 grant waits 4 idle */
++#define AR5315_PCICACHE_DIS 0x00001000 /* PCI external access cache disable */
++
++#define AR5315_PCI_OUT_TSTAMP (AR5315_PCI + 0x0010)
++
++#define AR5315_PCI_UNCACHE_CFG (AR5315_PCI + 0x0014)
++
++#define AR5315_PCI_IN_EN (AR5315_PCI + 0x0100)
++#define AR5315_PCI_IN_EN0 0x01 /* Enable chain 0 */
++#define AR5315_PCI_IN_EN1 0x02 /* Enable chain 1 */
++#define AR5315_PCI_IN_EN2 0x04 /* Enable chain 2 */
++#define AR5315_PCI_IN_EN3 0x08 /* Enable chain 3 */
++
++#define AR5315_PCI_IN_DIS (AR5315_PCI + 0x0104)
++#define AR5315_PCI_IN_DIS0 0x01 /* Disable chain 0 */
++#define AR5315_PCI_IN_DIS1 0x02 /* Disable chain 1 */
++#define AR5315_PCI_IN_DIS2 0x04 /* Disable chain 2 */
++#define AR5315_PCI_IN_DIS3 0x08 /* Disable chain 3 */
++
++#define AR5315_PCI_IN_PTR (AR5315_PCI + 0x0200)
++
++#define AR5315_PCI_OUT_EN (AR5315_PCI + 0x0400)
++#define AR5315_PCI_OUT_EN0 0x01 /* Enable chain 0 */
++
++#define AR5315_PCI_OUT_DIS (AR5315_PCI + 0x0404)
++#define AR5315_PCI_OUT_DIS0 0x01 /* Disable chain 0 */
++
++#define AR5315_PCI_OUT_PTR (AR5315_PCI + 0x0408)
++
++#define AR5315_PCI_INT_STATUS (AR5315_PCI + 0x0500) /* write one to clr */
++#define AR5315_PCI_TXINT 0x00000001 /* Desc In Completed */
++#define AR5315_PCI_TXOK 0x00000002 /* Desc In OK */
++#define AR5315_PCI_TXERR 0x00000004 /* Desc In ERR */
++#define AR5315_PCI_TXEOL 0x00000008 /* Desc In End-of-List */
++#define AR5315_PCI_RXINT 0x00000010 /* Desc Out Completed */
++#define AR5315_PCI_RXOK 0x00000020 /* Desc Out OK */
++#define AR5315_PCI_RXERR 0x00000040 /* Desc Out ERR */
++#define AR5315_PCI_RXEOL 0x00000080 /* Desc Out EOL */
++#define AR5315_PCI_TXOOD 0x00000200 /* Desc In Out-of-Desc */
++#define AR5315_PCI_MASK 0x0000FFFF /* Desc Mask */
++#define AR5315_PCI_EXT_INT 0x02000000
++#define AR5315_PCI_ABORT_INT 0x04000000
++
++#define AR5315_PCI_INT_MASK (AR5315_PCI + 0x0504) /* same as INT_STATUS */
++
++#define AR5315_PCI_INTEN_REG (AR5315_PCI + 0x0508)
++#define AR5315_PCI_INT_DISABLE 0x00 /* disable pci interrupts */
++#define AR5315_PCI_INT_ENABLE 0x01 /* enable pci interrupts */
++
++#define AR5315_PCI_HOST_IN_EN (AR5315_PCI + 0x0800)
++#define AR5315_PCI_HOST_IN_DIS (AR5315_PCI + 0x0804)
++#define AR5315_PCI_HOST_IN_PTR (AR5315_PCI + 0x0810)
++#define AR5315_PCI_HOST_OUT_EN (AR5315_PCI + 0x0900)
++#define AR5315_PCI_HOST_OUT_DIS (AR5315_PCI + 0x0904)
++#define AR5315_PCI_HOST_OUT_PTR (AR5315_PCI + 0x0908)
++
++
++/*
++ * Local Bus Interface Registers
++ */
++#define AR5315_LB_CONFIG (AR5315_LOCAL + 0x0000)
++#define AR5315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
++#define AR5315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
++#define AR5315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
++#define AR5315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
++#define AR5315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
++#define AR5315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
++#define AR5315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
++#define AR5315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
++#define AR5315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
++#define AR5315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
++#define AR5315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
++#define AR5315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
++#define AR5315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
++#define AR5315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
++#define AR5315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
++#define AR5315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
++#define AR5315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
++#define AR5315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
++#define AR5315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
++#define AR5315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
++#define AR5315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
++#define AR5315_LBCONF_INT_CTR3 0x000C0000 /* GND drive, Vdd drive */
++#define AR5315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
++#define AR5315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
++#define AR5315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
++
++#define AR5315_LB_CLKSEL (AR5315_LOCAL + 0x0004)
++#define AR5315_LBCLK_EXT 0x0001 /* use external clk for lb */
++
++#define AR5315_LB_1MS (AR5315_LOCAL + 0x0008)
++#define AR5315_LB1MS_MASK 0x3FFFF /* # of AHB clk cycles in 1ms */
++
++#define AR5315_LB_MISCCFG (AR5315_LOCAL + 0x000C)
++#define AR5315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
++#define AR5315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
++#define AR5315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
++#define AR5315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
++#define AR5315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
++#define AR5315_LBM_TIMEOUT_MASK 0x00FFFF80
++#define AR5315_LBM_TIMEOUT_SHFT 7
++#define AR5315_LBM_PORTMUX 0x07000000
++
++
++#define AR5315_LB_RXTSOFF (AR5315_LOCAL + 0x0010)
++
++#define AR5315_LB_TX_CHAIN_EN (AR5315_LOCAL + 0x0100)
++#define AR5315_LB_TXEN_0 0x01
++#define AR5315_LB_TXEN_1 0x02
++#define AR5315_LB_TXEN_2 0x04
++#define AR5315_LB_TXEN_3 0x08
++
++#define AR5315_LB_TX_CHAIN_DIS (AR5315_LOCAL + 0x0104)
++#define AR5315_LB_TX_DESC_PTR (AR5315_LOCAL + 0x0200)
++
++#define AR5315_LB_RX_CHAIN_EN (AR5315_LOCAL + 0x0400)
++#define AR5315_LB_RXEN 0x01
++
++#define AR5315_LB_RX_CHAIN_DIS (AR5315_LOCAL + 0x0404)
++#define AR5315_LB_RX_DESC_PTR (AR5315_LOCAL + 0x0408)
++
++#define AR5315_LB_INT_STATUS (AR5315_LOCAL + 0x0500)
++#define AR5315_INT_TX_DESC 0x0001
++#define AR5315_INT_TX_OK 0x0002
++#define AR5315_INT_TX_ERR 0x0004
++#define AR5315_INT_TX_EOF 0x0008
++#define AR5315_INT_RX_DESC 0x0010
++#define AR5315_INT_RX_OK 0x0020
++#define AR5315_INT_RX_ERR 0x0040
++#define AR5315_INT_RX_EOF 0x0080
++#define AR5315_INT_TX_TRUNC 0x0100
++#define AR5315_INT_TX_STARVE 0x0200
++#define AR5315_INT_LB_TIMEOUT 0x0400
++#define AR5315_INT_LB_ERR 0x0800
++#define AR5315_INT_MBOX_WR 0x1000
++#define AR5315_INT_MBOX_RD 0x2000
++
++/* Bit definitions for INT MASK are the same as INT_STATUS */
++#define AR5315_LB_INT_MASK (AR5315_LOCAL + 0x0504)
++
++#define AR5315_LB_INT_EN (AR5315_LOCAL + 0x0508)
++#define AR5315_LB_MBOX (AR5315_LOCAL + 0x0600)
++
++
++
++/*
++ * IR Interface Registers
++ */
++#define AR5315_IR_PKTDATA (AR5315_IR + 0x0000)
++
++#define AR5315_IR_PKTLEN (AR5315_IR + 0x07fc) /* 0 - 63 */
++
++#define AR5315_IR_CONTROL (AR5315_IR + 0x0800)
++#define AR5315_IRCTL_TX 0x00000000 /* use as tranmitter */
++#define AR5315_IRCTL_RX 0x00000001 /* use as receiver */
++#define AR5315_IRCTL_SAMPLECLK_MASK 0x00003ffe /* Sample clk divisor mask */
++#define AR5315_IRCTL_SAMPLECLK_SHFT 1
++#define AR5315_IRCTL_OUTPUTCLK_MASK 0x03ffc000 /* Output clk divisor mask */
++#define AR5315_IRCTL_OUTPUTCLK_SHFT 14
++
++#define AR5315_IR_STATUS (AR5315_IR + 0x0804)
++#define AR5315_IRSTS_RX 0x00000001 /* receive in progress */
++#define AR5315_IRSTS_TX 0x00000002 /* transmit in progress */
++
++#define AR5315_IR_CONFIG (AR5315_IR + 0x0808)
++#define AR5315_IRCFG_INVIN 0x00000001 /* invert input polarity */
++#define AR5315_IRCFG_INVOUT 0x00000002 /* invert output polarity */
++#define AR5315_IRCFG_SEQ_START_WIN_SEL 0x00000004 /* 1 => 28, 0 => 7 */
++#define AR5315_IRCFG_SEQ_START_THRESH 0x000000f0 /* */
++#define AR5315_IRCFG_SEQ_END_UNIT_SEL 0x00000100 /* */
++#define AR5315_IRCFG_SEQ_END_UNIT_THRESH 0x00007e00 /* */
++#define AR5315_IRCFG_SEQ_END_WIN_SEL 0x00008000 /* */
++#define AR5315_IRCFG_SEQ_END_WIN_THRESH 0x001f0000 /* */
++#define AR5315_IRCFG_NUM_BACKOFF_WORDS 0x01e00000 /* */
++
++/*
++ * PCI memory constants: Memory area 1 and 2 are the same size -
++ * (twice the PCI_TLB_PAGE_SIZE). The definition of
++ * CPU_TO_PCI_MEM_SIZE is coupled with the TLB setup routine
++ * sysLib.c/sysTlbInit(), in that it assumes that 2 pages of size
++ * PCI_TLB_PAGE_SIZE are set up in the TLB for each PCI memory space.
++ */
++
++#define CPU_TO_PCI_MEM_BASE1 0xE0000000
++#define CPU_TO_PCI_MEM_SIZE1 (2*PCI_TLB_PAGE_SIZE)
++
++
++/* TLB attributes for PCI transactions */
++
++#define PCI_MMU_PAGEMASK 0x00003FFF
++#define MMU_PAGE_UNCACHED 0x00000010
++#define MMU_PAGE_DIRTY 0x00000004
++#define MMU_PAGE_VALID 0x00000002
++#define MMU_PAGE_GLOBAL 0x00000001
++#define PCI_MMU_PAGEATTRIB (MMU_PAGE_UNCACHED|MMU_PAGE_DIRTY|\
++ MMU_PAGE_VALID|MMU_PAGE_GLOBAL)
++#define PCI_MEMORY_SPACE1_VIRT 0xE0000000 /* Used for non-prefet mem */
++#define PCI_MEMORY_SPACE1_PHYS 0x80000000
++#define PCI_TLB_PAGE_SIZE 0x01000000
++#define TLB_HI_MASK 0xFFFFE000
++#define TLB_LO_MASK 0x3FFFFFFF
++#define PAGEMASK_SHIFT 11
++#define TLB_LO_SHIFT 6
++
++#define PCI_MAX_LATENCY 0xFFF /* Max PCI latency */
++
++#define HOST_PCI_DEV_ID 3
++#define HOST_PCI_MBAR0 0x10000000
++#define HOST_PCI_MBAR1 0x20000000
++#define HOST_PCI_MBAR2 0x30000000
++
++#define HOST_PCI_SDRAM_BASEADDR HOST_PCI_MBAR1
++#define PCI_DEVICE_MEM_SPACE 0x800000
++
++#define sysRegRead(phys) \
++ (*(volatile u32 *)KSEG1ADDR(phys))
++
++#define sysRegWrite(phys, val) \
++ ((*(volatile u32 *)KSEG1ADDR(phys)) = (val))
++
++#endif
+diff -urN linux.old/arch/mips/ar531x/ar531xlnx.h linux.dev/arch/mips/ar531x/ar531xlnx.h
+--- linux.old/arch/mips/ar531x/ar531xlnx.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/ar531xlnx.h 2006-12-16 04:49:36.000000000 +0100
+@@ -0,0 +1,74 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * This file contains definitions needed in order to compile
++ * AR531X products for linux. Definitions that are largely
++ * AR531X-specific and independent of operating system belong
++ * in ar531x.h rather than this file.
++ */
++#ifndef _AR531XLNX_H
++#define _AR531XLNX_H
++
++#include "ar531x.h"
++
++/*
++ * Board support data. The driver is required to locate
++ * and fill-in this information before passing a reference to
++ * this structure as the HAL_BUS_TAG parameter supplied to
++ * ath_hal_attach.
++ */
++struct ar531x_config {
++ const char *board; /* board config data */
++ const char *radio; /* radio config data */
++ int unit; /* unit number [0, 1] */
++ u32 tag; /* used as devid for now */
++};
++
++#define MIPS_CPU_IRQ_BASE 0x00
++#define AR531X_HIGH_PRIO 0x10
++#define AR531X_MISC_IRQ_BASE 0x20
++#define AR531X_GPIO_IRQ_BASE 0x30
++
++/* Software's idea of interrupts handled by "CPU Interrupt Controller" */
++#define AR531X_IRQ_NONE MIPS_CPU_IRQ_BASE+0
++#define AR531X_IRQ_MISC_INTRS MIPS_CPU_IRQ_BASE+2 /* C0_CAUSE: 0x0400 */
++#define AR531X_IRQ_WLAN0_INTRS MIPS_CPU_IRQ_BASE+3 /* C0_CAUSE: 0x0800 */
++#define AR531X_IRQ_ENET0_INTRS MIPS_CPU_IRQ_BASE+4 /* C0_CAUSE: 0x1000 */
++#define AR531X_IRQ_LCBUS_PCI MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
++#define AR531X_IRQ_WLAN0_POLL MIPS_CPU_IRQ_BASE+6 /* C0_CAUSE: 0x4000 */
++#define AR531X_IRQ_CPU_CLOCK MIPS_CPU_IRQ_BASE+7 /* C0_CAUSE: 0x8000 */
++
++/* Miscellaneous interrupts, which share IP6 */
++#define AR531X_MISC_IRQ_NONE AR531X_MISC_IRQ_BASE+0
++#define AR531X_MISC_IRQ_TIMER AR531X_MISC_IRQ_BASE+1
++#define AR531X_MISC_IRQ_AHB_PROC AR531X_MISC_IRQ_BASE+2
++#define AR531X_MISC_IRQ_AHB_DMA AR531X_MISC_IRQ_BASE+3
++#define AR531X_MISC_IRQ_GPIO AR531X_MISC_IRQ_BASE+4
++#define AR531X_MISC_IRQ_UART0 AR531X_MISC_IRQ_BASE+5
++#define AR531X_MISC_IRQ_UART0_DMA AR531X_MISC_IRQ_BASE+6
++#define AR531X_MISC_IRQ_WATCHDOG AR531X_MISC_IRQ_BASE+7
++#define AR531X_MISC_IRQ_LOCAL AR531X_MISC_IRQ_BASE+8
++#define AR531X_MISC_IRQ_COUNT 9
++
++/* GPIO Interrupts [0..7], share AR531X_MISC_IRQ_GPIO */
++#define AR531X_GPIO_IRQ_NONE AR531X_MISC_IRQ_BASE+0
++#define AR531X_GPIO_IRQ(n) AR531X_MISC_IRQ_BASE+(n)+1
++#define AR531X_GPIO_IRQ_COUNT 22
++
++extern struct ar531x_boarddata *ar531x_board_configuration;
++extern char *ar531x_radio_configuration;
++extern char *enet_mac_address_get(int MACUnit);
++
++#define A_DATA_CACHE_INVAL(start, length) \
++ dma_cache_inv((UINT32)(start),(length))
++
++#endif /* _AR531XLNX_H */
+diff -urN linux.old/arch/mips/ar531x/devices.c linux.dev/arch/mips/ar531x/devices.c
+--- linux.old/arch/mips/ar531x/devices.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/devices.c 2006-12-16 04:46:43.000000000 +0100
+@@ -0,0 +1,281 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Platform devices for AR531x SoC.
++ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <asm/io.h>
++#include <ar531x_platform.h>
++
++#include "ar531xlnx.h"
++
++static struct resource ar531x_eth_res[] = {
++ {
++ .name = "eth_membase",
++ .flags = IORESOURCE_MEM,
++ .start = 0xb0500000,
++ .end = 0xb0502000,
++ },
++ {
++ .name = "eth_irq",
++ .flags = IORESOURCE_IRQ,
++ .start = 4,
++ .end = 4,
++ },
++};
++
++static struct ar531x_eth ar531x_eth_data = {
++ .phy = 1,
++ .mac = 0,
++ .reset_base = 0x11000004,
++ .reset_mac = 0x800,
++ .reset_phy = 0x400,
++};
++
++static struct platform_device ar531x_eth = {
++ .id = 0,
++ .name = "ar531x-eth",
++ .dev.platform_data = &ar531x_eth_data,
++ .resource = ar531x_eth_res,
++ .num_resources = ARRAY_SIZE(ar531x_eth_res)
++};
++
++static struct platform_device ar531x_wmac = {
++ .id = 0,
++ .name = "ar531x-wmac",
++ /* FIXME: add resources */
++};
++
++static struct resource ar531x_spiflash_res[] = {
++ {
++ .name = "flash_base",
++ .flags = IORESOURCE_MEM,
++ .start = 0xa8000000,
++ .end = 0xa8400000,
++ },
++ {
++ .name = "flash_regs",
++ .flags = IORESOURCE_MEM,
++ .start = 0x11300000,
++ .end = 0x11300012,
++ },
++};
++
++static struct platform_device ar531x_spiflash = {
++ .id = 0,
++ .name = "spiflash",
++ .resource = ar531x_spiflash_res,
++ .num_resources = ARRAY_SIZE(ar531x_spiflash_res)
++};
++
++static __initdata struct platform_device *ar531x_devs[] = {
++ &ar531x_eth,
++ &ar531x_wmac,
++ &ar531x_spiflash
++};
++
++
++
++static void *flash_regs;
++
++static inline __u32 spiflash_regread32(int reg)
++{
++ volatile __u32 *data = (__u32 *)(flash_regs + reg);
++
++ return (*data);
++}
++
++static inline void spiflash_regwrite32(int reg, __u32 data)
++{
++ volatile __u32 *addr = (__u32 *)(flash_regs + reg);
++
++ *addr = data;
++}
++
++#define SPI_FLASH_CTL 0x00
++#define SPI_FLASH_OPCODE 0x04
++#define SPI_FLASH_DATA 0x08
++
++static __u8 spiflash_probe(void)
++{
++ __u32 reg;
++
++ do {
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ spiflash_regwrite32(SPI_FLASH_OPCODE, 0xab);
++
++ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | 4 |
++ (1 << 4) | SPI_CTL_START;
++
++ spiflash_regwrite32(SPI_FLASH_CTL, reg);
++
++ do {
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
++ reg &= 0xff;
++
++ return (u8) reg;
++}
++
++static u8 *find_board_config(void)
++{
++ char *addr;
++ int found = 0;
++
++ for (addr = (char *) (ar531x_spiflash_res[0].end - 0x1000);
++ addr >= (char *) (ar531x_spiflash_res[0].end - 0x30000);
++ addr -= 0x1000) {
++
++ if ( *(int *)addr == 0x35333131) {
++ /* config magic found */
++ found = 1;
++ break;
++ }
++ }
++
++ if (!found) {
++ printk("WARNING: No board configuration data found!\n");
++ addr = NULL;
++ }
++
++ return addr;
++}
++
++static void *find_radio_config(char *board_config)
++{
++ int dataFound;
++ u32 radio_config;
++
++ /*
++ * Now find the start of Radio Configuration data, using heuristics:
++ * Search forward from Board Configuration data by 0x1000 bytes
++ * at a time until we find non-0xffffffff.
++ */
++ dataFound = 0;
++ for (radio_config = (u32) board_config + 0x1000;
++ (radio_config < (u32) ar531x_spiflash_res[0].end);
++ radio_config += 0x1000) {
++ if (*(int *)radio_config != 0xffffffff) {
++ dataFound = 1;
++ break;
++ }
++ }
++
++ if (!dataFound) { /* AR2316 relocates radio config to new location */
++ for (radio_config = (u32) board_config + 0xf8;
++ (radio_config < (u32) ar531x_spiflash_res[0].end - 0x1000 + 0xf8);
++ radio_config += 0x1000) {
++ if (*(int *)radio_config != 0xffffffff) {
++ dataFound = 1;
++ break;
++ }
++ }
++ }
++
++ if (!dataFound) {
++ printk("Could not find Radio Configuration data\n");
++ radio_config = 0;
++ }
++
++ return (u8 *) radio_config;
++}
++
++
++#define STM_8MBIT_SIGNATURE 0x13
++#define STM_16MBIT_SIGNATURE 0x14
++#define STM_32MBIT_SIGNATURE 0x15
++#define STM_64MBIT_SIGNATURE 0x16
++
++
++static void __init ar531x_init_flash(void)
++{
++ u8 sig;
++ u32 flash_size = 0;
++ unsigned int rcfg_size;
++ char *bcfg, *rcfg, *board_config, *radio_config;
++ struct ar531x_config *config;
++
++ /* probe the flash chip size */
++ flash_regs = ioremap_nocache(ar531x_spiflash_res[1].start, ar531x_spiflash_res[1].end - ar531x_spiflash_res[1].start);
++ sig = spiflash_probe();
++ iounmap(flash_regs);
++
++ switch(sig) {
++ case STM_8MBIT_SIGNATURE:
++ flash_size = 0x00100000;
++ break;
++ case STM_16MBIT_SIGNATURE:
++ flash_size = 0x00200000;
++ break;
++ case STM_32MBIT_SIGNATURE:
++ flash_size = 0x00400000;
++ break;
++ case STM_64MBIT_SIGNATURE:
++ flash_size = 0x00800000;
++ break;
++ }
++
++ if (!flash_size)
++ return;
++
++ ar531x_spiflash_res[0].end = ar531x_spiflash_res[0].start + flash_size;
++
++ /* Copy the board and radio data to RAM, because with the new
++ * spiflash driver, accessing the mapped memory directly is no
++ * longer safe */
++
++ bcfg = find_board_config();
++ if (!bcfg)
++ return;
++
++ board_config = kmalloc(0x1000, GFP_KERNEL);
++ memcpy(board_config, bcfg, 0x100);
++ ar531x_eth_data.board_config = board_config;
++
++ /* Radio config starts 0x100 bytes after board config, regardless
++ * of what the physical layout on the flash chip looks like */
++
++ rcfg = find_radio_config(bcfg);
++ if (!rcfg)
++ return;
++ printk("Radio config found at offset 0x%x\n", rcfg - bcfg);
++ radio_config = board_config + 0x100 + ((rcfg - bcfg) & 0xfff);
++ rcfg_size = 0x1000 - ((rcfg - bcfg) & 0xfff);
++ memcpy(radio_config, rcfg, rcfg_size);
++
++ config = (struct ar531x_config *) kzalloc(sizeof(struct ar531x_config), GFP_KERNEL);
++ config->board = board_config;
++ config->radio = radio_config;
++ config->unit = 0;
++ config->tag = (u_int16_t) (sysRegRead(AR5315_SREV) & REV_CHIP);
++ ar531x_wmac.dev.platform_data = config;
++}
++
++static int __init ar531x_register_devices(void)
++{
++ ar531x_init_flash();
++ return platform_add_devices(ar531x_devs, ARRAY_SIZE(ar531x_devs));
++}
++
++
++arch_initcall(ar531x_register_devices);
+diff -urN linux.old/arch/mips/ar531x/gpio.c linux.dev/arch/mips/ar531x/gpio.c
+--- linux.old/arch/mips/ar531x/gpio.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/gpio.c 2006-12-16 04:49:20.000000000 +0100
+@@ -0,0 +1,127 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Support for GPIO -- General Purpose Input/Output Pins
++ * XXX: should be rewritten
++ */
++
++#include <linux/autoconf.h>
++#include <linux/kernel.h>
++#include <linux/signal.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++
++#include "ar531xlnx.h"
++
++/* GPIO Interrupt Support */
++
++/* Turn on the specified AR531X_GPIO_IRQ interrupt */
++static unsigned int
++ar531x_gpio_intr_startup(unsigned int irq)
++{
++ ar531x_gpio_intr_enable(irq);
++
++ return 0;
++}
++
++/* Turn off the specified AR531X_GPIO_IRQ interrupt */
++static void
++ar531x_gpio_intr_shutdown(unsigned int irq)
++{
++ ar531x_gpio_intr_disable(irq);
++}
++
++u32 gpioIntMask = 0;
++
++static void ar531x_gpio_intr_set_enabled(unsigned int gpio, int enabled)
++{
++ u32 reg;
++ int intnum = 0;
++ int intlevel = 2;
++
++ reg = sysRegRead(AR5315_GPIO_CR);
++ reg &= ~(GPIO_CR_M(gpio));
++ reg |= GPIO_CR_I(gpio);
++ sysRegWrite(AR5315_GPIO_CR, reg);
++ (void)sysRegRead(AR5315_GPIO_CR); /* flush write to hardware */
++
++ reg = sysRegRead(AR5315_GPIO_INT);
++
++ reg &= ~(GPIO_INT_M(intnum));
++ reg &= ~(GPIO_INT_LVL_M(intnum));
++
++ if (enabled) {
++ reg |= GPIO_INT_LVL(intlevel, intnum);
++ reg |= GPIO_INT(gpio, intnum);
++ }
++
++ sysRegWrite(AR5315_GPIO_INT, reg);
++ (void)sysRegRead(AR5315_GPIO_INT); /* flush write to hardware */
++}
++
++
++/* Enable the specified AR531X_GPIO_IRQ interrupt */
++static void
++ar531x_gpio_intr_enable(unsigned int irq)
++{
++ int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++ gpioIntMask |= (1<<gpio);
++ ar531x_gpio_intr_set_enabled(irq, 1);
++}
++
++/* Disable the specified AR531X_GPIO_IRQ interrupt */
++static void
++ar531x_gpio_intr_disable(unsigned int irq)
++{
++ int gpio = irq - AR531X_GPIO_IRQ_BASE;
++
++ gpioIntMask &= (1<<gpio);
++ ar531x_gpio_intr_set_enabled(irq, 0);
++}
++
++
++static void
++ar531x_gpio_intr_end(unsigned int irq)
++{
++ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++ ar531x_gpio_intr_enable(irq);
++}
++
++int ar531x_gpio_irq_base;
++
++struct hw_interrupt_type ar531x_gpio_intr_controller = {
++ .typename = "AR531X GPIO",
++ .startup = ar531x_gpio_intr_startup,
++ .shutdown = ar531x_gpio_intr_shutdown,
++ .enable = ar531x_gpio_intr_enable,
++ .disable = ar531x_gpio_intr_disable,
++ .ack = ar531x_gpio_intr_disable,
++ .end = ar531x_gpio_intr_end,
++};
++
++void
++ar531x_gpio_intr_init(int irq_base)
++{
++ int i;
++
++ for (i = irq_base; i < irq_base + AR531X_GPIO_IRQ_COUNT; i++) {
++ irq_desc[i].status = IRQ_DISABLED;
++ irq_desc[i].action = NULL;
++ irq_desc[i].depth = 1;
++ irq_desc[i].chip = &ar531x_gpio_intr_controller;
++ }
++
++ ar531x_gpio_irq_base = irq_base;
++}
++
++
+diff -urN linux.old/arch/mips/ar531x/irq.c linux.dev/arch/mips/ar531x/irq.c
+--- linux.old/arch/mips/ar531x/irq.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/irq.c 2006-12-17 15:09:04.000000000 +0100
+@@ -0,0 +1,312 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Interrupt support for AR531X WiSOC.
++ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/kernel_stat.h>
++#include <linux/signal.h>
++#include <linux/sched.h>
++#include <linux/interrupt.h>
++#include <linux/slab.h>
++#include <linux/random.h>
++#include <linux/pm.h>
++#include <linux/delay.h>
++#include <linux/reboot.h>
++
++#include <asm/irq.h>
++#include <asm/mipsregs.h>
++#include <asm/gdb-stub.h>
++
++#include "ar531xlnx.h"
++#include <asm/irq_cpu.h>
++
++extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
++
++static void ar531x_misc_intr_enable(unsigned int irq);
++static void ar531x_misc_intr_disable(unsigned int irq);
++
++
++/* Turn on the specified AR531X_MISC_IRQ interrupt */
++static unsigned int
++ar531x_misc_intr_startup(unsigned int irq)
++{
++ ar531x_misc_intr_enable(irq);
++ return 0;
++}
++
++/* Turn off the specified AR531X_MISC_IRQ interrupt */
++static void
++ar531x_misc_intr_shutdown(unsigned int irq)
++{
++ ar531x_misc_intr_disable(irq);
++}
++
++/* Enable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar531x_misc_intr_enable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = sysRegRead(AR5315_IMR);
++ switch(irq)
++ {
++ case AR531X_MISC_IRQ_TIMER:
++ imr |= IMR_TIMER;
++ break;
++
++ case AR531X_MISC_IRQ_AHB_PROC:
++ imr |= IMR_AHB;
++ break;
++
++ case AR531X_MISC_IRQ_AHB_DMA:
++ imr |= 0/* ?? */;
++ break;
++
++ case AR531X_MISC_IRQ_GPIO:
++ imr |= IMR_GPIO;
++ break;
++
++ case AR531X_MISC_IRQ_UART0:
++ imr |= IMR_UART0;
++ break;
++
++
++ case AR531X_MISC_IRQ_WATCHDOG:
++ imr |= IMR_WD;
++ break;
++
++ case AR531X_MISC_IRQ_LOCAL:
++ imr |= 0/* ?? */;
++ break;
++
++ }
++ sysRegWrite(AR5315_IMR, imr);
++ imr=sysRegRead(AR5315_IMR); /* flush write buffer */
++ //printk("enable Interrupt irq 0x%x imr 0x%x \n",irq,imr);
++
++}
++
++/* Disable the specified AR531X_MISC_IRQ interrupt */
++static void
++ar531x_misc_intr_disable(unsigned int irq)
++{
++ unsigned int imr;
++
++ imr = sysRegRead(AR5315_IMR);
++ switch(irq)
++ {
++ case AR531X_MISC_IRQ_TIMER:
++ imr &= (~IMR_TIMER);
++ break;
++
++ case AR531X_MISC_IRQ_AHB_PROC:
++ imr &= (~IMR_AHB);
++ break;
++
++ case AR531X_MISC_IRQ_AHB_DMA:
++ imr &= 0/* ?? */;
++ break;
++
++ case AR531X_MISC_IRQ_GPIO:
++ imr &= ~IMR_GPIO;
++ break;
++
++ case AR531X_MISC_IRQ_UART0:
++ imr &= (~IMR_UART0);
++ break;
++
++ case AR531X_MISC_IRQ_WATCHDOG:
++ imr &= (~IMR_WD);
++ break;
++
++ case AR531X_MISC_IRQ_LOCAL:
++ imr &= ~0/* ?? */;
++ break;
++
++ }
++ sysRegWrite(AR5315_IMR, imr);
++ sysRegRead(AR5315_IMR); /* flush write buffer */
++}
++
++static void
++ar531x_misc_intr_ack(unsigned int irq)
++{
++ ar531x_misc_intr_disable(irq);
++}
++
++static void
++ar531x_misc_intr_end(unsigned int irq)
++{
++ if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
++ ar531x_misc_intr_enable(irq);
++}
++
++struct irq_chip ar531x_misc_intr_controller = {
++ .typename = "AR531X MISC",
++ .startup = ar531x_misc_intr_startup,
++ .shutdown = ar531x_misc_intr_shutdown,
++ .enable = ar531x_misc_intr_enable,
++ .disable = ar531x_misc_intr_disable,
++ .ack = ar531x_misc_intr_ack,
++ .end = ar531x_misc_intr_end,
++};
++
++/*
++ * Determine interrupt source among interrupts that use IP6
++ */
++void
++ar531x_misc_intr_init(int irq_base)
++{
++ int i;
++
++ for (i = irq_base; i < irq_base + AR531X_MISC_IRQ_COUNT; i++) {
++ irq_desc[i].status = IRQ_DISABLED;
++ irq_desc[i].action = NULL;
++ irq_desc[i].depth = 1;
++ irq_desc[i].chip = &ar531x_misc_intr_controller;
++ }
++}
++
++/* ARGSUSED */
++irqreturn_t
++spurious_irq_handler(int cpl, void *dev_id)
++{
++ /*
++ printk("spurious_irq_handler: %d cause=0x%8.8x status=0x%8.8x\n",
++ cpl, cause_intrs, status_intrs);
++ */
++ return IRQ_NONE;
++}
++
++/* ARGSUSED */
++irqreturn_t
++spurious_misc_handler(int cpl, void *dev_id)
++{
++ /*
++ printk("spurious_misc_handler: 0x%x isr=0x%8.8x imr=0x%8.8x\n",
++ cpl, ar531x_isr, ar531x_imr);
++ */
++ return IRQ_NONE;
++}
++
++irqreturn_t
++ar531x_ahb_proc_handler(int cpl, void *dev_id)
++{
++ u32 procAddr = -1;
++ u32 proc1 = -1;
++ u32 dmaAddr = -1;
++ u32 dma1 = -1;
++ sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
++ sysRegRead(AR5315_AHB_ERR1);
++
++ printk("AHB interrupt: PROCADDR=0x%8.8x PROC1=0x%8.8x DMAADDR=0x%8.8x DMA1=0x%8.8x\n",
++ procAddr, proc1, dmaAddr, dma1);
++
++ machine_restart("AHB error"); /* Catastrophic failure */
++ return IRQ_HANDLED;
++}
++
++static struct irqaction cascade = {
++ .handler = no_action,
++ .flags = SA_INTERRUPT,
++ .name = "cascade",
++};
++
++static struct irqaction spurious_irq = {
++ .handler = spurious_irq_handler,
++ .flags = SA_INTERRUPT,
++ .name = "spurious_irq",
++};
++
++static struct irqaction spurious_misc = {
++ .handler = spurious_misc_handler,
++ .flags = SA_INTERRUPT,
++ .name = "spurious_misc",
++};
++
++static struct irqaction ar531x_ahb_proc_interrupt = {
++ .handler = ar531x_ahb_proc_handler,
++ .flags = SA_INTERRUPT,
++ .name = "ar531x_ahb_proc_interrupt",
++};
++
++/*
++ * Called when an interrupt is received, this function
++ * determines exactly which interrupt it was, and it
++ * invokes the appropriate handler.
++ *
++ * Implicitly, we also define interrupt priority by
++ * choosing which to dispatch first.
++ */
++asmlinkage void plat_irq_dispatch(void)
++{
++ int pending = read_c0_status() & read_c0_cause();
++
++ if (pending & CAUSEF_IP3)
++ do_IRQ(AR531X_IRQ_WLAN0_INTRS);
++ else if (pending & CAUSEF_IP4)
++ do_IRQ(AR531X_IRQ_ENET0_INTRS);
++ else if (pending & CAUSEF_IP2) {
++ unsigned int ar531x_misc_intrs = sysRegRead(AR5315_ISR) & sysRegRead(AR5315_IMR);
++
++ if (ar531x_misc_intrs & ISR_TIMER)
++ do_IRQ(AR531X_MISC_IRQ_TIMER);
++ else if (ar531x_misc_intrs & ISR_AHB)
++ do_IRQ(AR531X_MISC_IRQ_AHB_PROC);
++ else if (ar531x_misc_intrs & ISR_GPIO) {
++#if 0
++ int i;
++ u32 gpioIntPending;
++
++ gpioIntPending = sysRegRead(AR5315_GPIO_DI) & gpioIntMask;
++ for (i=0; i<AR531X_GPIO_IRQ_COUNT; i++) {
++ if (gpioIntPending & (1 << i))
++ do_IRQ(AR531X_GPIO_IRQ_BASE+i);
++ }
++#endif
++ sysRegWrite(AR5315_ISR, sysRegRead(AR5315_IMR) | ~ISR_GPIO);
++ } else if (ar531x_misc_intrs & ISR_UART0)
++ do_IRQ(AR531X_MISC_IRQ_UART0);
++ else if (ar531x_misc_intrs & ISR_WD)
++ do_IRQ(AR531X_MISC_IRQ_WATCHDOG);
++ else
++ do_IRQ(AR531X_MISC_IRQ_NONE);
++ } else if (pending & CAUSEF_IP7)
++ do_IRQ(AR531X_IRQ_CPU_CLOCK);
++ else
++ do_IRQ(AR531X_IRQ_NONE);
++}
++
++void __init arch_init_irq(void)
++{
++ clear_c0_status(ST0_IM);
++ mips_cpu_irq_init(0);
++
++ /* Initialize interrupt controllers */
++ ar531x_misc_intr_init(AR531X_MISC_IRQ_BASE);
++#if 0
++ ar531x_gpio_intr_init(AR531X_GPIO_IRQ_BASE);
++#endif
++ setup_irq(AR531X_IRQ_MISC_INTRS, &cascade);
++ /*
++ * AR531X_IRQ_CPU_CLOCK is setup by ar531x_timer_setup.
++ */
++
++ /* Default "spurious interrupt" handlers */
++ setup_irq(AR531X_IRQ_NONE, &spurious_irq);
++ setup_irq(AR531X_MISC_IRQ_NONE, &spurious_misc);
++ setup_irq(AR531X_MISC_IRQ_AHB_PROC, &ar531x_ahb_proc_interrupt);
++ setup_irq(AR531X_MISC_IRQ_GPIO, &cascade);
++}
+diff -urN linux.old/arch/mips/ar531x/Makefile linux.dev/arch/mips/ar531x/Makefile
+--- linux.old/arch/mips/ar531x/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/Makefile 2006-12-16 03:51:47.000000000 +0100
+@@ -0,0 +1,18 @@
++#
++# This file is subject to the terms and conditions of the GNU General Public
++# License. See the file "COPYING" in the main directory of this archive
++# for more details.
++#
++# Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++# Copyright (C) 2006 FON Technology, SL.
++# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++# Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++#
++
++# Makefile for Atheros ar531x boards
++#
++# Note! Dependencies are done automagically by 'make dep', which also
++# removes any old dependencies. DON'T put your own dependencies here
++# unless it's something special (ie not a .c file).
++#
++obj-y := setup.o prom.o irq.o devices.o
+diff -urN linux.old/arch/mips/ar531x/prom.c linux.dev/arch/mips/ar531x/prom.c
+--- linux.old/arch/mips/ar531x/prom.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/prom.c 2006-12-16 04:50:30.000000000 +0100
+@@ -0,0 +1,50 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright MontaVista Software Inc
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Prom setup file for ar531x
++ */
++
++#include <linux/init.h>
++#include <linux/autoconf.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/bootmem.h>
++
++#include <asm/bootinfo.h>
++#include <asm/addrspace.h>
++
++#include "ar531xlnx.h"
++
++void __init prom_init(void)
++{
++ u32 memsize, memcfg;
++
++ mips_machgroup = MACH_GROUP_AR531X;
++ mips_machtype = MACH_ATHEROS_AP51;
++
++ memcfg = sysRegRead(AR5315_MEM_CFG);
++ memsize = 1 + ((memcfg & SDRAM_DATA_WIDTH_M) >> SDRAM_DATA_WIDTH_S);
++ memsize <<= 1 + ((memcfg & SDRAM_COL_WIDTH_M) >> SDRAM_COL_WIDTH_S);
++ memsize <<= 1 + ((memcfg & SDRAM_ROW_WIDTH_M) >> SDRAM_ROW_WIDTH_S);
++ memsize <<= 3;
++ add_memory_region(0, memsize, BOOT_MEM_RAM);
++
++ strcpy(arcs_cmdline, "console=ttyS0,9600 rootfstype=squashfs,jffs2");
++}
++
++void __init prom_free_prom_memory(void)
++{
++}
++
++
+diff -urN linux.old/arch/mips/ar531x/setup.c linux.dev/arch/mips/ar531x/setup.c
+--- linux.old/arch/mips/ar531x/setup.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/arch/mips/ar531x/setup.c 2006-12-16 03:51:47.000000000 +0100
+@@ -0,0 +1,198 @@
++/*
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License. See the file "COPYING" in the main directory of this archive
++ * for more details.
++ *
++ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ */
++
++/*
++ * Initialization for ar531x SOC.
++ */
++
++#include <linux/autoconf.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/pm.h>
++#include <linux/serial.h>
++#include <linux/serial_core.h>
++#include <linux/types.h>
++#include <linux/string.h>
++
++#include <asm/reboot.h>
++#include <asm/io.h>
++#include <asm/time.h>
++#include <asm/pgtable.h>
++#include <asm/processor.h>
++#include <asm/reboot.h>
++#include <asm/system.h>
++#include <asm/serial.h>
++
++#include "ar531xlnx.h"
++
++void
++ar531x_restart(char *command)
++{
++ for(;;) {
++ /*
++ ** Cold reset does not work,work around is to use the GPIO reset bit.
++ */
++ unsigned int reg;
++
++ /* AR2317 reset */
++ sysRegWrite(AR5315_COLD_RESET,AR5317_RESET_SYSTEM);
++
++ reg = sysRegRead(AR5315_GPIO_DO);
++ reg &= ~(1 << AR5315_RESET_GPIO);
++ sysRegWrite(AR5315_GPIO_DO, reg);
++ (void)sysRegRead(AR5315_GPIO_DO); /* flush write to hardware */
++ }
++}
++
++void
++ar531x_halt(void)
++{
++ printk(KERN_NOTICE "\n** You can safely turn off the power\n");
++ while (1);
++}
++
++void
++ar531x_power_off(void)
++{
++ ar531x_halt();
++}
++
++char *get_system_type(void)
++{
++ return "Atheros AR5315";
++}
++
++/*
++ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
++ * to determine the predevisor value.
++ */
++static int __initdata CLOCKCTL1_PREDIVIDE_TABLE[4] = {
++ 1,
++ 2,
++ 4,
++ 5
++};
++
++static int __initdata PLLC_DIVIDE_TABLE[5] = {
++ 2,
++ 3,
++ 4,
++ 6,
++ 3
++};
++
++static unsigned int __init
++ar531x_sys_clk(unsigned int clockCtl)
++{
++ unsigned int pllcCtrl,cpuDiv;
++ unsigned int pllcOut,refdiv,fdiv,divby2;
++ unsigned int clkDiv;
++
++ pllcCtrl = sysRegRead(AR5315_PLLC_CTL);
++ refdiv = (pllcCtrl & PLLC_REF_DIV_M) >> PLLC_REF_DIV_S;
++ refdiv = CLOCKCTL1_PREDIVIDE_TABLE[refdiv];
++ fdiv = (pllcCtrl & PLLC_FDBACK_DIV_M) >> PLLC_FDBACK_DIV_S;
++ divby2 = (pllcCtrl & PLLC_ADD_FDBACK_DIV_M) >> PLLC_ADD_FDBACK_DIV_S;
++ divby2 += 1;
++ pllcOut = (40000000/refdiv)*(2*divby2)*fdiv;
++
++
++ /* clkm input selected */
++ switch(clockCtl & CPUCLK_CLK_SEL_M) {
++ case 0:
++ case 1:
++ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKM_DIV_M) >> PLLC_CLKM_DIV_S];
++ break;
++ case 2:
++ clkDiv = PLLC_DIVIDE_TABLE[(pllcCtrl & PLLC_CLKC_DIV_M) >> PLLC_CLKC_DIV_S];
++ break;
++ default:
++ pllcOut = 40000000;
++ clkDiv = 1;
++ break;
++ }
++ cpuDiv = (clockCtl & CPUCLK_CLK_DIV_M) >> CPUCLK_CLK_DIV_S;
++ cpuDiv = cpuDiv * 2 ?: 1;
++ return (pllcOut/(clkDiv * cpuDiv));
++}
++
++static inline unsigned int ar531x_cpu_frequency(void)
++{
++ return ar531x_sys_clk(sysRegRead(AR5315_CPUCLK));
++}
++
++static inline unsigned int ar531x_apb_frequency(void)
++{
++ return ar531x_sys_clk(sysRegRead(AR5315_AMBACLK));
++}
++
++
++void __init serial_setup(void)
++{
++ struct uart_port s;
++
++ memset(&s, 0, sizeof(s));
++
++ s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
++ s.iotype = UPIO_MEM;
++ s.uartclk = AR5315_UART_CLOCK_RATE;
++ s.irq = AR531X_MISC_IRQ_UART0;
++ s.regshift = 2;
++ s.mapbase = KSEG1ADDR(AR5315_UART0);
++ s.membase = (void __iomem *)s.mapbase;
++
++ early_serial_setup(&s);
++}
++
++void __init plat_timer_setup(struct irqaction *irq)
++{
++ unsigned int count;
++
++ /* Usually irq is timer_irqaction (timer_interrupt) */
++ setup_irq(AR531X_IRQ_CPU_CLOCK, irq);
++
++ /* to generate the first CPU timer interrupt */
++ count = read_c0_count();
++ write_c0_compare(count + 1000);
++}
++
++static void __init
++ar531x_time_init(void)
++{
++ mips_hpt_frequency = ar531x_cpu_frequency() / 2;
++}
++
++void __init plat_mem_setup(void)
++{
++ unsigned int config = read_c0_config();
++
++ /* Clear any lingering AHB errors */
++ write_c0_config(config & ~0x3);
++ sysRegWrite(AR5315_AHB_ERR0,AHB_ERROR_DET);
++ sysRegRead(AR5315_AHB_ERR1);
++ sysRegWrite(AR5315_WDC, WDC_IGNORE_EXPIRATION);
++
++ /* Disable data watchpoints */
++ write_c0_watchlo0(0);
++
++ board_time_init = ar531x_time_init;
++
++ _machine_restart = ar531x_restart;
++ _machine_halt = ar531x_halt;
++ pm_power_off = ar531x_power_off;
++
++ serial_setup();
++}
++
++EXPORT_SYMBOL(get_system_type);
+diff -urN linux.old/arch/mips/Kconfig linux.dev/arch/mips/Kconfig
+--- linux.old/arch/mips/Kconfig 2006-11-29 22:57:37.000000000 +0100
++++ linux.dev/arch/mips/Kconfig 2006-12-16 03:51:47.000000000 +0100
+@@ -145,6 +145,19 @@
+ note that a kernel built with this option selected will not be
+ able to run on normal units.
+
++config AR531X
++ bool 'Atheros AR531x/AR231x WiSoC (EXPERIMENTAL)'
++ depends on EXPERIMENTAL
++ select DMA_NONCOHERENT
++ select IRQ_CPU
++ select SYS_HAS_CPU_MIPS32_R1
++ select HAVE_STD_PC_SERIAL_PORT
++ select AR531X_COBRA
++ select AR5315
++ select AP51
++ select SYS_SUPPORTS_BIG_ENDIAN
++ select SYS_SUPPORTS_32BIT_KERNEL
++
+ config MIPS_COBALT
+ bool "Cobalt Server"
+ select DMA_NONCOHERENT
+@@ -864,6 +877,18 @@
+ config MIPS_DISABLE_OBSOLETE_IDE
+ bool
+
++config AR531X_COBRA
++ bool
++
++config AR5315
++ bool
++
++config AR5317
++ bool
++
++config AP51
++ bool
++
+ #
+ # Endianess selection. Suffiently obscure so many users don't know what to
+ # answer,so we try hard to limit the available choices. Also the use of a
+diff -urN linux.old/arch/mips/Makefile linux.dev/arch/mips/Makefile
+--- linux.old/arch/mips/Makefile 2006-12-14 23:53:29.000000000 +0100
++++ linux.dev/arch/mips/Makefile 2006-12-16 04:45:48.000000000 +0100
+@@ -267,6 +267,13 @@
+ load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
+
+ #
++# Atheros AR5312/AR2312 WiSoC
++#
++core-$(CONFIG_AR531X) += arch/mips/ar531x/
++cflags-$(CONFIG_AR531X) += -Iinclude/asm-mips/mach-atheros
++load-$(CONFIG_AR531X) += 0xffffffff80041000
++
++#
+ # Cobalt Server
+ #
+ core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
+diff -urN linux.old/include/asm-mips/bootinfo.h linux.dev/include/asm-mips/bootinfo.h
+--- linux.old/include/asm-mips/bootinfo.h 2006-11-29 22:57:37.000000000 +0100
++++ linux.dev/include/asm-mips/bootinfo.h 2006-12-16 03:51:47.000000000 +0100
+@@ -212,6 +212,19 @@
+ #define MACH_GROUP_NEC_EMMA2RH 25 /* NEC EMMA2RH (was 23) */
+ #define MACH_NEC_MARKEINS 0 /* NEC EMMA2RH Mark-eins */
+
++/*
++ * Valid machtype for group AR531X
++ */
++#define MACH_GROUP_AR531X 23
++#define MACH_ATHEROS_UNUSED 0
++#define MACH_ATHEROS_AP30 1 /* AP30 */
++#define MACH_ATHEROS_AP33 2 /* AP33 */
++#define MACH_ATHEROS_AP38 3 /* AP38 */
++#define MACH_ATHEROS_AP43 4 /* AP43 */
++#define MACH_ATHEROS_AP48 5 /* AP48 */
++#define MACH_ATHEROS_PB32 6 /* PB32 */
++#define MACH_ATHEROS_AP51 7 /* AP51 */
++
+ #define CL_SIZE COMMAND_LINE_SIZE
+
+ const char *get_system_type(void);
+diff -urN linux.old/include/asm-mips/mach-atheros/ar531x_platform.h linux.dev/include/asm-mips/mach-atheros/ar531x_platform.h
+--- linux.old/include/asm-mips/mach-atheros/ar531x_platform.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/include/asm-mips/mach-atheros/ar531x_platform.h 2006-12-16 04:27:21.000000000 +0100
+@@ -0,0 +1,14 @@
++#ifndef __AR531X_PLATFORM_H
++#define __AR531X_PLATFORM_H
++
++struct ar531x_eth {
++ int phy;
++ int mac;
++ u32 reset_base;
++ u32 reset_mac;
++ u32 reset_phy;
++ char *board_config;
++};
++
++#endif /* __AR531X_PLATFORM_H */
++
diff --git a/target/linux/atheros-2.6/patches/110-spiflash.patch b/target/linux/atheros-2.6/patches/110-spiflash.patch
new file mode 100644
index 000000000..a8fc4af8e
--- /dev/null
+++ b/target/linux/atheros-2.6/patches/110-spiflash.patch
@@ -0,0 +1,750 @@
+diff -urN linux.old/drivers/mtd/devices/Kconfig linux.dev/drivers/mtd/devices/Kconfig
+--- linux.old/drivers/mtd/devices/Kconfig 2006-11-29 22:57:37.000000000 +0100
++++ linux.dev/drivers/mtd/devices/Kconfig 2006-12-15 00:03:11.000000000 +0100
+@@ -68,6 +68,10 @@
+ used for program and data storage. Set up your spi devices
+ with the right board-specific platform data.
+
++config MTD_SPIFLASH
++ tristate "Atheros AR2315/6/7 SPI Flash support"
++ depends on MTD && AR531X_COBRA
++
+ config MTD_SLRAM
+ tristate "Uncached system RAM"
+ depends on MTD
+diff -urN linux.old/drivers/mtd/devices/Makefile linux.dev/drivers/mtd/devices/Makefile
+--- linux.old/drivers/mtd/devices/Makefile 2006-11-29 22:57:37.000000000 +0100
++++ linux.dev/drivers/mtd/devices/Makefile 2006-12-15 00:03:11.000000000 +0100
+@@ -17,3 +17,4 @@
+ obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
+ obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80) += m25p80.o
++obj-$(CONFIG_MTD_SPIFLASH) += spiflash.o
+diff -urN linux.old/drivers/mtd/devices/spiflash.c linux.dev/drivers/mtd/devices/spiflash.c
+--- linux.old/drivers/mtd/devices/spiflash.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/drivers/mtd/devices/spiflash.c 2006-12-15 08:26:11.000000000 +0100
+@@ -0,0 +1,595 @@
++
++/*
++ * MTD driver for the SPI Flash Memory support.
++ *
++ * Copyright (c) 2005-2006 Atheros Communications Inc.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ *
++ * This code is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++/*===========================================================================
++** !!!! VERY IMPORTANT NOTICE !!!! FLASH DATA STORED IN LITTLE ENDIAN FORMAT
++**
++** This module contains the Serial Flash access routines for the Atheros SOC.
++** The Atheros SOC integrates a SPI flash controller that is used to access
++** serial flash parts. The SPI flash controller executes in "Little Endian"
++** mode. THEREFORE, all WRITES and READS from the MIPS CPU must be
++** BYTESWAPPED! The SPI Flash controller hardware by default performs READ
++** ONLY byteswapping when accessed via the SPI Flash Alias memory region
++** (Physical Address 0x0800_0000 - 0x0fff_ffff). The data stored in the
++** flash sectors is stored in "Little Endian" format.
++**
++** The spiflash_write() routine performs byteswapping on all write
++** operations.
++**===========================================================================*/
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/version.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/squashfs_fs.h>
++#include <linux/root_dev.h>
++#include <asm/delay.h>
++#include <asm/io.h>
++#include "spiflash.h"
++
++/* debugging */
++/* #define SPIFLASH_DEBUG */
++
++#ifndef __BIG_ENDIAN
++#error This driver currently only works with big endian CPU.
++#endif
++
++#define MAX_PARTS 32
++
++static char module_name[] = "spiflash";
++
++#define MIN(a,b) ((a) < (b) ? (a) : (b))
++#define FALSE 0
++#define TRUE 1
++
++#define ROOTFS_NAME "rootfs"
++
++static __u32 spiflash_regread32(int reg);
++static void spiflash_regwrite32(int reg, __u32 data);
++static __u32 spiflash_sendcmd (int op);
++
++static void __init spidata_init(void);
++int __init spiflash_init (void);
++void __exit spiflash_exit (void);
++static int spiflash_probe (void);
++static int spiflash_erase (struct mtd_info *mtd,struct erase_info *instr);
++static int spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf);
++static int spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf);
++
++/* Flash configuration table */
++struct flashconfig {
++ __u32 byte_cnt;
++ __u32 sector_cnt;
++ __u32 sector_size;
++ __u32 cs_addrmask;
++} flashconfig_tbl[MAX_FLASH] =
++ {
++ { 0, 0, 0, 0},
++ { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT, STM_1MB_SECTOR_SIZE, 0x0},
++ { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT, STM_2MB_SECTOR_SIZE, 0x0},
++ { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT, STM_4MB_SECTOR_SIZE, 0x0},
++ { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT, STM_8MB_SECTOR_SIZE, 0x0}
++ };
++
++/* Mapping of generic opcodes to STM serial flash opcodes */
++struct opcodes {
++ __u16 code;
++ __s8 tx_cnt;
++ __s8 rx_cnt;
++} stm_opcodes[] = {
++ {STM_OP_WR_ENABLE, 1, 0},
++ {STM_OP_WR_DISABLE, 1, 0},
++ {STM_OP_RD_STATUS, 1, 1},
++ {STM_OP_WR_STATUS, 1, 0},
++ {STM_OP_RD_DATA, 4, 4},
++ {STM_OP_FAST_RD_DATA, 1, 0},
++ {STM_OP_PAGE_PGRM, 8, 0},
++ {STM_OP_SECTOR_ERASE, 4, 0},
++ {STM_OP_BULK_ERASE, 1, 0},
++ {STM_OP_DEEP_PWRDOWN, 1, 0},
++ {STM_OP_RD_SIG, 4, 1}
++};
++
++/* Driver private data structure */
++struct spiflash_data {
++ struct mtd_info *mtd;
++ struct mtd_partition *parsed_parts; /* parsed partitions */
++ void *spiflash_readaddr; /* memory mapped data for read */
++ void *spiflash_mmraddr; /* memory mapped register space */
++ spinlock_t mutex;
++};
++
++static struct spiflash_data *spidata;
++
++extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts);
++
++/***************************************************************************************************/
++
++static __u32
++spiflash_regread32(int reg)
++{
++ volatile __u32 *data = (__u32 *)(spidata->spiflash_mmraddr + reg);
++
++ return (*data);
++}
++
++static void
++spiflash_regwrite32(int reg, __u32 data)
++{
++ volatile __u32 *addr = (__u32 *)(spidata->spiflash_mmraddr + reg);
++
++ *addr = data;
++ return;
++}
++
++static __u32
++spiflash_sendcmd (int op)
++{
++ __u32 reg;
++ __u32 mask;
++ struct opcodes *ptr_opcode;
++
++ ptr_opcode = &stm_opcodes[op];
++
++ do {
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ spiflash_regwrite32(SPI_FLASH_OPCODE, ptr_opcode->code);
++
++ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt |
++ (ptr_opcode->rx_cnt << 4) | SPI_CTL_START;
++
++ spiflash_regwrite32(SPI_FLASH_CTL, reg);
++
++ if (ptr_opcode->rx_cnt > 0) {
++ do {
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ reg = (__u32) spiflash_regread32(SPI_FLASH_DATA);
++
++ switch (ptr_opcode->rx_cnt) {
++ case 1:
++ mask = 0x000000ff;
++ break;
++ case 2:
++ mask = 0x0000ffff;
++ break;
++ case 3:
++ mask = 0x00ffffff;
++ break;
++ default:
++ mask = 0xffffffff;
++ break;
++ }
++
++ reg &= mask;
++ }
++ else {
++ reg = 0;
++ }
++
++ return reg;
++}
++
++/* Probe SPI flash device
++ * Function returns 0 for failure.
++ * and flashconfig_tbl array index for success.
++ */
++static int
++spiflash_probe (void)
++{
++ __u32 sig;
++ int flash_size;
++
++ if (!spidata)
++ spidata_init();
++
++ if (!spidata) /* init failed */
++ return 0;
++
++ /* Read the signature on the flash device */
++ sig = spiflash_sendcmd(SPI_RD_SIG);
++
++ switch (sig) {
++ case STM_8MBIT_SIGNATURE:
++ flash_size = FLASH_1MB;
++ break;
++ case STM_16MBIT_SIGNATURE:
++ flash_size = FLASH_2MB;
++ break;
++ case STM_32MBIT_SIGNATURE:
++ flash_size = FLASH_4MB;
++ break;
++ case STM_64MBIT_SIGNATURE:
++ flash_size = FLASH_8MB;
++ break;
++ default:
++ printk (KERN_WARNING "%s: Read of flash device signature failed!\n", module_name);
++ return (0);
++ }
++
++ return (flash_size);
++}
++
++
++static int
++spiflash_erase (struct mtd_info *mtd,struct erase_info *instr)
++{
++ struct opcodes *ptr_opcode;
++ __u32 temp, reg;
++ int finished = FALSE;
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "%s(addr = 0x%.8x, len = %d)\n",__FUNCTION__,instr->addr,instr->len);
++#endif
++
++ /* sanity checks */
++ if (instr->addr + instr->len > mtd->size) return (-EINVAL);
++
++ ptr_opcode = &stm_opcodes[SPI_SECTOR_ERASE];
++
++ temp = ((__u32)instr->addr << 8) | (__u32)(ptr_opcode->code);
++ spin_lock(&spidata->mutex);
++ spiflash_sendcmd(SPI_WRITE_ENABLE);
++ do {
++ schedule();
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ spiflash_regwrite32(SPI_FLASH_OPCODE, temp);
++
++ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | ptr_opcode->tx_cnt | SPI_CTL_START;
++ spiflash_regwrite32(SPI_FLASH_CTL, reg);
++
++ do {
++ schedule();
++ reg = spiflash_sendcmd(SPI_RD_STATUS);
++ if (!(reg & SPI_STATUS_WIP)) {
++ finished = TRUE;
++ }
++ } while (!finished);
++ spin_unlock(&spidata->mutex);
++
++ instr->state = MTD_ERASE_DONE;
++ if (instr->callback) instr->callback (instr);
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "%s return\n",__FUNCTION__);
++#endif
++ return (0);
++}
++
++static int
++spiflash_read (struct mtd_info *mtd, loff_t from,size_t len,size_t *retlen,u_char *buf)
++{
++ u_char *read_addr;
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "%s(from = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) from,(int)len);
++#endif
++
++ /* sanity checks */
++ if (!len) return (0);
++ if (from + len > mtd->size) return (-EINVAL);
++
++
++ /* we always read len bytes */
++ *retlen = len;
++
++ read_addr = (u_char *)(spidata->spiflash_readaddr + from);
++ spin_lock(&spidata->mutex);
++ memcpy(buf, read_addr, len);
++ spin_unlock(&spidata->mutex);
++
++ return (0);
++}
++
++static int
++spiflash_write (struct mtd_info *mtd,loff_t to,size_t len,size_t *retlen,const u_char *buf)
++{
++ int done = FALSE, page_offset, bytes_left, finished;
++ __u32 xact_len, spi_data = 0, opcode, reg;
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "%s(to = 0x%.8x, len = %d)\n",__FUNCTION__,(__u32) to,len);
++#endif
++
++ *retlen = 0;
++
++ /* sanity checks */
++ if (!len) return (0);
++ if (to + len > mtd->size) return (-EINVAL);
++
++ opcode = stm_opcodes[SPI_PAGE_PROGRAM].code;
++ bytes_left = len;
++
++ while (done == FALSE) {
++ xact_len = MIN(bytes_left, sizeof(__u32));
++
++ /* 32-bit writes cannot span across a page boundary
++ * (256 bytes). This types of writes require two page
++ * program operations to handle it correctly. The STM part
++ * will write the overflow data to the beginning of the
++ * current page as opposed to the subsequent page.
++ */
++ page_offset = (to & (STM_PAGE_SIZE - 1)) + xact_len;
++
++ if (page_offset > STM_PAGE_SIZE) {
++ xact_len -= (page_offset - STM_PAGE_SIZE);
++ }
++
++ spin_lock(&spidata->mutex);
++ spiflash_sendcmd(SPI_WRITE_ENABLE);
++
++ do {
++ schedule();
++ reg = spiflash_regread32(SPI_FLASH_CTL);
++ } while (reg & SPI_CTL_BUSY);
++
++ switch (xact_len) {
++ case 1:
++ spi_data = (u32) ((u8) *buf);
++ break;
++ case 2:
++ spi_data = (buf[1] << 8) | buf[0];
++ break;
++ case 3:
++ spi_data = (buf[2] << 16) | (buf[1] << 8) | buf[0];
++ break;
++ case 4:
++ spi_data = (buf[3] << 24) | (buf[2] << 16) |
++ (buf[1] << 8) | buf[0];
++ break;
++ default:
++ printk("spiflash_write: default case\n");
++ break;
++ }
++
++ spiflash_regwrite32(SPI_FLASH_DATA, spi_data);
++ opcode = (opcode & SPI_OPCODE_MASK) | ((__u32)to << 8);
++ spiflash_regwrite32(SPI_FLASH_OPCODE, opcode);
++
++ reg = (reg & ~SPI_CTL_TX_RX_CNT_MASK) | (xact_len + 4) | SPI_CTL_START;
++ spiflash_regwrite32(SPI_FLASH_CTL, reg);
++ finished = FALSE;
++
++ do {
++ schedule();
++ reg = spiflash_sendcmd(SPI_RD_STATUS);
++ if (!(reg & SPI_STATUS_WIP)) {
++ finished = TRUE;
++ }
++ } while (!finished);
++ spin_unlock(&spidata->mutex);
++
++ bytes_left -= xact_len;
++ to += xact_len;
++ buf += xact_len;
++
++ *retlen += xact_len;
++
++ if (bytes_left == 0) {
++ done = TRUE;
++ }
++ }
++
++ return (0);
++}
++
++static void __init spidata_init(void)
++{
++ if (spidata)
++ return;
++
++ spidata = kmalloc(sizeof(struct spiflash_data), GFP_KERNEL);
++ spin_lock_init(&spidata->mutex);
++
++ if (!spidata)
++ return;
++
++ spidata->spiflash_mmraddr = ioremap_nocache(SPI_FLASH_MMR, SPI_FLASH_MMR_SIZE);
++
++ if (!spidata->spiflash_mmraddr) {
++ printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
++ kfree(spidata);
++ spidata = NULL;
++ }
++}
++
++#ifdef CONFIG_MTD_PARTITIONS
++static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
++#endif
++
++int __init
++spiflash_init (void)
++{
++ int result = -1, i, j;
++ u32 len;
++ int index, num_parts;
++ struct mtd_info *mtd;
++ struct mtd_partition *mtd_parts;
++ char *buf;
++ struct mtd_partition *part;
++ struct squashfs_super_block *sb;
++ u32 config_start;
++
++ spidata_init();
++
++ if (!spidata)
++ return (-ENXIO);
++
++ mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
++ if (!mtd) {
++ kfree(spidata);
++ return (-ENXIO);
++ }
++
++ printk ("MTD driver for SPI flash.\n");
++ printk ("%s: Probing for Serial flash ...\n", module_name);
++ if (!(index = spiflash_probe ())) {
++ printk (KERN_WARNING "%s: Found no serial flash device\n", module_name);
++ kfree(mtd);
++ kfree(spidata);
++ return (-ENXIO);
++ }
++
++ printk ("%s: Found SPI serial Flash.\n", module_name);
++
++ spidata->spiflash_readaddr = ioremap_nocache(SPI_FLASH_READ, flashconfig_tbl[index].byte_cnt);
++ if (!spidata->spiflash_readaddr) {
++ printk (KERN_WARNING "%s: Failed to map flash device\n", module_name);
++ kfree(mtd);
++ kfree(spidata);
++ return (-ENXIO);
++ }
++
++ mtd->name = module_name;
++ mtd->type = MTD_NORFLASH;
++ mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
++ mtd->size = flashconfig_tbl[index].byte_cnt;
++ mtd->erasesize = flashconfig_tbl[index].sector_size;
++ mtd->writesize = 1;
++ mtd->numeraseregions = 0;
++ mtd->eraseregions = NULL;
++ mtd->erase = spiflash_erase;
++ mtd->read = spiflash_read;
++ mtd->write = spiflash_write;
++ mtd->owner = THIS_MODULE;
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG
++ "mtd->name = %s\n"
++ "mtd->size = 0x%.8x (%uM)\n"
++ "mtd->erasesize = 0x%.8x (%uK)\n"
++ "mtd->numeraseregions = %d\n",
++ mtd->name,
++ mtd->size, mtd->size / (1024*1024),
++ mtd->erasesize, mtd->erasesize / 1024,
++ mtd->numeraseregions);
++
++ if (mtd->numeraseregions) {
++ for (result = 0; result < mtd->numeraseregions; result++) {
++ printk (KERN_DEBUG
++ "\n\n"
++ "mtd->eraseregions[%d].offset = 0x%.8x\n"
++ "mtd->eraseregions[%d].erasesize = 0x%.8x (%uK)\n"
++ "mtd->eraseregions[%d].numblocks = %d\n",
++ result,mtd->eraseregions[result].offset,
++ result,mtd->eraseregions[result].erasesize,mtd->eraseregions[result].erasesize / 1024,
++ result,mtd->eraseregions[result].numblocks);
++ }
++ }
++#endif
++
++ /* parse redboot partitions */
++ num_parts = parse_mtd_partitions(mtd, part_probe_types, &spidata->parsed_parts, 0);
++
++ mtd_parts = kzalloc(sizeof(struct mtd_partition) * MAX_PARTS, GFP_KERNEL);
++ buf = kmalloc(mtd->erasesize, GFP_KERNEL);
++ sb = (struct squashfs_super_block *) buf;
++ for (i = j = 0; i < num_parts; i++, j++) {
++ part = &mtd_parts[j];
++ memcpy(part, &spidata->parsed_parts[i], sizeof(struct mtd_partition));
++
++ if (!strcmp(part->name, ROOTFS_NAME)) {
++ /* create the root device */
++ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, i);
++
++ part->size -= mtd->erasesize;
++ config_start = part->offset + part->size;
++
++ while ((mtd->read(mtd, part->offset, mtd->erasesize, &len, buf) == 0) &&
++ (len == mtd->erasesize) &&
++ (*((u32 *) buf) == SQUASHFS_MAGIC) &&
++ (sb->bytes_used > 0)) {
++
++ /* this is squashfs, allocate another partition starting from the end of filesystem data */
++ memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
++
++ len = (u32) sb->bytes_used;
++ len += (part->offset & 0x000fffff);
++ len += (mtd->erasesize - 1);
++ len &= ~(mtd->erasesize - 1);
++ len -= (part->offset & 0x000fffff);
++
++ if (len + mtd->erasesize > part->size)
++ break;
++
++ part = &mtd_parts[++j];
++
++ part->offset += len;
++ part->size -= len;
++
++ part->name = kmalloc(10, GFP_KERNEL);
++ sprintf(part->name, "rootfs%d", j - i);
++ }
++ }
++ if (!strcmp(part->name, "RedBoot config")) {
++ /* add anoterh partition for the board config data */
++ memcpy(&mtd_parts[j + 1], part, sizeof(struct mtd_partition));
++ j++;
++ part = &mtd_parts[j];
++ part->offset += part->size;
++ part->size = mtd->erasesize;
++
++ part->name = kmalloc(16, GFP_KERNEL);
++ sprintf(part->name, "board_config");
++ }
++ }
++ num_parts += j - i;
++ kfree(buf);
++
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "Found %d redboot partitions\n", num_parts);
++#endif
++ if (num_parts) {
++ result = add_mtd_partitions(mtd, mtd_parts, num_parts);
++ } else {
++#ifdef SPIFLASH_DEBUG
++ printk (KERN_DEBUG "Did not find any redboot partitions\n");
++#endif
++ kfree(mtd);
++ kfree(spidata);
++ return (-ENXIO);
++ }
++
++ spidata->mtd = mtd;
++
++ return (result);
++}
++
++void __exit
++spiflash_exit (void)
++{
++ if (spidata && spidata->parsed_parts) {
++ del_mtd_partitions (spidata->mtd);
++ kfree(spidata->mtd);
++ kfree(spidata);
++ }
++}
++
++module_init (spiflash_init);
++module_exit (spiflash_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Atheros Communications Inc");
++MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");
++
+diff -urN linux.old/drivers/mtd/devices/spiflash.h linux.dev/drivers/mtd/devices/spiflash.h
+--- linux.old/drivers/mtd/devices/spiflash.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.dev/drivers/mtd/devices/spiflash.h 2006-12-15 06:59:43.000000000 +0100
+@@ -0,0 +1,124 @@
++/*
++ * SPI Flash Memory support header file.
++ *
++ * $Id: //depot/sw/releases/linuxsrc/src/kernels/mips-linux-2.4.25/drivers/mtd/devices/spiflash.h#3 $
++ *
++ *
++ * Copyright (c) 2005, Atheros Communications Inc.
++ * Copyright (C) 2006 FON Technology, SL.
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ *
++ * This code is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++#define FLASH_1MB 1
++#define FLASH_2MB 2
++#define FLASH_4MB 3
++#define FLASH_8MB 4
++#define MAX_FLASH 5
++
++#define STM_PAGE_SIZE 256
++
++#define SPI_WRITE_ENABLE 0
++#define SPI_WRITE_DISABLE 1
++#define SPI_RD_STATUS 2
++#define SPI_WR_STATUS 3
++#define SPI_RD_DATA 4
++#define SPI_FAST_RD_DATA 5
++#define SPI_PAGE_PROGRAM 6
++#define SPI_SECTOR_ERASE 7
++#define SPI_BULK_ERASE 8
++#define SPI_DEEP_PWRDOWN 9
++#define SPI_RD_SIG 10
++#define SPI_MAX_OPCODES 11
++
++#define SFI_WRITE_BUFFER_SIZE 4
++#define SFI_FLASH_ADDR_MASK 0x00ffffff
++
++#define STM_8MBIT_SIGNATURE 0x13
++#define STM_M25P80_BYTE_COUNT 1048576
++#define STM_M25P80_SECTOR_COUNT 16
++#define STM_M25P80_SECTOR_SIZE 0x10000
++
++#define STM_16MBIT_SIGNATURE 0x14
++#define STM_M25P16_BYTE_COUNT 2097152
++#define STM_M25P16_SECTOR_COUNT 32
++#define STM_M25P16_SECTOR_SIZE 0x10000
++
++#define STM_32MBIT_SIGNATURE 0x15
++#define STM_M25P32_BYTE_COUNT 4194304
++#define STM_M25P32_SECTOR_COUNT 64
++#define STM_M25P32_SECTOR_SIZE 0x10000
++
++#define STM_64MBIT_SIGNATURE 0x16
++#define STM_M25P64_BYTE_COUNT 8388608
++#define STM_M25P64_SECTOR_COUNT 128
++#define STM_M25P64_SECTOR_SIZE 0x10000
++
++#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT
++#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
++#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE
++#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT
++#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
++#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE
++#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT
++#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
++#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE
++#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT
++#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
++#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE
++
++/*
++ * ST Microelectronics Opcodes for Serial Flash
++ */
++
++#define STM_OP_WR_ENABLE 0x06 /* Write Enable */
++#define STM_OP_WR_DISABLE 0x04 /* Write Disable */
++#define STM_OP_RD_STATUS 0x05 /* Read Status */
++#define STM_OP_WR_STATUS 0x01 /* Write Status */
++#define STM_OP_RD_DATA 0x03 /* Read Data */
++#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */
++#define STM_OP_PAGE_PGRM 0x02 /* Page Program */
++#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */
++#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */
++#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */
++#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */
++
++#define STM_STATUS_WIP 0x01 /* Write-In-Progress */
++#define STM_STATUS_WEL 0x02 /* Write Enable Latch */
++#define STM_STATUS_BP0 0x04 /* Block Protect 0 */
++#define STM_STATUS_BP1 0x08 /* Block Protect 1 */
++#define STM_STATUS_BP2 0x10 /* Block Protect 2 */
++#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */
++
++/*
++ * SPI Flash Interface Registers
++ */
++#define AR531XPLUS_SPI_READ 0x08000000
++#define AR531XPLUS_SPI_MMR 0x11300000
++#define AR531XPLUS_SPI_MMR_SIZE 12
++
++#define AR531XPLUS_SPI_CTL 0x00
++#define AR531XPLUS_SPI_OPCODE 0x04
++#define AR531XPLUS_SPI_DATA 0x08
++
++#define SPI_FLASH_READ AR531XPLUS_SPI_READ
++#define SPI_FLASH_MMR AR531XPLUS_SPI_MMR
++#define SPI_FLASH_MMR_SIZE AR531XPLUS_SPI_MMR_SIZE
++#define SPI_FLASH_CTL AR531XPLUS_SPI_CTL
++#define SPI_FLASH_OPCODE AR531XPLUS_SPI_OPCODE
++#define SPI_FLASH_DATA AR531XPLUS_SPI_DATA
++
++#define SPI_CTL_START 0x00000100
++#define SPI_CTL_BUSY 0x00010000
++#define SPI_CTL_TXCNT_MASK 0x0000000f
++#define SPI_CTL_RXCNT_MASK 0x000000f0
++#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
++#define SPI_CTL_SIZE_MASK 0x00060000
++
++#define SPI_CTL_CLK_SEL_MASK 0x03000000
++#define SPI_OPCODE_MASK 0x000000ff
++
++#define SPI_STATUS_WIP STM_STATUS_WIP
+
diff --git a/target/linux/atheros-2.6/patches/120-enable_wireless_for_ahb.patch b/target/linux/atheros-2.6/patches/120-enable_wireless_for_ahb.patch
new file mode 100644
index 000000000..616f39458
--- /dev/null
+++ b/target/linux/atheros-2.6/patches/120-enable_wireless_for_ahb.patch
@@ -0,0 +1,13 @@
+diff -urN linux.old/drivers/net/wireless/Kconfig linux.dev/drivers/net/wireless/Kconfig
+--- linux.old/drivers/net/wireless/Kconfig 2006-11-29 22:57:37.000000000 +0100
++++ linux.dev/drivers/net/wireless/Kconfig 2006-12-15 00:03:15.000000000 +0100
+@@ -545,7 +545,7 @@
+ # yes, this works even when no drivers are selected
+ config NET_WIRELESS
+ bool
+- depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA)
++ depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA || AR531X)
+ default y
+
+ endmenu
+
diff --git a/target/linux/atheros-2.6/patches/130-ar2313_ethernet.patch b/target/linux/atheros-2.6/patches/130-ar2313_ethernet.patch
new file mode 100644
index 000000000..b1ae0503d
--- /dev/null
+++ b/target/linux/atheros-2.6/patches/130-ar2313_ethernet.patch
@@ -0,0 +1,2072 @@
+diff -urN linux.old/drivers/net/ar2313/ar2313.c linux.eth/drivers/net/ar2313/ar2313.c
+--- linux.old/drivers/net/ar2313/ar2313.c 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/ar2313.c 2006-12-16 04:30:44.000000000 +0100
+@@ -0,0 +1,1545 @@
++/*
++ * ar2313.c: Linux driver for the Atheros AR231z Ethernet device.
++ *
++ * Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com>
++ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
++ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
++ *
++ * Thanks to Atheros for providing hardware and documentation
++ * enabling me to write this driver.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * Additional credits:
++ * This code is taken from John Taylor's Sibyte driver and then
++ * modified for the AR2313.
++ */
++
++#include <linux/autoconf.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/ioport.h>
++#include <linux/pci.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/skbuff.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/mm.h>
++#include <linux/highmem.h>
++#include <linux/sockios.h>
++#include <linux/pkt_sched.h>
++#include <linux/compile.h>
++#include <linux/mii.h>
++#include <linux/ethtool.h>
++#include <linux/ctype.h>
++#include <linux/platform_device.h>
++
++#include <net/sock.h>
++#include <net/ip.h>
++
++#include <asm/system.h>
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/byteorder.h>
++#include <asm/uaccess.h>
++#include <asm/bootinfo.h>
++
++#include <ar531x_platform.h>
++
++#undef INDEX_DEBUG
++#define DEBUG 0
++#define DEBUG_TX 0
++#define DEBUG_RX 0
++#define DEBUG_INT 0
++#define DEBUG_MC 0
++#define DEBUG_ERR 1
++
++#ifndef min
++#define min(a,b) (((a)<(b))?(a):(b))
++#endif
++
++#ifndef SMP_CACHE_BYTES
++#define SMP_CACHE_BYTES L1_CACHE_BYTES
++#endif
++
++#ifndef SET_MODULE_OWNER
++#define SET_MODULE_OWNER(dev) {do{} while(0);}
++#define AR2313_MOD_INC_USE_COUNT MOD_INC_USE_COUNT
++#define AR2313_MOD_DEC_USE_COUNT MOD_DEC_USE_COUNT
++#else
++#define AR2313_MOD_INC_USE_COUNT {do{} while(0);}
++#define AR2313_MOD_DEC_USE_COUNT {do{} while(0);}
++#endif
++
++#define PHYSADDR(a) ((_ACAST32_ (a)) & 0x1fffffff)
++
++static char ifname[5] = "bond";
++
++module_param_string(ifname, ifname, 5, 0);
++
++#define AR2313_MBOX_SET_BIT 0x8
++
++#define BOARD_IDX_STATIC 0
++#define BOARD_IDX_OVERFLOW -1
++
++#include "ar2313_msg.h"
++#include "platform.h"
++#include "dma.h"
++#include "ar2313.h"
++
++/*
++ * New interrupt handler strategy:
++ *
++ * An old interrupt handler worked using the traditional method of
++ * replacing an skbuff with a new one when a packet arrives. However
++ * the rx rings do not need to contain a static number of buffer
++ * descriptors, thus it makes sense to move the memory allocation out
++ * of the main interrupt handler and do it in a bottom half handler
++ * and only allocate new buffers when the number of buffers in the
++ * ring is below a certain threshold. In order to avoid starving the
++ * NIC under heavy load it is however necessary to force allocation
++ * when hitting a minimum threshold. The strategy for alloction is as
++ * follows:
++ *
++ * RX_LOW_BUF_THRES - allocate buffers in the bottom half
++ * RX_PANIC_LOW_THRES - we are very low on buffers, allocate
++ * the buffers in the interrupt handler
++ * RX_RING_THRES - maximum number of buffers in the rx ring
++ *
++ * One advantagous side effect of this allocation approach is that the
++ * entire rx processing can be done without holding any spin lock
++ * since the rx rings and registers are totally independent of the tx
++ * ring and its registers. This of course includes the kmalloc's of
++ * new skb's. Thus start_xmit can run in parallel with rx processing
++ * and the memory allocation on SMP systems.
++ *
++ * Note that running the skb reallocation in a bottom half opens up
++ * another can of races which needs to be handled properly. In
++ * particular it can happen that the interrupt handler tries to run
++ * the reallocation while the bottom half is either running on another
++ * CPU or was interrupted on the same CPU. To get around this the
++ * driver uses bitops to prevent the reallocation routines from being
++ * reentered.
++ *
++ * TX handling can also be done without holding any spin lock, wheee
++ * this is fun! since tx_csm is only written to by the interrupt
++ * handler.
++ */
++
++/*
++ * Threshold values for RX buffer allocation - the low water marks for
++ * when to start refilling the rings are set to 75% of the ring
++ * sizes. It seems to make sense to refill the rings entirely from the
++ * intrrupt handler once it gets below the panic threshold, that way
++ * we don't risk that the refilling is moved to another CPU when the
++ * one running the interrupt handler just got the slab code hot in its
++ * cache.
++ */
++#define RX_RING_SIZE AR2313_DESCR_ENTRIES
++#define RX_PANIC_THRES (RX_RING_SIZE/4)
++#define RX_LOW_THRES ((3*RX_RING_SIZE)/4)
++#define CRC_LEN 4
++#define RX_OFFSET 2
++
++#define AR2313_BUFSIZE (AR2313_MTU + ETH_HLEN + CRC_LEN + RX_OFFSET)
++
++#ifdef MODULE
++MODULE_AUTHOR("Sameer Dekate <sdekate@arubanetworks.com>, Imre Kaloz <kaloz@openwrt.org>, Felix Fietkau <nbd@openwrt.org>");
++MODULE_DESCRIPTION("AR2313 Ethernet driver");
++#endif
++
++#if DEBUG
++static char version[] __initdata =
++ "ar2313.c: v0.03 2006/07/12 sdekate@arubanetworks.com\n";
++#endif /* DEBUG */
++
++#define virt_to_phys(x) ((u32)(x) & 0x1fffffff)
++
++// prototypes
++static short armiiread(short phy, short reg);
++static void armiiwrite(short phy, short reg, short data);
++#ifdef TX_TIMEOUT
++static void ar2313_tx_timeout(struct net_device *dev);
++#endif
++static void ar2313_halt(struct net_device *dev);
++static void rx_tasklet_func(unsigned long data);
++static void ar2313_multicast_list(struct net_device *dev);
++
++static int probed __initdata = 0;
++static unsigned long ar_eth_base;
++static unsigned long ar_dma_base;
++static unsigned long ar_int_base;
++static unsigned long ar_int_mac_mask;
++static unsigned long ar_int_phy_mask;
++
++#ifndef ERR
++#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
++#endif
++
++
++int __init ar2313_probe(struct platform_device *pdev)
++{
++ struct net_device *dev;
++ struct ar2313_private *sp;
++ struct ar531x_eth *cfg;
++ struct resource *res;
++ int version_disp;
++ char name[64] ;
++
++ if (probed)
++ return -ENODEV;
++ probed++;
++
++ version_disp = 0;
++ sprintf(name, "%s%%d", ifname) ;
++ dev = alloc_etherdev(sizeof(struct ar2313_private));
++
++ if (dev == NULL) {
++ printk(KERN_ERR "ar2313: Unable to allocate net_device structure!\n");
++ return -ENOMEM;
++ }
++
++ SET_MODULE_OWNER(dev);
++ platform_set_drvdata(pdev, dev);
++
++ sp = dev->priv;
++ sp->dev = dev;
++ cfg = pdev->dev.platform_data;
++
++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "eth_membase");
++ if (!res)
++ return -ENODEV;
++
++ sp->link = 0;
++ ar_eth_base = res->start;
++ ar_dma_base = ar_eth_base + 0x1000;
++ ar_int_base = cfg->reset_base;
++ ar_int_mac_mask = cfg->reset_mac;
++ ar_int_phy_mask = cfg->reset_phy;
++ sp->phy = cfg->phy;
++
++ dev->irq = platform_get_irq_byname(pdev, "eth_irq");
++
++ spin_lock_init(&sp->lock);
++
++ /* initialize func pointers */
++ dev->open = &ar2313_open;
++ dev->stop = &ar2313_close;
++ dev->hard_start_xmit = &ar2313_start_xmit;
++
++ dev->get_stats = &ar2313_get_stats;
++ dev->set_multicast_list = &ar2313_multicast_list;
++#ifdef TX_TIMEOUT
++ dev->tx_timeout = ar2313_tx_timeout;
++ dev->watchdog_timeo = AR2313_TX_TIMEOUT;
++#endif
++ dev->do_ioctl = &ar2313_ioctl;
++
++ // SAMEER: do we need this?
++ dev->features |= NETIF_F_SG | NETIF_F_HIGHDMA;
++
++ tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev);
++ tasklet_disable(&sp->rx_tasklet);
++
++ /* display version info if adapter is found */
++ if (!version_disp) {
++ /* set display flag to TRUE so that */
++ /* we only display this string ONCE */
++ version_disp = 1;
++#if DEBUG
++ printk(version);
++#endif /* DEBUG */
++ }
++
++#if 0
++ request_region(PHYSADDR(ar_eth_base), ETHERNET_SIZE*ETHERNET_MACS,
++ "AR2313ENET");
++#endif
++
++ sp->eth_regs = ioremap_nocache(PHYSADDR(ar_eth_base), sizeof(*sp->eth_regs));
++ if (!sp->eth_regs) {
++ printk("Can't remap eth registers\n");
++ return(-ENXIO);
++ }
++
++ sp->dma_regs = ioremap_nocache(PHYSADDR(ar_eth_base + 0x1000), sizeof(*sp->dma_regs));
++ dev->base_addr = (unsigned int) sp->dma_regs;
++ if (!sp->dma_regs) {
++ printk("Can't remap DMA registers\n");
++ return(-ENXIO);
++ }
++
++ sp->int_regs = ioremap_nocache(PHYSADDR(ar_int_base), 4);
++ if (!sp->int_regs) {
++ printk("Can't remap INTERRUPT registers\n");
++ return(-ENXIO);
++ }
++
++ strncpy(sp->name, "Atheros AR2313", sizeof (sp->name) - 1);
++ sp->name [sizeof (sp->name) - 1] = '\0';
++
++ {
++ /* XXX: Will have to rewrite this part later */
++ char *configstart;
++ unsigned char def_mac[6] = {0, 0xaa, 0xbb, 0xcc, 0xdd, 0xee};
++
++ configstart = (char *) cfg->board_config;
++
++ if (!configstart) {
++ printk("no valid mac found, using defaults");
++ memcpy(dev->dev_addr, def_mac, 6);
++ } else {
++ memcpy(dev->dev_addr, ((u8 *)configstart)+102, 6);
++ }
++ }
++
++ sp->board_idx = BOARD_IDX_STATIC;
++
++ if (ar2313_init(dev)) {
++ /*
++ * ar2313_init() calls ar2313_init_cleanup() on error.
++ */
++ kfree(dev);
++ return -ENODEV;
++ }
++
++ if (register_netdev(dev)){
++ printk("%s: register_netdev failed\n", __func__);
++ return -1;
++ }
++
++ printk("%s: %s: %02x:%02x:%02x:%02x:%02x:%02x, irq %d\n",
++ dev->name, sp->name,
++ dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
++ dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5],
++ dev->irq);
++
++ /* start link poll timer */
++ ar2313_setup_timer(dev);
++
++ return 0;
++}
++
++#if 0
++static void ar2313_dump_regs(struct net_device *dev)
++{
++ unsigned int *ptr, i;
++ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
++
++ ptr = (unsigned int *)sp->eth_regs;
++ for(i=0; i< (sizeof(ETHERNET_STRUCT)/ sizeof(unsigned int)); i++, ptr++) {
++ printk("ENET: %08x = %08x\n", (int)ptr, *ptr);
++ }
++
++ ptr = (unsigned int *)sp->dma_regs;
++ for(i=0; i< (sizeof(DMA)/ sizeof(unsigned int)); i++, ptr++) {
++ printk("DMA: %08x = %08x\n", (int)ptr, *ptr);
++ }
++
++ ptr = (unsigned int *)sp->int_regs;
++ for(i=0; i< (sizeof(INTERRUPT)/ sizeof(unsigned int)); i++, ptr++){
++ printk("INT: %08x = %08x\n", (int)ptr, *ptr);
++ }
++
++ for (i = 0; i < AR2313_DESCR_ENTRIES; i++) {
++ ar2313_descr_t *td = &sp->tx_ring[i];
++ printk("Tx desc %2d: %08x %08x %08x %08x\n", i,
++ td->status, td->devcs, td->addr, td->descr);
++ }
++}
++#endif
++
++#ifdef TX_TIMEOUT
++static void
++ar2313_tx_timeout(struct net_device *dev)
++{
++ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
++ unsigned long flags;
++
++#if DEBUG_TX
++ printk("Tx timeout\n");
++#endif
++ spin_lock_irqsave(&sp->lock, flags);
++ ar2313_restart(dev);
++ spin_unlock_irqrestore(&sp->lock, flags);
++}
++#endif
++
++#if DEBUG_MC
++static void
++printMcList(struct net_device *dev)
++{
++ struct dev_mc_list *list = dev->mc_list;
++ int num=0, i;
++ while(list){
++ printk("%d MC ADDR ", num);
++ for(i=0;i<list->dmi_addrlen;i++) {
++ printk(":%02x", list->dmi_addr[i]);
++ }
++ list = list->next;
++ printk("\n");
++ }
++}
++#endif
++
++/*
++ * Set or clear the multicast filter for this adaptor.
++ * THIS IS ABSOLUTE CRAP, disabled
++ */
++static void
++ar2313_multicast_list(struct net_device *dev)
++{
++ /*
++ * Always listen to broadcasts and
++ * treat IFF bits independently
++ */
++ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
++ unsigned int recognise;
++
++ recognise = sp->eth_regs->mac_control;
++
++ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
++ recognise |= MAC_CONTROL_PR;
++ } else {
++ recognise &= ~MAC_CONTROL_PR;
++ }
++
++ if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) {
++#if DEBUG_MC
++ printMcList(dev);
++ printk("%s: all MULTICAST mc_count %d\n", __FUNCTION__, dev->mc_count);
++#endif
++ recognise |= MAC_CONTROL_PM;/* all multicast */
++ } else if (dev->mc_count > 0) {
++#if DEBUG_MC
++ printMcList(dev);
++ printk("%s: mc_count %d\n", __FUNCTION__, dev->mc_count);
++#endif
++ recognise |= MAC_CONTROL_PM; /* for the time being */
++ }
++#if DEBUG_MC
++ printk("%s: setting %08x to %08x\n", __FUNCTION__, (int)sp->eth_regs, recognise);
++#endif
++
++ sp->eth_regs->mac_control = recognise;
++}
++
++static void rx_tasklet_cleanup(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++
++ /*
++ * Tasklet may be scheduled. Need to get it removed from the list
++ * since we're about to free the struct.
++ */
++
++ sp->unloading = 1;
++ tasklet_enable(&sp->rx_tasklet);
++ tasklet_kill(&sp->rx_tasklet);
++}
++
++static int __exit ar2313_remove(struct platform_device *pdev)
++{
++ struct net_device *dev = platform_get_drvdata(pdev);
++ rx_tasklet_cleanup(dev);
++ ar2313_init_cleanup(dev);
++ unregister_netdev(dev);
++ kfree(dev);
++ return 0;
++}
++
++
++/*
++ * Restart the AR2313 ethernet controller.
++ */
++static int ar2313_restart(struct net_device *dev)
++{
++ /* disable interrupts */
++ disable_irq(dev->irq);
++
++ /* stop mac */
++ ar2313_halt(dev);
++
++ /* initialize */
++ ar2313_init(dev);
++
++ /* enable interrupts */
++ enable_irq(dev->irq);
++
++ return 0;
++}
++
++static struct platform_driver ar2313_driver = {
++ .driver.name = "ar531x-eth",
++ .probe = ar2313_probe,
++ .remove = ar2313_remove,
++};
++
++int __init ar2313_module_init(void)
++{
++ return platform_driver_register(&ar2313_driver);
++}
++
++void __exit ar2313_module_cleanup(void)
++{
++ platform_driver_unregister(&ar2313_driver);
++}
++
++module_init(ar2313_module_init);
++module_exit(ar2313_module_cleanup);
++
++
++static void ar2313_free_descriptors(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ if (sp->rx_ring != NULL) {
++ kfree((void*)KSEG0ADDR(sp->rx_ring));
++ sp->rx_ring = NULL;
++ sp->tx_ring = NULL;
++ }
++}
++
++
++static int ar2313_allocate_descriptors(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ int size;
++ int j;
++ ar2313_descr_t *space;
++
++ if(sp->rx_ring != NULL){
++ printk("%s: already done.\n", __FUNCTION__);
++ return 0;
++ }
++
++ size = (sizeof(ar2313_descr_t) * (AR2313_DESCR_ENTRIES * AR2313_QUEUES));
++ space = kmalloc(size, GFP_KERNEL);
++ if (space == NULL)
++ return 1;
++
++ /* invalidate caches */
++ dma_cache_inv((unsigned int)space, size);
++
++ /* now convert pointer to KSEG1 */
++ space = (ar2313_descr_t *)KSEG1ADDR(space);
++
++ memset((void *)space, 0, size);
++
++ sp->rx_ring = space;
++ space += AR2313_DESCR_ENTRIES;
++
++ sp->tx_ring = space;
++ space += AR2313_DESCR_ENTRIES;
++
++ /* Initialize the transmit Descriptors */
++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++ ar2313_descr_t *td = &sp->tx_ring[j];
++ td->status = 0;
++ td->devcs = DMA_TX1_CHAINED;
++ td->addr = 0;
++ td->descr = K1_TO_PHYS(&sp->tx_ring[(j+1) & (AR2313_DESCR_ENTRIES-1)]);
++ }
++
++ return 0;
++}
++
++
++/*
++ * Generic cleanup handling data allocated during init. Used when the
++ * module is unloaded or if an error occurs during initialization
++ */
++static void ar2313_init_cleanup(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ struct sk_buff *skb;
++ int j;
++
++ ar2313_free_descriptors(dev);
++
++ if (sp->eth_regs) iounmap((void*)sp->eth_regs);
++ if (sp->dma_regs) iounmap((void*)sp->dma_regs);
++
++ if (sp->rx_skb) {
++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++ skb = sp->rx_skb[j];
++ if (skb) {
++ sp->rx_skb[j] = NULL;
++ dev_kfree_skb(skb);
++ }
++ }
++ kfree(sp->rx_skb);
++ sp->rx_skb = NULL;
++ }
++
++ if (sp->tx_skb) {
++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++ skb = sp->tx_skb[j];
++ if (skb) {
++ sp->tx_skb[j] = NULL;
++ dev_kfree_skb(skb);
++ }
++ }
++ kfree(sp->tx_skb);
++ sp->tx_skb = NULL;
++ }
++}
++
++static int ar2313_setup_timer(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++
++ init_timer(&sp->link_timer);
++
++ sp->link_timer.function = ar2313_link_timer_fn;
++ sp->link_timer.data = (int) dev;
++ sp->link_timer.expires = jiffies + HZ;
++
++ add_timer(&sp->link_timer);
++ return 0;
++
++}
++
++static void ar2313_link_timer_fn(unsigned long data)
++{
++ struct net_device *dev = (struct net_device *) data;
++ struct ar2313_private *sp = dev->priv;
++
++ // see if the link status changed
++ // This was needed to make sure we set the PHY to the
++ // autonegotiated value of half or full duplex.
++ ar2313_check_link(dev);
++
++ // Loop faster when we don't have link.
++ // This was needed to speed up the AP bootstrap time.
++ if(sp->link == 0) {
++ mod_timer(&sp->link_timer, jiffies + HZ/2);
++ } else {
++ mod_timer(&sp->link_timer, jiffies + LINK_TIMER);
++ }
++}
++
++static void ar2313_check_link(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ u16 phyData;
++
++ phyData = armiiread(sp->phy, MII_BMSR);
++ if (sp->phyData != phyData) {
++ if (phyData & BMSR_LSTATUS) {
++ /* link is present, ready link partner ability to deterine duplexity */
++ int duplex = 0;
++ u16 reg;
++
++ sp->link = 1;
++ reg = armiiread(sp->phy, MII_BMCR);
++ if (reg & BMCR_ANENABLE) {
++ /* auto neg enabled */
++ reg = armiiread(sp->phy, MII_LPA);
++ duplex = (reg & (LPA_100FULL|LPA_10FULL))? 1:0;
++ } else {
++ /* no auto neg, just read duplex config */
++ duplex = (reg & BMCR_FULLDPLX)? 1:0;
++ }
++
++ printk(KERN_INFO "%s: Configuring MAC for %s duplex\n", dev->name,
++ (duplex)? "full":"half");
++
++ if (duplex) {
++ /* full duplex */
++ sp->eth_regs->mac_control = ((sp->eth_regs->mac_control | MAC_CONTROL_F) &
++ ~MAC_CONTROL_DRO);
++ } else {
++ /* half duplex */
++ sp->eth_regs->mac_control = ((sp->eth_regs->mac_control | MAC_CONTROL_DRO) &
++ ~MAC_CONTROL_F);
++ }
++ } else {
++ /* no link */
++ sp->link = 0;
++ }
++ sp->phyData = phyData;
++ }
++}
++
++static int
++ar2313_reset_reg(struct net_device *dev)
++{
++ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
++ unsigned int ethsal, ethsah;
++ unsigned int flags;
++
++ *sp->int_regs |= ar_int_mac_mask;
++ mdelay(10);
++ *sp->int_regs &= ~ar_int_mac_mask;
++ mdelay(10);
++ *sp->int_regs |= ar_int_phy_mask;
++ mdelay(10);
++ *sp->int_regs &= ~ar_int_phy_mask;
++ mdelay(10);
++
++ sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR);
++ mdelay(10);
++ sp->dma_regs->bus_mode = ((32 << DMA_BUS_MODE_PBL_SHIFT) | DMA_BUS_MODE_BLE);
++
++ /* enable interrupts */
++ sp->dma_regs->intr_ena = (DMA_STATUS_AIS |
++ DMA_STATUS_NIS |
++ DMA_STATUS_RI |
++ DMA_STATUS_TI |
++ DMA_STATUS_FBE);
++ sp->dma_regs->xmt_base = K1_TO_PHYS(sp->tx_ring);
++ sp->dma_regs->rcv_base = K1_TO_PHYS(sp->rx_ring);
++ sp->dma_regs->control = (DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF);
++
++ sp->eth_regs->flow_control = (FLOW_CONTROL_FCE);
++ sp->eth_regs->vlan_tag = (0x8100);
++
++ /* Enable Ethernet Interface */
++ flags = (MAC_CONTROL_TE | /* transmit enable */
++ MAC_CONTROL_PM | /* pass mcast */
++ MAC_CONTROL_F | /* full duplex */
++ MAC_CONTROL_HBD); /* heart beat disabled */
++
++ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
++ flags |= MAC_CONTROL_PR;
++ }
++ sp->eth_regs->mac_control = flags;
++
++ /* Set all Ethernet station address registers to their initial values */
++ ethsah = ((((u_int)(dev->dev_addr[5]) << 8) & (u_int)0x0000FF00) |
++ (((u_int)(dev->dev_addr[4]) << 0) & (u_int)0x000000FF));
++
++ ethsal = ((((u_int)(dev->dev_addr[3]) << 24) & (u_int)0xFF000000) |
++ (((u_int)(dev->dev_addr[2]) << 16) & (u_int)0x00FF0000) |
++ (((u_int)(dev->dev_addr[1]) << 8) & (u_int)0x0000FF00) |
++ (((u_int)(dev->dev_addr[0]) << 0) & (u_int)0x000000FF) );
++
++ sp->eth_regs->mac_addr[0] = ethsah;
++ sp->eth_regs->mac_addr[1] = ethsal;
++
++ mdelay(10);
++
++ return(0);
++}
++
++
++static int ar2313_init(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ int ecode=0;
++
++ /*
++ * Allocate descriptors
++ */
++ if (ar2313_allocate_descriptors(dev)) {
++ printk("%s: %s: ar2313_allocate_descriptors failed\n",
++ dev->name, __FUNCTION__);
++ ecode = -EAGAIN;
++ goto init_error;
++ }
++
++ /*
++ * Get the memory for the skb rings.
++ */
++ if(sp->rx_skb == NULL) {
++ sp->rx_skb = kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, GFP_KERNEL);
++ if (!(sp->rx_skb)) {
++ printk("%s: %s: rx_skb kmalloc failed\n",
++ dev->name, __FUNCTION__);
++ ecode = -EAGAIN;
++ goto init_error;
++ }
++ }
++ memset(sp->rx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
++
++ if(sp->tx_skb == NULL) {
++ sp->tx_skb = kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, GFP_KERNEL);
++ if (!(sp->tx_skb)) {
++ printk("%s: %s: tx_skb kmalloc failed\n",
++ dev->name, __FUNCTION__);
++ ecode = -EAGAIN;
++ goto init_error;
++ }
++ }
++ memset(sp->tx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
++
++ /*
++ * Set tx_csm before we start receiving interrupts, otherwise
++ * the interrupt handler might think it is supposed to process
++ * tx ints before we are up and running, which may cause a null
++ * pointer access in the int handler.
++ */
++ sp->rx_skbprd = 0;
++ sp->cur_rx = 0;
++ sp->tx_prd = 0;
++ sp->tx_csm = 0;
++
++ /*
++ * Zero the stats before starting the interface
++ */
++ memset(&sp->stats, 0, sizeof(sp->stats));
++
++ /*
++ * We load the ring here as there seem to be no way to tell the
++ * firmware to wipe the ring without re-initializing it.
++ */
++ ar2313_load_rx_ring(dev, RX_RING_SIZE);
++
++ /*
++ * Init hardware
++ */
++ ar2313_reset_reg(dev);
++
++ /*
++ * Get the IRQ
++ */
++ ecode = request_irq(dev->irq, &ar2313_interrupt, IRQF_SHARED | IRQF_DISABLED | IRQF_SAMPLE_RANDOM, dev->name, dev);
++ if (ecode) {
++ printk(KERN_WARNING "%s: %s: Requested IRQ %d is busy\n",
++ dev->name, __FUNCTION__, dev->irq);
++ goto init_error;
++ }
++
++
++ tasklet_enable(&sp->rx_tasklet);
++
++ return 0;
++
++ init_error:
++ ar2313_init_cleanup(dev);
++ return ecode;
++}
++
++/*
++ * Load the rx ring.
++ *
++ * Loading rings is safe without holding the spin lock since this is
++ * done only before the device is enabled, thus no interrupts are
++ * generated and by the interrupt handler/tasklet handler.
++ */
++static void ar2313_load_rx_ring(struct net_device *dev, int nr_bufs)
++{
++
++ struct ar2313_private *sp = ((struct net_device *)dev)->priv;
++ short i, idx;
++
++ idx = sp->rx_skbprd;
++
++ for (i = 0; i < nr_bufs; i++) {
++ struct sk_buff *skb;
++ ar2313_descr_t *rd;
++
++ if (sp->rx_skb[idx]) {
++#if DEBUG_RX
++ printk(KERN_INFO "ar2313 rx refill full\n");
++#endif /* DEBUG */
++ break;
++ }
++
++ // partha: create additional room for the second GRE fragment
++ skb = alloc_skb(AR2313_BUFSIZE+128, GFP_ATOMIC);
++ if (!skb) {
++ printk("\n\n\n\n %s: No memory in system\n\n\n\n", __FUNCTION__);
++ break;
++ }
++ // partha: create additional room in the front for tx pkt capture
++ skb_reserve(skb, 32);
++
++ /*
++ * Make sure IP header starts on a fresh cache line.
++ */
++ skb->dev = dev;
++ skb_reserve(skb, RX_OFFSET);
++ sp->rx_skb[idx] = skb;
++
++ rd = (ar2313_descr_t *) &sp->rx_ring[idx];
++
++ /* initialize dma descriptor */
++ rd->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
++ DMA_RX1_CHAINED);
++ rd->addr = virt_to_phys(skb->data);
++ rd->descr = virt_to_phys(&sp->rx_ring[(idx+1) & (AR2313_DESCR_ENTRIES-1)]);
++ rd->status = DMA_RX_OWN;
++
++ idx = DSC_NEXT(idx);
++ }
++
++ if (!i) {
++#if DEBUG_ERR
++ printk(KERN_INFO "Out of memory when allocating standard receive buffers\n");
++#endif /* DEBUG */
++ } else {
++ sp->rx_skbprd = idx;
++ }
++
++ return;
++}
++
++#define AR2313_MAX_PKTS_PER_CALL 64
++
++static int ar2313_rx_int(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ struct sk_buff *skb, *skb_new;
++ ar2313_descr_t *rxdesc;
++ unsigned int status;
++ u32 idx;
++ int pkts = 0;
++ int rval;
++
++ idx = sp->cur_rx;
++
++ /* process at most the entire ring and then wait for another interrupt */
++ while(1) {
++
++ rxdesc = &sp->rx_ring[idx];
++ status = rxdesc->status;
++ if (status & DMA_RX_OWN) {
++ /* SiByte owns descriptor or descr not yet filled in */
++ rval = 0;
++ break;
++ }
++
++ if (++pkts > AR2313_MAX_PKTS_PER_CALL) {
++ rval = 1;
++ break;
++ }
++
++#if DEBUG_RX
++ printk("index %d\n", idx);
++ printk("RX status %08x\n", rxdesc->status);
++ printk("RX devcs %08x\n", rxdesc->devcs );
++ printk("RX addr %08x\n", rxdesc->addr );
++ printk("RX descr %08x\n", rxdesc->descr );
++#endif
++
++ if ((status & (DMA_RX_ERROR|DMA_RX_ERR_LENGTH)) &&
++ (!(status & DMA_RX_LONG))){
++#if DEBUG_RX
++ printk("%s: rx ERROR %08x\n", __FUNCTION__, status);
++#endif
++ sp->stats.rx_errors++;
++ sp->stats.rx_dropped++;
++
++ /* add statistics counters */
++ if (status & DMA_RX_ERR_CRC) sp->stats.rx_crc_errors++;
++ if (status & DMA_RX_ERR_COL) sp->stats.rx_over_errors++;
++ if (status & DMA_RX_ERR_LENGTH)
++ sp->stats.rx_length_errors++;
++ if (status & DMA_RX_ERR_RUNT) sp->stats.rx_over_errors++;
++ if (status & DMA_RX_ERR_DESC) sp->stats.rx_over_errors++;
++
++ } else {
++ /* alloc new buffer. */
++ skb_new = dev_alloc_skb(AR2313_BUFSIZE + RX_OFFSET + 128);
++ if (skb_new != NULL) {
++
++ skb = sp->rx_skb[idx];
++ /* set skb */
++ skb_put(skb, ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
++
++#ifdef CONFIG_MERLOT
++ if ((dev->am_pkt_handler == NULL) ||
++ (dev->am_pkt_handler(skb, dev) == 0)) {
++#endif
++ sp->stats.rx_bytes += skb->len;
++ skb->protocol = eth_type_trans(skb, dev);
++ /* pass the packet to upper layers */
++
++#ifdef CONFIG_MERLOT
++ if (dev->asap_netif_rx)
++ dev->asap_netif_rx(skb);
++ else
++#endif
++ netif_rx(skb);
++#ifdef CONFIG_MERLOT
++ }
++#endif
++ skb_new->dev = dev;
++ /* 16 bit align */
++ skb_reserve(skb_new, RX_OFFSET+32);
++ /* reset descriptor's curr_addr */
++ rxdesc->addr = virt_to_phys(skb_new->data);
++
++ sp->stats.rx_packets++;
++ sp->rx_skb[idx] = skb_new;
++
++ } else {
++ sp->stats.rx_dropped++;
++ }
++ }
++
++ rxdesc->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
++ DMA_RX1_CHAINED);
++ rxdesc->status = DMA_RX_OWN;
++
++ idx = DSC_NEXT(idx);
++ }
++
++ sp->cur_rx = idx;
++
++ return rval;
++}
++
++
++static void ar2313_tx_int(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ u32 idx;
++ struct sk_buff *skb;
++ ar2313_descr_t *txdesc;
++ unsigned int status=0;
++
++ idx = sp->tx_csm;
++
++ while (idx != sp->tx_prd) {
++
++ txdesc = &sp->tx_ring[idx];
++
++#if DEBUG_TX
++ printk("%s: TXINT: csm=%d idx=%d prd=%d status=%x devcs=%x addr=%08x descr=%x\n",
++ dev->name, sp->tx_csm, idx, sp->tx_prd,
++ txdesc->status, txdesc->devcs, txdesc->addr, txdesc->descr);
++#endif /* DEBUG */
++
++ if ((status = txdesc->status) & DMA_TX_OWN) {
++ /* ar2313 dma still owns descr */
++ break;
++ }
++ /* done with this descriptor */
++ dma_unmap_single(NULL, txdesc->addr, txdesc->devcs & DMA_TX1_BSIZE_MASK, DMA_TO_DEVICE);
++ txdesc->status = 0;
++
++ if (status & DMA_TX_ERROR){
++ sp->stats.tx_errors++;
++ sp->stats.tx_dropped++;
++ if(status & DMA_TX_ERR_UNDER)
++ sp->stats.tx_fifo_errors++;
++ if(status & DMA_TX_ERR_HB)
++ sp->stats.tx_heartbeat_errors++;
++ if(status & (DMA_TX_ERR_LOSS |
++ DMA_TX_ERR_LINK))
++ sp->stats.tx_carrier_errors++;
++ if (status & (DMA_TX_ERR_LATE|
++ DMA_TX_ERR_COL |
++ DMA_TX_ERR_JABBER |
++ DMA_TX_ERR_DEFER))
++ sp->stats.tx_aborted_errors++;
++ } else {
++ /* transmit OK */
++ sp->stats.tx_packets++;
++ }
++
++ skb = sp->tx_skb[idx];
++ sp->tx_skb[idx] = NULL;
++ idx = DSC_NEXT(idx);
++ sp->stats.tx_bytes += skb->len;
++ dev_kfree_skb_irq(skb);
++ }
++
++ sp->tx_csm = idx;
++
++ return;
++}
++
++
++static void
++rx_tasklet_func(unsigned long data)
++{
++ struct net_device *dev = (struct net_device *) data;
++ struct ar2313_private *sp = dev->priv;
++
++ if (sp->unloading) {
++ return;
++ }
++
++ if (ar2313_rx_int(dev)) {
++ tasklet_hi_schedule(&sp->rx_tasklet);
++ }
++ else {
++ unsigned long flags;
++ spin_lock_irqsave(&sp->lock, flags);
++ sp->dma_regs->intr_ena |= DMA_STATUS_RI;
++ spin_unlock_irqrestore(&sp->lock, flags);
++ }
++}
++
++static void
++rx_schedule(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++
++ sp->dma_regs->intr_ena &= ~DMA_STATUS_RI;
++
++ tasklet_hi_schedule(&sp->rx_tasklet);
++}
++
++static irqreturn_t ar2313_interrupt(int irq, void *dev_id)
++{
++ struct net_device *dev = (struct net_device *)dev_id;
++ struct ar2313_private *sp = dev->priv;
++ unsigned int status, enabled;
++
++ /* clear interrupt */
++ /*
++ * Don't clear RI bit if currently disabled.
++ */
++ status = sp->dma_regs->status;
++ enabled = sp->dma_regs->intr_ena;
++ sp->dma_regs->status = status & enabled;
++
++ if (status & DMA_STATUS_NIS) {
++ /* normal status */
++ /*
++ * Don't schedule rx processing if interrupt
++ * is already disabled.
++ */
++ if (status & enabled & DMA_STATUS_RI) {
++ /* receive interrupt */
++ rx_schedule(dev);
++ }
++ if (status & DMA_STATUS_TI) {
++ /* transmit interrupt */
++ ar2313_tx_int(dev);
++ }
++ }
++
++ if (status & DMA_STATUS_AIS) {
++#if DEBUG_INT
++ printk("%s: AIS set %08x & %x\n", __FUNCTION__,
++ status, (DMA_STATUS_FBE | DMA_STATUS_TPS));
++#endif
++ /* abnormal status */
++ if (status & (DMA_STATUS_FBE | DMA_STATUS_TPS)) {
++ ar2313_restart(dev);
++ }
++ }
++ return IRQ_HANDLED;
++}
++
++
++static int ar2313_open(struct net_device *dev)
++{
++ struct ar2313_private *sp;
++
++ sp = dev->priv;
++
++ dev->mtu = 1500;
++ netif_start_queue(dev);
++
++ sp->eth_regs->mac_control |= MAC_CONTROL_RE;
++
++ AR2313_MOD_INC_USE_COUNT;
++
++ return 0;
++}
++
++static void ar2313_halt(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ int j;
++
++ tasklet_disable(&sp->rx_tasklet);
++
++ /* kill the MAC */
++ sp->eth_regs->mac_control &= ~(MAC_CONTROL_RE | /* disable Receives */
++ MAC_CONTROL_TE); /* disable Transmits */
++ /* stop dma */
++ sp->dma_regs->control = 0;
++ sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR;
++
++ /* place phy and MAC in reset */
++ *sp->int_regs |= (ar_int_mac_mask | ar_int_phy_mask);
++
++ /* free buffers on tx ring */
++ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
++ struct sk_buff *skb;
++ ar2313_descr_t *txdesc;
++
++ txdesc = &sp->tx_ring[j];
++ txdesc->descr = 0;
++
++ skb = sp->tx_skb[j];
++ if (skb) {
++ dev_kfree_skb(skb);
++ sp->tx_skb[j] = NULL;
++ }
++ }
++}
++
++/*
++ * close should do nothing. Here's why. It's called when
++ * 'ifconfig bond0 down' is run. If it calls free_irq then
++ * the irq is gone forever ! When bond0 is made 'up' again,
++ * the ar2313_open () does not call request_irq (). Worse,
++ * the call to ar2313_halt() generates a WDOG reset due to
++ * the write to 'sp->int_regs' and the box reboots.
++ * Commenting this out is good since it allows the
++ * system to resume when bond0 is made up again.
++ */
++static int ar2313_close(struct net_device *dev)
++{
++#if 0
++ /*
++ * Disable interrupts
++ */
++ disable_irq(dev->irq);
++
++ /*
++ * Without (or before) releasing irq and stopping hardware, this
++ * is an absolute non-sense, by the way. It will be reset instantly
++ * by the first irq.
++ */
++ netif_stop_queue(dev);
++
++ /* stop the MAC and DMA engines */
++ ar2313_halt(dev);
++
++ /* release the interrupt */
++ free_irq(dev->irq, dev);
++
++#endif
++ AR2313_MOD_DEC_USE_COUNT;
++ return 0;
++}
++
++static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ ar2313_descr_t *td;
++ u32 idx;
++
++ idx = sp->tx_prd;
++ td = &sp->tx_ring[idx];
++
++ if (td->status & DMA_TX_OWN) {
++#if DEBUG_TX
++ printk("%s: No space left to Tx\n", __FUNCTION__);
++#endif
++ /* free skbuf and lie to the caller that we sent it out */
++ sp->stats.tx_dropped++;
++ dev_kfree_skb(skb);
++
++ /* restart transmitter in case locked */
++ sp->dma_regs->xmt_poll = 0;
++ return 0;
++ }
++
++ /* Setup the transmit descriptor. */
++ td->devcs = ((skb->len << DMA_TX1_BSIZE_SHIFT) |
++ (DMA_TX1_LS|DMA_TX1_IC|DMA_TX1_CHAINED));
++ td->addr = dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE);
++ td->status = DMA_TX_OWN;
++
++ /* kick transmitter last */
++ sp->dma_regs->xmt_poll = 0;
++
++#if DEBUG_TX
++ printk("index %d\n", idx);
++ printk("TX status %08x\n", td->status);
++ printk("TX devcs %08x\n", td->devcs );
++ printk("TX addr %08x\n", td->addr );
++ printk("TX descr %08x\n", td->descr );
++#endif
++
++ sp->tx_skb[idx] = skb;
++ idx = DSC_NEXT(idx);
++ sp->tx_prd = idx;
++
++ //dev->trans_start = jiffies;
++
++ return 0;
++}
++
++static int netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
++{
++ struct ar2313_private *np = dev->priv;
++ u32 tmp;
++
++ ecmd->supported =
++ (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
++ SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
++ SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
++
++ ecmd->port = PORT_TP;
++ /* only supports internal transceiver */
++ ecmd->transceiver = XCVR_INTERNAL;
++ /* not sure what this is for */
++ ecmd->phy_address = 1;
++
++ ecmd->advertising = ADVERTISED_MII;
++ tmp = armiiread(np->phy, MII_ADVERTISE);
++ if (tmp & ADVERTISE_10HALF)
++ ecmd->advertising |= ADVERTISED_10baseT_Half;
++ if (tmp & ADVERTISE_10FULL)
++ ecmd->advertising |= ADVERTISED_10baseT_Full;
++ if (tmp & ADVERTISE_100HALF)
++ ecmd->advertising |= ADVERTISED_100baseT_Half;
++ if (tmp & ADVERTISE_100FULL)
++ ecmd->advertising |= ADVERTISED_100baseT_Full;
++
++ tmp = armiiread(np->phy, MII_BMCR);
++ if (tmp & BMCR_ANENABLE) {
++ ecmd->advertising |= ADVERTISED_Autoneg;
++ ecmd->autoneg = AUTONEG_ENABLE;
++ } else {
++ ecmd->autoneg = AUTONEG_DISABLE;
++ }
++
++ if (ecmd->autoneg == AUTONEG_ENABLE) {
++ tmp = armiiread(np->phy, MII_LPA);
++ if (tmp & (LPA_100FULL|LPA_10FULL)) {
++ ecmd->duplex = DUPLEX_FULL;
++ } else {
++ ecmd->duplex = DUPLEX_HALF;
++ }
++ if (tmp & (LPA_100FULL|LPA_100HALF)) {
++ ecmd->speed = SPEED_100;
++ } else {
++ ecmd->speed = SPEED_10;
++ }
++ } else {
++ if (tmp & BMCR_FULLDPLX) {
++ ecmd->duplex = DUPLEX_FULL;
++ } else {
++ ecmd->duplex = DUPLEX_HALF;
++ }
++ if (tmp & BMCR_SPEED100) {
++ ecmd->speed = SPEED_100;
++ } else {
++ ecmd->speed = SPEED_10;
++ }
++ }
++
++ /* ignore maxtxpkt, maxrxpkt for now */
++
++ return 0;
++}
++
++static int netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
++{
++ struct ar2313_private *np = dev->priv;
++ u32 tmp;
++
++ if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
++ return -EINVAL;
++ if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
++ return -EINVAL;
++ if (ecmd->port != PORT_TP)
++ return -EINVAL;
++ if (ecmd->transceiver != XCVR_INTERNAL)
++ return -EINVAL;
++ if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
++ return -EINVAL;
++ /* ignore phy_address, maxtxpkt, maxrxpkt for now */
++
++ /* WHEW! now lets bang some bits */
++
++ tmp = armiiread(np->phy, MII_BMCR);
++ if (ecmd->autoneg == AUTONEG_ENABLE) {
++ /* turn on autonegotiation */
++ tmp |= BMCR_ANENABLE;
++ printk("%s: Enabling auto-neg\n", dev->name);
++ } else {
++ /* turn off auto negotiation, set speed and duplexity */
++ tmp &= ~(BMCR_ANENABLE | BMCR_SPEED100 | BMCR_FULLDPLX);
++ if (ecmd->speed == SPEED_100)
++ tmp |= BMCR_SPEED100;
++ if (ecmd->duplex == DUPLEX_FULL)
++ tmp |= BMCR_FULLDPLX;
++ printk("%s: Hard coding %d/%s\n", dev->name,
++ (ecmd->speed == SPEED_100)? 100:10,
++ (ecmd->duplex == DUPLEX_FULL)? "full":"half");
++ }
++ armiiwrite(np->phy, MII_BMCR, tmp);
++ np->phyData = 0;
++ return 0;
++}
++
++static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
++{
++ struct ar2313_private *np = dev->priv;
++ u32 cmd;
++
++ if (get_user(cmd, (u32 *)useraddr))
++ return -EFAULT;
++
++ switch (cmd) {
++ /* get settings */
++ case ETHTOOL_GSET: {
++ struct ethtool_cmd ecmd = { ETHTOOL_GSET };
++ spin_lock_irq(&np->lock);
++ netdev_get_ecmd(dev, &ecmd);
++ spin_unlock_irq(&np->lock);
++ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
++ return -EFAULT;
++ return 0;
++ }
++ /* set settings */
++ case ETHTOOL_SSET: {
++ struct ethtool_cmd ecmd;
++ int r;
++ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
++ return -EFAULT;
++ spin_lock_irq(&np->lock);
++ r = netdev_set_ecmd(dev, &ecmd);
++ spin_unlock_irq(&np->lock);
++ return r;
++ }
++ /* restart autonegotiation */
++ case ETHTOOL_NWAY_RST: {
++ int tmp;
++ int r = -EINVAL;
++ /* if autoneg is off, it's an error */
++ tmp = armiiread(np->phy, MII_BMCR);
++ if (tmp & BMCR_ANENABLE) {
++ tmp |= (BMCR_ANRESTART);
++ armiiwrite(np->phy, MII_BMCR, tmp);
++ r = 0;
++ }
++ return r;
++ }
++ /* get link status */
++ case ETHTOOL_GLINK: {
++ struct ethtool_value edata = {ETHTOOL_GLINK};
++ edata.data = (armiiread(np->phy, MII_BMSR)&BMSR_LSTATUS) ? 1:0;
++ if (copy_to_user(useraddr, &edata, sizeof(edata)))
++ return -EFAULT;
++ return 0;
++ }
++ }
++
++ return -EOPNOTSUPP;
++}
++
++static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
++{
++ struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data;
++
++ switch (cmd) {
++ case SIOCDEVPRIVATE: {
++ struct ar2313_cmd scmd;
++
++ if (copy_from_user(&scmd, ifr->ifr_data, sizeof(scmd)))
++ return -EFAULT;
++
++#if DEBUG
++ printk("%s: ioctl devprivate c=%d a=%x l=%d m=%d d=%x,%x\n",
++ dev->name, scmd.cmd,
++ scmd.address, scmd.length,
++ scmd.mailbox, scmd.data[0], scmd.data[1]);
++#endif /* DEBUG */
++
++ switch (scmd.cmd) {
++ case AR2313_READ_DATA:
++ if(scmd.length==4){
++ scmd.data[0] = *((u32*)scmd.address);
++ } else if(scmd.length==2) {
++ scmd.data[0] = *((u16*)scmd.address);
++ } else if (scmd.length==1) {
++ scmd.data[0] = *((u8*)scmd.address);
++ } else {
++ return -EOPNOTSUPP;
++ }
++ if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
++ return -EFAULT;
++ break;
++
++ case AR2313_WRITE_DATA:
++ if(scmd.length==4){
++ *((u32*)scmd.address) = scmd.data[0];
++ } else if(scmd.length==2) {
++ *((u16*)scmd.address) = scmd.data[0];
++ } else if (scmd.length==1) {
++ *((u8*)scmd.address) = scmd.data[0];
++ } else {
++ return -EOPNOTSUPP;
++ }
++ break;
++
++ case AR2313_GET_VERSION:
++ // SAMEER: sprintf((char*) &scmd, "%s", ARUBA_VERSION);
++ if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
++ return -EFAULT;
++ break;
++
++ default:
++ return -EOPNOTSUPP;
++ }
++ return 0;
++ }
++
++ case SIOCETHTOOL:
++ return netdev_ethtool_ioctl(dev, (void *) ifr->ifr_data);
++
++ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
++ data->phy_id = 1;
++ /* Fall Through */
++
++ case SIOCGMIIREG: /* Read MII PHY register. */
++ case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
++ data->val_out = armiiread(data->phy_id & 0x1f,
++ data->reg_num & 0x1f);
++ return 0;
++ case SIOCSMIIREG: /* Write MII PHY register. */
++ case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
++ if (!capable(CAP_NET_ADMIN))
++ return -EPERM;
++ armiiwrite(data->phy_id & 0x1f,
++ data->reg_num & 0x1f, data->val_in);
++ return 0;
++
++ case SIOCSIFHWADDR:
++ if (copy_from_user(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
++ return -EFAULT;
++ return 0;
++
++ case SIOCGIFHWADDR:
++ if (copy_to_user(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
++ return -EFAULT;
++ return 0;
++
++ default:
++ break;
++ }
++
++ return -EOPNOTSUPP;
++}
++
++static struct net_device_stats *ar2313_get_stats(struct net_device *dev)
++{
++ struct ar2313_private *sp = dev->priv;
++ return &sp->stats;
++}
++
++static short
++armiiread(short phy, short reg)
++{
++ volatile ETHERNET_STRUCT * ethernet;
++
++ ethernet = (volatile ETHERNET_STRUCT *)(ar_eth_base); /* always MAC 0 */
++ ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
++ (phy << MII_ADDR_PHY_SHIFT));
++ while (ethernet->mii_addr & MII_ADDR_BUSY);
++ return (ethernet->mii_data >> MII_DATA_SHIFT);
++}
++
++static void
++armiiwrite(short phy, short reg, short data)
++{
++ volatile ETHERNET_STRUCT * ethernet;
++
++ ethernet = (volatile ETHERNET_STRUCT *)(ar_eth_base); /* always MAC 0 */
++ while (ethernet->mii_addr & MII_ADDR_BUSY);
++ ethernet->mii_data = data << MII_DATA_SHIFT;
++ ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
++ (phy << MII_ADDR_PHY_SHIFT) |
++ MII_ADDR_WRITE);
++}
++
+diff -urN linux.old/drivers/net/ar2313/ar2313.h linux.eth/drivers/net/ar2313/ar2313.h
+--- linux.old/drivers/net/ar2313/ar2313.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/ar2313.h 2006-12-16 04:30:11.000000000 +0100
+@@ -0,0 +1,191 @@
++#ifndef _AR2313_H_
++#define _AR2313_H_
++
++#include <linux/autoconf.h>
++#include <asm/bootinfo.h>
++#include "platform.h"
++
++extern unsigned long mips_machtype;
++
++#undef ETHERNET_BASE
++#define ETHERNET_BASE ar_eth_base
++#define ETHERNET_SIZE 0x00100000
++#define ETHERNET_MACS 2
++
++#undef DMA_BASE
++#define DMA_BASE ar_dma_base
++#define DMA_SIZE 0x00100000
++
++
++/*
++ * probe link timer - 5 secs
++ */
++#define LINK_TIMER (5*HZ)
++
++/*
++ * Interrupt register base address
++ */
++#define INTERRUPT_BASE PHYS_TO_K1(ar_int_base)
++
++/*
++ * Reset Register
++ */
++#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
++#define RESET_SYSTEM 0x00000001 /* cold reset full system */
++#define RESET_PROC 0x00000002 /* cold reset MIPS core */
++#define RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
++#define RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
++#define RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
++#define RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
++#define RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
++
++#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0)
++#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0)
++#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0)
++
++#ifndef K1_TO_PHYS
++// hack
++#define K1_TO_PHYS(x) (((unsigned int)(x)) & 0x1FFFFFFF) /* kseg1 to physical */
++#endif
++
++#ifndef PHYS_TO_K1
++// hack
++#define PHYS_TO_K1(x) (((unsigned int)(x)) | 0xA0000000) /* physical to kseg1 */
++#endif
++
++#define AR2313_TX_TIMEOUT (HZ/4)
++
++/*
++ * Rings
++ */
++#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc))
++#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
++
++static inline int tx_space (u32 csm, u32 prd)
++{
++ return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
++}
++
++#if MAX_SKB_FRAGS
++#define TX_RESERVED (MAX_SKB_FRAGS+1) /* +1 for message header */
++#define tx_ring_full(csm, prd) (tx_space(csm, prd) <= TX_RESERVED)
++#else
++#define tx_ring_full 0
++#endif
++
++#define AR2313_MBGET 2
++#define AR2313_MBSET 3
++#define AR2313_PCI_RECONFIG 4
++#define AR2313_PCI_DUMP 5
++#define AR2313_TEST_PANIC 6
++#define AR2313_TEST_NULLPTR 7
++#define AR2313_READ_DATA 8
++#define AR2313_WRITE_DATA 9
++#define AR2313_GET_VERSION 10
++#define AR2313_TEST_HANG 11
++#define AR2313_SYNC 12
++
++
++struct ar2313_cmd {
++ u32 cmd;
++ u32 address; /* virtual address of image */
++ u32 length; /* size of image to download */
++ u32 mailbox; /* mailbox to get/set */
++ u32 data[2]; /* contents of mailbox to read/write */
++};
++
++
++/*
++ * Struct private for the Sibyte.
++ *
++ * Elements are grouped so variables used by the tx handling goes
++ * together, and will go into the same cache lines etc. in order to
++ * avoid cache line contention between the rx and tx handling on SMP.
++ *
++ * Frequently accessed variables are put at the beginning of the
++ * struct to help the compiler generate better/shorter code.
++ */
++struct ar2313_private
++{
++ struct net_device *dev;
++ int version;
++ u32 mb[2];
++
++ volatile ETHERNET_STRUCT *eth_regs;
++ volatile DMA *dma_regs;
++ volatile u32 *int_regs;
++
++ spinlock_t lock; /* Serialise access to device */
++
++ /*
++ * RX and TX descriptors, must be adjacent
++ */
++ ar2313_descr_t *rx_ring;
++ ar2313_descr_t *tx_ring;
++
++
++ struct sk_buff **rx_skb;
++ struct sk_buff **tx_skb;
++
++ /*
++ * RX elements
++ */
++ u32 rx_skbprd;
++ u32 cur_rx;
++
++ /*
++ * TX elements
++ */
++ u32 tx_prd;
++ u32 tx_csm;
++
++ /*
++ * Misc elements
++ */
++ int board_idx;
++ char name[48];
++ struct net_device_stats stats;
++ struct {
++ u32 address;
++ u32 length;
++ char *mapping;
++ } desc;
++
++
++ struct timer_list link_timer;
++ unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */
++ unsigned short mac;
++ unsigned short link; /* 0 - link down, 1 - link up */
++ u16 phyData;
++
++ struct tasklet_struct rx_tasklet;
++ int unloading;
++};
++
++
++/*
++ * Prototypes
++ */
++static int ar2313_init(struct net_device *dev);
++#ifdef TX_TIMEOUT
++static void ar2313_tx_timeout(struct net_device *dev);
++#endif
++#if 0
++static void ar2313_multicast_list(struct net_device *dev);
++#endif
++static int ar2313_restart(struct net_device *dev);
++#if DEBUG
++static void ar2313_dump_regs(struct net_device *dev);
++#endif
++static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
++static irqreturn_t ar2313_interrupt(int irq, void *dev_id);
++static int ar2313_open(struct net_device *dev);
++static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
++static int ar2313_close(struct net_device *dev);
++static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
++static void ar2313_init_cleanup(struct net_device *dev);
++static int ar2313_setup_timer(struct net_device *dev);
++static void ar2313_link_timer_fn(unsigned long data);
++static void ar2313_check_link(struct net_device *dev);
++static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
++#endif /* _AR2313_H_ */
+diff -urN linux.old/drivers/net/ar2313/ar2313_msg.h linux.eth/drivers/net/ar2313/ar2313_msg.h
+--- linux.old/drivers/net/ar2313/ar2313_msg.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/ar2313_msg.h 2006-12-16 04:30:11.000000000 +0100
+@@ -0,0 +1,17 @@
++#ifndef _AR2313_MSG_H_
++#define _AR2313_MSG_H_
++
++#define AR2313_MTU 1692
++#define AR2313_PRIOS 1
++#define AR2313_QUEUES (2*AR2313_PRIOS)
++
++#define AR2313_DESCR_ENTRIES 64
++
++typedef struct {
++ volatile unsigned int status; // OWN, Device control and status.
++ volatile unsigned int devcs; // pkt Control bits + Length
++ volatile unsigned int addr; // Current Address.
++ volatile unsigned int descr; // Next descriptor in chain.
++} ar2313_descr_t;
++
++#endif /* _AR2313_MSG_H_ */
+diff -urN linux.old/drivers/net/ar2313/dma.h linux.eth/drivers/net/ar2313/dma.h
+--- linux.old/drivers/net/ar2313/dma.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/dma.h 2006-12-16 04:30:11.000000000 +0100
+@@ -0,0 +1,135 @@
++#ifndef __ARUBA_DMA_H__
++#define __ARUBA_DMA_H__
++
++/*******************************************************************************
++ *
++ * Copyright 2002 Integrated Device Technology, Inc.
++ * All rights reserved.
++ *
++ * DMA register definition.
++ *
++ * File : $Id: dma.h,v 1.3 2002/06/06 18:34:03 astichte Exp $
++ *
++ * Author : ryan.holmQVist@idt.com
++ * Date : 20011005
++ * Update :
++ * $Log: dma.h,v $
++ * Revision 1.3 2002/06/06 18:34:03 astichte
++ * Added XXX_PhysicalAddress and XXX_VirtualAddress
++ *
++ * Revision 1.2 2002/06/05 18:30:46 astichte
++ * Removed IDTField
++ *
++ * Revision 1.1 2002/05/29 17:33:21 sysarch
++ * jba File moved from vcode/include/idt/acacia
++ *
++ *
++ ******************************************************************************/
++
++#define AR_BIT(x) (1 << (x))
++#define DMA_RX_ERR_CRC AR_BIT(1)
++#define DMA_RX_ERR_DRIB AR_BIT(2)
++#define DMA_RX_ERR_MII AR_BIT(3)
++#define DMA_RX_EV2 AR_BIT(5)
++#define DMA_RX_ERR_COL AR_BIT(6)
++#define DMA_RX_LONG AR_BIT(7)
++#define DMA_RX_LS AR_BIT(8) /* last descriptor */
++#define DMA_RX_FS AR_BIT(9) /* first descriptor */
++#define DMA_RX_MF AR_BIT(10) /* multicast frame */
++#define DMA_RX_ERR_RUNT AR_BIT(11) /* runt frame */
++#define DMA_RX_ERR_LENGTH AR_BIT(12) /* length error */
++#define DMA_RX_ERR_DESC AR_BIT(14) /* descriptor error */
++#define DMA_RX_ERROR AR_BIT(15) /* error summary */
++#define DMA_RX_LEN_MASK 0x3fff0000
++#define DMA_RX_LEN_SHIFT 16
++#define DMA_RX_FILT AR_BIT(30)
++#define DMA_RX_OWN AR_BIT(31) /* desc owned by DMA controller */
++
++#define DMA_RX1_BSIZE_MASK 0x000007ff
++#define DMA_RX1_BSIZE_SHIFT 0
++#define DMA_RX1_CHAINED AR_BIT(24)
++#define DMA_RX1_RER AR_BIT(25)
++
++#define DMA_TX_ERR_UNDER AR_BIT(1) /* underflow error */
++#define DMA_TX_ERR_DEFER AR_BIT(2) /* excessive deferral */
++#define DMA_TX_COL_MASK 0x78
++#define DMA_TX_COL_SHIFT 3
++#define DMA_TX_ERR_HB AR_BIT(7) /* hearbeat failure */
++#define DMA_TX_ERR_COL AR_BIT(8) /* excessive collisions */
++#define DMA_TX_ERR_LATE AR_BIT(9) /* late collision */
++#define DMA_TX_ERR_LINK AR_BIT(10) /* no carrier */
++#define DMA_TX_ERR_LOSS AR_BIT(11) /* loss of carrier */
++#define DMA_TX_ERR_JABBER AR_BIT(14) /* transmit jabber timeout */
++#define DMA_TX_ERROR AR_BIT(15) /* frame aborted */
++#define DMA_TX_OWN AR_BIT(31) /* descr owned by DMA controller */
++
++#define DMA_TX1_BSIZE_MASK 0x000007ff
++#define DMA_TX1_BSIZE_SHIFT 0
++#define DMA_TX1_CHAINED AR_BIT(24) /* chained descriptors */
++#define DMA_TX1_TER AR_BIT(25) /* transmit end of ring */
++#define DMA_TX1_FS AR_BIT(29) /* first segment */
++#define DMA_TX1_LS AR_BIT(30) /* last segment */
++#define DMA_TX1_IC AR_BIT(31) /* interrupt on completion */
++
++#define RCVPKT_LENGTH(X) (X >> 16) /* Received pkt Length */
++
++#define MAC_CONTROL_RE AR_BIT(2) /* receive enable */
++#define MAC_CONTROL_TE AR_BIT(3) /* transmit enable */
++#define MAC_CONTROL_DC AR_BIT(5) /* Deferral check*/
++#define MAC_CONTROL_ASTP AR_BIT(8) /* Auto pad strip */
++#define MAC_CONTROL_DRTY AR_BIT(10) /* Disable retry */
++#define MAC_CONTROL_DBF AR_BIT(11) /* Disable bcast frames */
++#define MAC_CONTROL_LCC AR_BIT(12) /* late collision ctrl */
++#define MAC_CONTROL_HP AR_BIT(13) /* Hash Perfect filtering */
++#define MAC_CONTROL_HASH AR_BIT(14) /* Unicast hash filtering */
++#define MAC_CONTROL_HO AR_BIT(15) /* Hash only filtering */
++#define MAC_CONTROL_PB AR_BIT(16) /* Pass Bad frames */
++#define MAC_CONTROL_IF AR_BIT(17) /* Inverse filtering */
++#define MAC_CONTROL_PR AR_BIT(18) /* promiscuous mode (valid frames only) */
++#define MAC_CONTROL_PM AR_BIT(19) /* pass multicast */
++#define MAC_CONTROL_F AR_BIT(20) /* full-duplex */
++#define MAC_CONTROL_DRO AR_BIT(23) /* Disable Receive Own */
++#define MAC_CONTROL_HBD AR_BIT(28) /* heart-beat disabled (MUST BE SET) */
++#define MAC_CONTROL_BLE AR_BIT(30) /* big endian mode */
++#define MAC_CONTROL_RA AR_BIT(31) /* receive all (valid and invalid frames) */
++
++#define MII_ADDR_BUSY AR_BIT(0)
++#define MII_ADDR_WRITE AR_BIT(1)
++#define MII_ADDR_REG_SHIFT 6
++#define MII_ADDR_PHY_SHIFT 11
++#define MII_DATA_SHIFT 0
++
++#define FLOW_CONTROL_FCE AR_BIT(1)
++
++#define DMA_BUS_MODE_SWR AR_BIT(0) /* software reset */
++#define DMA_BUS_MODE_BLE AR_BIT(7) /* big endian mode */
++#define DMA_BUS_MODE_PBL_SHIFT 8 /* programmable burst length 32 */
++#define DMA_BUS_MODE_DBO AR_BIT(20) /* big-endian descriptors */
++
++#define DMA_STATUS_TI AR_BIT(0) /* transmit interrupt */
++#define DMA_STATUS_TPS AR_BIT(1) /* transmit process stopped */
++#define DMA_STATUS_TU AR_BIT(2) /* transmit buffer unavailable */
++#define DMA_STATUS_TJT AR_BIT(3) /* transmit buffer timeout */
++#define DMA_STATUS_UNF AR_BIT(5) /* transmit underflow */
++#define DMA_STATUS_RI AR_BIT(6) /* receive interrupt */
++#define DMA_STATUS_RU AR_BIT(7) /* receive buffer unavailable */
++#define DMA_STATUS_RPS AR_BIT(8) /* receive process stopped */
++#define DMA_STATUS_ETI AR_BIT(10) /* early transmit interrupt */
++#define DMA_STATUS_FBE AR_BIT(13) /* fatal bus interrupt */
++#define DMA_STATUS_ERI AR_BIT(14) /* early receive interrupt */
++#define DMA_STATUS_AIS AR_BIT(15) /* abnormal interrupt summary */
++#define DMA_STATUS_NIS AR_BIT(16) /* normal interrupt summary */
++#define DMA_STATUS_RS_SHIFT 17 /* receive process state */
++#define DMA_STATUS_TS_SHIFT 20 /* transmit process state */
++#define DMA_STATUS_EB_SHIFT 23 /* error bits */
++
++#define DMA_CONTROL_SR AR_BIT(1) /* start receive */
++#define DMA_CONTROL_ST AR_BIT(13) /* start transmit */
++#define DMA_CONTROL_SF AR_BIT(21) /* store and forward */
++
++#endif // __ARUBA_DMA_H__
++
++
++
++
++
+diff -urN linux.old/drivers/net/ar2313/Makefile linux.eth/drivers/net/ar2313/Makefile
+--- linux.old/drivers/net/ar2313/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/Makefile 2006-12-16 04:30:11.000000000 +0100
+@@ -0,0 +1,5 @@
++#
++# Makefile for the AR2313 ethernet driver
++#
++
++obj-$(CONFIG_AR2313) += ar2313.o
+diff -urN linux.old/drivers/net/ar2313/platform.h linux.eth/drivers/net/ar2313/platform.h
+--- linux.old/drivers/net/ar2313/platform.h 1970-01-01 01:00:00.000000000 +0100
++++ linux.eth/drivers/net/ar2313/platform.h 2006-12-16 04:30:11.000000000 +0100
+@@ -0,0 +1,128 @@
++/********************************************************************************
++ Title: $Source: platform.h,v $
++
++ Author: Dan Steinberg
++ Copyright Integrated Device Technology 2001
++
++ Purpose: AR2313 Register/Bit Definitions
++
++ Update:
++ $Log: platform.h,v $
++
++ Notes: See Merlot architecture spec for complete details. Note, all
++ addresses are virtual addresses in kseg1 (Uncached, Unmapped).
++
++********************************************************************************/
++
++#ifndef PLATFORM_H
++#define PLATFORM_H
++
++#define BIT(x) (1 << (x))
++
++#define RESET_BASE 0xBC003020
++#define RESET_VALUE 0x00000001
++
++/********************************************************************
++ * Device controller
++ ********************************************************************/
++typedef struct {
++ volatile unsigned int flash0;
++} DEVICE;
++
++#define device (*((volatile DEVICE *) DEV_CTL_BASE))
++
++// DDRC register
++#define DEV_WP (1<<26)
++
++/********************************************************************
++ * DDR controller
++ ********************************************************************/
++typedef struct {
++ volatile unsigned int ddrc0;
++ volatile unsigned int ddrc1;
++ volatile unsigned int ddrrefresh;
++} DDR;
++
++#define ddr (*((volatile DDR *) DDR_BASE))
++
++// DDRC register
++#define DDRC_CS(i) ((i&0x3)<<0)
++#define DDRC_WE (1<<2)
++
++/********************************************************************
++ * Ethernet interfaces
++ ********************************************************************/
++#define ETHERNET_BASE 0xB8200000
++
++//
++// New Combo structure for Both Eth0 AND eth1
++//
++typedef struct {
++ volatile unsigned int mac_control; /* 0x00 */
++ volatile unsigned int mac_addr[2]; /* 0x04 - 0x08*/
++ volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */
++ volatile unsigned int mii_addr; /* 0x14 */
++ volatile unsigned int mii_data; /* 0x18 */
++ volatile unsigned int flow_control; /* 0x1c */
++ volatile unsigned int vlan_tag; /* 0x20 */
++ volatile unsigned int pad[7]; /* 0x24 - 0x3c */
++ volatile unsigned int ucast_table[8]; /* 0x40-0x5c */
++
++} ETHERNET_STRUCT;
++
++/********************************************************************
++ * Interrupt controller
++ ********************************************************************/
++
++typedef struct {
++ volatile unsigned int wdog_control; /* 0x08 */
++ volatile unsigned int wdog_timer; /* 0x0c */
++ volatile unsigned int misc_status; /* 0x10 */
++ volatile unsigned int misc_mask; /* 0x14 */
++ volatile unsigned int global_status; /* 0x18 */
++ volatile unsigned int reserved; /* 0x1c */
++ volatile unsigned int reset_control; /* 0x20 */
++} INTERRUPT;
++
++#define interrupt (*((volatile INTERRUPT *) INTERRUPT_BASE))
++
++#define INTERRUPT_MISC_TIMER BIT(0)
++#define INTERRUPT_MISC_AHBPROC BIT(1)
++#define INTERRUPT_MISC_AHBDMA BIT(2)
++#define INTERRUPT_MISC_GPIO BIT(3)
++#define INTERRUPT_MISC_UART BIT(4)
++#define INTERRUPT_MISC_UARTDMA BIT(5)
++#define INTERRUPT_MISC_WATCHDOG BIT(6)
++#define INTERRUPT_MISC_LOCAL BIT(7)
++
++#define INTERRUPT_GLOBAL_ETH BIT(2)
++#define INTERRUPT_GLOBAL_WLAN BIT(3)
++#define INTERRUPT_GLOBAL_MISC BIT(4)
++#define INTERRUPT_GLOBAL_ITIMER BIT(5)
++
++/********************************************************************
++ * DMA controller
++ ********************************************************************/
++#define DMA_BASE 0xB8201000
++
++typedef struct {
++ volatile unsigned int bus_mode; /* 0x00 (CSR0) */
++ volatile unsigned int xmt_poll; /* 0x04 (CSR1) */
++ volatile unsigned int rcv_poll; /* 0x08 (CSR2) */
++ volatile unsigned int rcv_base; /* 0x0c (CSR3) */
++ volatile unsigned int xmt_base; /* 0x10 (CSR4) */
++ volatile unsigned int status; /* 0x14 (CSR5) */
++ volatile unsigned int control; /* 0x18 (CSR6) */
++ volatile unsigned int intr_ena; /* 0x1c (CSR7) */
++ volatile unsigned int rcv_missed; /* 0x20 (CSR8) */
++ volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */
++ volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */
++ volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */
++} DMA;
++
++#define dma (*((volatile DMA *) DMA_BASE))
++
++// macro to convert from virtual to physical address
++#define phys_addr(x) (x & 0x1fffffff)
++
++#endif /* PLATFORM_H */
+diff -urN linux.old/drivers/net/Kconfig linux.eth/drivers/net/Kconfig
+--- linux.old/drivers/net/Kconfig 2006-12-14 23:53:29.000000000 +0100
++++ linux.eth/drivers/net/Kconfig 2006-12-16 04:30:11.000000000 +0100
+@@ -313,6 +313,12 @@
+
+ source "drivers/net/arm/Kconfig"
+
++config AR2313
++ tristate "AR2313 Ethernet support"
++ depends on NET_ETHERNET && AR531X
++ help
++ Support for the AR231x/531x ethernet controller
++
+ config MACE
+ tristate "MACE (Power Mac ethernet) support"
+ depends on NET_ETHERNET && PPC_PMAC && PPC32
+diff -urN linux.old/drivers/net/Makefile linux.eth/drivers/net/Makefile
+--- linux.old/drivers/net/Makefile 2006-12-14 23:53:29.000000000 +0100
++++ linux.eth/drivers/net/Makefile 2006-12-16 04:30:11.000000000 +0100
+@@ -9,6 +9,7 @@
+ obj-$(CONFIG_EHEA) += ehea/
+ obj-$(CONFIG_BONDING) += bonding/
+ obj-$(CONFIG_GIANFAR) += gianfar_driver.o
++obj-$(CONFIG_AR2313) += ar2313/
+
+ gianfar_driver-objs := gianfar.o \
+ gianfar_ethtool.o \
diff --git a/target/linux/atheros-2.6/patches/140-redboot_partition_scan.patch b/target/linux/atheros-2.6/patches/140-redboot_partition_scan.patch
new file mode 100644
index 000000000..979b2f48b
--- /dev/null
+++ b/target/linux/atheros-2.6/patches/140-redboot_partition_scan.patch
@@ -0,0 +1,24 @@
+diff -urN linux.old/drivers/mtd/redboot.c linux.dev/drivers/mtd/redboot.c
+--- linux.old/drivers/mtd/redboot.c 2006-12-14 23:53:29.000000000 +0100
++++ linux.dev/drivers/mtd/redboot.c 2006-12-16 04:23:42.000000000 +0100
+@@ -64,6 +64,7 @@
+ if (!buf)
+ return -ENOMEM;
+
++restart:
+ if ( directory < 0 )
+ offset = master->size + directory*master->erasesize;
+ else
+@@ -139,6 +140,11 @@
+ }
+ if (i == numslots) {
+ /* Didn't find it */
++ if (offset + master->erasesize < master->size) {
++ /* not at the end of the flash yet, maybe next block :) */
++ directory++;
++ goto restart;
++ }
+ printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
+ master->name);
+ ret = 0;
+