[uboot-lantiq] add support for arv4518 and arv752DWP22 boards

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25071 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 622 insertions, 0 deletions

diff --git a/package/uboot-lantiq/files/board/arcadyan/arv752DWP22/lowlevel_init.S b/package/uboot-lantiq/files/board/arcadyan/arv752DWP22/lowlevel_init.S
new file mode 100644
index 000000000..2f2c2255e
--- /dev/null
+++ b/package/uboot-lantiq/files/board/arcadyan/arv752DWP22/lowlevel_init.S
@@ -0,0 +1,622 @@
+/*
+ *  Memory sub-system initialization code for Danube board.
+ *  Andre Messerschmidt
+ *  Copyright (c) 2005	Infineon Technologies AG
+ *
+ *  Based on Inca-IP code
+ *  Copyright (c) 2003	Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/* History:
+      peng liu May 25, 2006, for PLL setting after reset, 05252006
+ */
+#include <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+
+#if 0
+
+#if defined(CONFIG_USE_DDR_RAM)
+
+#if defined(CONFIG_USE_DDR_RAM_CFG_111M)
+#include "ddr_settings_r111.h"
+#define DDR111
+#elif defined(CONFIG_USE_DDR_RAM_CFG_166M)
+#include "ddr_settings_r166.h"
+#define DDR166
+#elif defined(CONFIG_USE_DDR_RAM_CFG_e111M)
+#include "ddr_settings_e111.h"
+#define DDR111
+#elif defined(CONFIG_USE_DDR_RAM_CFG_e166M)
+#include "ddr_settings_e166.h"
+#define DDR166
+#elif defined(CONFIG_USE_DDR_RAM_CFG_promos400)
+#include "ddr_settings_PROMOSDDR400.h"
+#define DDR166
+#elif defined(CONFIG_USE_DDR_RAM_CFG_samsung166)
+#include "ddr_settings_Samsung_166.h"
+#define DDR166
+#elif defined(CONFIG_USE_DDR_RAM_CFG_psc166)
+#include "ddr_settings_psc_166.h"
+#define DDR166
+#else
+#warning "missing definition for ddr_settings.h, use default!"
+#include "ddr_settings.h"
+#endif
+#endif /* CONFIG_USE_DDR_RAM */
+
+#else
+
+#include "ddr_settings_psc_166.h"
+#define DDR166
+
+#endif
+
+#if defined(CONFIG_USE_DDR_RAM) &&  !defined(MC_DC0_VALUE)
+#error "missing include of ddr_settings.h"
+#endif
+
+#define EBU_MODUL_BASE		0xBE105300
+#define EBU_CLC(value)		0x0000(value)
+#define EBU_CON(value)		0x0010(value)
+#define EBU_ADDSEL0(value)	0x0020(value)
+#define EBU_ADDSEL1(value)	0x0024(value)
+#define EBU_ADDSEL2(value)	0x0028(value)
+#define EBU_ADDSEL3(value)	0x002C(value)
+#define EBU_BUSCON0(value)	0x0060(value)
+#define EBU_BUSCON1(value)	0x0064(value)
+#define EBU_BUSCON2(value)	0x0068(value)
+#define EBU_BUSCON3(value)	0x006C(value)
+
+#define MC_MODUL_BASE		0xBF800000
+#define MC_ERRCAUSE(value)	0x0010(value)
+#define MC_ERRADDR(value)	0x0020(value)
+#define MC_CON(value)		0x0060(value)
+
+#define MC_SRAM_ENABLE		0x00000004
+#define MC_SDRAM_ENABLE		0x00000002
+#define MC_DDRRAM_ENABLE	0x00000001
+
+#define MC_SDR_MODUL_BASE	0xBF800200
+#define MC_IOGP(value)		0x0000(value)
+#define MC_CTRLENA(value)	0x0010(value)
+#define MC_MRSCODE(value)	0x0020(value)
+#define MC_CFGDW(value)		0x0030(value)
+#define MC_CFGPB0(value)	0x0040(value)
+#define MC_LATENCY(value)	0x0080(value)
+#define MC_TREFRESH(value)	0x0090(value)
+#define MC_SELFRFSH(value)	0x00A0(value)
+
+#define MC_DDR_MODUL_BASE	0xBF801000
+#define MC_DC00(value)		0x0000(value)
+#define MC_DC01(value)		0x0010(value)
+#define MC_DC02(value)		0x0020(value)
+#define MC_DC03(value)		0x0030(value)
+#define MC_DC04(value)		0x0040(value)
+#define MC_DC05(value)		0x0050(value)
+#define MC_DC06(value)		0x0060(value)
+#define MC_DC07(value)		0x0070(value)
+#define MC_DC08(value)		0x0080(value)
+#define MC_DC09(value)		0x0090(value)
+#define MC_DC10(value)		0x00A0(value)
+#define MC_DC11(value)		0x00B0(value)
+#define MC_DC12(value)		0x00C0(value)
+#define MC_DC13(value)		0x00D0(value)
+#define MC_DC14(value)		0x00E0(value)
+#define MC_DC15(value)		0x00F0(value)
+#define MC_DC16(value)		0x0100(value)
+#define MC_DC17(value)		0x0110(value)
+#define MC_DC18(value)		0x0120(value)
+#define MC_DC19(value)		0x0130(value)
+#define MC_DC20(value)		0x0140(value)
+#define MC_DC21(value)		0x0150(value)
+#define MC_DC22(value)		0x0160(value)
+#define MC_DC23(value)		0x0170(value)
+#define MC_DC24(value)		0x0180(value)
+#define MC_DC25(value)		0x0190(value)
+#define MC_DC26(value)		0x01A0(value)
+#define MC_DC27(value)		0x01B0(value)
+#define MC_DC28(value)		0x01C0(value)
+#define MC_DC29(value)		0x01D0(value)
+#define MC_DC30(value)		0x01E0(value)
+#define MC_DC31(value)		0x01F0(value)
+#define MC_DC32(value)		0x0200(value)
+#define MC_DC33(value)		0x0210(value)
+#define MC_DC34(value)		0x0220(value)
+#define MC_DC35(value)		0x0230(value)
+#define MC_DC36(value)		0x0240(value)
+#define MC_DC37(value)		0x0250(value)
+#define MC_DC38(value)		0x0260(value)
+#define MC_DC39(value)		0x0270(value)
+#define MC_DC40(value)		0x0280(value)
+#define MC_DC41(value)		0x0290(value)
+#define MC_DC42(value)		0x02A0(value)
+#define MC_DC43(value)		0x02B0(value)
+#define MC_DC44(value)		0x02C0(value)
+#define MC_DC45(value)		0x02D0(value)
+#define MC_DC46(value)		0x02E0(value)
+
+#define RCU_OFFSET  0xBF203000
+#define RCU_RST_REQ      (RCU_OFFSET + 0x0010)
+#define RCU_STS          (RCU_OFFSET + 0x0014)
+
+#define CGU_OFFSET  0xBF103000
+#define  PLL0_CFG     (CGU_OFFSET + 0x0004)
+#define  PLL1_CFG     (CGU_OFFSET + 0x0008)
+#define  PLL2_CFG     (CGU_OFFSET + 0x000C)
+#define  CGU_SYS      (CGU_OFFSET + 0x0010)
+#define  CGU_UPDATE   (CGU_OFFSET + 0x0014)
+#define  IF_CLK       (CGU_OFFSET + 0x0018)
+#define  CGU_SMD      (CGU_OFFSET + 0x0020)
+#define  CGU_CT1SR    (CGU_OFFSET + 0x0028)
+#define  CGU_CT2SR    (CGU_OFFSET + 0x002C)
+#define  CGU_PCMCR    (CGU_OFFSET + 0x0030)
+#define  PCI_CR_PCI   (CGU_OFFSET + 0x0034)
+#define  CGU_OSC_CTRL (CGU_OFFSET + 0x001C)
+#define  CGU_MIPS_PWR_DWN (CGU_OFFSET + 0x0038)
+#define  CLK_MEASURE  (CGU_OFFSET + 0x003C)
+
+//05252006
+#define  pll0_35MHz_CONFIG 0x9D861059
+#define  pll1_35MHz_CONFIG 0x1A260CD9
+#define  pll2_35MHz_CONFIG 0x8000f1e5
+#define  pll0_36MHz_CONFIG 0x1000125D
+#define  pll1_36MHz_CONFIG 0x1B1E0C99
+#define  pll2_36MHz_CONFIG 0x8002f2a1
+//05252006
+
+//06063001-joelin disable the PCI CFRAME mask -start
+/*CFRAME is an I/O signal, in the chip, the output CFRAME is selected via GPIO altsel pins, so if you select MII1 RXD1, the CFRAME will not come out.
+But the CFRAME input still take the signal from the pad and not disabled when altsel choose other function. So when MII1_RXD1 is low from other device, the EBU interface will be disabled.
+
+The chip function in such a way that disable the CFRAME mask mean EBU not longer check CFRAME to be the device using the bus.
+The side effect is the entire PCI block will see CFRAME low all the time meaning PCI cannot use the bus at all so no more PCI function.
+*/
+#define PCI_CR_PR_OFFSET  0xBE105400
+#define PCI_CR_PCI_MOD_REG          (PCI_CR_PR_OFFSET + 0x0030)
+#define PCI_CONFIG_SPACE  0xB7000000
+#define CS_CFM		(PCI_CONFIG_SPACE + 0x6C)
+//06063001-joelin disable the PCI CFRAME mask -end
+	.set	noreorder
+
+
+/*
+ * void ebu_init(void)
+ */
+	.globl	ebu_init
+	.ent	ebu_init
+ebu_init:
+
+#if defined(CONFIG_EBU_ADDSEL0) || defined(CONFIG_EBU_ADDSEL1) || \
+	defined(CONFIG_EBU_ADDSEL2) || defined(CONFIG_EBU_ADDSEL3) || \
+	defined(CONFIG_EBU_BUSCON0) || defined(CONFIG_EBU_BUSCON1) || \
+	defined(CONFIG_EBU_BUSCON2) || defined(CONFIG_EBU_BUSCON3)
+
+	li	t1, EBU_MODUL_BASE
+#if defined(CONFIG_EBU_ADDSEL0)
+	li	t2, CONFIG_EBU_ADDSEL0
+	sw	t2, EBU_ADDSEL0(t1)
+#endif
+#if defined(CONFIG_EBU_ADDSEL1)
+	li	t2, CONFIG_EBU_ADDSEL1
+	sw	t2, EBU_ADDSEL1(t1)
+#endif
+#if defined(CONFIG_EBU_ADDSEL2)
+	li	t2, CONFIG_EBU_ADDSEL2
+	sw	t2, EBU_ADDSEL2(t1)
+#endif
+#if defined(CONFIG_EBU_ADDSEL3)
+	li	t2, CONFIG_EBU_ADDSEL3
+	sw	t2, EBU_ADDSEL3(t1)
+#endif
+
+#if defined(CONFIG_EBU_BUSCON0)
+	li	t2, CONFIG_EBU_BUSCON0
+	sw	t2, EBU_BUSCON0(t1)
+#endif
+#if defined(CONFIG_EBU_BUSCON1)
+	li	t2, CONFIG_EBU_BUSCON1
+	sw	t2, EBU_BUSCON1(t1)
+#endif
+#if defined(CONFIG_EBU_BUSCON2)
+	li	t2, CONFIG_EBU_BUSCON2
+	sw	t2, EBU_BUSCON2(t1)
+#endif
+#if defined(CONFIG_EBU_BUSCON3)
+	li	t2, CONFIG_EBU_BUSCON3
+	sw	t2, EBU_BUSCON3(t1)
+#endif
+
+#endif
+
+	j	ra
+	nop
+
+	.end	ebu_init
+
+
+/*
+ * void cgu_init(long)
+ *
+ * a0 has the clock value
+ */
+	.globl	cgu_init
+	.ent	cgu_init
+cgu_init:
+	li  t2, CGU_SYS
+	lw  t2,0(t2)
+	beq t2,a0,freq_up2date
+	nop
+
+	li  t2, RCU_STS
+	lw  t2, 0(t2)
+	and t2,0x00020000
+	beq t2,0x00020000,boot_36MHZ
+	nop
+//05252006
+	li  t1, PLL0_CFG
+	li  t2, pll0_35MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, PLL1_CFG
+	li  t2, pll1_35MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, PLL2_CFG
+	li  t2, pll2_35MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, CGU_SYS
+	sw	a0,0(t1)
+	li  t1, RCU_RST_REQ
+	li  t2, 0x40000008
+	sw	t2,0(t1)
+	b   wait_reset
+	nop
+boot_36MHZ:
+	li  t1, PLL0_CFG
+	li  t2, pll0_36MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, PLL1_CFG
+	li  t2, pll1_36MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, PLL2_CFG
+	li  t2, pll2_36MHz_CONFIG
+	sw	t2,0(t1)
+	li  t1, CGU_SYS
+	sw	a0,0(t1)
+	li  t1, RCU_RST_REQ
+	li  t2, 0x40000008
+	sw	t2,0(t1)
+//05252006
+
+wait_reset:
+	b   wait_reset
+	nop
+freq_up2date:
+	j ra
+	nop
+
+	.end	cgu_init
+
+#ifndef CONFIG_USE_DDR_RAM
+/*
+ * void sdram_init(long)
+ *
+ * a0 has the clock value
+ */
+	.globl	sdram_init
+	.ent	sdram_init
+sdram_init:
+
+	/* SDRAM Initialization
+	 */
+	li	t1, MC_MODUL_BASE
+
+	/* Clear Error log registers */
+	sw	zero, MC_ERRCAUSE(t1)
+	sw	zero, MC_ERRADDR(t1)
+
+	/* Enable SDRAM module in memory controller */
+	li	t3, MC_SDRAM_ENABLE
+	lw	t2, MC_CON(t1)
+	or	t3, t2, t3
+	sw	t3, MC_CON(t1)
+
+	li	t1, MC_SDR_MODUL_BASE
+
+	/* disable the controller */
+	li	t2, 0
+	sw	t2, MC_CTRLENA(t1)
+
+	li	t2, 0x822
+	sw	t2, MC_IOGP(t1)
+
+	li	t2, 0x2
+	sw	t2, MC_CFGDW(t1)
+
+	/* Set CAS Latency */
+	li	t2, 0x00000020
+	sw	t2, MC_MRSCODE(t1)
+
+	/* Set CS0 to SDRAM parameters */
+	li	t2, 0x000014d8
+	sw	t2, MC_CFGPB0(t1)
+
+	/* Set SDRAM latency parameters */
+	li  	t2, 0x00036325;   /* BC PC100 */
+	sw	t2, MC_LATENCY(t1)
+
+	/* Set SDRAM refresh rate */
+	li	t2, 0x00000C30
+	sw	t2, MC_TREFRESH(t1)
+
+	/* Clear Power-down registers */
+	sw	zero, MC_SELFRFSH(t1)
+
+	/* Finally enable the controller */
+	li	t2, 1
+	sw	t2, MC_CTRLENA(t1)
+
+	j	ra
+	nop
+
+	.end	sdram_init
+
+#endif /* !CONFIG_USE_DDR_RAM */
+
+#ifdef CONFIG_USE_DDR_RAM
+/*
+ * void ddrram_init(long)
+ *
+ * a0 has the clock value
+ */
+	.globl	ddrram_init
+	.ent	ddrram_init
+ddrram_init:
+
+	/* DDR-DRAM Initialization
+	 */
+	li	t1, MC_MODUL_BASE
+
+	/* Clear Error log registers */
+	sw	zero, MC_ERRCAUSE(t1)
+	sw	zero, MC_ERRADDR(t1)
+
+	/* Enable DDR module in memory controller */
+	li	t3, MC_DDRRAM_ENABLE
+	lw	t2, MC_CON(t1)
+	or	t3, t2, t3
+	sw	t3, MC_CON(t1)
+
+	li	t1, MC_DDR_MODUL_BASE
+
+	/* Write configuration to DDR controller registers */
+	li	t2, MC_DC0_VALUE
+	sw	t2, MC_DC00(t1)
+
+	li	t2, MC_DC1_VALUE
+	sw	t2, MC_DC01(t1)
+
+	li	t2, MC_DC2_VALUE
+	sw	t2, MC_DC02(t1)
+
+	li	t2, MC_DC3_VALUE
+	sw	t2, MC_DC03(t1)
+
+	li	t2, MC_DC4_VALUE
+	sw	t2, MC_DC04(t1)
+
+	li	t2, MC_DC5_VALUE
+	sw	t2, MC_DC05(t1)
+
+	li	t2, MC_DC6_VALUE
+	sw	t2, MC_DC06(t1)
+
+	li	t2, MC_DC7_VALUE
+	sw	t2, MC_DC07(t1)
+
+	li	t2, MC_DC8_VALUE
+	sw	t2, MC_DC08(t1)
+
+	li	t2, MC_DC9_VALUE
+	sw	t2, MC_DC09(t1)
+
+	li	t2, MC_DC10_VALUE
+	sw	t2, MC_DC10(t1)
+
+	li	t2, MC_DC11_VALUE
+	sw	t2, MC_DC11(t1)
+
+	li	t2, MC_DC12_VALUE
+	sw	t2, MC_DC12(t1)
+
+	li	t2, MC_DC13_VALUE
+	sw	t2, MC_DC13(t1)
+
+	li	t2, MC_DC14_VALUE
+	sw	t2, MC_DC14(t1)
+
+	li	t2, MC_DC15_VALUE
+	sw	t2, MC_DC15(t1)
+
+	li	t2, MC_DC16_VALUE
+	sw	t2, MC_DC16(t1)
+
+	li	t2, MC_DC17_VALUE
+	sw	t2, MC_DC17(t1)
+
+	li	t2, MC_DC18_VALUE
+	sw	t2, MC_DC18(t1)
+
+	li	t2, MC_DC19_VALUE
+	sw	t2, MC_DC19(t1)
+
+	li	t2, MC_DC20_VALUE
+	sw	t2, MC_DC20(t1)
+
+	li	t2, MC_DC21_VALUE
+	sw	t2, MC_DC21(t1)
+
+	li	t2, MC_DC22_VALUE
+	sw	t2, MC_DC22(t1)
+
+	li	t2, MC_DC23_VALUE
+	sw	t2, MC_DC23(t1)
+
+	li	t2, MC_DC24_VALUE
+	sw	t2, MC_DC24(t1)
+
+	li	t2, MC_DC25_VALUE
+	sw	t2, MC_DC25(t1)
+
+	li	t2, MC_DC26_VALUE
+	sw	t2, MC_DC26(t1)
+
+	li	t2, MC_DC27_VALUE
+	sw	t2, MC_DC27(t1)
+
+	li	t2, MC_DC28_VALUE
+	sw	t2, MC_DC28(t1)
+
+	li	t2, MC_DC29_VALUE
+	sw	t2, MC_DC29(t1)
+
+	li	t2, MC_DC30_VALUE
+	sw	t2, MC_DC30(t1)
+
+	li	t2, MC_DC31_VALUE
+	sw	t2, MC_DC31(t1)
+
+	li	t2, MC_DC32_VALUE
+	sw	t2, MC_DC32(t1)
+
+	li	t2, MC_DC33_VALUE
+	sw	t2, MC_DC33(t1)
+
+	li	t2, MC_DC34_VALUE
+	sw	t2, MC_DC34(t1)
+
+	li	t2, MC_DC35_VALUE
+	sw	t2, MC_DC35(t1)
+
+	li	t2, MC_DC36_VALUE
+	sw	t2, MC_DC36(t1)
+
+	li	t2, MC_DC37_VALUE
+	sw	t2, MC_DC37(t1)
+
+	li	t2, MC_DC38_VALUE
+	sw	t2, MC_DC38(t1)
+
+	li	t2, MC_DC39_VALUE
+	sw	t2, MC_DC39(t1)
+
+	li	t2, MC_DC40_VALUE
+	sw	t2, MC_DC40(t1)
+
+	li	t2, MC_DC41_VALUE
+	sw	t2, MC_DC41(t1)
+
+	li	t2, MC_DC42_VALUE
+	sw	t2, MC_DC42(t1)
+
+	li	t2, MC_DC43_VALUE
+	sw	t2, MC_DC43(t1)
+
+	li	t2, MC_DC44_VALUE
+	sw	t2, MC_DC44(t1)
+
+	li	t2, MC_DC45_VALUE
+	sw	t2, MC_DC45(t1)
+
+	li	t2, MC_DC46_VALUE
+	sw	t2, MC_DC46(t1)
+
+	li	t2, 0x00000100
+	sw	t2, MC_DC03(t1)
+
+	j	ra
+	nop
+
+	.end	ddrram_init
+#endif /* CONFIG_USE_DDR_RAM */
+
+	.globl	lowlevel_init
+	.ent	lowlevel_init
+lowlevel_init:
+	/* EBU, CGU and SDRAM/DDR-RAM Initialization.
+	 */
+	move	t0, ra
+	/* We rely on the fact that non of the following ..._init() functions
+	 * modify t0
+	 */
+#if defined(CONFIG_SYS_EBU_BOOT)
+#if defined(DDR166)
+	/* 0xe8 means CPU0/CPU1 333M, DDR 167M, FPI 83M, PPE 240M */
+	li  a0,0xe8
+#elif defined(DDR133)
+	/* 0xe9 means CPU0/CPU1 333M, DDR 133M, FPI 83M, PPE 240M */
+	li  a0,0xe9
+#else /* defined(DDR111) */
+	/* 0xea means CPU0/CPU1 333M, DDR 111M, FPI 83M, PPE 240M */
+	li  a0,0xea
+#endif
+	bal	cgu_init
+	nop
+#endif /* CONFIG_SYS_EBU_BOOT */
+
+	bal	ebu_init
+	nop
+
+//06063001-joelin disable the PCI CFRAME mask-start
+#ifdef DISABLE_CFRAME
+	li  t1, PCI_CR_PCI	//mw bf103034 80000000
+	li  t2, 0x80000000
+	sw	t2,0(t1)
+
+	li  t1, PCI_CR_PCI_MOD_REG	//mw be105430 103
+	li  t2, 0x103
+	sw  t2,0(t1)
+
+	li  t1, CS_CFM			//mw b700006c 0
+	li  t2, 0x00
+	sw  t2, 0(t1)
+
+	li  t1, PCI_CR_PCI_MOD_REG	//mw be105430 103
+	li  t2, 0x1000103
+	sw  t2, 0(t1)
+#endif
+//06063001-joelin disable the PCI CFRAME mask-end
+
+#ifdef CONFIG_SYS_EBU_BOOT
+#ifndef CONFIG_SYS_RAMBOOT
+#ifdef CONFIG_USE_DDR_RAM
+	bal	ddrram_init
+	nop
+#else
+	bal	sdram_init
+	nop
+#endif
+#endif /* CONFIG_SYS_RAMBOOT */
+#endif /* CONFIG_SYS_EBU_BOOT */
+
+	move	ra, t0
+	j	ra
+	nop
+
+	.end	lowlevel_init