diff options
Diffstat (limited to 'target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c')
| -rw-r--r-- | target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c | 472 |
1 files changed, 0 insertions, 472 deletions
diff --git a/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c b/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c deleted file mode 100644 index 70c6ebe60..000000000 --- a/target/linux/brcm63xx-2.6/files/arch/mips/bcm963xx/setup.c +++ /dev/null @@ -1,472 +0,0 @@ -/* -<:copyright-gpl - Copyright 2002 Broadcom Corp. All Rights Reserved. - - This program is free software; you can distribute it and/or modify it - under the terms of the GNU General Public License (Version 2) as - published by the Free Software Foundation. - - This program is distributed in the hope 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. -:> -*/ -/* - * Generic setup routines for Broadcom 963xx MIPS boards - */ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/console.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/pm.h> -#include <linux/bootmem.h> - -#include <asm/addrspace.h> -#include <asm/bcache.h> -#include <asm/irq.h> -#include <asm/time.h> -#include <asm/reboot.h> -#include <asm/gdb-stub.h> -#include <asm/bootinfo.h> -#include <asm/cpu.h> -#include <asm/mach-bcm963xx/bootloaders.h> - -extern void brcm_time_init(void); -extern int boot_loader_type; - -#include <linux/pci.h> -#include <linux/delay.h> -#include <bcm_map_part.h> -#include <6348_map_part.h> -#include <bcmpci.h> - -static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE); - -/* This function should be in a board specific directory. For now, - * assume that all boards that include this file use a Broadcom chip - * with a soft reset bit in the PLL control register. - */ -static void brcm_machine_restart(char *command) -{ - const unsigned long ulSoftReset = 0x00000001; - unsigned long *pulPllCtrl = (unsigned long *) 0xfffe0008; - *pulPllCtrl |= ulSoftReset; -} - -static void brcm_machine_halt(void) -{ - printk("System halted\n"); - while (1); -} - -static void mpi_SetLocalPciConfigReg(uint32 reg, uint32 value) -{ - /* write index then value */ - mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; - mpi->pcicfgdata = value; -} - -static uint32 mpi_GetLocalPciConfigReg(uint32 reg) -{ - /* write index then get value */ - mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; - return mpi->pcicfgdata; -} - -/* - * mpi_ResetPcCard: Set/Reset the PcCard - */ -static void mpi_ResetPcCard(int cardtype, BOOL bReset) -{ - if (cardtype == MPI_CARDTYPE_NONE) { - return; - } - - if (cardtype == MPI_CARDTYPE_CARDBUS) { - bReset = ! bReset; - } - - if (bReset) { - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); - } else { - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 | PCCARD_CARD_RESET); - } -} - -/* - * mpi_ConfigCs: Configure an MPI/EBI chip select - */ -static void mpi_ConfigCs(uint32 cs, uint32 base, uint32 size, uint32 flags) -{ - mpi->cs[cs].base = ((base & 0x1FFFFFFF) | size); - mpi->cs[cs].config = flags; -} - -/* - * mpi_InitPcmciaSpace - */ -static void mpi_InitPcmciaSpace(void) -{ - // ChipSelect 4 controls PCMCIA Memory accesses - mpi_ConfigCs(PCMCIA_COMMON_BASE, pcmciaMem, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); - // ChipSelect 5 controls PCMCIA Attribute accesses - mpi_ConfigCs(PCMCIA_ATTRIBUTE_BASE, pcmciaAttr, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); - // ChipSelect 6 controls PCMCIA I/O accesses - mpi_ConfigCs(PCMCIA_IO_BASE, pcmciaIo, EBI_SIZE_64K, (EBI_WORD_WIDE|EBI_ENABLE)); - - mpi->pcmcia_cntl2 = ((PCMCIA_ATTR_ACTIVE << RW_ACTIVE_CNT_BIT) | - (PCMCIA_ATTR_INACTIVE << INACTIVE_CNT_BIT) | - (PCMCIA_ATTR_CE_SETUP << CE_SETUP_CNT_BIT) | - (PCMCIA_ATTR_CE_HOLD << CE_HOLD_CNT_BIT)); - - mpi->pcmcia_cntl2 |= (PCMCIA_HALFWORD_EN | PCMCIA_BYTESWAP_DIS); -} - -/* - * cardtype_vcc_detect: PC Card's card detect and voltage sense connection - * - * CD1#/ CD2#/ VS1#/ VS2#/ Card Initial Vcc - * CCD1# CCD2# CVS1 CVS2 Type - * - * GND GND open open 16-bit 5 vdc - * - * GND GND GND open 16-bit 3.3 vdc - * - * GND GND open GND 16-bit x.x vdc - * - * GND GND GND GND 16-bit 3.3 & x.x vdc - * - *==================================================================== - * - * CVS1 GND CCD1# open CardBus 3.3 vdc - * - * GND CVS2 open CCD2# CardBus x.x vdc - * - * GND CVS1 CCD2# open CardBus y.y vdc - * - * GND CVS2 GND CCD2# CardBus 3.3 & x.x vdc - * - * CVS2 GND open CCD1# CardBus x.x & y.y vdc - * - * GND CVS1 CCD2# open CardBus 3.3, x.x & y.y vdc - * - */ -static int cardtype_vcc_detect(void) -{ - uint32 data32; - int cardtype; - - cardtype = MPI_CARDTYPE_NONE; - mpi->pcmcia_cntl1 = 0x0000A000; // Turn on the output enables and drive - // the CVS pins to 0. - data32 = mpi->pcmcia_cntl1; - switch (data32 & 0x00000003) // Test CD1# and CD2#, see if card is plugged in. - { - case 0x00000003: // No Card is in the slot. - printk("mpi: No Card is in the PCMCIA slot\n"); - break; - - case 0x00000002: // Partial insertion, No CD2#. - printk("mpi: Card in the PCMCIA slot partial insertion, no CD2 signal\n"); - break; - - case 0x00000001: // Partial insertion, No CD1#. - printk("mpi: Card in the PCMCIA slot partial insertion, no CD1 signal\n"); - break; - - case 0x00000000: - mpi->pcmcia_cntl1 = 0x0000A0C0; // Turn off the CVS output enables and - // float the CVS pins. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - // Read the Register. - switch (data32 & 0x0000000C) // See what is on the CVS pins. - { - case 0x00000000: // CVS1 and CVS2 are tied to ground, only 1 option. - printk("mpi: Detected 3.3 & x.x 16-bit PCMCIA card\n"); - cardtype = MPI_CARDTYPE_PCMCIA; - break; - - case 0x00000004: // CVS1 is open or tied to CCD1/CCD2 and CVS2 is tied to ground. - // 2 valid voltage options. - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - mpi->pcmcia_cntl1 = 0x0000A080; // Drive CVS1 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS2, not valid. - printk("mpi: Unknown card plugged into slot\n"); - } else { // CCD2 is tied to CVS1. - printk("mpi: Detected 3.3, x.x and y.y Cardbus card\n"); - cardtype = MPI_CARDTYPE_CARDBUS; - } - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - printk("mpi: Detected x.x vdc 16-bit PCMCIA card\n"); - cardtype = MPI_CARDTYPE_PCMCIA; - break; - } - break; - - case 0x00000008: // CVS2 is open or tied to CCD1/CCD2 and CVS1 is tied to ground. - // 2 valid voltage options. - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS1, not valid. - printk("mpi: Unknown card plugged into slot\n"); - } else {// CCD2 is tied to CVS2. - printk("mpi: Detected 3.3 and x.x Cardbus card\n"); - cardtype = MPI_CARDTYPE_CARDBUS; - } - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - cardtype = MPI_CARDTYPE_PCMCIA; - printk("mpi: Detected 3.3 vdc 16-bit PCMCIA card\n"); - break; - } - break; - - case 0x0000000C: // CVS1 and CVS2 are open or tied to CCD1/CCD2. - // 5 valid voltage options. - - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - // CCD1 is tied to ground. - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS1. - printk("mpi: Detected y.y vdc Cardbus card\n"); - } else { // CCD2 is tied to CVS2. - printk("mpi: Detected x.x vdc Cardbus card\n"); - } - cardtype = MPI_CARDTYPE_CARDBUS; - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // CCD2 is tied to ground. - - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000001) {// CCD1 is tied to CVS1. - printk("mpi: Detected 3.3 vdc Cardbus card\n"); - } else { // CCD1 is tied to CVS2. - printk("mpi: Detected x.x and y.y Cardbus card\n"); - } - cardtype = MPI_CARDTYPE_CARDBUS; - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - cardtype = MPI_CARDTYPE_PCMCIA; - printk("mpi: Detected 5 vdc 16-bit PCMCIA card\n"); - break; - } - break; - - default: - printk("mpi: Unknown card plugged into slot\n"); - break; - - } - } - return cardtype; -} - -/* - * mpi_DetectPcCard: Detect the plugged in PC-Card - * Return: < 0 => Unknown card detected - * 0 => No card detected - * 1 => 16-bit card detected - * 2 => 32-bit CardBus card detected - */ -static int mpi_DetectPcCard(void) -{ - int cardtype; - - cardtype = cardtype_vcc_detect(); - switch(cardtype) { - case MPI_CARDTYPE_PCMCIA: - mpi->pcmcia_cntl1 &= ~0x0000e000; // disable enable bits - //mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); - mpi->pcmcia_cntl1 |= (PCMCIA_ENABLE | PCMCIA_GPIO_ENABLE); - mpi_InitPcmciaSpace(); - mpi_ResetPcCard(cardtype, FALSE); - // Hold card in reset for 10ms - mdelay(10); - mpi_ResetPcCard(cardtype, TRUE); - // Let card come out of reset - mdelay(100); - break; - case MPI_CARDTYPE_CARDBUS: - // 8 => CardBus Enable - // 1 => PCI Slot Number - // C => Float VS1 & VS2 - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & 0xFFFF0000) | - CARDBUS_ENABLE | - (CARDBUS_SLOT << 8)| - VS2_OEN | - VS1_OEN; - /* access to this memory window will be to/from CardBus */ - mpi->l2pmremap1 |= CARDBUS_MEM; - - // Need to reset the Cardbus Card. There's no CardManager to do this, - // and we need to be ready for PCI configuration. - mpi_ResetPcCard(cardtype, FALSE); - // Hold card in reset for 10ms - mdelay(10); - mpi_ResetPcCard(cardtype, TRUE); - // Let card come out of reset - mdelay(100); - break; - default: - break; - } - return cardtype; -} - -static int mpi_init(void) -{ - unsigned long data; - unsigned int chipid, chiprev, sdramsize; - - printk("Broadcom BCM963xx MPI\n"); - chipid = (PERF->RevID & 0xFFFF0000) >> 16; - chiprev = (PERF->RevID & 0xFF); - - if (boot_loader_type == BOOT_LOADER_CFE) - sdramsize = boot_mem_map.map[0].size; - else - sdramsize = 0x01000000; - /* - * Init the pci interface - */ - data = GPIO->GPIOMode; // GPIO mode register - data |= GROUP2_PCI | GROUP1_MII_PCCARD; // PCI internal arbiter + Cardbus - GPIO->GPIOMode = data; // PCI internal arbiter - - /* - * In the BCM6348 CardBus support is defaulted to Slot 0 - * because there is no external IDSEL for CardBus. To disable - * the CardBus and allow a standard PCI card in Slot 0 - * set the cbus_idsel field to 0x1f. - */ - /* - uData = mpi->pcmcia_cntl1; - uData |= CARDBUS_IDSEL; - mpi->pcmcia_cntl1 = uData; - */ - // Setup PCI I/O Window range. Give 64K to PCI I/O - mpi->l2piorange = ~(BCM_PCI_IO_SIZE_64KB-1); - // UBUS to PCI I/O base address - mpi->l2piobase = BCM_PCI_IO_BASE & BCM_PCI_ADDR_MASK; - // UBUS to PCI I/O Window remap - mpi->l2pioremap = (BCM_PCI_IO_BASE | MEM_WINDOW_EN); - - // enable PCI related GPIO pins and data swap between system and PCI bus - mpi->locbuscntrl = (EN_PCI_GPIO | DIR_U2P_NOSWAP); - - /* Enable 6348 BusMaster and Memory access mode */ - data = mpi_GetLocalPciConfigReg(PCI_COMMAND); - data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - mpi_SetLocalPciConfigReg(PCI_COMMAND, data); - - /* Configure two 16 MByte PCI to System memory regions. */ - /* These memory regions are used when PCI device is a bus master */ - /* Accesses to the SDRAM from PCI bus will be "byte swapped" for this region */ - mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_3, BCM_HOST_MEM_SPACE1); - mpi->sp0remap = 0x0; - - /* Accesses to the SDRAM from PCI bus will not be "byte swapped" for this region */ - mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_4, BCM_HOST_MEM_SPACE2); - mpi->sp1remap = 0x0; - mpi->pcimodesel |= (PCI_BAR2_NOSWAP | 0x40); - - if ((chipid == 0x6348) && (chiprev == 0xb0)) { - mpi->sp0range = ~(sdramsize-1); - mpi->sp1range = ~(sdramsize-1); - } - /* - * Change 6348 PCI Cfg Reg. offset 0x40 to PCI memory read retry count infinity - * by set 0 in bit 8~15. This resolve read Bcm4306 srom return 0xffff in - * first read. - */ - data = mpi_GetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER); - data &= ~BRCM_PCI_CONFIG_TIMER_RETRY_MASK; - data |= 0x00000080; - mpi_SetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER, data); - - /* enable pci interrupt */ - mpi->locintstat |= (EXT_PCI_INT << 16); - - mpi_DetectPcCard(); - - ioport_resource.start = BCM_PCI_IO_BASE; - ioport_resource.end = BCM_PCI_IO_BASE + BCM_PCI_IO_SIZE_64KB; - -#if defined(CONFIG_USB) - PERF->blkEnables |= USBH_CLK_EN; - mdelay(100); - *USBH_NON_OHCI = NON_OHCI_BYTE_SWAP; -#endif - - return 0; -} - -void __init plat_mem_setup(void) -{ - _machine_restart = brcm_machine_restart; - _machine_halt = brcm_machine_halt; - pm_power_off = brcm_machine_halt; - - board_time_init = brcm_time_init; - - /* mpi initialization */ - mpi_init(); -} |