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Diffstat (limited to 'arch/ppc/platforms/ev64360.c')
-rw-r--r--arch/ppc/platforms/ev64360.c517
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diff --git a/arch/ppc/platforms/ev64360.c b/arch/ppc/platforms/ev64360.c
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index 6765676a5c6..00000000000
--- a/arch/ppc/platforms/ev64360.c
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-/*
- * Board setup routines for the Marvell EV-64360-BP Evaluation Board.
- *
- * Author: Lee Nicks <allinux@gmail.com>
- *
- * Based on code done by Rabeeh Khoury - rabeeh@galileo.co.il
- * Based on code done by - Mark A. Greer <mgreer@mvista.com>
- *
- * 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.
- */
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/console.h>
-#include <linux/initrd.h>
-#include <linux/root_dev.h>
-#include <linux/delay.h>
-#include <linux/seq_file.h>
-#include <linux/bootmem.h>
-#include <linux/mtd/physmap.h>
-#include <linux/mv643xx.h>
-#include <linux/platform_device.h>
-#include <asm/page.h>
-#include <asm/time.h>
-#include <asm/smp.h>
-#include <asm/todc.h>
-#include <asm/bootinfo.h>
-#include <asm/ppcboot.h>
-#include <asm/mv64x60.h>
-#include <asm/machdep.h>
-#include <platforms/ev64360.h>
-
-#define BOARD_VENDOR "Marvell"
-#define BOARD_MACHINE "EV-64360-BP"
-
-static struct mv64x60_handle bh;
-static void __iomem *sram_base;
-
-static u32 ev64360_flash_size_0;
-static u32 ev64360_flash_size_1;
-
-static u32 ev64360_bus_frequency;
-
-unsigned char __res[sizeof(bd_t)];
-
-TODC_ALLOC();
-
-static int __init
-ev64360_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
- return 0;
-}
-
-static void __init
-ev64360_setup_bridge(void)
-{
- struct mv64x60_setup_info si;
- int i;
-
- memset(&si, 0, sizeof(si));
-
- si.phys_reg_base = CONFIG_MV64X60_NEW_BASE;
-
- #ifdef CONFIG_PCI
- si.pci_1.enable_bus = 1;
- si.pci_1.pci_io.cpu_base = EV64360_PCI1_IO_START_PROC_ADDR;
- si.pci_1.pci_io.pci_base_hi = 0;
- si.pci_1.pci_io.pci_base_lo = EV64360_PCI1_IO_START_PCI_ADDR;
- si.pci_1.pci_io.size = EV64360_PCI1_IO_SIZE;
- si.pci_1.pci_io.swap = MV64x60_CPU2PCI_SWAP_NONE;
- si.pci_1.pci_mem[0].cpu_base = EV64360_PCI1_MEM_START_PROC_ADDR;
- si.pci_1.pci_mem[0].pci_base_hi = EV64360_PCI1_MEM_START_PCI_HI_ADDR;
- si.pci_1.pci_mem[0].pci_base_lo = EV64360_PCI1_MEM_START_PCI_LO_ADDR;
- si.pci_1.pci_mem[0].size = EV64360_PCI1_MEM_SIZE;
- si.pci_1.pci_mem[0].swap = MV64x60_CPU2PCI_SWAP_NONE;
- si.pci_1.pci_cmd_bits = 0;
- si.pci_1.latency_timer = 0x80;
- #else
- si.pci_0.enable_bus = 0;
- si.pci_1.enable_bus = 0;
- #endif
-
- for (i = 0; i < MV64x60_CPU2MEM_WINDOWS; i++) {
-#if defined(CONFIG_NOT_COHERENT_CACHE)
- si.cpu_prot_options[i] = 0;
- si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE;
- si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE;
- si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE;
-
- si.pci_1.acc_cntl_options[i] =
- MV64360_PCI_ACC_CNTL_SNOOP_NONE |
- MV64360_PCI_ACC_CNTL_SWAP_NONE |
- MV64360_PCI_ACC_CNTL_MBURST_128_BYTES |
- MV64360_PCI_ACC_CNTL_RDSIZE_256_BYTES;
-#else
- si.cpu_prot_options[i] = 0;
- si.enet_options[i] = MV64360_ENET2MEM_SNOOP_NONE; /* errata */
- si.mpsc_options[i] = MV64360_MPSC2MEM_SNOOP_NONE; /* errata */
- si.idma_options[i] = MV64360_IDMA2MEM_SNOOP_NONE; /* errata */
-
- si.pci_1.acc_cntl_options[i] =
- MV64360_PCI_ACC_CNTL_SNOOP_WB |
- MV64360_PCI_ACC_CNTL_SWAP_NONE |
- MV64360_PCI_ACC_CNTL_MBURST_32_BYTES |
- MV64360_PCI_ACC_CNTL_RDSIZE_32_BYTES;
-#endif
- }
-
- if (mv64x60_init(&bh, &si))
- printk(KERN_WARNING "Bridge initialization failed.\n");
-
- #ifdef CONFIG_PCI
- pci_dram_offset = 0; /* sys mem at same addr on PCI & cpu bus */
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = ev64360_map_irq;
- ppc_md.pci_exclude_device = mv64x60_pci_exclude_device;
-
- mv64x60_set_bus(&bh, 1, 0);
- bh.hose_b->first_busno = 0;
- bh.hose_b->last_busno = 0xff;
- #endif
-}
-
-/* Bridge & platform setup routines */
-void __init
-ev64360_intr_setup(void)
-{
- /* MPP 8, 9, and 10 */
- mv64x60_clr_bits(&bh, MV64x60_MPP_CNTL_1, 0xfff);
-
- /*
- * Define GPP 8,9,and 10 interrupt polarity as active low
- * input signal and level triggered
- */
- mv64x60_set_bits(&bh, MV64x60_GPP_LEVEL_CNTL, 0x700);
- mv64x60_clr_bits(&bh, MV64x60_GPP_IO_CNTL, 0x700);
-
- /* Config GPP intr ctlr to respond to level trigger */
- mv64x60_set_bits(&bh, MV64x60_COMM_ARBITER_CNTL, (1<<10));
-
- /* Erranum FEr PCI-#8 */
- mv64x60_clr_bits(&bh, MV64x60_PCI0_CMD, (1<<5) | (1<<9));
- mv64x60_clr_bits(&bh, MV64x60_PCI1_CMD, (1<<5) | (1<<9));
-
- /*
- * Dismiss and then enable interrupt on GPP interrupt cause
- * for CPU #0
- */
- mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, ~0x700);
- mv64x60_set_bits(&bh, MV64x60_GPP_INTR_MASK, 0x700);
-
- /*
- * Dismiss and then enable interrupt on CPU #0 high cause reg
- * BIT25 summarizes GPP interrupts 8-15
- */
- mv64x60_set_bits(&bh, MV64360_IC_CPU0_INTR_MASK_HI, (1<<25));
-}
-
-void __init
-ev64360_setup_peripherals(void)
-{
- u32 base;
-
- /* Set up window for boot CS */
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2BOOT_WIN,
- EV64360_BOOT_WINDOW_BASE, EV64360_BOOT_WINDOW_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2BOOT_WIN);
-
- /* We only use the 32-bit flash */
- mv64x60_get_32bit_window(&bh, MV64x60_CPU2BOOT_WIN, &base,
- &ev64360_flash_size_0);
- ev64360_flash_size_1 = 0;
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2DEV_1_WIN,
- EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2DEV_1_WIN);
-
- TODC_INIT(TODC_TYPE_DS1501, 0, 0,
- ioremap(EV64360_RTC_WINDOW_BASE, EV64360_RTC_WINDOW_SIZE), 8);
-
- mv64x60_set_32bit_window(&bh, MV64x60_CPU2SRAM_WIN,
- EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0);
- bh.ci->enable_window_32bit(&bh, MV64x60_CPU2SRAM_WIN);
- sram_base = ioremap(EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE);
-
- /* Set up Enet->SRAM window */
- mv64x60_set_32bit_window(&bh, MV64x60_ENET2MEM_4_WIN,
- EV64360_INTERNAL_SRAM_BASE, MV64360_SRAM_SIZE, 0x2);
- bh.ci->enable_window_32bit(&bh, MV64x60_ENET2MEM_4_WIN);
-
- /* Give enet r/w access to memory region */
- mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_0, (0x3 << (4 << 1)));
- mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_1, (0x3 << (4 << 1)));
- mv64x60_set_bits(&bh, MV64360_ENET2MEM_ACC_PROT_2, (0x3 << (4 << 1)));
-
- mv64x60_clr_bits(&bh, MV64x60_PCI1_PCI_DECODE_CNTL, (1 << 3));
- mv64x60_clr_bits(&bh, MV64x60_TIMR_CNTR_0_3_CNTL,
- ((1 << 0) | (1 << 8) | (1 << 16) | (1 << 24)));
-
-#if defined(CONFIG_NOT_COHERENT_CACHE)
- mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x00160000);
-#else
- mv64x60_write(&bh, MV64360_SRAM_CONFIG, 0x001600b2);
-#endif
-
- /*
- * Setting the SRAM to 0. Note that this generates parity errors on
- * internal data path in SRAM since it's first time accessing it
- * while after reset it's not configured.
- */
- memset(sram_base, 0, MV64360_SRAM_SIZE);
-
- /* set up PCI interrupt controller */
- ev64360_intr_setup();
-}
-
-static void __init
-ev64360_setup_arch(void)
-{
- if (ppc_md.progress)
- ppc_md.progress("ev64360_setup_arch: enter", 0);
-
- set_tb(0, 0);
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_SDA2;
-#endif
-
- /*
- * Set up the L2CR register.
- */
- _set_L2CR(L2CR_L2E | L2CR_L2PE);
-
- if (ppc_md.progress)
- ppc_md.progress("ev64360_setup_arch: calling setup_bridge", 0);
-
- ev64360_setup_bridge();
- ev64360_setup_peripherals();
- ev64360_bus_frequency = ev64360_bus_freq();
-
- printk(KERN_INFO "%s %s port (C) 2005 Lee Nicks "
- "(allinux@gmail.com)\n", BOARD_VENDOR, BOARD_MACHINE);
- if (ppc_md.progress)
- ppc_md.progress("ev64360_setup_arch: exit", 0);
-}
-
-/* Platform device data fixup routines. */
-#if defined(CONFIG_SERIAL_MPSC)
-static void __init
-ev64360_fixup_mpsc_pdata(struct platform_device *pdev)
-{
- struct mpsc_pdata *pdata;
-
- pdata = (struct mpsc_pdata *)pdev->dev.platform_data;
-
- pdata->max_idle = 40;
- pdata->default_baud = EV64360_DEFAULT_BAUD;
- pdata->brg_clk_src = EV64360_MPSC_CLK_SRC;
- /*
- * TCLK (not SysCLk) is routed to BRG, then to the MPSC. On most parts,
- * TCLK == SysCLK but on 64460, they are separate pins.
- * SysCLK can go up to 200 MHz but TCLK can only go up to 133 MHz.
- */
- pdata->brg_clk_freq = min(ev64360_bus_frequency, MV64x60_TCLK_FREQ_MAX);
-}
-#endif
-
-#if defined(CONFIG_MV643XX_ETH)
-static void __init
-ev64360_fixup_eth_pdata(struct platform_device *pdev)
-{
- struct mv643xx_eth_platform_data *eth_pd;
- static u16 phy_addr[] = {
- EV64360_ETH0_PHY_ADDR,
- EV64360_ETH1_PHY_ADDR,
- EV64360_ETH2_PHY_ADDR,
- };
-
- eth_pd = pdev->dev.platform_data;
- eth_pd->force_phy_addr = 1;
- eth_pd->phy_addr = phy_addr[pdev->id];
- eth_pd->tx_queue_size = EV64360_ETH_TX_QUEUE_SIZE;
- eth_pd->rx_queue_size = EV64360_ETH_RX_QUEUE_SIZE;
-}
-#endif
-
-static int
-ev64360_platform_notify(struct device *dev)
-{
- static struct {
- char *bus_id;
- void ((*rtn)(struct platform_device *pdev));
- } dev_map[] = {
-#if defined(CONFIG_SERIAL_MPSC)
- { MPSC_CTLR_NAME ".0", ev64360_fixup_mpsc_pdata },
- { MPSC_CTLR_NAME ".1", ev64360_fixup_mpsc_pdata },
-#endif
-#if defined(CONFIG_MV643XX_ETH)
- { MV643XX_ETH_NAME ".0", ev64360_fixup_eth_pdata },
- { MV643XX_ETH_NAME ".1", ev64360_fixup_eth_pdata },
- { MV643XX_ETH_NAME ".2", ev64360_fixup_eth_pdata },
-#endif
- };
- struct platform_device *pdev;
- int i;
-
- if (dev && dev->bus_id)
- for (i=0; i<ARRAY_SIZE(dev_map); i++)
- if (!strncmp(dev->bus_id, dev_map[i].bus_id,
- BUS_ID_SIZE)) {
-
- pdev = container_of(dev,
- struct platform_device, dev);
- dev_map[i].rtn(pdev);
- }
-
- return 0;
-}
-
-#ifdef CONFIG_MTD_PHYSMAP
-
-#ifndef MB
-#define MB (1 << 20)
-#endif
-
-/*
- * MTD Layout.
- *
- * FLASH Amount: 0xff000000 - 0xffffffff
- * ------------- -----------------------
- * Reserved: 0xff000000 - 0xff03ffff
- * JFFS2 file system: 0xff040000 - 0xffefffff
- * U-boot: 0xfff00000 - 0xffffffff
- */
-static int __init
-ev64360_setup_mtd(void)
-{
- u32 size;
- int ptbl_entries;
- static struct mtd_partition *ptbl;
-
- size = ev64360_flash_size_0 + ev64360_flash_size_1;
- if (!size)
- return -ENOMEM;
-
- ptbl_entries = 3;
-
- if ((ptbl = kzalloc(ptbl_entries * sizeof(struct mtd_partition),
- GFP_KERNEL)) == NULL) {
-
- printk(KERN_WARNING "Can't alloc MTD partition table\n");
- return -ENOMEM;
- }
-
- ptbl[0].name = "reserved";
- ptbl[0].offset = 0;
- ptbl[0].size = EV64360_MTD_RESERVED_SIZE;
- ptbl[1].name = "jffs2";
- ptbl[1].offset = EV64360_MTD_RESERVED_SIZE;
- ptbl[1].size = EV64360_MTD_JFFS2_SIZE;
- ptbl[2].name = "U-BOOT";
- ptbl[2].offset = EV64360_MTD_RESERVED_SIZE + EV64360_MTD_JFFS2_SIZE;
- ptbl[2].size = EV64360_MTD_UBOOT_SIZE;
-
- physmap_map.size = size;
- physmap_set_partitions(ptbl, ptbl_entries);
- return 0;
-}
-
-arch_initcall(ev64360_setup_mtd);
-#endif
-
-static void
-ev64360_restart(char *cmd)
-{
- ulong i = 0xffffffff;
- volatile unsigned char * rtc_base = ioremap(EV64360_RTC_WINDOW_BASE,0x4000);
-
- /* issue hard reset */
- rtc_base[0xf] = 0x80;
- rtc_base[0xc] = 0x00;
- rtc_base[0xd] = 0x01;
- rtc_base[0xf] = 0x83;
-
- while (i-- > 0) ;
- panic("restart failed\n");
-}
-
-static void
-ev64360_halt(void)
-{
- while (1) ;
- /* NOTREACHED */
-}
-
-static void
-ev64360_power_off(void)
-{
- ev64360_halt();
- /* NOTREACHED */
-}
-
-static int
-ev64360_show_cpuinfo(struct seq_file *m)
-{
- seq_printf(m, "vendor\t\t: " BOARD_VENDOR "\n");
- seq_printf(m, "machine\t\t: " BOARD_MACHINE "\n");
- seq_printf(m, "bus speed\t: %dMHz\n", ev64360_bus_frequency/1000/1000);
-
- return 0;
-}
-
-static void __init
-ev64360_calibrate_decr(void)
-{
- u32 freq;
-
- freq = ev64360_bus_frequency / 4;
-
- printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
- (long)freq / 1000000, (long)freq % 1000000);
-
- tb_ticks_per_jiffy = freq / HZ;
- tb_to_us = mulhwu_scale_factor(freq, 1000000);
-}
-
-unsigned long __init
-ev64360_find_end_of_memory(void)
-{
- return mv64x60_get_mem_size(CONFIG_MV64X60_NEW_BASE,
- MV64x60_TYPE_MV64360);
-}
-
-static inline void
-ev64360_set_bat(void)
-{
- mb();
- mtspr(SPRN_DBAT2U, 0xf0001ffe);
- mtspr(SPRN_DBAT2L, 0xf000002a);
- mb();
-}
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
-static void __init
-ev64360_map_io(void)
-{
- io_block_mapping(CONFIG_MV64X60_NEW_BASE, \
- CONFIG_MV64X60_NEW_BASE, \
- 0x00020000, _PAGE_IO);
-}
-#endif
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- parse_bootinfo(find_bootinfo());
-
- /* ASSUMPTION: If both r3 (bd_t pointer) and r6 (cmdline pointer)
- * are non-zero, then we should use the board info from the bd_t
- * structure and the cmdline pointed to by r6 instead of the
- * information from birecs, if any. Otherwise, use the information
- * from birecs as discovered by the preceding call to
- * parse_bootinfo(). This rule should work with both PPCBoot, which
- * uses a bd_t board info structure, and the kernel boot wrapper,
- * which uses birecs.
- */
- if (r3 && r6) {
- /* copy board info structure */
- memcpy( (void *)__res,(void *)(r3+KERNELBASE), sizeof(bd_t) );
- /* copy command line */
- *(char *)(r7+KERNELBASE) = 0;
- strcpy(cmd_line, (char *)(r6+KERNELBASE));
- }
- #ifdef CONFIG_ISA
- isa_mem_base = 0;
- #endif
-
- ppc_md.setup_arch = ev64360_setup_arch;
- ppc_md.show_cpuinfo = ev64360_show_cpuinfo;
- ppc_md.init_IRQ = mv64360_init_irq;
- ppc_md.get_irq = mv64360_get_irq;
- ppc_md.restart = ev64360_restart;
- ppc_md.power_off = ev64360_power_off;
- ppc_md.halt = ev64360_halt;
- ppc_md.find_end_of_memory = ev64360_find_end_of_memory;
- ppc_md.init = NULL;
-
- ppc_md.time_init = todc_time_init;
- ppc_md.set_rtc_time = todc_set_rtc_time;
- ppc_md.get_rtc_time = todc_get_rtc_time;
- ppc_md.nvram_read_val = todc_direct_read_val;
- ppc_md.nvram_write_val = todc_direct_write_val;
- ppc_md.calibrate_decr = ev64360_calibrate_decr;
-
-#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE)
- ppc_md.setup_io_mappings = ev64360_map_io;
- ppc_md.progress = mv64x60_mpsc_progress;
- mv64x60_progress_init(CONFIG_MV64X60_NEW_BASE);
-#endif
-
-#if defined(CONFIG_SERIAL_MPSC) || defined(CONFIG_MV643XX_ETH)
- platform_notify = ev64360_platform_notify;
-#endif
-
- ev64360_set_bat(); /* Need for ev64360_find_end_of_memory and progress */
-}