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realview_pb11mp.c

/*
 *  linux/arch/arm/mach-realview/realview_pb11mp.c
 *
 *  Copyright (C) 2008 ARM Limited
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *
 * 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
 */

#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/amba/bus.h>

#include <mach/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/leds.h>
#include <asm/mach-types.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/icst307.h>
#include <asm/hardware/cache-l2x0.h>

#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/mmc.h>
#include <asm/mach/time.h>

#include <mach/board-pb11mp.h>
#include <mach/irqs.h>

#include "core.h"
#include "clock.h"

static struct map_desc realview_pb11mp_io_desc[] __initdata = {
      {
            .virtual    = IO_ADDRESS(REALVIEW_SYS_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_SYS_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_PB11MP_GIC_CPU_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_TC11MP_GIC_CPU_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_TC11MP_GIC_CPU_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_TC11MP_GIC_DIST_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_TC11MP_GIC_DIST_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_SCTL_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_SCTL_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_PB11MP_TIMER0_1_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      }, {
            .virtual    = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE),
            .length           = SZ_8K,
            .type       = MT_DEVICE,
      },
#ifdef CONFIG_DEBUG_LL
      {
            .virtual    = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE),
            .pfn        = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE),
            .length           = SZ_4K,
            .type       = MT_DEVICE,
      },
#endif
};

static void __init realview_pb11mp_map_io(void)
{
      iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_io_desc));
}

/*
 * RealView PB11MPCore AMBA devices
 */

#define GPIO2_IRQ       { IRQ_PB11MP_GPIO2, NO_IRQ }
#define GPIO2_DMA       { 0, 0 }
#define GPIO3_IRQ       { IRQ_PB11MP_GPIO3, NO_IRQ }
#define GPIO3_DMA       { 0, 0 }
#define AACI_IRQ        { IRQ_TC11MP_AACI, NO_IRQ }
#define AACI_DMA        { 0x80, 0x81 }
#define MMCI0_IRQ       { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
#define MMCI0_DMA       { 0x84, 0 }
#define KMI0_IRQ        { IRQ_TC11MP_KMI0, NO_IRQ }
#define KMI0_DMA        { 0, 0 }
#define KMI1_IRQ        { IRQ_TC11MP_KMI1, NO_IRQ }
#define KMI1_DMA        { 0, 0 }
#define PB11MP_SMC_IRQ        { NO_IRQ, NO_IRQ }
#define PB11MP_SMC_DMA        { 0, 0 }
#define MPMC_IRQ        { NO_IRQ, NO_IRQ }
#define MPMC_DMA        { 0, 0 }
#define PB11MP_CLCD_IRQ       { IRQ_PB11MP_CLCD, NO_IRQ }
#define PB11MP_CLCD_DMA       { 0, 0 }
#define DMAC_IRQ        { IRQ_PB11MP_DMAC, NO_IRQ }
#define DMAC_DMA        { 0, 0 }
#define SCTL_IRQ        { NO_IRQ, NO_IRQ }
#define SCTL_DMA        { 0, 0 }
#define PB11MP_WATCHDOG_IRQ   { IRQ_PB11MP_WATCHDOG, NO_IRQ }
#define PB11MP_WATCHDOG_DMA   { 0, 0 }
#define PB11MP_GPIO0_IRQ      { IRQ_PB11MP_GPIO0, NO_IRQ }
#define PB11MP_GPIO0_DMA      { 0, 0 }
#define GPIO1_IRQ       { IRQ_PB11MP_GPIO1, NO_IRQ }
#define GPIO1_DMA       { 0, 0 }
#define PB11MP_RTC_IRQ        { IRQ_TC11MP_RTC, NO_IRQ }
#define PB11MP_RTC_DMA        { 0, 0 }
#define SCI_IRQ               { IRQ_PB11MP_SCI, NO_IRQ }
#define SCI_DMA               { 7, 6 }
#define PB11MP_UART0_IRQ      { IRQ_TC11MP_UART0, NO_IRQ }
#define PB11MP_UART0_DMA      { 15, 14 }
#define PB11MP_UART1_IRQ      { IRQ_TC11MP_UART1, NO_IRQ }
#define PB11MP_UART1_DMA      { 13, 12 }
#define PB11MP_UART2_IRQ      { IRQ_PB11MP_UART2, NO_IRQ }
#define PB11MP_UART2_DMA      { 11, 10 }
#define PB11MP_UART3_IRQ      { IRQ_PB11MP_UART3, NO_IRQ }
#define PB11MP_UART3_DMA      { 0x86, 0x87 }
#define PB11MP_SSP_IRQ        { IRQ_PB11MP_SSP, NO_IRQ }
#define PB11MP_SSP_DMA        { 9, 8 }

/* FPGA Primecells */
AMBA_DEVICE(aaci, "fpga:04",  AACI,       NULL);
AMBA_DEVICE(mmc0, "fpga:05",  MMCI0,            &realview_mmc0_plat_data);
AMBA_DEVICE(kmi0, "fpga:06",  KMI0,       NULL);
AMBA_DEVICE(kmi1, "fpga:07",  KMI1,       NULL);
AMBA_DEVICE(uart3,      "fpga:09",  PB11MP_UART3,     NULL);

/* DevChip Primecells */
AMBA_DEVICE(smc,  "dev:00",   PB11MP_SMC, NULL);
AMBA_DEVICE(sctl, "dev:e0",   SCTL,       NULL);
AMBA_DEVICE(wdog, "dev:e1",   PB11MP_WATCHDOG, NULL);
AMBA_DEVICE(gpio0,      "dev:e4",   PB11MP_GPIO0,     NULL);
AMBA_DEVICE(gpio1,      "dev:e5",   GPIO1,            NULL);
AMBA_DEVICE(gpio2,      "dev:e6",   GPIO2,            NULL);
AMBA_DEVICE(rtc,  "dev:e8",   PB11MP_RTC, NULL);
AMBA_DEVICE(sci0, "dev:f0",   SCI,        NULL);
AMBA_DEVICE(uart0,      "dev:f1",   PB11MP_UART0,     NULL);
AMBA_DEVICE(uart1,      "dev:f2",   PB11MP_UART1,     NULL);
AMBA_DEVICE(uart2,      "dev:f3",   PB11MP_UART2,     NULL);
AMBA_DEVICE(ssp0, "dev:f4",   PB11MP_SSP, NULL);

/* Primecells on the NEC ISSP chip */
AMBA_DEVICE(clcd, "issp:20",  PB11MP_CLCD,      &clcd_plat_data);
AMBA_DEVICE(dmac, "issp:30",  DMAC,       NULL);

static struct amba_device *amba_devs[] __initdata = {
      &dmac_device,
      &uart0_device,
      &uart1_device,
      &uart2_device,
      &uart3_device,
      &smc_device,
      &clcd_device,
      &sctl_device,
      &wdog_device,
      &gpio0_device,
      &gpio1_device,
      &gpio2_device,
      &rtc_device,
      &sci0_device,
      &ssp0_device,
      &aaci_device,
      &mmc0_device,
      &kmi0_device,
      &kmi1_device,
};

/*
 * RealView PB11MPCore platform devices
 */
static struct resource realview_pb11mp_flash_resource[] = {
      [0] = {
            .start            = REALVIEW_PB11MP_FLASH0_BASE,
            .end        = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1,
            .flags            = IORESOURCE_MEM,
      },
      [1] = {
            .start            = REALVIEW_PB11MP_FLASH1_BASE,
            .end        = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1,
            .flags            = IORESOURCE_MEM,
      },
};

static struct resource realview_pb11mp_smsc911x_resources[] = {
      [0] = {
            .start            = REALVIEW_PB11MP_ETH_BASE,
            .end        = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1,
            .flags            = IORESOURCE_MEM,
      },
      [1] = {
            .start            = IRQ_TC11MP_ETH,
            .end        = IRQ_TC11MP_ETH,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device realview_pb11mp_smsc911x_device = {
      .name       = "smc911x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(realview_pb11mp_smsc911x_resources),
      .resource   = realview_pb11mp_smsc911x_resources,
};

struct resource realview_pb11mp_cf_resources[] = {
      [0] = {
            .start            = REALVIEW_PB11MP_CF_BASE,
            .end        = REALVIEW_PB11MP_CF_BASE + SZ_4K - 1,
            .flags            = IORESOURCE_MEM,
      },
      [1] = {
            .start            = REALVIEW_PB11MP_CF_MEM_BASE,
            .end        = REALVIEW_PB11MP_CF_MEM_BASE + SZ_4K - 1,
            .flags            = IORESOURCE_MEM,
      },
      [2] = {
            .start            = -1,       /* FIXME: Find correct irq */
            .end        = -1,
            .flags            = IORESOURCE_IRQ,
      },
};

struct platform_device realview_pb11mp_cf_device = {
      .name       = "compactflash",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(realview_pb11mp_cf_resources),
      .resource   = realview_pb11mp_cf_resources,
};

static void __init gic_init_irq(void)
{
      unsigned int pldctrl;

      /* new irq mode with no DCC */
      writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
      pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
      pldctrl |= 2 << 22;
      writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
      writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));

      /* ARM11MPCore test chip GIC, primary */
      gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
      gic_dist_init(0, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), 29);
      gic_cpu_init(0, gic_cpu_base_addr);

      /* board GIC, secondary */
      gic_dist_init(1, __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), IRQ_PB11MP_GIC_START);
      gic_cpu_init(1, __io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
      gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
}

static void __init realview_pb11mp_timer_init(void)
{
      timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
      timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
      timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
      timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;

#ifdef CONFIG_LOCAL_TIMERS
      twd_base_addr = __io_address(REALVIEW_TC11MP_TWD_BASE);
      twd_size = REALVIEW_TC11MP_TWD_SIZE;
#endif
      realview_timer_init(IRQ_TC11MP_TIMER0_1);
}

static struct sys_timer realview_pb11mp_timer = {
      .init       = realview_pb11mp_timer_init,
};

static void __init realview_pb11mp_init(void)
{
      int i;

#ifdef CONFIG_CACHE_L2X0
      /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
       * Bits:  .... ...0 0111 1001 0000 .... .... .... */
      l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
#endif

      clk_register(&realview_clcd_clk);

      realview_flash_register(realview_pb11mp_flash_resource,
                        ARRAY_SIZE(realview_pb11mp_flash_resource));
      platform_device_register(&realview_pb11mp_smsc911x_device);
      platform_device_register(&realview_i2c_device);
      platform_device_register(&realview_pb11mp_cf_device);

      for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
            struct amba_device *d = amba_devs[i];
            amba_device_register(d, &iomem_resource);
      }

#ifdef CONFIG_LEDS
      leds_event = realview_leds_event;
#endif
}

MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
      /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
      .phys_io    = REALVIEW_PB11MP_UART0_BASE,
      .io_pg_offst      = (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
      .boot_params      = 0x00000100,
      .map_io           = realview_pb11mp_map_io,
      .init_irq   = gic_init_irq,
      .timer            = &realview_pb11mp_timer,
      .init_machine     = realview_pb11mp_init,
MACHINE_END

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