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common.c

/*
 * arch/arm/mach-loki/common.c
 *
 * Core functions for Marvell Loki (88RC8480) SoCs
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/mbus.h>
#include <linux/mv643xx_eth.h>
#include <asm/page.h>
#include <asm/timex.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/loki.h>
#include <plat/orion_nand.h>
#include <plat/time.h>
#include "common.h"

/*****************************************************************************
 * I/O Address Mapping
 ****************************************************************************/
static struct map_desc loki_io_desc[] __initdata = {
      {
            .virtual    = LOKI_REGS_VIRT_BASE,
            .pfn        = __phys_to_pfn(LOKI_REGS_PHYS_BASE),
            .length           = LOKI_REGS_SIZE,
            .type       = MT_DEVICE,
      },
};

void __init loki_map_io(void)
{
      iotable_init(loki_io_desc, ARRAY_SIZE(loki_io_desc));
}


/*****************************************************************************
 * GE0
 ****************************************************************************/
struct mv643xx_eth_shared_platform_data loki_ge0_shared_data = {
      .t_clk            = LOKI_TCLK,
      .dram       = &loki_mbus_dram_info,
};

static struct resource loki_ge0_shared_resources[] = {
      {
            .name = "ge0 base",
            .start      = GE0_PHYS_BASE + 0x2000,
            .end  = GE0_PHYS_BASE + 0x3fff,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device loki_ge0_shared = {
      .name       = MV643XX_ETH_SHARED_NAME,
      .id         = 0,
      .dev        = {
            .platform_data    = &loki_ge0_shared_data,
      },
      .num_resources    = 1,
      .resource   = loki_ge0_shared_resources,
};

static struct resource loki_ge0_resources[] = {
      {
            .name = "ge0 irq",
            .start      = IRQ_LOKI_GBE_A_INT,
            .end  = IRQ_LOKI_GBE_A_INT,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device loki_ge0 = {
      .name       = MV643XX_ETH_NAME,
      .id         = 0,
      .num_resources    = 1,
      .resource   = loki_ge0_resources,
};

void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
{
      eth_data->shared = &loki_ge0_shared;
      loki_ge0.dev.platform_data = eth_data;

      writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
      platform_device_register(&loki_ge0_shared);
      platform_device_register(&loki_ge0);
}


/*****************************************************************************
 * GE1
 ****************************************************************************/
struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
      .t_clk            = LOKI_TCLK,
      .dram       = &loki_mbus_dram_info,
};

static struct resource loki_ge1_shared_resources[] = {
      {
            .name = "ge1 base",
            .start      = GE1_PHYS_BASE + 0x2000,
            .end  = GE1_PHYS_BASE + 0x3fff,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device loki_ge1_shared = {
      .name       = MV643XX_ETH_SHARED_NAME,
      .id         = 1,
      .dev        = {
            .platform_data    = &loki_ge1_shared_data,
      },
      .num_resources    = 1,
      .resource   = loki_ge1_shared_resources,
};

static struct resource loki_ge1_resources[] = {
      {
            .name = "ge1 irq",
            .start      = IRQ_LOKI_GBE_B_INT,
            .end  = IRQ_LOKI_GBE_B_INT,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device loki_ge1 = {
      .name       = MV643XX_ETH_NAME,
      .id         = 1,
      .num_resources    = 1,
      .resource   = loki_ge1_resources,
};

void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
{
      eth_data->shared = &loki_ge1_shared;
      loki_ge1.dev.platform_data = eth_data;

      writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
      platform_device_register(&loki_ge1_shared);
      platform_device_register(&loki_ge1);
}


/*****************************************************************************
 * SAS/SATA
 ****************************************************************************/
static struct resource loki_sas_resources[] = {
      {
            .name = "mvsas0 mem",
            .start      = SAS0_PHYS_BASE,
            .end  = SAS0_PHYS_BASE + 0x01ff,
            .flags      = IORESOURCE_MEM,
      }, {
            .name = "mvsas0 irq",
            .start      = IRQ_LOKI_SAS_A,
            .end  = IRQ_LOKI_SAS_A,
            .flags      = IORESOURCE_IRQ,
      }, {
            .name = "mvsas1 mem",
            .start      = SAS1_PHYS_BASE,
            .end  = SAS1_PHYS_BASE + 0x01ff,
            .flags      = IORESOURCE_MEM,
      }, {
            .name = "mvsas1 irq",
            .start      = IRQ_LOKI_SAS_B,
            .end  = IRQ_LOKI_SAS_B,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device loki_sas = {
      .name       = "mvsas",
      .id         = 0,
      .dev        = {
            .coherent_dma_mask      = 0xffffffff,
      },
      .num_resources    = ARRAY_SIZE(loki_sas_resources),
      .resource   = loki_sas_resources,
};

void __init loki_sas_init(void)
{
      writel(0x8300f707, DDR_REG(0x1424));
      platform_device_register(&loki_sas);
}


/*****************************************************************************
 * UART0
 ****************************************************************************/
static struct plat_serial8250_port loki_uart0_data[] = {
      {
            .mapbase    = UART0_PHYS_BASE,
            .membase    = (char *)UART0_VIRT_BASE,
            .irq        = IRQ_LOKI_UART0,
            .flags            = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = LOKI_TCLK,
      }, {
      },
};

static struct resource loki_uart0_resources[] = {
      {
            .start            = UART0_PHYS_BASE,
            .end        = UART0_PHYS_BASE + 0xff,
            .flags            = IORESOURCE_MEM,
      }, {
            .start            = IRQ_LOKI_UART0,
            .end        = IRQ_LOKI_UART0,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device loki_uart0 = {
      .name             = "serial8250",
      .id               = 0,
      .dev              = {
            .platform_data    = loki_uart0_data,
      },
      .resource         = loki_uart0_resources,
      .num_resources          = ARRAY_SIZE(loki_uart0_resources),
};

void __init loki_uart0_init(void)
{
      platform_device_register(&loki_uart0);
}


/*****************************************************************************
 * UART1
 ****************************************************************************/
static struct plat_serial8250_port loki_uart1_data[] = {
      {
            .mapbase    = UART1_PHYS_BASE,
            .membase    = (char *)UART1_VIRT_BASE,
            .irq        = IRQ_LOKI_UART1,
            .flags            = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = LOKI_TCLK,
      }, {
      },
};

static struct resource loki_uart1_resources[] = {
      {
            .start            = UART1_PHYS_BASE,
            .end        = UART1_PHYS_BASE + 0xff,
            .flags            = IORESOURCE_MEM,
      }, {
            .start            = IRQ_LOKI_UART1,
            .end        = IRQ_LOKI_UART1,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device loki_uart1 = {
      .name             = "serial8250",
      .id               = 1,
      .dev              = {
            .platform_data    = loki_uart1_data,
      },
      .resource         = loki_uart1_resources,
      .num_resources          = ARRAY_SIZE(loki_uart1_resources),
};

void __init loki_uart1_init(void)
{
      platform_device_register(&loki_uart1);
}


/*****************************************************************************
 * Time handling
 ****************************************************************************/
static void loki_timer_init(void)
{
      orion_time_init(IRQ_LOKI_BRIDGE, LOKI_TCLK);
}

struct sys_timer loki_timer = {
      .init = loki_timer_init,
};


/*****************************************************************************
 * General
 ****************************************************************************/
void __init loki_init(void)
{
      printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);

      loki_setup_cpu_mbus();
}

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