Logo Search packages:      
Sourcecode: linux version File versions

pleb.c

/*
 * linux/arch/arm/mach-sa1100/pleb.c
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/mtd/partitions.h>

#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/mach/serial_sa1100.h>
#include <mach/irqs.h>

#include "generic.h"


/*
 * Ethernet IRQ mappings
 */

#define PLEB_ETH0_P           (0x20000300)      /* Ethernet 0 in PCMCIA0 IO */
#define PLEB_ETH0_V           (0xf6000300)

#define GPIO_ETH0_IRQ         GPIO_GPIO(21)
#define GPIO_ETH0_EN          GPIO_GPIO(26)

#define IRQ_GPIO_ETH0_IRQ     IRQ_GPIO21

static struct resource smc91x_resources[] = {
      [0] = {
            .start      = PLEB_ETH0_P,
            .end  = PLEB_ETH0_P | 0x03ffffff,
            .flags      = IORESOURCE_MEM,
      },
#if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
      [1] = {
            .start      = IRQ_GPIO_ETH0_IRQ,
            .end  = IRQ_GPIO_ETH0_IRQ,
            .flags      = IORESOURCE_IRQ,
      },
#endif
};


static struct platform_device smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(smc91x_resources),
      .resource   = smc91x_resources,
};

static struct platform_device *devices[] __initdata = {
      &smc91x_device,
};


/*
 * Pleb's memory map
 * has flash memory (typically 4 or 8 meg) selected by
 * the two SA1100 lowest chip select outputs.
 */
static struct resource pleb_flash_resources[] = {
      [0] = {
            .start = SA1100_CS0_PHYS,
            .end   = SA1100_CS0_PHYS + SZ_8M - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = SA1100_CS1_PHYS,
            .end   = SA1100_CS1_PHYS + SZ_8M - 1,
            .flags = IORESOURCE_MEM,
      }
};


static struct mtd_partition pleb_partitions[] = {
      {
            .name       = "blob",
            .offset           = 0,
            .size       = 0x00020000,
      }, {
            .name       = "kernel",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 0x000e0000,
      }, {
            .name       = "rootfs",
            .offset           = MTDPART_OFS_APPEND,
            .size       = 0x00300000,
      }
};


static struct flash_platform_data pleb_flash_data = {
      .map_name = "cfi_probe",
      .parts = pleb_partitions,
      .nr_parts = ARRAY_SIZE(pleb_partitions),
};


static void __init pleb_init(void)
{
      sa11x0_set_flash_data(&pleb_flash_data, pleb_flash_resources,
                        ARRAY_SIZE(pleb_flash_resources));


      platform_add_devices(devices, ARRAY_SIZE(devices));
}


static void __init pleb_map_io(void)
{
      sa1100_map_io();

      sa1100_register_uart(0, 3);
        sa1100_register_uart(1, 1);

        GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
        GPDR |= GPIO_UART_TXD;
        GPDR &= ~GPIO_UART_RXD;
        PPAR |= PPAR_UPR;

      /*
       * Fix expansion memory timing for network card
       */
      MECR = ((2<<10) | (2<<5) | (2<<0));

      /*
       * Enable the SMC ethernet controller
       */
      GPDR |= GPIO_ETH0_EN;   /* set to output */
      GPCR  = GPIO_ETH0_EN;   /* clear MCLK (enable smc) */

      GPDR &= ~GPIO_ETH0_IRQ;

      set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
}

MACHINE_START(PLEB, "PLEB")
      .phys_io    = 0x80000000,
      .io_pg_offst      = ((0xf8000000) >> 18) & 0xfffc,
      .map_io           = pleb_map_io,
      .init_irq   = sa1100_init_irq,
      .timer            = &sa1100_timer,
      .init_machine   = pleb_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index