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

   1/*
   2 * linux/arch/arm/mach-sa1100/pleb.c
   3 */
   4
   5#include <linux/init.h>
   6#include <linux/kernel.h>
   7#include <linux/tty.h>
   8#include <linux/ioport.h>
   9#include <linux/platform_data/sa11x0-serial.h>
  10#include <linux/platform_device.h>
  11#include <linux/irq.h>
  12#include <linux/io.h>
  13#include <linux/mtd/partitions.h>
  14
  15#include <mach/hardware.h>
  16#include <asm/setup.h>
  17#include <asm/mach-types.h>
  18
  19#include <asm/mach/arch.h>
  20#include <asm/mach/map.h>
  21#include <asm/mach/flash.h>
  22#include <mach/irqs.h>
  23
  24#include "generic.h"
  25
  26
  27/*
  28 * Ethernet IRQ mappings
  29 */
  30
  31#define PLEB_ETH0_P             (0x20000300)    /* Ethernet 0 in PCMCIA0 IO */
  32#define PLEB_ETH0_V             (0xf6000300)
  33
  34#define GPIO_ETH0_IRQ           GPIO_GPIO(21)
  35#define GPIO_ETH0_EN            GPIO_GPIO(26)
  36
  37#define IRQ_GPIO_ETH0_IRQ       IRQ_GPIO21
  38
  39static struct resource smc91x_resources[] = {
  40        [0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
  41#if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
  42        [1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
  43#endif
  44};
  45
  46
  47static struct platform_device smc91x_device = {
  48        .name           = "smc91x",
  49        .id             = 0,
  50        .num_resources  = ARRAY_SIZE(smc91x_resources),
  51        .resource       = smc91x_resources,
  52};
  53
  54static struct platform_device *devices[] __initdata = {
  55        &smc91x_device,
  56};
  57
  58
  59/*
  60 * Pleb's memory map
  61 * has flash memory (typically 4 or 8 meg) selected by
  62 * the two SA1100 lowest chip select outputs.
  63 */
  64static struct resource pleb_flash_resources[] = {
  65        [0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
  66        [1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
  67};
  68
  69
  70static struct mtd_partition pleb_partitions[] = {
  71        {
  72                .name           = "blob",
  73                .offset         = 0,
  74                .size           = 0x00020000,
  75        }, {
  76                .name           = "kernel",
  77                .offset         = MTDPART_OFS_APPEND,
  78                .size           = 0x000e0000,
  79        }, {
  80                .name           = "rootfs",
  81                .offset         = MTDPART_OFS_APPEND,
  82                .size           = 0x00300000,
  83        }
  84};
  85
  86
  87static struct flash_platform_data pleb_flash_data = {
  88        .map_name = "cfi_probe",
  89        .parts = pleb_partitions,
  90        .nr_parts = ARRAY_SIZE(pleb_partitions),
  91};
  92
  93
  94static void __init pleb_init(void)
  95{
  96        sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
  97                              ARRAY_SIZE(pleb_flash_resources));
  98
  99
 100        platform_add_devices(devices, ARRAY_SIZE(devices));
 101}
 102
 103
 104static void __init pleb_map_io(void)
 105{
 106        sa1100_map_io();
 107
 108        sa1100_register_uart(0, 3);
 109        sa1100_register_uart(1, 1);
 110
 111        GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
 112        GPDR |= GPIO_UART_TXD;
 113        GPDR &= ~GPIO_UART_RXD;
 114        PPAR |= PPAR_UPR;
 115
 116        /*
 117         * Fix expansion memory timing for network card
 118         */
 119        MECR = ((2<<10) | (2<<5) | (2<<0));
 120
 121        /*
 122         * Enable the SMC ethernet controller
 123         */
 124        GPDR |= GPIO_ETH0_EN;   /* set to output */
 125        GPCR  = GPIO_ETH0_EN;   /* clear MCLK (enable smc) */
 126
 127        GPDR &= ~GPIO_ETH0_IRQ;
 128
 129        irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
 130}
 131
 132MACHINE_START(PLEB, "PLEB")
 133        .map_io         = pleb_map_io,
 134        .nr_irqs        = SA1100_NR_IRQS,
 135        .init_irq       = sa1100_init_irq,
 136        .init_time      = sa1100_timer_init,
 137        .init_machine   = pleb_init,
 138        .init_late      = sa11x0_init_late,
 139        .restart        = sa11x0_restart,
 140MACHINE_END
 141