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

   1/*
   2 * linux/arch/arm/mach-sa1100/cerf.c
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 as
   6 * published by the Free Software Foundation.
   7 *
   8 * Apr-2003 : Removed some old PDA crud [FB]
   9 * Oct-2003 : Added uart2 resource [FB]
  10 * Jan-2004 : Removed io map for flash [FB]
  11 */
  12
  13#include <linux/init.h>
  14#include <linux/kernel.h>
  15#include <linux/tty.h>
  16#include <linux/platform_data/sa11x0-serial.h>
  17#include <linux/platform_device.h>
  18#include <linux/irq.h>
  19#include <linux/mtd/mtd.h>
  20#include <linux/mtd/partitions.h>
  21#include <linux/gpio.h>
  22#include <linux/leds.h>
  23
  24#include <mach/hardware.h>
  25#include <asm/setup.h>
  26
  27#include <asm/mach-types.h>
  28#include <asm/mach/arch.h>
  29#include <asm/mach/flash.h>
  30#include <asm/mach/map.h>
  31
  32#include <mach/cerf.h>
  33#include <linux/platform_data/mfd-mcp-sa11x0.h>
  34#include <mach/irqs.h>
  35#include "generic.h"
  36
  37static struct resource cerfuart2_resources[] = {
  38        [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
  39};
  40
  41static struct platform_device cerfuart2_device = {
  42        .name           = "sa11x0-uart",
  43        .id             = 2,
  44        .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  45        .resource       = cerfuart2_resources,
  46};
  47
  48/* LEDs */
  49struct gpio_led cerf_gpio_leds[] = {
  50        {
  51                .name                   = "cerf:d0",
  52                .default_trigger        = "heartbeat",
  53                .gpio                   = 0,
  54        },
  55        {
  56                .name                   = "cerf:d1",
  57                .default_trigger        = "cpu0",
  58                .gpio                   = 1,
  59        },
  60        {
  61                .name                   = "cerf:d2",
  62                .default_trigger        = "default-on",
  63                .gpio                   = 2,
  64        },
  65        {
  66                .name                   = "cerf:d3",
  67                .default_trigger        = "default-on",
  68                .gpio                   = 3,
  69        },
  70
  71};
  72
  73static struct gpio_led_platform_data cerf_gpio_led_info = {
  74        .leds           = cerf_gpio_leds,
  75        .num_leds       = ARRAY_SIZE(cerf_gpio_leds),
  76};
  77
  78static struct platform_device cerf_leds = {
  79        .name   = "leds-gpio",
  80        .id     = -1,
  81        .dev    = {
  82                .platform_data  = &cerf_gpio_led_info,
  83        }
  84};
  85
  86
  87static struct platform_device *cerf_devices[] __initdata = {
  88        &cerfuart2_device,
  89        &cerf_leds,
  90};
  91
  92#ifdef CONFIG_SA1100_CERF_FLASH_32MB
  93#  define CERF_FLASH_SIZE       0x02000000
  94#elif defined CONFIG_SA1100_CERF_FLASH_16MB
  95#  define CERF_FLASH_SIZE       0x01000000
  96#elif defined CONFIG_SA1100_CERF_FLASH_8MB
  97#  define CERF_FLASH_SIZE       0x00800000
  98#else
  99#  error "Undefined flash size for CERF"
 100#endif
 101
 102static struct mtd_partition cerf_partitions[] = {
 103        {
 104                .name           = "Bootloader",
 105                .size           = 0x00020000,
 106                .offset         = 0x00000000,
 107        }, {
 108                .name           = "Params",
 109                .size           = 0x00040000,
 110                .offset         = 0x00020000,
 111        }, {
 112                .name           = "Kernel",
 113                .size           = 0x00100000,
 114                .offset         = 0x00060000,
 115        }, {
 116                .name           = "Filesystem",
 117                .size           = CERF_FLASH_SIZE-0x00160000,
 118                .offset         = 0x00160000,
 119        }
 120};
 121
 122static struct flash_platform_data cerf_flash_data = {
 123        .map_name       = "cfi_probe",
 124        .parts          = cerf_partitions,
 125        .nr_parts       = ARRAY_SIZE(cerf_partitions),
 126};
 127
 128static struct resource cerf_flash_resource =
 129        DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
 130
 131static void __init cerf_init_irq(void)
 132{
 133        sa1100_init_irq();
 134        irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
 135}
 136
 137static struct map_desc cerf_io_desc[] __initdata = {
 138        {       /* Crystal Ethernet Chip */
 139                .virtual        =  0xf0000000,
 140                .pfn            = __phys_to_pfn(0x08000000),
 141                .length         = 0x00100000,
 142                .type           = MT_DEVICE
 143        }
 144};
 145
 146static void __init cerf_map_io(void)
 147{
 148        sa1100_map_io();
 149        iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
 150
 151        sa1100_register_uart(0, 3);
 152        sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
 153        sa1100_register_uart(2, 1);
 154
 155        /* set some GPDR bits here while it's safe */
 156        GPDR |= CERF_GPIO_CF_RESET;
 157}
 158
 159static struct mcp_plat_data cerf_mcp_data = {
 160        .mccr0          = MCCR0_ADM,
 161        .sclk_rate      = 11981000,
 162};
 163
 164static void __init cerf_init(void)
 165{
 166        sa11x0_ppc_configure_mcp();
 167        platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 168        sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
 169        sa11x0_register_mcp(&cerf_mcp_data);
 170}
 171
 172MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 173        /* Maintainer: support@intrinsyc.com */
 174        .map_io         = cerf_map_io,
 175        .nr_irqs        = SA1100_NR_IRQS,
 176        .init_irq       = cerf_init_irq,
 177        .init_time      = sa1100_timer_init,
 178        .init_machine   = cerf_init,
 179        .init_late      = sa11x0_init_late,
 180        .restart        = sa11x0_restart,
 181MACHINE_END
 182