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/gpio/machine.h>
  15 #include <linux/kernel.h>
  16 #include <linux/tty.h>
  17 #include <linux/platform_data/sa11x0-serial.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/irq.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/gpio.h>
  23 #include <linux/leds.h>
  24
  25 #include <mach/hardware.h>
  26 #include <asm/setup.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/flash.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <mach/cerf.h>
  34 #include <linux/platform_data/mfd-mcp-sa11x0.h>
  35 #include <mach/irqs.h>
  36 #include "generic.h"
  37
  38 static struct resource cerfuart2_resources[] = {
  39         [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
  40 };
  41
  42 static struct platform_device cerfuart2_device = {
  43         .name           = "sa11x0-uart",
  44         .id             = 2,
  45         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  46         .resource       = cerfuart2_resources,
  47 };
  48
  49 /* Compact Flash */
  50 static struct gpiod_lookup_table cerf_cf_gpio_table = {
  51         .dev_id = "sa11x0-pcmcia.1",
  52         .table = {
  53                 GPIO_LOOKUP("gpio", 19, "bvd2", GPIO_ACTIVE_HIGH),
  54                 GPIO_LOOKUP("gpio", 20, "bvd1", GPIO_ACTIVE_HIGH),
  55                 GPIO_LOOKUP("gpio", 21, "reset", GPIO_ACTIVE_HIGH),
  56                 GPIO_LOOKUP("gpio", 22, "ready", GPIO_ACTIVE_HIGH),
  57                 GPIO_LOOKUP("gpio", 23, "detect", GPIO_ACTIVE_LOW),
  58                 { },
  59         },
  60 };
  61
  62 /* LEDs */
  63 struct gpio_led cerf_gpio_leds[] = {
  64         {
  65                 .name                   = "cerf:d0",
  66                 .default_trigger        = "heartbeat",
  67                 .gpio                   = 0,
  68         },
  69         {
  70                 .name                   = "cerf:d1",
  71                 .default_trigger        = "cpu0",
  72                 .gpio                   = 1,
  73         },
  74         {
  75                 .name                   = "cerf:d2",
  76                 .default_trigger        = "default-on",
  77                 .gpio                   = 2,
  78         },
  79         {
  80                 .name                   = "cerf:d3",
  81                 .default_trigger        = "default-on",
  82                 .gpio                   = 3,
  83         },
  84
  85 };
  86
  87 static struct gpio_led_platform_data cerf_gpio_led_info = {
  88         .leds           = cerf_gpio_leds,
  89         .num_leds       = ARRAY_SIZE(cerf_gpio_leds),
  90 };
  91
  92 static struct platform_device cerf_leds = {
  93         .name   = "leds-gpio",
  94         .id     = -1,
  95         .dev    = {
  96                 .platform_data  = &cerf_gpio_led_info,
  97         }
  98 };
  99
 100
 101 static struct platform_device *cerf_devices[] __initdata = {
 102         &cerfuart2_device,
 103         &cerf_leds,
 104 };
 105
 106 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
 107 #  define CERF_FLASH_SIZE       0x02000000
 108 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
 109 #  define CERF_FLASH_SIZE       0x01000000
 110 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
 111 #  define CERF_FLASH_SIZE       0x00800000
 112 #else
 113 #  error "Undefined flash size for CERF"
 114 #endif
 115
 116 static struct mtd_partition cerf_partitions[] = {
 117         {
 118                 .name           = "Bootloader",
 119                 .size           = 0x00020000,
 120                 .offset         = 0x00000000,
 121         }, {
 122                 .name           = "Params",
 123                 .size           = 0x00040000,
 124                 .offset         = 0x00020000,
 125         }, {
 126                 .name           = "Kernel",
 127                 .size           = 0x00100000,
 128                 .offset         = 0x00060000,
 129         }, {
 130                 .name           = "Filesystem",
 131                 .size           = CERF_FLASH_SIZE-0x00160000,
 132                 .offset         = 0x00160000,
 133         }
 134 };
 135
 136 static struct flash_platform_data cerf_flash_data = {
 137         .map_name       = "cfi_probe",
 138         .parts          = cerf_partitions,
 139         .nr_parts       = ARRAY_SIZE(cerf_partitions),
 140 };
 141
 142 static struct resource cerf_flash_resource =
 143         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
 144
 145 static void __init cerf_init_irq(void)
 146 {
 147         sa1100_init_irq();
 148         irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
 149 }
 150
 151 static struct map_desc cerf_io_desc[] __initdata = {
 152         {       /* Crystal Ethernet Chip */
 153                 .virtual        =  0xf0000000,
 154                 .pfn            = __phys_to_pfn(0x08000000),
 155                 .length         = 0x00100000,
 156                 .type           = MT_DEVICE
 157         }
 158 };
 159
 160 static void __init cerf_map_io(void)
 161 {
 162         sa1100_map_io();
 163         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
 164
 165         sa1100_register_uart(0, 3);
 166         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
 167         sa1100_register_uart(2, 1);
 168 }
 169
 170 static struct mcp_plat_data cerf_mcp_data = {
 171         .mccr0          = MCCR0_ADM,
 172         .sclk_rate      = 11981000,
 173 };
 174
 175 static void __init cerf_init(void)
 176 {
 177         sa11x0_ppc_configure_mcp();
 178         platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 179         sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
 180         sa11x0_register_mcp(&cerf_mcp_data);
 181         sa11x0_register_pcmcia(1, &cerf_cf_gpio_table);
 182 }
 183
 184 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 185         /* Maintainer: support@intrinsyc.com */
 186         .map_io         = cerf_map_io,
 187         .nr_irqs        = SA1100_NR_IRQS,
 188         .init_irq       = cerf_init_irq,
 189         .init_time      = sa1100_timer_init,
 190         .init_machine   = cerf_init,
 191         .init_late      = sa11x0_init_late,
 192         .restart        = sa11x0_restart,
 193 MACHINE_END