arch/arm/mach-sa1100/shannon.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/shannon.c
   3  */
   4
   5 #include <linux/init.h>
   6 #include <linux/kernel.h>
   7 #include <linux/tty.h>
   8 #include <linux/mtd/mtd.h>
   9 #include <linux/mtd/partitions.h>
  10
  11 #include <asm/hardware.h>
  12 #include <asm/setup.h>
  13 #include <asm/irq.h>
  14
  15 #include <asm/mach/arch.h>
  16 #include <asm/mach/flash.h>
  17 #include <asm/mach/map.h>
  18 #include <asm/mach/serial_sa1100.h>
  19 #include <asm/arch/shannon.h>
  20
  21 #include "generic.h"
  22
  23 static struct mtd_partition shannon_partitions[] = {
  24         {
  25                 .name           = "BLOB boot loader",
  26                 .offset         = 0,
  27                 .size           = 0x20000
  28         },
  29         {
  30                 .name           = "kernel",
  31                 .offset         = MTDPART_OFS_APPEND,
  32                 .size           = 0xe0000
  33         },
  34         {
  35                 .name           = "initrd",
  36                 .offset         = MTDPART_OFS_APPEND,
  37                 .size           = MTDPART_SIZ_FULL
  38         }
  39 };
  40
  41 static struct flash_platform_data shannon_flash_data = {
  42         .map_name       = "cfi_probe",
  43         .parts          = shannon_partitions,
  44         .nr_parts       = ARRAY_SIZE(shannon_partitions),
  45 };
  46
  47 static struct resource shannon_flash_resource = {
  48         .start          = SA1100_CS0_PHYS,
  49         .end            = SA1100_CS0_PHYS + SZ_4M - 1,
  50         .flags          = IORESOURCE_MEM,
  51 };
  52
  53 static void __init shannon_init(void)
  54 {
  55         sa11x0_set_flash_data(&shannon_flash_data, shannon_flash_resource, 1);
  56 }
  57
  58 static void __init shannon_map_io(void)
  59 {
  60         sa1100_map_io();
  61
  62         sa1100_register_uart(0, 3);
  63         sa1100_register_uart(1, 1);
  64
  65         Ser1SDCR0 |= SDCR0_SUS;
  66         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
  67         GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
  68         GPDR &= ~GPIO_UART_RXD;
  69         PPAR |= PPAR_UPR;
  70
  71         /* reset the codec */
  72         GPCR = SHANNON_GPIO_CODEC_RESET;
  73         GPSR = SHANNON_GPIO_CODEC_RESET;
  74 }
  75
  76 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
  77         BOOT_MEM(0xc0000000, 0x80000000, 0xf8000000)
  78         BOOT_PARAMS(0xc0000100)
  79         MAPIO(shannon_map_io)
  80         INITIRQ(sa1100_init_irq)
  81         .timer          = &sa1100_timer,
  82         .init_machine   = shannon_init,
  83 MACHINE_END