arch/arm/mach-sa1100/shannon.c

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