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/mcp.h>
  22 #include <asm/arch/shannon.h>
  23
  24 #include "generic.h"
  25
  26 static struct mtd_partition shannon_partitions[] = {
  27         {
  28                 .name           = "BLOB boot loader",
  29                 .offset         = 0,
  30                 .size           = 0x20000
  31         },
  32         {
  33                 .name           = "kernel",
  34                 .offset         = MTDPART_OFS_APPEND,
  35                 .size           = 0xe0000
  36         },
  37         {
  38                 .name           = "initrd",
  39                 .offset         = MTDPART_OFS_APPEND,
  40                 .size           = MTDPART_SIZ_FULL
  41         }
  42 };
  43
  44 static struct flash_platform_data shannon_flash_data = {
  45         .map_name       = "cfi_probe",
  46         .parts          = shannon_partitions,
  47         .nr_parts       = ARRAY_SIZE(shannon_partitions),
  48 };
  49
  50 static struct resource shannon_flash_resource = {
  51         .start          = SA1100_CS0_PHYS,
  52         .end            = SA1100_CS0_PHYS + SZ_4M - 1,
  53         .flags          = IORESOURCE_MEM,
  54 };
  55
  56 static struct mcp_plat_data shannon_mcp_data = {
  57         .mccr0          = MCCR0_ADM,
  58         .sclk_rate      = 11981000,
  59 };
  60
  61 static void __init shannon_init(void)
  62 {
  63         sa11x0_set_flash_data(&shannon_flash_data, &shannon_flash_resource, 1);
  64         sa11x0_set_mcp_data(&shannon_mcp_data);
  65 }
  66
  67 static void __init shannon_map_io(void)
  68 {
  69         sa1100_map_io();
  70
  71         sa1100_register_uart(0, 3);
  72         sa1100_register_uart(1, 1);
  73
  74         Ser1SDCR0 |= SDCR0_SUS;
  75         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
  76         GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
  77         GPDR &= ~GPIO_UART_RXD;
  78         PPAR |= PPAR_UPR;
  79
  80         /* reset the codec */
  81         GPCR = SHANNON_GPIO_CODEC_RESET;
  82         GPSR = SHANNON_GPIO_CODEC_RESET;
  83 }
  84
  85 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
  86         .phys_io        = 0x80000000,
  87         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
  88         .boot_params    = 0xc0000100,
  89         .map_io         = shannon_map_io,
  90         .init_irq       = sa1100_init_irq,
  91         .timer          = &sa1100_timer,
  92         .init_machine   = shannon_init,
  93 MACHINE_END