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/device.h>
   7 #include <linux/kernel.h>
   8 #include <linux/tty.h>
   9 #include <linux/mtd/mtd.h>
  10 #include <linux/mtd/partitions.h>
  11
  12 #include <video/sa1100fb.h>
  13
  14 #include <mach/hardware.h>
  15 #include <asm/mach-types.h>
  16 #include <asm/setup.h>
  17
  18 #include <asm/mach/arch.h>
  19 #include <asm/mach/flash.h>
  20 #include <asm/mach/map.h>
  21 #include <asm/mach/serial_sa1100.h>
  22 #include <mach/mcp.h>
  23 #include <mach/shannon.h>
  24
  25 #include "generic.h"
  26
  27 static struct mtd_partition shannon_partitions[] = {
  28         {
  29                 .name           = "BLOB boot loader",
  30                 .offset         = 0,
  31                 .size           = 0x20000
  32         },
  33         {
  34                 .name           = "kernel",
  35                 .offset         = MTDPART_OFS_APPEND,
  36                 .size           = 0xe0000
  37         },
  38         {
  39                 .name           = "initrd",
  40                 .offset         = MTDPART_OFS_APPEND,
  41                 .size           = MTDPART_SIZ_FULL
  42         }
  43 };
  44
  45 static struct flash_platform_data shannon_flash_data = {
  46         .map_name       = "cfi_probe",
  47         .parts          = shannon_partitions,
  48         .nr_parts       = ARRAY_SIZE(shannon_partitions),
  49 };
  50
  51 static struct resource shannon_flash_resource =
  52         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
  53
  54 static struct mcp_plat_data shannon_mcp_data = {
  55         .mccr0          = MCCR0_ADM,
  56         .sclk_rate      = 11981000,
  57 };
  58
  59 static struct sa1100fb_mach_info shannon_lcd_info = {
  60         .pixclock       = 152500,       .bpp            = 8,
  61         .xres           = 640,          .yres           = 480,
  62
  63         .hsync_len      = 4,            .vsync_len      = 3,
  64         .left_margin    = 2,            .upper_margin   = 0,
  65         .right_margin   = 1,            .lower_margin   = 0,
  66
  67         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  68
  69         .lccr0          = LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
  70         .lccr3          = LCCR3_ACBsDiv(512),
  71 };
  72
  73 static void __init shannon_init(void)
  74 {
  75         sa11x0_ppc_configure_mcp();
  76         sa11x0_register_lcd(&shannon_lcd_info);
  77         sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
  78         sa11x0_register_mcp(&shannon_mcp_data);
  79 }
  80
  81 static void __init shannon_map_io(void)
  82 {
  83         sa1100_map_io();
  84
  85         sa1100_register_uart(0, 3);
  86         sa1100_register_uart(1, 1);
  87
  88         Ser1SDCR0 |= SDCR0_SUS;
  89         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
  90         GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
  91         GPDR &= ~GPIO_UART_RXD;
  92         PPAR |= PPAR_UPR;
  93
  94         /* reset the codec */
  95         GPCR = SHANNON_GPIO_CODEC_RESET;
  96         GPSR = SHANNON_GPIO_CODEC_RESET;
  97 }
  98
  99 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
 100         .atag_offset    = 0x100,
 101         .map_io         = shannon_map_io,
 102         .init_irq       = sa1100_init_irq,
 103         .timer          = &sa1100_timer,
 104         .init_machine   = shannon_init,
 105         .restart        = sa11x0_restart,
 106 MACHINE_END