kernel/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/platform_data/sa11x0-serial.h>
   9 #include <linux/tty.h>
  10 #include <linux/mtd/mtd.h>
  11 #include <linux/mtd/partitions.h>
  12
  13 #include <video/sa1100fb.h>
  14
  15 #include <mach/hardware.h>
  16 #include <asm/mach-types.h>
  17 #include <asm/setup.h>
  18
  19 #include <asm/mach/arch.h>
  20 #include <asm/mach/flash.h>
  21 #include <asm/mach/map.h>
  22 #include <linux/platform_data/mfd-mcp-sa11x0.h>
  23 #include <mach/shannon.h>
  24 #include <mach/irqs.h>
  25
  26 #include "generic.h"
  27
  28 static struct mtd_partition shannon_partitions[] = {
  29         {
  30                 .name           = "BLOB boot loader",
  31                 .offset         = 0,
  32                 .size           = 0x20000
  33         },
  34         {
  35                 .name           = "kernel",
  36                 .offset         = MTDPART_OFS_APPEND,
  37                 .size           = 0xe0000
  38         },
  39         {
  40                 .name           = "initrd",
  41                 .offset         = MTDPART_OFS_APPEND,
  42                 .size           = MTDPART_SIZ_FULL
  43         }
  44 };
  45
  46 static struct flash_platform_data shannon_flash_data = {
  47         .map_name       = "cfi_probe",
  48         .parts          = shannon_partitions,
  49         .nr_parts       = ARRAY_SIZE(shannon_partitions),
  50 };
  51
  52 static struct resource shannon_flash_resource =
  53         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
  54
  55 static struct mcp_plat_data shannon_mcp_data = {
  56         .mccr0          = MCCR0_ADM,
  57         .sclk_rate      = 11981000,
  58 };
  59
  60 static struct sa1100fb_mach_info shannon_lcd_info = {
  61         .pixclock       = 152500,       .bpp            = 8,
  62         .xres           = 640,          .yres           = 480,
  63
  64         .hsync_len      = 4,            .vsync_len      = 3,
  65         .left_margin    = 2,            .upper_margin   = 0,
  66         .right_margin   = 1,            .lower_margin   = 0,
  67
  68         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  69
  70         .lccr0          = LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
  71         .lccr3          = LCCR3_ACBsDiv(512),
  72 };
  73
  74 static void __init shannon_init(void)
  75 {
  76         sa11x0_ppc_configure_mcp();
  77         sa11x0_register_lcd(&shannon_lcd_info);
  78         sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
  79         sa11x0_register_mcp(&shannon_mcp_data);
  80 }
  81
  82 static void __init shannon_map_io(void)
  83 {
  84         sa1100_map_io();
  85
  86         sa1100_register_uart(0, 3);
  87         sa1100_register_uart(1, 1);
  88
  89         Ser1SDCR0 |= SDCR0_SUS;
  90         GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
  91         GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
  92         GPDR &= ~GPIO_UART_RXD;
  93         PPAR |= PPAR_UPR;
  94
  95         /* reset the codec */
  96         GPCR = SHANNON_GPIO_CODEC_RESET;
  97         GPSR = SHANNON_GPIO_CODEC_RESET;
  98 }
  99
 100 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
 101         .atag_offset    = 0x100,
 102         .map_io         = shannon_map_io,
 103         .nr_irqs        = SA1100_NR_IRQS,
 104         .init_irq       = sa1100_init_irq,
 105         .init_time      = sa1100_timer_init,
 106         .init_machine   = shannon_init,
 107         .init_late      = sa11x0_init_late,
 108         .restart        = sa11x0_restart,
 109 MACHINE_END