arch/arm/mach-sa1100/cerf.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/cerf.c
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * Apr-2003 : Removed some old PDA crud [FB]
   9  * Oct-2003 : Added uart2 resource [FB]
  10  * Jan-2004 : Removed io map for flash [FB]
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/kernel.h>
  15 #include <linux/tty.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/irq.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/partitions.h>
  20
  21 #include <asm/irq.h>
  22 #include <mach/hardware.h>
  23 #include <asm/setup.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/flash.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/serial_sa1100.h>
  30
  31 #include <mach/cerf.h>
  32 #include <mach/mcp.h>
  33 #include "generic.h"
  34
  35 static struct resource cerfuart2_resources[] = {
  36         [0] = {
  37                 .start  = 0x80030000,
  38                 .end    = 0x8003ffff,
  39                 .flags  = IORESOURCE_MEM,
  40         },
  41 };
  42
  43 static struct platform_device cerfuart2_device = {
  44         .name           = "sa11x0-uart",
  45         .id             = 2,
  46         .num_resources  = ARRAY_SIZE(cerfuart2_resources),
  47         .resource       = cerfuart2_resources,
  48 };
  49
  50 static struct platform_device *cerf_devices[] __initdata = {
  51         &cerfuart2_device,
  52 };
  53
  54 #ifdef CONFIG_SA1100_CERF_FLASH_32MB
  55 #  define CERF_FLASH_SIZE       0x02000000
  56 #elif defined CONFIG_SA1100_CERF_FLASH_16MB
  57 #  define CERF_FLASH_SIZE       0x01000000
  58 #elif defined CONFIG_SA1100_CERF_FLASH_8MB
  59 #  define CERF_FLASH_SIZE       0x00800000
  60 #else
  61 #  error "Undefined flash size for CERF"
  62 #endif
  63
  64 static struct mtd_partition cerf_partitions[] = {
  65         {
  66                 .name           = "Bootloader",
  67                 .size           = 0x00020000,
  68                 .offset         = 0x00000000,
  69         }, {
  70                 .name           = "Params",
  71                 .size           = 0x00040000,
  72                 .offset         = 0x00020000,
  73         }, {
  74                 .name           = "Kernel",
  75                 .size           = 0x00100000,
  76                 .offset         = 0x00060000,
  77         }, {
  78                 .name           = "Filesystem",
  79                 .size           = CERF_FLASH_SIZE-0x00160000,
  80                 .offset         = 0x00160000,
  81         }
  82 };
  83
  84 static struct flash_platform_data cerf_flash_data = {
  85         .map_name       = "cfi_probe",
  86         .parts          = cerf_partitions,
  87         .nr_parts       = ARRAY_SIZE(cerf_partitions),
  88 };
  89
  90 static struct resource cerf_flash_resource = {
  91         .start          = SA1100_CS0_PHYS,
  92         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
  93         .flags          = IORESOURCE_MEM,
  94 };
  95
  96 static void __init cerf_init_irq(void)
  97 {
  98         sa1100_init_irq();
  99         irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
 100 }
 101
 102 static struct map_desc cerf_io_desc[] __initdata = {
 103         {       /* Crystal Ethernet Chip */
 104                 .virtual        =  0xf0000000,
 105                 .pfn            = __phys_to_pfn(0x08000000),
 106                 .length         = 0x00100000,
 107                 .type           = MT_DEVICE
 108         }
 109 };
 110
 111 static void __init cerf_map_io(void)
 112 {
 113         sa1100_map_io();
 114         iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
 115
 116         sa1100_register_uart(0, 3);
 117         sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
 118         sa1100_register_uart(2, 1);
 119
 120         /* set some GPDR bits here while it's safe */
 121         GPDR |= CERF_GPIO_CF_RESET;
 122 }
 123
 124 static struct mcp_plat_data cerf_mcp_data = {
 125         .mccr0          = MCCR0_ADM,
 126         .sclk_rate      = 11981000,
 127 };
 128
 129 static void __init cerf_init(void)
 130 {
 131         platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 132         sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
 133         sa11x0_register_mcp(&cerf_mcp_data);
 134 }
 135
 136 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 137         /* Maintainer: support@intrinsyc.com */
 138         .map_io         = cerf_map_io,
 139         .init_irq       = cerf_init_irq,
 140         .timer          = &sa1100_timer,
 141         .init_machine   = cerf_init,
 142 MACHINE_END