arch/arm/mach-sa1100/jornada720.c

   1 /*
   2  * linux/arch/arm/mach-sa1100/jornada720.c
   3  */
   4
   5 #include <linux/init.h>
   6 #include <linux/kernel.h>
   7 #include <linux/tty.h>
   8 #include <linux/delay.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/ioport.h>
  11 #include <linux/mtd/mtd.h>
  12 #include <linux/mtd/partitions.h>
  13
  14 #include <asm/hardware.h>
  15 #include <asm/hardware/sa1111.h>
  16 #include <asm/irq.h>
  17 #include <asm/mach-types.h>
  18 #include <asm/setup.h>
  19
  20 #include <asm/mach/arch.h>
  21 #include <asm/mach/flash.h>
  22 #include <asm/mach/map.h>
  23 #include <asm/mach/serial_sa1100.h>
  24
  25 #include "generic.h"
  26
  27
  28 #define JORTUCR_VAL     0x20000400
  29
  30 static struct resource sa1111_resources[] = {
  31         [0] = {
  32                 .start          = 0x40000000,
  33                 .end            = 0x40001fff,
  34                 .flags          = IORESOURCE_MEM,
  35         },
  36         [1] = {
  37                 .start          = IRQ_GPIO1,
  38                 .end            = IRQ_GPIO1,
  39                 .flags          = IORESOURCE_IRQ,
  40         },
  41 };
  42
  43 static u64 sa1111_dmamask = 0xffffffffUL;
  44
  45 static struct platform_device sa1111_device = {
  46         .name           = "sa1111",
  47         .id             = 0,
  48         .dev            = {
  49                 .dma_mask = &sa1111_dmamask,
  50                 .coherent_dma_mask = 0xffffffff,
  51         },
  52         .num_resources  = ARRAY_SIZE(sa1111_resources),
  53         .resource       = sa1111_resources,
  54 };
  55
  56 static struct platform_device *devices[] __initdata = {
  57         &sa1111_device,
  58 };
  59
  60 static int __init jornada720_init(void)
  61 {
  62         int ret = -ENODEV;
  63
  64         if (machine_is_jornada720()) {
  65                 GPDR |= GPIO_GPIO20;
  66                 TUCR = JORTUCR_VAL;     /* set the oscillator out to the SA-1101 */
  67
  68                 GPSR = GPIO_GPIO20;
  69                 udelay(1);
  70                 GPCR = GPIO_GPIO20;
  71                 udelay(1);
  72                 GPSR = GPIO_GPIO20;
  73                 udelay(20);
  74
  75                 /* LDD4 is speaker, LDD3 is microphone */
  76                 PPSR &= ~(PPC_LDD3 | PPC_LDD4);
  77                 PPDR |= PPC_LDD3 | PPC_LDD4;
  78
  79                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
  80         }
  81         return ret;
  82 }
  83
  84 arch_initcall(jornada720_init);
  85
  86 static struct map_desc jornada720_io_desc[] __initdata = {
  87         {       /* Epson registers */
  88                 .virtual        =  0xf0000000,
  89                 .pfn            = __phys_to_pfn(0x48000000),
  90                 .length         = 0x00100000,
  91                 .type           = MT_DEVICE
  92         }, {    /* Epson frame buffer */
  93                 .virtual        =  0xf1000000,
  94                 .pfn            = __phys_to_pfn(0x48200000),
  95                 .length         = 0x00100000,
  96                 .type           = MT_DEVICE
  97         }, {    /* SA-1111 */
  98                 .virtual        =  0xf4000000,
  99                 .pfn            = __phys_to_pfn(0x40000000),
 100                 .length         = 0x00100000,
 101                 .type           = MT_DEVICE
 102         }
 103 };
 104
 105 static void __init jornada720_map_io(void)
 106 {
 107         sa1100_map_io();
 108         iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
 109
 110         sa1100_register_uart(0, 3);
 111         sa1100_register_uart(1, 1);
 112 }
 113
 114 static struct mtd_partition jornada720_partitions[] = {
 115         {
 116                 .name           = "JORNADA720 boot firmware",
 117                 .size           = 0x00040000,
 118                 .offset         = 0,
 119                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
 120         }, {
 121                 .name           = "JORNADA720 kernel",
 122                 .size           = 0x000c0000,
 123                 .offset         = 0x00040000,
 124         }, {
 125                 .name           = "JORNADA720 params",
 126                 .size           = 0x00040000,
 127                 .offset         = 0x00100000,
 128         }, {
 129                 .name           = "JORNADA720 initrd",
 130                 .size           = 0x00100000,
 131                 .offset         = 0x00140000,
 132         }, {
 133                 .name           = "JORNADA720 root cramfs",
 134                 .size           = 0x00300000,
 135                 .offset         = 0x00240000,
 136         }, {
 137                 .name           = "JORNADA720 usr cramfs",
 138                 .size           = 0x00800000,
 139                 .offset         = 0x00540000,
 140         }, {
 141                 .name           = "JORNADA720 usr local",
 142                 .size           = 0,  /* will expand to the end of the flash */
 143                 .offset         = 0x00d00000,
 144         }
 145 };
 146
 147 static void jornada720_set_vpp(int vpp)
 148 {
 149         if (vpp)
 150                 PPSR |= 0x80;
 151         else
 152                 PPSR &= ~0x80;
 153         PPDR |= 0x80;
 154 }
 155
 156 static struct flash_platform_data jornada720_flash_data = {
 157         .map_name       = "cfi_probe",
 158         .set_vpp        = jornada720_set_vpp,
 159         .parts          = jornada720_partitions,
 160         .nr_parts       = ARRAY_SIZE(jornada720_partitions),
 161 };
 162
 163 static struct resource jornada720_flash_resource = {
 164         .start          = SA1100_CS0_PHYS,
 165         .end            = SA1100_CS0_PHYS + SZ_32M - 1,
 166         .flags          = IORESOURCE_MEM,
 167 };
 168
 169 static void __init jornada720_mach_init(void)
 170 {
 171         sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
 172 }
 173
 174 MACHINE_START(JORNADA720, "HP Jornada 720")
 175         /* Maintainer: Michael Gernoth <michael@gernoth.net> */
 176         .phys_io        = 0x80000000,
 177         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
 178         .boot_params    = 0xc0000100,
 179         .map_io         = jornada720_map_io,
 180         .init_irq       = sa1100_init_irq,
 181         .timer          = &sa1100_timer,
 182         .init_machine   = jornada720_mach_init,
 183 MACHINE_END