Logo Search packages:      
Sourcecode: linux-2.6 version File versions

jornada720.c

/*
 * linux/arch/arm/mach-sa1100/jornada720.c
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <asm/hardware.h>
#include <asm/hardware/sa1111.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/setup.h>

#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>

#include "generic.h"


#define JORTUCR_VAL     0x20000400

static struct resource sa1111_resources[] = {
      [0] = {
            .start            = 0x40000000,
            .end        = 0x40001fff,
            .flags            = IORESOURCE_MEM,
      },
      [1] = {
            .start            = IRQ_GPIO1,
            .end        = IRQ_GPIO1,
            .flags            = IORESOURCE_IRQ,
      },
};

static u64 sa1111_dmamask = 0xffffffffUL;

static struct platform_device sa1111_device = {
      .name       = "sa1111",
      .id         = 0,
      .dev        = {
            .dma_mask = &sa1111_dmamask,
            .coherent_dma_mask = 0xffffffff,
      },
      .num_resources    = ARRAY_SIZE(sa1111_resources),
      .resource   = sa1111_resources,
};

static struct platform_device *devices[] __initdata = {
      &sa1111_device,
};

static int __init jornada720_init(void)
{
      int ret = -ENODEV;

      if (machine_is_jornada720()) {
            GPDR |= GPIO_GPIO20;
            TUCR = JORTUCR_VAL;     /* set the oscillator out to the SA-1101 */

            GPSR = GPIO_GPIO20;
            udelay(1);
            GPCR = GPIO_GPIO20;
            udelay(1);
            GPSR = GPIO_GPIO20;
            udelay(20);

            /* LDD4 is speaker, LDD3 is microphone */
            PPSR &= ~(PPC_LDD3 | PPC_LDD4);
            PPDR |= PPC_LDD3 | PPC_LDD4;

            ret = platform_add_devices(devices, ARRAY_SIZE(devices));
      }
      return ret;
}

arch_initcall(jornada720_init);

static struct map_desc jornada720_io_desc[] __initdata = {
      {     /* Epson registers */
            .virtual    =  0xf0000000,
            .pfn        = __phys_to_pfn(0x48000000),
            .length           = 0x00100000,
            .type       = MT_DEVICE
      }, {  /* Epson frame buffer */
            .virtual    =  0xf1000000,
            .pfn        = __phys_to_pfn(0x48200000),
            .length           = 0x00100000,
            .type       = MT_DEVICE
      }, {  /* SA-1111 */
            .virtual    =  0xf4000000,
            .pfn        = __phys_to_pfn(0x40000000),
            .length           = 0x00100000,
            .type       = MT_DEVICE
      }
};

static void __init jornada720_map_io(void)
{
      sa1100_map_io();
      iotable_init(jornada720_io_desc, ARRAY_SIZE(jornada720_io_desc));
      
      sa1100_register_uart(0, 3);
      sa1100_register_uart(1, 1);
}

static struct mtd_partition jornada720_partitions[] = {
      {
            .name       = "JORNADA720 boot firmware",
            .size       = 0x00040000,
            .offset           = 0,
            .mask_flags = MTD_WRITEABLE,  /* force read-only */
      }, {
            .name       = "JORNADA720 kernel",
            .size       = 0x000c0000,
            .offset           = 0x00040000,
      }, {
            .name       = "JORNADA720 params",
            .size       = 0x00040000,
            .offset           = 0x00100000,
      }, {
            .name       = "JORNADA720 initrd",
            .size       = 0x00100000,
            .offset           = 0x00140000,
      }, {
            .name       = "JORNADA720 root cramfs",
            .size       = 0x00300000,
            .offset           = 0x00240000,
      }, {
            .name       = "JORNADA720 usr cramfs",
            .size       = 0x00800000,
            .offset           = 0x00540000,
      }, {
            .name       = "JORNADA720 usr local",
            .size       = 0,  /* will expand to the end of the flash */
            .offset           = 0x00d00000,
      }
};

static void jornada720_set_vpp(int vpp)
{
      if (vpp)
            PPSR |= 0x80;
      else
            PPSR &= ~0x80;
      PPDR |= 0x80;
}

static struct flash_platform_data jornada720_flash_data = {
      .map_name   = "cfi_probe",
      .set_vpp    = jornada720_set_vpp,
      .parts            = jornada720_partitions,
      .nr_parts   = ARRAY_SIZE(jornada720_partitions),
};

static struct resource jornada720_flash_resource = {
      .start            = SA1100_CS0_PHYS,
      .end        = SA1100_CS0_PHYS + SZ_32M - 1,
      .flags            = IORESOURCE_MEM,
};

static void __init jornada720_mach_init(void)
{
      sa11x0_set_flash_data(&jornada720_flash_data, &jornada720_flash_resource, 1);
}

MACHINE_START(JORNADA720, "HP Jornada 720")
      /* Maintainer: Michael Gernoth <michael@gernoth.net> */
      .phys_io    = 0x80000000,
      .io_pg_offst      = ((0xf8000000) >> 18) & 0xfffc,
      .boot_params      = 0xc0000100,
      .map_io           = jornada720_map_io,
      .init_irq   = sa1100_init_irq,
      .timer            = &sa1100_timer,
      .init_machine     = jornada720_mach_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index