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/* vim:set shiftwidth=4 ts=4 et: */

/*

 * PXA255 Sharp Zaurus SL-6000 PDA platform

 *

 * Copyright (c) 2008 Dmitry Baryshkov

 *

 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>

 * This code is licensed under the GNU GPL v2.

 */

#include "hw.h"

#include "pxa.h"

#include "arm-misc.h"

#include "sysemu.h"

#include "sharpsl.h"

#include "pcmcia.h"

#include "block.h"

#include "boards.h"

#define TOSA_RAM    0x04000000

#define TOSA_ROM        0x00800000

#define TOSA_GPIO_nSD_DETECT        (9)

#define TOSA_GPIO_ON_RESET                (19)

#define TOSA_GPIO_CF_IRQ                (21)        /* CF slot0 Ready */

#define TOSA_GPIO_CF_CD                        (13)

#define TOSA_GPIO_JC_CF_IRQ                (36)        /* CF slot1 Ready */

#define TOSA_SCOOP_GPIO_BASE        0

#define TOSA_GPIO_IR_POWERDWN        (TOSA_SCOOP_GPIO_BASE + 2)

#define TOSA_GPIO_SD_WP                        (TOSA_SCOOP_GPIO_BASE + 3)

#define TOSA_GPIO_PWR_ON                (TOSA_SCOOP_GPIO_BASE + 4)

struct tc6393xb_s {

    target_phys_addr_t target_base;

};

static uint32_t tc6393xb_readb(void *opaque, target_phys_addr_t addr)

{

    return 3;

}

static void tc6393xb_writeb(void *opaque, target_phys_addr_t addr,

        uint32_t value)

{

}

static void tosa_tc6393xb_register(struct pxa2xx_state_s *cpu)

{

    int iomemtype;

    struct tc6393xb_s *s;

    CPUReadMemoryFunc *tc6393xb_readfn[] = {

        tc6393xb_readb,

        tc6393xb_readb,

        tc6393xb_readb,

    };

    CPUWriteMemoryFunc *tc6393xb_writefn[] = {

        tc6393xb_writeb,

        tc6393xb_writeb,

        tc6393xb_writeb,

    };

    s = (struct tc6393xb_s *) qemu_mallocz(sizeof(struct tc6393xb_s));

    s->target_base = 0x10000000;

    iomemtype = cpu_register_io_memory(0, tc6393xb_readfn,

                    tc6393xb_writefn, s);

    cpu_register_physical_memory(s->target_base, 0x200000, iomemtype);

}

static void tosa_microdrive_attach(struct pxa2xx_state_s *cpu)

{

    struct pcmcia_card_s *md;

    int index;

    BlockDriverState *bs;

    index = drive_get_index(IF_IDE, 0, 0);

    if (index == -1)

        return;

    bs = drives_table[index].bdrv;

    if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {

        md = dscm1xxxx_init(bs);

        pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);

    }

}

static void tosa_gpio_setup(struct pxa2xx_state_s *cpu,

                struct scoop_info_s *scp0,

                struct scoop_info_s *scp1)

{

    /* MMC/SD host */

    pxa2xx_mmci_handlers(cpu->mmc,

                    scoop_gpio_in_get(scp0)[TOSA_GPIO_SD_WP],

                    qemu_irq_invert(pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_nSD_DETECT]));

    /* Handle reset */

    pxa2xx_gpio_out_set(cpu->gpio, TOSA_GPIO_ON_RESET, cpu->reset);

    /* PCMCIA signals: card's IRQ and Card-Detect */

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_IRQ],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_CF_CD]);

    pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],

                        pxa2xx_gpio_in_get(cpu->gpio)[TOSA_GPIO_JC_CF_IRQ],

                        NULL);

}

static struct arm_boot_info tosa_binfo = {

    .loader_start = PXA2XX_SDRAM_BASE,

    .ram_size = 0x04000000,

};

static void tosa_init(ram_addr_t ram_size, int vga_ram_size,

                const char *boot_device, DisplayState *ds,

                const char *kernel_filename, const char *kernel_cmdline,

                const char *initrd_filename, const char *cpu_model)

{

    struct pxa2xx_state_s *cpu;

    struct scoop_info_s *scp0, *scp1;

    if (ram_size < (TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE)) {

        fprintf(stderr, "This platform requires %i bytes of memory\n",

                TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE);

        exit(1);

    }

    if (!cpu_model)

        cpu_model = "pxa255";

    cpu = pxa255_init(tosa_binfo.ram_size, ds);

    cpu_register_physical_memory(0, TOSA_ROM,

                    qemu_ram_alloc(TOSA_ROM) | IO_MEM_ROM);

    tosa_tc6393xb_register(cpu);

    scp0 = scoop_init(cpu, 0, 0x08800000);

    scp1 = scoop_init(cpu, 1, 0x14800040);

    tosa_gpio_setup(cpu, scp0, scp1);

    tosa_microdrive_attach(cpu);

    /* Setup initial (reset) machine state */

    cpu->env->regs[15] = tosa_binfo.loader_start;

    tosa_binfo.kernel_filename = kernel_filename;

    tosa_binfo.kernel_cmdline = kernel_cmdline;

    tosa_binfo.initrd_filename = initrd_filename;

    tosa_binfo.board_id = 0x208;

    arm_load_kernel(cpu->env, &tosa_binfo);

    sl_bootparam_write(SL_PXA_PARAM_BASE - PXA2XX_SDRAM_BASE);

}

QEMUMachine tosapda_machine = {

    "tosa",

    "Tosa PDA (PXA255)",

    tosa_init,

    TOSA_RAM + TOSA_ROM + PXA2XX_INTERNAL_SIZE + RAMSIZE_FIXED,

};