shannon.c

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

#include <linux/init.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <video/sa1100fb.h>

#include <mach/hardware.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 <linux/platform_data/mfd-mcp-sa11x0.h>
#include <mach/shannon.h>
#include <mach/irqs.h>

#include "generic.h"

static struct mtd_partition shannon_partitions[] = {
    {
        .name       = "BLOB boot loader",
        .offset     = 0,
        .size       = 0x20000
    },
    {
        .name       = "kernel",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 0xe0000
    },
    {
        .name       = "initrd",
        .offset     = MTDPART_OFS_APPEND,   
        .size       = MTDPART_SIZ_FULL
    }
};

static struct flash_platform_data shannon_flash_data = {
    .map_name   = "cfi_probe",
    .parts      = shannon_partitions,
    .nr_parts   = ARRAY_SIZE(shannon_partitions),
};

static struct resource shannon_flash_resource =
    DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);

static struct mcp_plat_data shannon_mcp_data = {
    .mccr0      = MCCR0_ADM,
    .sclk_rate  = 11981000,
};

static struct sa1100fb_mach_info shannon_lcd_info = {
    .pixclock   = 152500,   .bpp        = 8,
    .xres       = 640,      .yres       = 480,

    .hsync_len  = 4,        .vsync_len  = 3,
    .left_margin    = 2,        .upper_margin   = 0,
    .right_margin   = 1,        .lower_margin   = 0,

    .sync       = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,

    .lccr0      = LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
    .lccr3      = LCCR3_ACBsDiv(512),
};

static void __init shannon_init(void)
{
    sa11x0_ppc_configure_mcp();
    sa11x0_register_lcd(&shannon_lcd_info);
    sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
    sa11x0_register_mcp(&shannon_mcp_data);
}

static void __init shannon_map_io(void)
{
    sa1100_map_io();

    sa1100_register_uart(0, 3);
    sa1100_register_uart(1, 1);

    Ser1SDCR0 |= SDCR0_SUS;
    GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
    GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
    GPDR &= ~GPIO_UART_RXD;
    PPAR |= PPAR_UPR;

    /* reset the codec */
    GPCR = SHANNON_GPIO_CODEC_RESET;
    GPSR = SHANNON_GPIO_CODEC_RESET;
}

MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
    .atag_offset    = 0x100,
    .map_io     = shannon_map_io,
    .nr_irqs    = SA1100_NR_IRQS,
    .init_irq   = sa1100_init_irq,
    .timer      = &sa1100_timer,
    .init_machine   = shannon_init,
    .init_late  = sa11x0_init_late,
    .restart    = sa11x0_restart,
MACHINE_END