spear1310.c

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/*
 * arch/arm/mach-spear13xx/spear1310.c
 *
 * SPEAr1310 machine source file
 *
 * Copyright (C) 2012 ST Microelectronics
 * Viresh Kumar <[email protected]>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#define pr_fmt(fmt) "SPEAr1310: " fmt

#include <linux/amba/pl022.h>
#include <linux/of_platform.h>
#include <asm/hardware/gic.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/generic.h>
#include <mach/spear.h>

/* Base addresses */
#define SPEAR1310_SSP1_BASE         UL(0x5D400000)
#define SPEAR1310_SATA0_BASE            UL(0xB1000000)
#define SPEAR1310_SATA1_BASE            UL(0xB1800000)
#define SPEAR1310_SATA2_BASE            UL(0xB4000000)

/* ssp device registration */
static struct pl022_ssp_controller ssp1_plat_data = {
    .bus_id = 0,
    .enable_dma = 0,
    .num_chipselect = 3,
};

/* Add SPEAr1310 auxdata to pass platform data */
static struct of_dev_auxdata spear1310_auxdata_lookup[] __initdata = {
    OF_DEV_AUXDATA("arasan,cf-spear1340", MCIF_CF_BASE, NULL, &cf_dma_priv),
    OF_DEV_AUXDATA("snps,dma-spear1340", DMAC0_BASE, NULL, &dmac_plat_data),
    OF_DEV_AUXDATA("snps,dma-spear1340", DMAC1_BASE, NULL, &dmac_plat_data),
    OF_DEV_AUXDATA("arm,pl022", SSP_BASE, NULL, &pl022_plat_data),

    OF_DEV_AUXDATA("arm,pl022", SPEAR1310_SSP1_BASE, NULL, &ssp1_plat_data),
    {}
};

static void __init spear1310_dt_init(void)
{
    of_platform_populate(NULL, of_default_bus_match_table,
            spear1310_auxdata_lookup, NULL);
}

static const char * const spear1310_dt_board_compat[] = {
    "st,spear1310",
    "st,spear1310-evb",
    NULL,
};

/*
 * Following will create 16MB static virtual/physical mappings
 * PHYSICAL     VIRTUAL
 * 0xD8000000       0xFA000000
 */
struct map_desc spear1310_io_desc[] __initdata = {
    {
        .virtual    = VA_SPEAR1310_RAS_GRP1_BASE,
        .pfn        = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE),
        .length     = SZ_16M,
        .type       = MT_DEVICE
    },
};

static void __init spear1310_map_io(void)
{
    iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc));
    spear13xx_map_io();
}

DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree")
    .smp        =   smp_ops(spear13xx_smp_ops),
    .map_io     =   spear1310_map_io,
    .init_irq   =   spear13xx_dt_init_irq,
    .handle_irq =   gic_handle_irq,
    .timer      =   &spear13xx_timer,
    .init_machine   =   spear1310_dt_init,
    .restart    =   spear_restart,
    .dt_compat  =   spear1310_dt_board_compat,
MACHINE_END