original development tree for Linux kernel GTP module; now long in mainline.
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linux-gtp/arch/arm/mach-spear13xx/spear1310.c

88 lines
2.4 KiB

/*
* arch/arm/mach-spear13xx/spear1310.c
*
* SPEAr1310 machine source file
*
* Copyright (C) 2012 ST Microelectronics
* Viresh Kumar <viresh.linux@gmail.com>
*
* 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")
.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