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/*
* TI DaVinci EVM board support
*
* Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
*
* 2007 (c) MontaVista Software, Inc. 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.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <mach/common.h>
/* other misc. init functions */
void __init davinci_psc_init(void);
void __init davinci_irq_init(void);
void __init davinci_map_common_io(void);
void __init davinci_init_common_hw(void);
/* NOR Flash base address set to CS0 by default */
#define NOR_FLASH_PHYS 0x02000000
static struct mtd_partition davinci_evm_partitions[] = {
/* bootloader (U-Boot, etc) in first 4 sectors */
{
.name = "bootloader",
.offset = 0,
.size = 4 * SZ_64K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next 1 sectors */
{
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = SZ_64K,
.mask_flags = 0,
},
/* kernel */
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0
},
/* file system */
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct physmap_flash_data davinci_evm_flash_data = {
.width = 2,
.parts = davinci_evm_partitions,
.nr_parts = ARRAY_SIZE(davinci_evm_partitions),
};
/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
* limits addresses to 16M, so using addresses past 16M will wrap */
static struct resource davinci_evm_flash_resource = {
.start = NOR_FLASH_PHYS,
.end = NOR_FLASH_PHYS + SZ_16M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device davinci_evm_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &davinci_evm_flash_data,
},
.num_resources = 1,
.resource = &davinci_evm_flash_resource,
};
static struct platform_device *davinci_evm_devices[] __initdata = {
&davinci_evm_flash_device,
};
static void __init
davinci_evm_map_io(void)
{
davinci_map_common_io();
}
static __init void davinci_evm_init(void)
{
davinci_psc_init();
#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
"but share pins.\n\t Disable IDE for NOR support.\n");
#endif
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
}
static __init void davinci_evm_irq_init(void)
{
davinci_init_common_hw();
davinci_irq_init();
}
MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
/* Maintainer: MontaVista Software <source@mvista.com> */
.phys_io = IO_PHYS,
.io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DAVINCI_DDR_BASE + 0x100),
.map_io = davinci_evm_map_io,
.init_irq = davinci_evm_irq_init,
.timer = &davinci_timer,
.init_machine = davinci_evm_init,
MACHINE_END
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