132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
|
/*
|
||
|
|
* 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 <asm/setup.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
#include <asm/hardware.h>
|
||
|
|
|
||
|
|
#include <asm/mach/arch.h>
|
||
|
|
#include <asm/mach/map.h>
|
||
|
|
#include <asm/mach/flash.h>
|
||
|
|
|
||
|
|
#include <asm/arch/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);
|
||
|
|
|
||
|
|
/* 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_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
|