134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
/*
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* TI DaVinci EVM board support
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*
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* Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
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*
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* 2007 (c) MontaVista Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <asm/setup.h>
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#include <asm/io.h>
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#include <asm/mach-types.h>
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#include <asm/hardware.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <asm/arch/common.h>
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/* other misc. init functions */
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void __init davinci_psc_init(void);
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void __init davinci_irq_init(void);
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void __init davinci_map_common_io(void);
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void __init davinci_init_common_hw(void);
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/* NOR Flash base address set to CS0 by default */
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#define NOR_FLASH_PHYS 0x02000000
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static struct mtd_partition davinci_evm_partitions[] = {
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/* bootloader (U-Boot, etc) in first 4 sectors */
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{
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.name = "bootloader",
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.offset = 0,
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.size = 4 * SZ_64K,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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},
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/* bootloader params in the next 1 sectors */
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{
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.name = "params",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_64K,
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.mask_flags = 0,
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},
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/* kernel */
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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.mask_flags = 0
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},
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/* file system */
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{
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.name = "filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0
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}
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};
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static struct physmap_flash_data davinci_evm_flash_data = {
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.width = 2,
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.parts = davinci_evm_partitions,
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.nr_parts = ARRAY_SIZE(davinci_evm_partitions),
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};
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/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
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* limits addresses to 16M, so using addresses past 16M will wrap */
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static struct resource davinci_evm_flash_resource = {
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.start = NOR_FLASH_PHYS,
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.end = NOR_FLASH_PHYS + SZ_16M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device davinci_evm_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &davinci_evm_flash_data,
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},
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.num_resources = 1,
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.resource = &davinci_evm_flash_resource,
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};
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static struct platform_device *davinci_evm_devices[] __initdata = {
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&davinci_evm_flash_device,
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};
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static void __init
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davinci_evm_map_io(void)
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{
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davinci_map_common_io();
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}
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static __init void davinci_evm_init(void)
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{
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davinci_psc_init();
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#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
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printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
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"but share pins.\n\t Disable IDE for NOR support.\n");
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#endif
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platform_add_devices(davinci_evm_devices,
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ARRAY_SIZE(davinci_evm_devices));
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}
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static __init void davinci_evm_irq_init(void)
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{
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davinci_init_common_hw();
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davinci_irq_init();
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}
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MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
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/* Maintainer: MontaVista Software <source@mvista.com> */
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.phys_io = IO_PHYS,
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.io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
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.boot_params = (DAVINCI_DDR_BASE + 0x100),
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.map_io = davinci_evm_map_io,
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.init_irq = davinci_evm_irq_init,
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.timer = &davinci_timer,
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.init_machine = davinci_evm_init,
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MACHINE_END
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