/* * 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); 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