Add NAND support on OMAP_LDP. Signed-off-by: Stanley.Miao <[EMAIL PROTECTED]> --- arch/arm/mach-omap2/Makefile | 3 +- arch/arm/mach-omap2/board-ldp-flash.c | 103 +++++++++++++++++++++++++++ arch/arm/mach-omap2/board-ldp.c | 1 + arch/arm/plat-omap/include/mach/board-ldp.h | 2 + 4 files changed, 108 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-omap2/board-ldp-flash.c
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 3897347..bfc9bcf 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -66,7 +66,8 @@ obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o \ twl4030-generic-scripts.o obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o \ mmc-twl4030.o \ - usb-musb.o + usb-musb.o \ + board-ldp-flash.o obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o \ board-apollon-mmc.o \ board-apollon-keys.o diff --git a/arch/arm/mach-omap2/board-ldp-flash.c b/arch/arm/mach-omap2/board-ldp-flash.c new file mode 100644 index 0000000..06e0f2d --- /dev/null +++ b/arch/arm/mach-omap2/board-ldp-flash.c @@ -0,0 +1,103 @@ +/* + * linux/arch/arm/mach-omap2/board-ldp-flash.c + * + * Copyright (C) 2008 Wind River Systems, Inc. + * + * Author: Stanley Miao <[EMAIL PROTECTED]> + * Based on mach-omap2/board-3430sdp-flash.c by Rohit Choraria + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/nand.h> +#include <linux/types.h> +#include <linux/io.h> + +#include <asm/mach/flash.h> +#include <mach/board.h> +#include <mach/gpmc.h> +#include <mach/nand.h> + +#define GPMC_CS0_BASE 0x60 +#define GPMC_CS_SIZE 0x30 +#define NAND_BLOCK_SIZE SZ_128K + +static struct mtd_partition ldp_nand_partitions[] = { + /* All the partition sizes are listed in terms of NAND block size */ + { + .name = "X-Loader-NAND", + .offset = 0, + .size = 4 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "U-Boot-NAND", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ + .size = 4 * NAND_BLOCK_SIZE, + .mask_flags = MTD_WRITEABLE, /* force read-only */ + }, + { + .name = "Boot Env-NAND", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x100000 */ + .size = 2 * NAND_BLOCK_SIZE, + }, + { + .name = "Kernel-NAND", + .offset = MTDPART_OFS_APPEND, /* Offset = 0x140000 */ + .size = 32 * NAND_BLOCK_SIZE, + }, + { + .name = "File System - NAND", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, /* Offset = 0x540000 */ + }, +}; + +/* NAND chip access: 16 bit */ +static struct omap_nand_platform_data ldp_nand_data = { + .parts = ldp_nand_partitions, + .nr_parts = ARRAY_SIZE(ldp_nand_partitions), + .nand_setup = NULL, + .dma_channel = -1, /* disable DMA in OMAP NAND driver */ + .dev_ready = NULL, +}; + +static struct resource ldp_nand_resource = { + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ldp_nand_device = { + .name = "omap2-nand", + .id = 0, + .dev = { + .platform_data = &ldp_nand_data, + }, + .num_resources = 1, + .resource = &ldp_nand_resource, +}; + +/** + * ldp430_flash_init - Identify devices connected to GPMC and register. + * + * @return - void. + */ +void __init ldp_flash_init(void) +{ + int nandcs = LDP_NAND_CS; + u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; + + ldp_nand_data.cs = nandcs; + ldp_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add + + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); + ldp_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add); + + if (platform_device_register(&ldp_nand_device) < 0) + printk(KERN_ERR "Unable to register NAND device\n"); +} + diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index 79f49d3..103ce6d 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -538,6 +538,7 @@ static void __init omap_ldp_init(void) ARRAY_SIZE(ldp_spi_board_info)); msecure_init(); ads7846_dev_init(); + ldp_flash_init(); omap_serial_init(); usb_musb_init(); hsmmc_init(mmc); diff --git a/arch/arm/plat-omap/include/mach/board-ldp.h b/arch/arm/plat-omap/include/mach/board-ldp.h index f233996..5174537 100644 --- a/arch/arm/plat-omap/include/mach/board-ldp.h +++ b/arch/arm/plat-omap/include/mach/board-ldp.h @@ -29,9 +29,11 @@ #ifndef __ASM_ARCH_OMAP_LDP_H #define __ASM_ARCH_OMAP_LDP_H +extern void ldp_flash_init(void); extern void twl4030_bci_battery_init(void); #define TWL4030_IRQNUM INT_34XX_SYS_NIRQ +#define LDP_NAND_CS 0 #define LDP_SMC911X_CS 1 #define LDP_SMC911X_GPIO 152 #define DEBUG_BASE 0x08000000 -- 1.5.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html