Add NAND support on OMAP_LDP.
Signed-off-by: Stanley.Miao <stanley.miao@xxxxxxxxxxxxx>
---
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 <stanley.miao@xxxxxxxxxxxxx>
+ * 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
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