This change introduces default MTD partitions for the Zoom-II board
NAND, inspired by the OMAP3 Beagle partitions and the OMAP3 Zoom2
partitions defined in OmapZoom.org's OMAP kernel.
The size of the U-Boot environment partition was increased to 1MB, as
the previously smaller partition couldn't contain the U-Boot environment
correctly (erasing the next partition would erase the U-Boot env as
well).
Finally, the "system" partition gets an increased size of 256MB to take
advantage of the size of the flash on the Zoom-II board.
Signed-off-by: Maxime Petazzoni <mpetazzoni@xxxxxxxxxx>
---
arch/arm/mach-omap2/board-zoom2.c | 86 +++++++++++++++++++++++++++++++++++++
1 files changed, 86 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c
index 4d295d5..ce5a4d8 100644
--- a/arch/arm/mach-omap2/board-zoom2.c
+++ b/arch/arm/mach-omap2/board-zoom2.c
@@ -16,16 +16,101 @@
#include <linux/gpio.h>
#include <linux/i2c/twl4030.h>
#include <linux/regulator/machine.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/common.h>
+#include <mach/nand.h>
#include <mach/usb.h>
#include <mach/keypad.h>
#include "mmc-twl4030.h"
+#define LDP3430_NAND_CS 0
+#define GPMC_CS0_BASE 0x60
+#define GPMC_CS_SIZE 0x30
+
+static struct mtd_partition zoom2_nand_partitions[] = {
+ {
+ .name = "X-Loader-NAND",
+ .offset = 0,
+ .size = 4 * (64 * 2048), /* 512kB */
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "U-Boot-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
+ .size = 4 * (64 * 2048), /* 512kB */
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ {
+ .name = "Boot Env-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x100000 */
+ .size = 8 * (64 * 2048), /* 1MB */
+ },
+ {
+ .name = "Kernel-NAND",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x200000 */
+ .size = 32 * (64 * 2048), /* 4MB */
+ },
+ {
+ .name = "system",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x600000 */
+ .size = 2048 * (64 * 2048), /* 256MB */
+ },
+ {
+ .name = "userdata",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x10600000 */
+ .size = 512 * (64 * 2048), /* 64MB */
+ },
+ {
+ .name = "cache",
+ .offset = MTDPART_OFS_APPEND, /* Offset = 0x14600000 */
+ .size = 512 * (64 * 2048), /* 64MB */
+ },
+};
+
+/* NAND chip access: 16 bit */
+static struct omap_nand_platform_data zoom2_nand_data = {
+ .parts = zoom2_nand_partitions,
+ .nr_parts = ARRAY_SIZE(zoom2_nand_partitions),
+ .nand_setup = NULL,
+ .dma_channel = -1, /* disable DMA in OMAP NAND driver */
+ .dev_ready = NULL,
+};
+
+static struct resource zoom2_nand_resource = {
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device zoom2_nand_device = {
+ .name = "omap2-nand",
+ .id = 0,
+ .dev = {
+ .platform_data = &zoom2_nand_data,
+ },
+ .num_resources = 1,
+ .resource = &zoom2_nand_resource,
+};
+
+static void __init zoom2_flash_init(void)
+{
+ u8 nandcs = LDP3430_NAND_CS;
+ u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
+
+ zoom2_nand_data.cs = nandcs;
+ zoom2_nand_data.gpmc_cs_baseaddr = (void *)(gpmc_base_add +
+ GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
+ zoom2_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
+
+ if (platform_device_register(&zoom2_nand_device) < 0)
+ printk(KERN_ERR "Unable to register NAND device!\n");
+}
+
/* Zoom2 has Qwerty keyboard*/
static int zoom2_twl4030_keymap[] = {
KEY(0, 0, KEY_E),
@@ -271,6 +356,7 @@ static void __init omap_zoom2_init(void)
omap_serial_init(&zoom2_uart_config);
omap_zoom2_debugboard_init();
usb_musb_init();
+ zoom2_flash_init();
}
static void __init omap_zoom2_map_io(void)
--
1.6.3.3.210.g29cb3
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