From: Vimal Singh <vimalsingh@ti.com>
Date: Mon, 15 Feb 2010 18:03:34 +0000 (-0800)
Subject: omap3: Add support for flash on 3430SDP board
X-Git-Tag: firefly_0821_release~9833^2~3052^2~78
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=88c8460ac32283e2a25e36e4670ff5ab02f3b521;p=firefly-linux-kernel-4.4.55.git

omap3: Add support for flash on 3430SDP board

This patch adds support for flashes on 3430SDP boards. All three
NAND, NOR and OneNAND are supported. I have tested it on
3430SDP (ES2 and ES3.1).

This patch can be treated as an example to "how to utilize":
'gpmc-nand.c' and 'board-sdp-flash.c'.

Similar patches can be created for 2430sdp and 3630sdp or any other
similar board.

Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 0b17dca695fd..af5853f13c7a 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -100,7 +100,8 @@ obj-$(CONFIG_MACH_OMAP3EVM)		+= board-omap3evm.o \
 obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o \
 					   mmc-twl4030.o
 obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
-					   mmc-twl4030.o
+					   mmc-twl4030.o \
+					   board-sdp-flash.o
 obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o \
 					   board-rx51-sdram.o \
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index eda4f6448cce..2e38e5bc1cc8 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -41,6 +41,8 @@
 #include <plat/control.h>
 #include <plat/gpmc-smc91x.h>
 
+#include <mach/board-sdp.h>
+
 #include "mux.h"
 #include "sdram-qimonda-hyb18m512160af-6.h"
 #include "mmc-twl4030.h"
@@ -650,6 +652,114 @@ static struct omap_board_mux board_mux[] __initdata = {
 #define board_mux	NULL
 #endif
 
+static struct mtd_partition sdp_nor_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+		.name		= "Bootloader-NOR",
+		.offset		= 0,
+		.size		= SZ_256K,
+		.mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+		.name		= "Params-NOR",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_256K,
+		.mask_flags	= 0,
+	},
+	/* kernel */
+	{
+		.name		= "Kernel-NOR",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_2M,
+		.mask_flags	= 0
+	},
+	/* file system */
+	{
+		.name		= "Filesystem-NOR",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0
+	}
+};
+
+static struct mtd_partition sdp_onenand_partitions[] = {
+	{
+		.name		= "X-Loader-OneNAND",
+		.offset		= 0,
+		.size		= 4 * (64 * 2048),
+		.mask_flags	= MTD_WRITEABLE  /* force read-only */
+	},
+	{
+		.name		= "U-Boot-OneNAND",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 2 * (64 * 2048),
+		.mask_flags	= MTD_WRITEABLE  /* force read-only */
+	},
+	{
+		.name		= "U-Boot Environment-OneNAND",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 1 * (64 * 2048),
+	},
+	{
+		.name		= "Kernel-OneNAND",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 16 * (64 * 2048),
+	},
+	{
+		.name		= "File System-OneNAND",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct mtd_partition sdp_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "X-Loader-NAND",
+		.offset		= 0,
+		.size		= 4 * (64 * 2048),
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 10 * (64 * 2048),
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "Boot Env-NAND",
+
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1c0000 */
+		.size		= 6 * (64 * 2048),
+	},
+	{
+		.name		= "Kernel-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
+		.size		= 40 * (64 * 2048),
+	},
+	{
+		.name		= "File System - NAND",
+		.size		= MTDPART_SIZ_FULL,
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x780000 */
+	},
+};
+
+static struct flash_partitions sdp_flash_partitions[] = {
+	{
+		.parts = sdp_nor_partitions,
+		.nr_parts = ARRAY_SIZE(sdp_nor_partitions),
+	},
+	{
+		.parts = sdp_onenand_partitions,
+		.nr_parts = ARRAY_SIZE(sdp_onenand_partitions),
+	},
+	{
+		.parts = sdp_nand_partitions,
+		.nr_parts = ARRAY_SIZE(sdp_nand_partitions),
+	},
+};
+
 static void __init omap_3430sdp_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
@@ -666,6 +776,7 @@ static void __init omap_3430sdp_init(void)
 	omap_serial_init();
 	usb_musb_init();
 	board_smc91x_init();
+	sdp_flash_init(sdp_flash_partitions);
 	sdp3430_display_init();
 	enable_board_wakeup_source();
 	usb_ehci_init(&ehci_pdata);