nand support on omap3 boards

index e51f8e3..61b5632 100644
@@ -41,7 +41,7 @@
 #include <plat/control.h>
 #include <plat/gpmc-smc91x.h>
 
-#include <mach/board-sdp.h>
+#include <mach/board-flash.h>
 
 #include "mux.h"
 #include "sdram-qimonda-hyb18m512160af-6.h"

@@ -667,6 +667,18 @@ static struct omap_board_mux board_mux[] __initdata = {
 #define board_mux	NULL
 #endif
 
+/*
+ * SDP3430 V2 Board CS organization
+ * Different from SDP3430 V1. Now 4 switches used to specify CS
+ *
+ * See also the Switch S8 settings in the comments.
+ */
+static char chip_sel_3430[][GPMC_CS_NUM] = {
+	{PDC_NOR, PDC_NAND, PDC_ONENAND, DBG_MPDB, 0, 0, 0, 0}, /* S8:1111 */
+	{PDC_ONENAND, PDC_NAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1110 */
+	{PDC_NAND, PDC_ONENAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1101 */
+};
+
 static struct mtd_partition sdp_nor_partitions[] = {
 	/* bootloader (U-Boot, etc) in first sector */
 	{

@@ -797,7 +809,7 @@ static void __init omap_3430sdp_init(void)
 	omap_serial_init();
 	usb_musb_init(&musb_board_data);
 	board_smc91x_init();
-	sdp_flash_init(sdp_flash_partitions);
+	board_flash_init(sdp_flash_partitions, chip_sel_3430);
 	sdp3430_display_init();
 	enable_board_wakeup_source();
 	usb_ehci_init(&ehci_pdata);

189 lines not on this page · raw message

similarity index 71%
rename from arch/arm/mach-omap2/include/mach/board-sdp.h
rename to arch/arm/mach-omap2/include/mach/board-flash.h
index 465169c..b2242ae 100644
@@ -12,10 +12,17 @@
  */
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <plat/gpmc.h>
+
+#define PDC_NOR		1
+#define PDC_NAND	2
+#define PDC_ONENAND	3
+#define DBG_MPDB	4
 
 struct flash_partitions {
 	struct mtd_partition *parts;
 	int nr_parts;
 };
 
-extern void sdp_flash_init(struct flash_partitions []);
+extern void board_flash_init(struct flash_partitions [],
+				char chip_sel[][GPMC_CS_NUM]);

53 lines not on this page · raw message

index c93b29e..3af69d2 100644
@@ -1,5 +1,11 @@
 /*
  * Defines for zoom boards
  */
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#define ZOOM_NAND_CS    0
+
+extern void __init board_nand_init(struct mtd_partition *, u8 nr_parts, u8 cs);
 extern int __init zoom_debugboard_init(void);
 extern void __init zoom_peripherals_init(void);

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index 6e3930e..9845995 100644
@@ -38,6 +38,7 @@
 #include <plat/board.h>
 #include <plat/common.h>
 #include <plat/gpmc.h>
+#include <mach/board-zoom.h>
 
 #include <asm/delay.h>
 #include <plat/control.h>

@@ -388,6 +389,38 @@ static struct omap_musb_board_data musb_board_data = {
 	.power			= 100,
 };
 
+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 * (64 * 2048),	/* 512KB, 0x80000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "Boot Env-NAND",
+		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
+		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
+	},
+	{
+		.name		= "Kernel-NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
+		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
+	},
+	{
+		.name		= "File System - NAND",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
+		.size		= MTDPART_SIZ_FULL,	/* 96MB, 0x6000000 */
+	},
+
+};
+
 static void __init omap_ldp_init(void)
 {
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);

@@ -400,6 +433,8 @@ static void __init omap_ldp_init(void)
 	ads7846_dev_init();
 	omap_serial_init();
 	usb_musb_init(&musb_board_data);
+	board_nand_init(ldp_nand_partitions,
+		ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);
 
 	omap2_hsmmc_init(mmc);
 	/* link regulators to MMC adapters */