From bb085b87e587b5ea98519d95c8b24f603d91360a Mon Sep 17 00:00:00 2001
From: Simon Schwarz <simonschwarzcor@googlemail.com>
Date: Wed, 14 Sep 2011 15:29:26 -0400
Subject: omap-common: add nand spl support

Add NAND support for the new SPL structure.

Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
---
 arch/arm/cpu/armv7/omap-common/spl.c | 46 +++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

(limited to 'arch/arm/cpu/armv7/omap-common')

diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c
index 1d301f4..53d10bf 100644
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -26,6 +26,7 @@
 #include <asm/u-boot.h>
 #include <asm/utils.h>
 #include <asm/arch/sys_proto.h>
+#include <nand.h>
 #include <mmc.h>
 #include <fat.h>
 #include <timestamp_autogenerated.h>
@@ -173,7 +174,7 @@ end:
 		hang();
 	}
 }
-
+static void mmc_load_image(void) __attribute__((unused));
 static void mmc_load_image(void)
 {
 	struct mmc *mmc;
@@ -207,12 +208,48 @@ static void mmc_load_image(void)
 	}
 }
 
+#ifdef CONFIG_SPL_NAND_SUPPORT
+static void nand_load_image(void) __attribute__ ((unused));
+static void nand_load_image(void)
+{
+	struct image_header *header;
+
+	gpmc_init();
+	nand_init();
+
+	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+
+#ifdef CONFIG_NAND_ENV_DST
+	nand_spl_load_image(CONFIG_ENV_OFFSET,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	parse_image_header(header);
+	nand_spl_load_image(CONFIG_ENV_OFFSET, image_size,
+		(void *)image_load_addr);
+#ifdef CONFIG_ENV_OFFSET_REDUND
+	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	parse_image_header(header);
+	nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, image_size,
+		(void *)image_load_addr);
+#endif
+#endif
+	/* Load u-boot */
+	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+		CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+	parse_image_header(header);
+	nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+		image_size, (void *)image_load_addr);
+	nand_deselect();
+}
+#endif /* CONFIG_SPL_NAND_SUPPORT */
 void jump_to_image_no_args(void)
 {
 	typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn));
 	image_entry_noargs_t image_entry =
 			(image_entry_noargs_t) image_entry_point;
 
+	debug("image entry point: 0x%X\n", image_entry_point);
 	image_entry();
 }
 
@@ -228,10 +265,17 @@ void board_init_r(gd_t *id, ulong dummy)
 	boot_device = omap_boot_device();
 	debug("boot device - %d\n", boot_device);
 	switch (boot_device) {
+#ifdef CONFIG_SPL_MMC_SUPPORT
 	case BOOT_DEVICE_MMC1:
 	case BOOT_DEVICE_MMC2:
 		mmc_load_image();
 		break;
+#endif
+#ifdef CONFIG_SPL_NAND_SUPPORT
+	case BOOT_DEVICE_NAND:
+		nand_load_image();
+		break;
+#endif
 	default:
 		printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
 		hang();
-- 
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