Add NAND support for the new SPL structure.
Signed-off-by: Simon Schwarz <simonschwarz...@gmail.com>
---
This patch didn't exist before V2!
V2 changes:
ADD Some define-barriers for OMAP3 to only use NAND
ADD nand_load_image() - inits the OMAP gpmc, loads the images - parses the
header
CHG cosmetic
ADD do_reset() implementation for omap-common spl
ADD nand_copy_image to nand.h
ADD CPP barriers for mmc and nand support. The parts depending on library
support are only compiled if the respective library is included.
V3 changes:
ADD Comment why setup_clocks_for_console() isn't called for OMAP3
CHG cosmetic (deleted empty line)
CHG rename of NAND_MODE_HW to NAND_MODE_HW_ECC
DEL NAND_MODE_SW. Not used.
V4 changes:
CHG cosmetic - style problems
V5 changes:
CHG renamed nand_copy_image to nand_spl_load_image
CHG offs paramter of nand_spl_load_image is of type loff_t now
V6 changes:
ADD call to nand_deselect after loading the images
ADD nand_deselect to nand.h
V7 changes:
DEL some CONFIG_SPL_* relying on garbage collection now
ADD mmc_load_image and nand_load_image now have __attribute__((unused)) to
prevent warnings when the lib is not added to SPL
DEL do_reset() isn't used anymore
CHG header based loading in SPL
V8 changes:
DEL nand_spl_read_page is replaced by nand_spl_load_image with size=page size
Transition from V1 to V2 also includes that this patch is now based on
- the new SPL layout by Aneesh V and Daniel Schwierzeck
- the OMAP4 SPL patches by Aneesh V
---
arch/arm/cpu/armv7/omap-common/spl.c | 46 +++++++++++++++++++++++++++++++++-
arch/arm/include/asm/omap_common.h | 1 +
include/nand.h | 3 ++
3 files changed, 49 insertions(+), 1 deletions(-)
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();
diff --git a/arch/arm/include/asm/omap_common.h
b/arch/arm/include/asm/omap_common.h
index d3cb857..13f6884 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -49,6 +49,7 @@ void preloader_console_init(void);
#define MMCSD_MODE_UNDEFINED 0
#define MMCSD_MODE_RAW 1
#define MMCSD_MODE_FAT 2
+#define NAND_MODE_HW_ECC 3
u32 omap_boot_device(void);
u32 omap_boot_mode(void);
diff --git a/include/nand.h b/include/nand.h
index 8d94b5c..3c5ef4e 100644
--- a/include/nand.h
+++ b/include/nand.h
@@ -132,6 +132,9 @@ int nand_lock( nand_info_t *meminfo, int tight );
int nand_unlock( nand_info_t *meminfo, ulong start, ulong length );
int nand_get_lock_status(nand_info_t *meminfo, loff_t offset);
+void nand_spl_load_image(loff_t offs, unsigned int size, uchar *dst);
+void nand_deselect(void);
+
#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
void board_nand_select_device(struct nand_chip *nand, int chip);
#endif
--
1.7.4.1
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