Signed-off-by: Tom Rini <tr...@ti.com>
---
drivers/mtd/spi/spi_spl_load.c | 46 ++++++++++++++++++++++++++++++++++------
1 file changed, 40 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/spi/spi_spl_load.c b/drivers/mtd/spi/spi_spl_load.c
index 2935530..1954b7e 100644
--- a/drivers/mtd/spi/spi_spl_load.c
+++ b/drivers/mtd/spi/spi_spl_load.c
@@ -13,6 +13,35 @@
#include <spi_flash.h>
#include <spl.h>
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Load the kernel, check for a valid header we can parse, and if found load
+ * the kernel and then device tree.
+ */
+static int spi_load_image_os(struct spi_flash *flash,
+ struct image_header *header)
+{
+ /* Read for a header, parse or error out. */
+ spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, 0x40,
+ (void *)header);
+
+ if (image_get_magic(header) != IH_MAGIC)
+ return -1;
+
+ spl_parse_image_header(header);
+
+ spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS,
+ spl_image.size, (void *)spl_image.load_addr);
+
+ /* Read device tree. */
+ spi_flash_read(flash, CONFIG_SYS_SPI_ARGS_OFFS,
+ CONFIG_SYS_SPI_ARGS_SIZE,
+ (void *)CONFIG_SYS_SPL_ARGS_ADDR);
+
+ return 0;
+}
+#endif
+
/*
* The main entry for SPI booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image
@@ -37,10 +66,15 @@ void spl_spi_load_image(void)
/* use CONFIG_SYS_TEXT_BASE as temporary storage area */
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
- /* Load u-boot, mkimage header is 64 bytes. */
- spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40,
- (void *)header);
- spl_parse_image_header(header);
- spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
- spl_image.size, (void *)spl_image.load_addr);
+#ifdef CONFIG_SPL_OS_BOOT
+ if (spl_start_uboot() || spi_load_image_os(flash, header))
+#endif
+ {
+ /* Load u-boot, mkimage header is 64 bytes. */
+ spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40,
+ (void *)header);
+ spl_parse_image_header(header);
+ spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS,
+ spl_image.size, (void *)spl_image.load_addr);
+ }
}
--
1.7.9.5
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