X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=drivers%2Fmtd%2Fspi%2Fspi_spl_load.c;h=2e0c871219bd05ac31c63a80ba793e1dc1255899;hp=7c799ca482ca6617ad29fe05ddd52b927f0a5e68;hb=ff0960f9a018952cbaab59c0d87b6e0338c8f04c;hpb=5b9c79a81db80c3f9e50c77477957cd803429af8

diff --git a/drivers/mtd/spi/spi_spl_load.c b/drivers/mtd/spi/spi_spl_load.c
index 7c799ca482..2e0c871219 100644
--- a/drivers/mtd/spi/spi_spl_load.c
+++ b/drivers/mtd/spi/spi_spl_load.c
@@ -10,9 +10,39 @@
  */
 
 #include <common.h>
+#include <spi.h>
 #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
@@ -27,8 +57,10 @@ void spl_spi_load_image(void)
 	 * Load U-Boot image from SPI flash into RAM
 	 */
 
-	flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS,
-				CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3);
+	flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
+				CONFIG_SF_DEFAULT_CS,
+				CONFIG_SF_DEFAULT_SPEED,
+				CONFIG_SF_DEFAULT_MODE);
 	if (!flash) {
 		puts("SPI probe failed.\n");
 		hang();
@@ -37,10 +69,15 @@ 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);
+	}
 }