1 files changed, 122 insertions, 0 deletions
diff --git a/roms/u-boot/common/spl/spl_nor.c b/roms/u-boot/common/spl/spl_nor.c
new file mode 100644
index 000000000..5270401db
--- /dev/null
+++ b/roms/u-boot/common/spl/spl_nor.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2012 Stefan Roese <sr@denx.de>
+ */
+
+#include <common.h>
+#include <image.h>
+#include <log.h>
+#include <spl.h>
+
+static ulong spl_nor_load_read(struct spl_load_info *load, ulong sector,
+			       ulong count, void *buf)
+{
+	debug("%s: sector %lx, count %lx, buf %p\n",
+	      __func__, sector, count, buf);
+	memcpy(buf, (void *)sector, count);
+
+	return count;
+}
+
+unsigned long __weak spl_nor_get_uboot_base(void)
+{
+	return CONFIG_SYS_UBOOT_BASE;
+}
+
+static int spl_nor_load_image(struct spl_image_info *spl_image,
+			      struct spl_boot_device *bootdev)
+{
+	__maybe_unused const struct image_header *header;
+	__maybe_unused struct spl_load_info load;
+
+	/*
+	 * Loading of the payload to SDRAM is done with skipping of
+	 * the mkimage header in this SPL NOR driver
+	 */
+	spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
+
+#ifdef CONFIG_SPL_OS_BOOT
+	if (!spl_start_uboot()) {
+		/*
+		 * Load Linux from its location in NOR flash to its defined
+		 * location in SDRAM
+		 */
+		header = (const struct image_header *)CONFIG_SYS_OS_BASE;
+#ifdef CONFIG_SPL_LOAD_FIT
+		if (image_get_magic(header) == FDT_MAGIC) {
+			int ret;
+
+			debug("Found FIT\n");
+			load.bl_len = 1;
+			load.read = spl_nor_load_read;
+
+			ret = spl_load_simple_fit(spl_image, &load,
+						  CONFIG_SYS_OS_BASE,
+						  (void *)header);
+
+#if defined CONFIG_SYS_SPL_ARGS_ADDR && defined CONFIG_CMD_SPL_NOR_OFS
+			memcpy((void *)CONFIG_SYS_SPL_ARGS_ADDR,
+			       (void *)CONFIG_CMD_SPL_NOR_OFS,
+			       CONFIG_CMD_SPL_WRITE_SIZE);
+#endif
+			return ret;
+		}
+#endif
+		if (image_get_os(header) == IH_OS_LINUX) {
+			/* happy - was a Linux */
+			int ret;
+
+			ret = spl_parse_image_header(spl_image, header);
+			if (ret)
+				return ret;
+
+			memcpy((void *)spl_image->load_addr,
+			       (void *)(CONFIG_SYS_OS_BASE +
+					sizeof(struct image_header)),
+			       spl_image->size);
+#ifdef CONFIG_SYS_FDT_BASE
+			spl_image->arg = (void *)CONFIG_SYS_FDT_BASE;
+#endif
+
+			return 0;
+		} else {
+			puts("The Expected Linux image was not found.\n"
+			     "Please check your NOR configuration.\n"
+			     "Trying to start u-boot now...\n");
+		}
+	}
+#endif
+
+	/*
+	 * Load real U-Boot from its location in NOR flash to its
+	 * defined location in SDRAM
+	 */
+#ifdef CONFIG_SPL_LOAD_FIT
+	header = (const struct image_header *)spl_nor_get_uboot_base();
+	if (image_get_magic(header) == FDT_MAGIC) {
+		debug("Found FIT format U-Boot\n");
+		load.bl_len = 1;
+		load.read = spl_nor_load_read;
+		return spl_load_simple_fit(spl_image, &load,
+					   spl_nor_get_uboot_base(),
+					   (void *)header);
+	}
+#endif
+	if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
+		load.bl_len = 1;
+		load.read = spl_nor_load_read;
+		return spl_load_imx_container(spl_image, &load,
+					      spl_nor_get_uboot_base());
+	}
+
+	/* Legacy image handling */
+	if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_SUPPORT)) {
+		load.bl_len = 1;
+		load.read = spl_nor_load_read;
+		return spl_load_legacy_img(spl_image, &load,
+					   spl_nor_get_uboot_base());
+	}
+
+	return 0;
+}
+SPL_LOAD_IMAGE_METHOD("NOR", 0, BOOT_DEVICE_NOR, spl_nor_load_image);