1 files changed, 64 insertions, 0 deletions
diff --git a/common/cmd_bootldr.c b/common/cmd_bootldr.c
new file mode 100644
index 0000000..e6474aa
--- /dev/null
+++ b/common/cmd_bootldr.c
@@ -0,0 +1,64 @@
+/*
+ * U-boot - bootldr.c
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/bootrom.h>
+
+/*
+ * the bootldr command loads an address, checks to see if there
+ *   is a Boot stream that the on-chip BOOTROM can understand,
+ *   and loads it via the BOOTROM Callback. It is possible
+ *   to also add booting from SPI, or TWI, but this function does
+ *   not currently support that.
+ */
+
+int do_bootldr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	void *addr;
+	uint32_t *data;
+
+	/* Get the address */
+	if (argc < 2)
+		addr = (void *)load_addr;
+	else
+		addr = (void *)simple_strtoul(argv[1], NULL, 16);
+
+	/* Check if it is a LDR file */
+	data = addr;
+#if defined(__ADSPBF54x__) || defined(__ADSPBF52x__)
+	if ((*data & 0xFF000000) == 0xAD000000 && data[2] == 0x00000000) {
+#else
+	if (*data == 0xFF800060 || *data == 0xFF800040 || *data == 0xFF800020) {
+#endif
+		/* We want to boot from FLASH or SDRAM */
+		printf("## Booting ldr image at 0x%p ...\n", addr);
+
+		icache_disable();
+		dcache_disable();
+
+		__asm__(
+			"jump (%1);"
+			:
+			: "q7" (addr), "a" (_BOOTROM_MEMBOOT));
+	} else
+		printf("## No ldr image at address 0x%p\n", addr);
+
+	return 0;
+}
+
+U_BOOT_CMD(bootldr, 2, 0, do_bootldr,
+	"bootldr - boot ldr image from memory\n",
+	"[addr]\n"
+	"    - boot ldr image stored in memory\n");