Blackfin: new spibootldr command

Newer Blackfin parts can an on-chip ROM that can boot LDRs over SPI flashes,
so add a new 'spibootldr' command to take advantage of it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

2 files changed, 37 insertions, 0 deletions

diff --git a/common/Makefile b/common/Makefile
index ee0cb33..c8e5d26 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -133,6 +133,7 @@ COBJS-$(CONFIG_CMD_SF) += cmd_sf.o
 COBJS-$(CONFIG_CMD_SCSI) += cmd_scsi.o
 COBJS-$(CONFIG_CMD_SETEXPR) += cmd_setexpr.o
 COBJS-$(CONFIG_CMD_SPI) += cmd_spi.o
+COBJS-$(CONFIG_CMD_SPIBOOTLDR) += cmd_spibootldr.o
 COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o
 COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o
 COBJS-$(CONFIG_CMD_UBI) += cmd_ubi.o
diff --git a/common/cmd_spibootldr.c b/common/cmd_spibootldr.c
new file mode 100644
index 0000000..d29ed2b
--- /dev/null
+++ b/common/cmd_spibootldr.c
@@ -0,0 +1,36 @@
+/*
+ * U-boot - spibootldr.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 <common.h>
+#include <command.h>
+
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/bootrom.h>
+
+int do_spibootldr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	s32 addr;
+
+	/* Get the address */
+	if (argc < 2)
+		addr = 0;
+	else
+		addr = simple_strtoul(argv[1], NULL, 16);
+
+	printf("## Booting ldr image at SPI offset 0x%x ...\n", addr);
+
+	return bfrom_SpiBoot(addr, BFLAG_PERIPHERAL | 4, 0, NULL);
+}
+
+U_BOOT_CMD(spibootldr, 2, 0, do_spibootldr,
+	"boot ldr image from spi",
+	"[offset]\n"
+	"    - boot ldr image stored at offset into spi\n");