From 9c170e2ef4ad2bd246c22c93824d754224c4929a Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 7 Jan 2013 02:53:42 +0000
Subject: MIPS: bootm.c: add support for 'prep' and 'go' subcommands

The bootm command supports subcommands since long time
however those subcommands are not yet usable on MIPS.

The patch is based on the ARM implementation, and it adds
support for the 'prep' and 'go' subcommands only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>

diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 8c2e508..a36154a 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -104,8 +104,19 @@ static void boot_jump_linux(bootm_headers_t *images)
 int do_bootm_linux(int flag, int argc, char * const argv[],
 			bootm_headers_t *images)
 {
-	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
-		return 1;
+	/* No need for those on MIPS */
+	if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE)
+		return -1;
+
+	if (flag & BOOTM_STATE_OS_PREP) {
+		boot_prep_linux(images);
+		return 0;
+	}
+
+	if (flag & BOOTM_STATE_OS_GO) {
+		boot_jump_linux(images);
+		return 0;
+	}
 
 	boot_prep_linux(images);
 	boot_jump_linux(images);
-- 
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