spl: zImage support in Falcon mode

Other payload than uImage is currently considered to be raw U-Boot
image. Check also for zImage in Falcon mode.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Heiko Schocher <hs@denx.de>

1 files changed, 40 insertions, 0 deletions

diff --git a/arch/arm/lib/zimage.c b/arch/arm/lib/zimage.c
new file mode 100644
index 0000000000..1e811a87dd
--- /dev/null
+++ b/arch/arm/lib/zimage.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016
+ * Ladislav Michl <ladis@linux-mips.org>
+ *
+ * bootz code:
+ * Copyright (C) 2012 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+#define	LINUX_ARM_ZIMAGE_MAGIC	0x016f2818
+
+struct arm_z_header {
+	uint32_t	code[9];
+	uint32_t	zi_magic;
+	uint32_t	zi_start;
+	uint32_t	zi_end;
+} __attribute__ ((__packed__));
+
+int bootz_setup(ulong image, ulong *start, ulong *end)
+{
+	struct arm_z_header *zi = (struct arm_z_header *)image;
+
+	if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
+#ifndef CONFIG_SPL_FRAMEWORK
+		puts("Bad Linux ARM zImage magic!\n");
+#endif
+		return 1;
+	}
+
+	*start = zi->zi_start;
+	*end = zi->zi_end;
+#ifndef CONFIG_SPL_FRAMEWORK
+	printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n",
+	       image, *start, *end);
+#endif
+
+	return 0;
+}