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-rw-r--r--arch/sandbox/lib/bootm.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/sandbox/lib/bootm.c b/arch/sandbox/lib/bootm.c
index 8ddf4ef..d49c927 100644
--- a/arch/sandbox/lib/bootm.c
+++ b/arch/sandbox/lib/bootm.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2011 The Chromium OS Authors.
+ * Copyright (c) 2015 Sjoerd Simons <sjoerd.simons@collabora.co.uk>
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -8,6 +9,47 @@
DECLARE_GLOBAL_DATA_PTR;
+#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)
+{
+ uint8_t *zimage = map_sysmem(image, 0);
+ struct arm_z_header *arm_hdr = (struct arm_z_header *)zimage;
+ int ret = 0;
+
+ if (memcmp(zimage + 0x202, "HdrS", 4) == 0) {
+ uint8_t setup_sects = *(zimage + 0x1f1);
+ uint32_t syssize =
+ le32_to_cpu(*(uint32_t *)(zimage + 0x1f4));
+
+ *start = 0;
+ *end = (setup_sects + 1) * 512 + syssize * 16;
+
+ printf("setting up X86 zImage [ %ld - %ld ]\n",
+ *start, *end);
+ } else if (le32_to_cpu(arm_hdr->zi_magic) == LINUX_ARM_ZIMAGE_MAGIC) {
+ *start = le32_to_cpu(arm_hdr->zi_start);
+ *end = le32_to_cpu(arm_hdr->zi_end);
+
+ printf("setting up ARM zImage [ %ld - %ld ]\n",
+ *start, *end);
+ } else {
+ printf("Unrecognized zImage\n");
+ ret = 1;
+ }
+
+ unmap_sysmem((void *)image);
+
+ return ret;
+}
+
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {