diff options
| -rw-r--r-- | arch/sandbox/lib/bootm.c | 42 |
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)) { |