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61 lines
1.5 KiB
61 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (c) 2011 The Chromium OS Authors. |
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* Copyright (c) 2015 Sjoerd Simons <[email protected]> |
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*/ |
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#include <common.h> |
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#include <asm/io.h> |
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#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818 |
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struct arm_z_header { |
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uint32_t code[9]; |
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uint32_t zi_magic; |
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uint32_t zi_start; |
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uint32_t zi_end; |
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} __attribute__ ((__packed__)); |
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int bootz_setup(ulong image, ulong *start, ulong *end) |
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{ |
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uint8_t *zimage = map_sysmem(image, 0); |
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struct arm_z_header *arm_hdr = (struct arm_z_header *)zimage; |
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int ret = 0; |
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if (memcmp(zimage + 0x202, "HdrS", 4) == 0) { |
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uint8_t setup_sects = *(zimage + 0x1f1); |
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uint32_t syssize = |
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le32_to_cpu(*(uint32_t *)(zimage + 0x1f4)); |
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*start = 0; |
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*end = (setup_sects + 1) * 512 + syssize * 16; |
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printf("setting up X86 zImage [ %ld - %ld ]\n", |
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*start, *end); |
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} else if (le32_to_cpu(arm_hdr->zi_magic) == LINUX_ARM_ZIMAGE_MAGIC) { |
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*start = le32_to_cpu(arm_hdr->zi_start); |
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*end = le32_to_cpu(arm_hdr->zi_end); |
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printf("setting up ARM zImage [ %ld - %ld ]\n", |
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*start, *end); |
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} else { |
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printf("Unrecognized zImage\n"); |
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ret = 1; |
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} |
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unmap_sysmem((void *)image); |
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return ret; |
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} |
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int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) |
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{ |
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if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) { |
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bootstage_mark(BOOTSTAGE_ID_RUN_OS); |
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printf("## Transferring control to Linux (at address %08lx)...\n", |
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images->ep); |
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printf("sandbox: continuing, as we cannot run Linux\n"); |
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} |
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return 0; |
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}
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