diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 1 | ||||
| -rw-r--r-- | common/cmd_bootm.c | 23 | ||||
| -rw-r--r-- | common/image-android.c | 84 | ||||
| -rw-r--r-- | common/image.c | 20 |
4 files changed, 122 insertions, 6 deletions
diff --git a/common/Makefile b/common/Makefile index 2d4e877..c52aede 100644 --- a/common/Makefile +++ b/common/Makefile @@ -237,6 +237,7 @@ obj-y += console.o obj-$(CONFIG_CROS_EC) += cros_ec.o obj-y += dlmalloc.o obj-y += image.o +obj-$(CONFIG_ANDROID_BOOT_IMAGE) += image-android.o obj-$(CONFIG_OF_LIBFDT) += image-fdt.o obj-$(CONFIG_FIT) += image-fit.o obj-$(CONFIG_FIT_SIGNATURE) += image-sig.o diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 6cd9242..e6b8b0f 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -222,6 +222,7 @@ static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { const void *os_hdr; + bool ep_found = false; /* get kernel image header, start address and length */ os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, @@ -274,6 +275,18 @@ static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, } break; #endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + case IMAGE_FORMAT_ANDROID: + images.os.type = IH_TYPE_KERNEL; + images.os.comp = IH_COMP_NONE; + images.os.os = IH_OS_LINUX; + images.ep = images.os.load; + ep_found = true; + + images.os.end = android_image_get_end(os_hdr); + images.os.load = android_image_get_kload(os_hdr); + break; +#endif default: puts("ERROR: unknown image format type!\n"); return 1; @@ -293,7 +306,7 @@ static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, return 1; } #endif - } else { + } else if (!ep_found) { puts("Could not find kernel entry point!\n"); return 1; } @@ -1012,6 +1025,14 @@ static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, images->fit_noffset_os = os_noffset; break; #endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + case IMAGE_FORMAT_ANDROID: + printf("## Booting Android Image at 0x%08lx ...\n", img_addr); + if (android_image_get_kernel((void *)img_addr, images->verify, + os_data, os_len)) + return NULL; + break; +#endif default: printf("Wrong Image Format for %s command\n", cmdtp->name); bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); diff --git a/common/image-android.c b/common/image-android.c new file mode 100644 index 0000000..6ded7e2 --- /dev/null +++ b/common/image-android.c @@ -0,0 +1,84 @@ +/* + * Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <image.h> +#include <android_image.h> + +static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; + +int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, + ulong *os_data, ulong *os_len) +{ + /* + * Not all Android tools use the id field for signing the image with + * sha1 (or anything) so we don't check it. It is not obvious that the + * string is null terminated so we take care of this. + */ + strncpy(andr_tmp_str, hdr->name, ANDR_BOOT_NAME_SIZE); + andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0'; + if (strlen(andr_tmp_str)) + printf("Android's image name: %s\n", andr_tmp_str); + + printf("Kernel load addr 0x%08x size %u KiB\n", + hdr->kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); + strncpy(andr_tmp_str, hdr->cmdline, ANDR_BOOT_ARGS_SIZE); + andr_tmp_str[ANDR_BOOT_ARGS_SIZE] = '\0'; + if (strlen(andr_tmp_str)) { + printf("Kernel command line: %s\n", andr_tmp_str); + setenv("bootargs", andr_tmp_str); + } + if (hdr->ramdisk_size) + printf("RAM disk load addr 0x%08x size %u KiB\n", + hdr->ramdisk_addr, + DIV_ROUND_UP(hdr->ramdisk_size, 1024)); + + if (os_data) { + *os_data = (ulong)hdr; + *os_data += hdr->page_size; + } + if (os_len) + *os_len = hdr->kernel_size; + return 0; +} + +int android_image_check_header(const struct andr_img_hdr *hdr) +{ + return memcmp(ANDR_BOOT_MAGIC, hdr->magic, ANDR_BOOT_MAGIC_SIZE); +} + +ulong android_image_get_end(const struct andr_img_hdr *hdr) +{ + u32 size = 0; + /* + * The header takes a full page, the remaining components are aligned + * on page boundary + */ + size += hdr->page_size; + size += ALIGN(hdr->kernel_size, hdr->page_size); + size += ALIGN(hdr->ramdisk_size, hdr->page_size); + size += ALIGN(hdr->second_size, hdr->page_size); + + return size; +} + +ulong android_image_get_kload(const struct andr_img_hdr *hdr) +{ + return hdr->kernel_addr; +} + +int android_image_get_ramdisk(const struct andr_img_hdr *hdr, + ulong *rd_data, ulong *rd_len) +{ + if (!hdr->ramdisk_size) + return -1; + *rd_data = (unsigned long)hdr; + *rd_data += hdr->page_size; + *rd_data += ALIGN(hdr->kernel_size, hdr->page_size); + + *rd_len = hdr->ramdisk_size; + return 0; +} diff --git a/common/image.c b/common/image.c index 9c6bec5..7ff27d7 100644 --- a/common/image.c +++ b/common/image.c @@ -659,10 +659,12 @@ int genimg_get_format(const void *img_addr) if (image_check_magic(hdr)) format = IMAGE_FORMAT_LEGACY; #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT) - else { - if (fdt_check_header(img_addr) == 0) - format = IMAGE_FORMAT_FIT; - } + else if (fdt_check_header(img_addr) == 0) + format = IMAGE_FORMAT_FIT; +#endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + else if (android_image_check_header(img_addr) == 0) + format = IMAGE_FORMAT_ANDROID; #endif return format; @@ -932,7 +934,15 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images, (ulong)images->legacy_hdr_os); image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len); - } else { + } +#ifdef CONFIG_ANDROID_BOOT_IMAGE + else if ((genimg_get_format(images) == IMAGE_FORMAT_ANDROID) && + (!android_image_get_ramdisk((void *)images->os.start, + &rd_data, &rd_len))) { + /* empty */ + } +#endif + else { /* * no initrd image */ |