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-rw-r--r--common/image-android.c84
1 files changed, 84 insertions, 0 deletions
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;
+}