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android: boot: ramdisk: support vendor ramdisk

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Version 3 and 4 of boot image header introduced
vendor boot ramdisk: Please check include/android_image.h
for details.

The ramdisk is now split into a generic ramdisk in boot image
and a vendor ramdisk in vendor boot image.

Support the new vendor ramdisk.

Signed-off-by: Safae Ouajih <souajih@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Safae Ouajih
2023-02-06 00:50:13 +01:00
committed by Tom Rini
parent 1115027d2f
commit c79a2e6823
2 changed files with 13 additions and 4 deletions
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13
boot/image-android.c
View File

@@ -25,6 +25,7 @@ static void android_boot_image_v3_v4_parse_hdr(const struct andr_boot_img_hdr_v3
data->kcmdline = hdr->cmdline;
data->header_version = hdr->header_version;
data->ramdisk_ptr = env_get_ulong("ramdisk_addr_r", 16, 0);
/*
* The header takes a full page, the remaining components are aligned
@@ -322,10 +323,11 @@ ulong android_image_get_kcomp(const struct andr_boot_img_hdr_v0 *hdr,
return image_decomp_type(p, sizeof(u32));
}
int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr,
const void *vendor_boot_img, ulong *rd_data, ulong *rd_len)
int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img,
ulong *rd_data, ulong *rd_len)
{
struct andr_image_data img_data = {0};
ulong ramdisk_ptr;
if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
return -EINVAL;
@@ -334,6 +336,13 @@ int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr,
*rd_data = *rd_len = 0;
return -1;
}
if (img_data.header_version > 2) {
ramdisk_ptr = img_data.ramdisk_ptr;
memcpy((void *)(ramdisk_ptr), (void *)img_data.vendor_ramdisk_ptr,
img_data.vendor_ramdisk_size);
memcpy((void *)(ramdisk_ptr + img_data.vendor_ramdisk_size),
(void *)img_data.ramdisk_ptr, img_data.boot_ramdisk_size);
}
printf("RAM disk load addr 0x%08lx size %u KiB\n",
img_data.ramdisk_ptr, DIV_ROUND_UP(img_data.ramdisk_size, 1024));

4
include/image.h
View File

@@ -1782,8 +1782,8 @@ int android_image_get_kernel(const struct andr_boot_img_hdr_v0 *hdr,
* @rd_len: Pointer to a ulong variable, will hold ramdisk length
* Return: 0 if succeeded, -1 if ramdisk size is 0
*/
int android_image_get_ramdisk(const struct andr_boot_img_hdr_v0 *hdr,
const void *vendor_boot_img, ulong *rd_data, ulong *rd_len);
int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img,
ulong *rd_data, ulong *rd_len);
/**
* android_image_get_second() - Extracts the secondary bootloader address