[PATCH] image: android: fix abootimg support

[Christian Gmeiner]

abootimg creates images where all load addresses are 0.

 Android Boot Image Info:
* file name = artifacts/fastboot.img
* image size = 31381504 bytes (29.93 MB)
  page size  = 2048 bytes
* Boot Name = ""
* kernel size       = 9397406 bytes (8.96 MB)
  ramdisk size      = 21981144 bytes (20.96 MB)
* load addresses:
  kernel:       0x00000000
  ramdisk:      0x00000000
  tags:         0x00000000

Without this fix we end in a data abort:

Booting kernel at 0x15000000...
*  kernel: cmdline image address = 0x15000000
Kernel load addr 0x00000000 size 9178 KiB
Kernel command line: ip=dhcp console=ttymxc0,115200n8
   kernel data at 0x15000800, len = 0x008f649e (9397406)
*  ramdisk: cmdline image address = 0x15000000
RAM disk load addr 0x00000000 size 21473 KiB
   ramdisk start = 0x158f7000, ramdisk end = 0x16def35c
   kernel loaded at 0x00000000, end = 0x00000000
   Loading Kernel Image
data abort
pc : [<8ff8c004>]	   lr : [<5d7ac70f>]
sp : 8f57ed64  ip : 48f17668	 fp : 00000000
r10: 00000002  r9 : 8f58aed0	 r8 : 03fa4c58
r7 : 5e842497  r6 : fbe73965	 r5 : 7c459955  r4 : df020fde
r3 : 1b7aa45b  r2 : 007f23fe	 r1 : 15104820  r0 : 00104000
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32 (T)
Code: f07c e8b1 51f8 3a20 (e8a0) 51f8
Resetting CPU ...
resetting ...

Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
---
 common/image-android.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/common/image-android.c b/common/image-android.c
index 6af9baa121..18f7c8db03 100644
--- a/common/image-android.c
+++ b/common/image-android.c
@@ -33,6 +33,13 @@ static ulong android_image_get_kernel_addr(const struct andr_img_hdr *hdr)
 	if (hdr->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR)
 		return (ulong)hdr + hdr->page_size;
 
+	/*
+	 * abootimg creates images where all load addresses are 0
+	 * and we need to fix them.
+	 */
+	if (hdr->kernel_addr == 0 && hdr->ramdisk_addr == 0)
+		return env_get_ulong("kernel_addr_r", 16, 0);
+
 	return hdr->kernel_addr;
 }
 
-- 
2.26.2