[PATCH] arm: support booting of uimages with as barebox payload.

[PATCH] arm: support booting of uimages with as barebox payload.

[Christian Kapeller]

Packing barebox within an uimage gives us integrity checking.

Generate the image with:
./scripts/mkimage -A arm -O barebox -T firmware -C none -d barebox.bin -a 0xffffffff barebox.uimage

Signed-off-by: Christian Kapeller <christian.kapeller@cmotion.eu>
---
 arch/arm/lib/bootm.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 3a00437..791efc2 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -117,6 +117,13 @@ static struct image_handler rawimage_handler = {
 	.filetype = filetype_unknown,
 };
 
+static struct image_handler bbuimage_handler = {
+	.name = "ARM barebox uImage",
+	.bootm = do_bootm_linux,
+	.filetype = filetype_uimage,
+	.ih_os = IH_OS_BAREBOX,
+};
+
 struct zimage_header {
 	u32	unused[9];
 	u32	magic;
@@ -470,6 +477,7 @@ static int armlinux_register_image_handler(void)
 	register_image_handler(&uimage_handler);
 	register_image_handler(&rawimage_handler);
 	register_image_handler(&zimage_handler);
+	register_image_handler(&bbuimage_handler);
 	if (IS_BUILTIN(CONFIG_CMD_BOOTM_AIMAGE)) {
 		register_image_handler(&aimage_handler);
 		binfmt_register(&binfmt_aimage_hook);
-- 
1.7.5.4


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Re: [PATCH] arm: support booting of uimages with as barebox payload.

[Jean-Christophe PLAGNIOL-VILLARD]

On 13:23 Tue 17 Jul     , Christian Kapeller wrote:
> Packing barebox within an uimage gives us integrity checking.
> 
> Generate the image with:
> ./scripts/mkimage -A arm -O barebox -T firmware -C none -d barebox.bin -a 0xffffffff barebox.uimage
> 
> Signed-off-by: Christian Kapeller <christian.kapeller@cmotion.eu>
> ---
boot it as a linux kernel

it will work

Best Regards,
J.

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Re: [PATCH] arm: support booting of uimages with as barebox payload.

[Christian Kapeller]

On 07/17/2012 02:49 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 13:23 Tue 17 Jul     , Christian Kapeller wrote:
>> Packing barebox within an uimage gives us integrity checking.
>>
>> Generate the image with:
>> ./scripts/mkimage -A arm -O barebox -T firmware -C none -d barebox.bin -a 0xffffffff barebox.uimage
>>
>> Signed-off-by: Christian Kapeller <christian.kapeller@cmotion.eu>
>> ---
> boot it as a linux kernel
> 
> it will work

You are right, it does. But then, I am asking myself, why is there a OS
definition for 'barebox', when we aren't using it in the first place?

Regards,
Christian

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Re: [PATCH] arm: support booting of uimages with as barebox payload.

[Sascha Hauer]

On Tue, Jul 17, 2012 at 03:23:27PM +0200, Christian Kapeller wrote:
> On 07/17/2012 02:49 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > On 13:23 Tue 17 Jul     , Christian Kapeller wrote:
> >> Packing barebox within an uimage gives us integrity checking.
> >>
> >> Generate the image with:
> >> ./scripts/mkimage -A arm -O barebox -T firmware -C none -d barebox.bin -a 0xffffffff barebox.uimage
> >>
> >> Signed-off-by: Christian Kapeller <christian.kapeller@cmotion.eu>
> >> ---
> > boot it as a linux kernel
> > 
> > it will work
> 
> You are right, it does. But then, I am asking myself, why is there a OS
> definition for 'barebox', when we aren't using it in the first place?

It's derived from U-Boot where it initially was:

#define IH_OS_U_BOOT         17      /* Firmware     */

When renaming U-Boot to barebox this was one of the occurences of
'U_BOOT' that shouldn't have been renamed.

Sascha

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