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authorStephen Warren <swarren@nvidia.com>2011-11-10 13:17:53 -0700
committerStefan Roese <sr@denx.de>2011-12-01 09:45:35 +0100
commitb9b50e89d317c58becd0e2d7fac2e21e3a81dd0a (patch)
tree3d232af9ba19de272563e24d8f12fc8293b6a2bf /tools
parenta63d9652757605ec5f7104addc5d38bf10ba8671 (diff)
downloadu-boot-linaro-stable-b9b50e89d317c58becd0e2d7fac2e21e3a81dd0a.tar.gz
image: Implement IH_TYPE_KERNEL_NOLOAD
The legacy uImage format includes an absolute load and entry-point address. When bootm operates on a kernel uImage in memory that isn't loaded at the address in the image's load address, U-Boot will copy the image to its address in the header. Some kernel images can actually be loaded and used at any arbitrary address. An example is an ARM Linux kernel zImage file. To represent this capability, IH_TYPE_KERNEL_NOLOAD is implemented, which operates just like IH_TYPE_KERNEL, except that the load address header is ignored, and U-Boot does not copy the image to its load address, but rather uses it in-place. This is useful when sharing a single (uImage-wrapped) zImage across multiple boards with different memory layouts; in this case, a specific load address need not be picked when creating the uImage, but instead is selected by the board-specific U-Boot environment used to load and boot that image. v2: Rename from IH_TYPE_KERNEL_ANYLOAD to IH_TYPE_KERNEL_NOLOAD. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'tools')
-rw-r--r--tools/default_image.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/default_image.c b/tools/default_image.c
index 6ea3b462c..e9d072975 100644
--- a/tools/default_image.c
+++ b/tools/default_image.c
@@ -35,7 +35,8 @@ static image_header_t header;
static int image_check_image_types(uint8_t type)
{
- if ((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT))
+ if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
+ (type == IH_TYPE_KERNEL_NOLOAD))
return EXIT_SUCCESS;
else
return EXIT_FAILURE;