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hw/arm/boot: Allow boards to provide an fdt blob

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If no fdt is provided on command line and the new field
get_dtb in struct arm_boot_info is set then call it to
get a device tree blob.

Signed-off-by: John Rigby <john.rigby@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1385140638-10444-4-git-send-email-peter.maydell@linaro.org
[PMM: minor tweaks and cleanup]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
John Rigby 2013-11-22 17:17:10 +00:00 • committed by Peter Maydell
parent ef6de70ea8
commit 0fb79851c3
2 changed files with 27 additions and 12 deletions
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7
include/hw/arm/arm.h
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@ -50,6 +50,13 @@ struct arm_boot_info {
const struct arm_boot_info *info);
void (*secondary_cpu_reset_hook)(ARMCPU *cpu,
const struct arm_boot_info *info);
/* if a board is able to create a dtb without a dtb file then it
* sets get_dtb. This will only be used if no dtb file is provided
* by the user. On success, sets *size to the length of the created
* dtb, and returns a pointer to it. (The caller must free this memory
* with g_free() when it has finished with it.) On failure, returns NULL.
*/
void *(*get_dtb)(const struct arm_boot_info *info, int *size);
/* if a board needs to be able to modify a device tree provided by
* the user it should implement this hook.
*/