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| author | Alexander Dahl <ada@thorsis.com> | 2024-02-02 16:12:06 +0100 |
|---|---|---|
| committer | Michael Olbrich <m.olbrich@pengutronix.de> | 2024-02-04 22:18:26 +0100 |
| commit | d2be5e8d92708ef2c0fdcfa86c9d351556379537 (patch) | |
| tree | 8777ac42b0ccedf9459ea8f97ed95284b5c1321b /scripts/lib | |
| parent | 12cafdf4df8fbf127757805f7d4c65faa861bb98 (diff) | |
| download | ptxdist-d2be5e8d92708ef2c0fdcfa86c9d351556379537.tar.gz ptxdist-d2be5e8d92708ef2c0fdcfa86c9d351556379537.tar.xz | |
kernel-fit: Allow using 'kernel_noload' as sub-image type
Multi platform kernels built by the kernel-fit rule before are not
usable in U-Boot, which adheres more strictly to the Flat Image Tree
(FIT) spec than barebox does. For image sub-type 'kernel' U-Boot
expects valid 'load' and 'entry' addresses. Setting those addresses to
a generic value is impossible however for generic kernels, e.g. the
DistroKit v7a kernel needs different addresses on at91 SAMA5 than
on i.MX6. barebox circumvents this by ignoring missing 'load' and
'entry' addresses and finding a suitable address by itself. For using
generic kernels in U-Boot you need sub-image type 'kernel_noload' and
dummy addresses, which is also supported in barebox from v2024.01.0
release onwards.
Link: https://github.com/open-source-firmware/flat-image-tree/releases/download/v0.8/fit-specification-v0.8.pdf
Link: https://lore.barebox.org/barebox/20231129203106.2417486-1-a.fatoum@pengutronix.de/
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Message-Id: <20240202151209.2535721-3-ada@thorsis.com>
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Diffstat (limited to 'scripts/lib')
| -rw-r--r-- | scripts/lib/ptxd_make_fit_image.sh | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/scripts/lib/ptxd_make_fit_image.sh b/scripts/lib/ptxd_make_fit_image.sh index dd0f63b7b..4b99e6fbf 100644 --- a/scripts/lib/ptxd_make_fit_image.sh +++ b/scripts/lib/ptxd_make_fit_image.sh @@ -19,20 +19,30 @@ ptxd_make_image_fit_its() { kernel { description = "kernel"; data = /incbin/("${image_kernel}"); - type = "kernel"; arch = "$(ptxd_get_ptxconf PTXCONF_ARCH_STRING)"; os = "linux"; compression = "none"; EOF - if [ -n "$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_LOAD)" ]; then + if [ -n "$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_NOLOAD)" ]; then cat << EOF - load = <$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_LOAD)>; + type = "kernel_noload"; + load = <0x00000000>; + entry = <0x00000000>; EOF - fi - if [ -n "$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_ENTRY)" ]; then + else cat << EOF + type = "kernel"; +EOF + if [ -n "$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_LOAD)" ]; then + cat << EOF + load = <$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_LOAD)>; +EOF + fi + if [ -n "$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_ENTRY)" ]; then + cat << EOF entry = <$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_ENTRY)>; EOF + fi fi cat << EOF hash-1 { |