grub2/SOURCES/0029-Add-devicetree-loading.patch
2021-10-08 11:38:30 +00:00

69 lines
2.0 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Tue, 14 Jan 2014 13:12:23 -0500
Subject: [PATCH] Add devicetree loading
Signed-off-by: Peter Jones <pjones@redhat.com>
Switch to use APM Mustang device tree, for hardware testing.
Signed-off-by: David A. Marlin <d.marlin@redhat.com>
Use the default device tree from the grub default file
instead of hardcoding a value.
Signed-off-by: David A. Marlin <dmarlin@redhat.com>
---
util/grub-mkconfig.in | 3 ++-
util/grub.d/10_linux.in | 15 +++++++++++++++
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in
index b0a8626dd1c..f68d4925ee6 100644
--- a/util/grub-mkconfig.in
+++ b/util/grub-mkconfig.in
@@ -254,7 +254,8 @@ export GRUB_DEFAULT \
GRUB_ENABLE_CRYPTODISK \
GRUB_BADRAM \
GRUB_OS_PROBER_SKIP_LIST \
- GRUB_DISABLE_SUBMENU
+ GRUB_DISABLE_SUBMENU \
+ GRUB_DEFAULT_DTB
if test "x${grub_cfg}" != "x"; then
rm -f "${grub_cfg}.new"
diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
index 87a7da34982..233754ff296 100644
--- a/util/grub.d/10_linux.in
+++ b/util/grub.d/10_linux.in
@@ -153,6 +153,13 @@ EOF
sed "s/^/$submenu_indentation/" << EOF
echo '$(echo "$message" | grub_quote)'
initrd $(echo $initrd_path)
+EOF
+ fi
+ if test -n "${fdt}" ; then
+ message="$(gettext_printf "Loading fdt ...")"
+ sed "s/^/$submenu_indentation/" << EOF
+ echo '$(echo "$message" | grub_quote)'
+ devicetree ${rel_dirname}/${fdt}
EOF
fi
sed "s/^/$submenu_indentation/" << EOF
@@ -236,6 +243,14 @@ while [ "x$list" != "x" ] ; do
gettext_printf "Found initrd image: %s\n" "$(echo $initrd_display)" >&2
fi
+ fdt=
+ for i in "dtb-${version}" "dtb-${alt_version}"; do
+ if test -f "${dirname}/${i}/${GRUB_DEFAULT_DTB}" ; then
+ fdt="${i}/${GRUB_DEFAULT_DTB}"
+ break
+ fi
+ done
+
config=
for i in "${dirname}/config-${version}" "${dirname}/config-${alt_version}" "/etc/kernels/kernel-config-${version}" ; do
if test -e "${i}" ; then