Difference between revisions of "Winhbw"
From ESS-WIKI
(→config u-boot-imx) |
(→config u-boot-imx) |
||
| Line 25: | Line 25: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | use vi to create u-boot-imx.patch by copy & paste the following text | + | use vi/vim to create u-boot-imx.patch by copy & paste the following text |
| + | (notice: the tab char must be kept.) | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c | diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c | ||
| Line 51: | Line 52: | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
patch -p1 < u-boot-imx.patch | patch -p1 < u-boot-imx.patch | ||
| + | rm u-boot-imx.patch | ||
| + | |||
popd | popd | ||
Revision as of 09:52, 2 July 2024
Prerequisites
refer to Yocto Linux BSP Ver.A User Guide for iMX8 series
use the following settings to build one generic ROM-5722 image for iMX8MP Quad/Dual
- Get_BSP
- specify manifest file to imx8LBVA1021.xml
- Build Instructions
MC=imx8mprom5722a1UC=4G
config u-boot-imx
# development stage
devtool modify u-boot-imx
# modify arch/arm/mach-imx/imx8m/soc.c
pushd workspace/sources/u-boot-imx
use vi/vim to create u-boot-imx.patch by copy & paste the following text (notice: the tab char must be kept.)
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index c55ea8df7d..11a442befa 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -799,7 +799,12 @@ int disable_vpu_nodes(void *blob)
const char *nodes_path_8mp[] = {
"/vpu_g1@38300000",
"/vpu_g2@38310000",
- "/vpu_vc8000e@38320000"
+ "/vpu_vc8000e@38320000",
+ "/soc@0/blk-ctl@38330000",
+ "/soc@0/bus@30000000/gpc@303a0000/pgc/power-domain@19",
+ "/soc@0/bus@30000000/gpc@303a0000/pgc/power-domain@20",
+ "/soc@0/bus@30000000/gpc@303a0000/pgc/power-domain@21",
+ "/soc@0/bus@30000000/gpc@303a0000/pgc/power-domain@22"
};
if (is_imx8mq())
patch and bake
patch -p1 < u-boot-imx.patch
rm u-boot-imx.patch
popd
# check if the modification works well
bitbake u-boot-imx
config linux-imx
# insert one command into recipe, linux-imx
pushd ../sources/meta-advantech/meta-fsl-imx/recipes-kernel/linux
sed '/do_copy_defconfig_mx8/a \ mkdir -p ${B}' linux-imx_5.4.bbappend
popd
# development stage
devtool modify linux-imx
# modify arch/arm64/boot/dts/freescale/imx8mp-rom5722-a1.dts
pushd workspace/sources/linux-imx
patch -p1 << END_OF_PATCH
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-rom5722-a1.dts b/arch/arm64/boot/dts/freescale/imx8mp-rom5722-a1.dts
index ac669988ae51..54bbcc8e9ec8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-rom5722-a1.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-rom5722-a1.dts
@@ -1302,15 +1302,15 @@
};
&vpu_g1 {
- status = "okay";
+ status = "disabled";
};
&vpu_g2 {
- status = "okay";
+ status = "disabled";
};
&vpu_vc8000e {
- status = "okay";
+ status = "disabled";
};
&gpu_3d {
END_OF_PATCH
popd
# check if the modification works well
bitbake linux-imx