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Support loading correct DTB for RPi 3 model B+

Browse Source 
U-Boot sets the variable fdtfile to the correct file name for the
detected hardware revision. Use this in the boot script to load either
the 3-b or 3-b-plus DTB

Signed-off-by: Richard Connon <richard@connon.me.uk>
This commit is contained in:
Richard Connon 2019-05-26 10:05:10 +01:00
parent b97f47b0aa
commit 5ffbfbbf67
3 changed files with 7 additions and 7 deletions
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3
tools/mkimage-rpi3/Dockerfile
View File

@ -24,8 +24,7 @@ RUN rm -rf /out/etc/apk /out/lib/apk /out/var/cache
# u-boot compile. The patch is needed to handle larger kernels
ENV UBOOT_COMMIT=v2019.04
COPY u-boot.patch .
RUN git clone -b $UBOOT_COMMIT --depth 1 https://github.com/u-boot/u-boot.git && \
cd /u-boot
RUN git clone -b $UBOOT_COMMIT --depth 1 https://github.com/u-boot/u-boot.git
WORKDIR /u-boot
RUN patch -p 1 < /u-boot.patch && \
make rpi_3_defconfig all && \

8
tools/mkimage-rpi3/boot.script
View File

@ -1,9 +1,9 @@
setenv bootargs "dwc_otg.lpm_enable=0 earlyprintk console=tty1 console=ttyS0,115200 root=/dev/ram0 rw"
setenv dtbfile bcm2837-rpi-3-b.dtb
setenv loadaddr 0x01000000
setenv machid 0x00000c42
saveenv
fatload mmc 0:1 ${kernel_addr_r} kernel.uimg
fatload mmc 0:1 ${fdt_addr_r} ${dtbfile}
fatload mmc 0:1 ${loadaddr} kernel.uimg
fatload mmc 0:1 ${fdt_addr_r} dtb/${fdtfile}
fatload mmc 0:1 ${ramdisk_addr_r} initrd.uimg
bootm ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
bootm ${loadaddr} ${ramdisk_addr_r} ${fdt_addr_r}

3
tools/mkimage-rpi3/make-rpi3
View File

@ -14,7 +14,8 @@ cd /files
cd /
# copy/convert files
cp /files/boot/dtb/broadcom/bcm2837-rpi-3-b.dtb /boot
mkdir -p /boot/dtb/broadcom
cp /files/boot/dtb/broadcom/bcm2837-rpi-3-b*.dtb /boot/dtb/broadcom
/bin/mkimage -A arm64 -O linux -T kernel -C gzip -a 0x80000 -e 0x80000 \
-d /files/boot/kernel /boot/kernel.uimg >> /boot/uboot.log
/bin/mkimage -A arm64 -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n RPi3 \