Refresh the BeagleBone Black image
Barebox won't build (it complains about <linux/list.h> not found and I
cannot easily solve that), so let's go back to U-Boot.
The 2019.01 U-Boot release is buggy in its recognizing of partition
tables (`fatls` complains, for example), and the whole thing reverts to
a "legacy boot", so let's use the latest release, the 2019.07.
I'm also giving up on the g_cdc module because the board that I'm using
has a microUSB header for the debug console.
- FIXME: Properly distinguish between an SD-card boot and an eMMC boot
(right now it is hardcoded to boot from the SD card)
- FIXME: test Rauc updates once eMMC works
- FIXME: activate watchdog from U-Boot
Change-Id: I013f145cf2fe24e41ea0dafd225e3feb1854712c
diff --git a/board/czechlight/beaglebone/boot.scr.txt b/board/czechlight/beaglebone/boot.scr.txt
new file mode 100644
index 0000000..9a8adc7
--- /dev/null
+++ b/board/czechlight/beaglebone/boot.scr.txt
@@ -0,0 +1,8 @@
+setenv bootargs root=/dev/mmcblk0p${rauc_part} console=ttyO0,115200n8 init=/sbin/init-czechlight.sh rauc.slot=${rauc_slot} czechlight=${czechlight} systemd.machine_id=${machineid} panic=10 oops=panic
+if test -n ${czechlight} && load mmc 0:${rauc_part} ${fdt_addr_r} /boot/${czechlight}-bbb.dtb; then
+ echo "DTS: ${czechlight}-bbb"
+else
+ load mmc 0:${rauc_part} ${fdt_addr_r} /boot/czechlight-bbb.dtb || reset
+fi
+load mmc 0:${rauc_part} ${kernel_addr_r} /boot/zImage || reset
+bootz ${kernel_addr_r} - ${fdt_addr_r} || reset