[PATCH] xilinx: zynqmp: Add bootmenu support

[Michal Simek]

From: John Vicky Vykuntapu <johnvicky.vykuntapu at amd.com>

Popup the bootmenu for 5 sec with default boot options to CC on AMD CCs and
default to SOM on others.
Users can anytime disable the bootmenu by setting the variable
enable_bootmenu=0 in zynqmp_kria.env or setup it up at run time and save
variables to NV memory.

The patch is also fixing issue created by commit 4c7363068651 ("cmd:
setexpr: fix no matching string in gsub return empty value") which has
changed return value from setexpr command (Before this commit when
matching string wasn't found command return 1 that's why was possible to
use with if).

Signed-off-by: John Vicky Vykuntapu <johnvicky.vykuntapu at amd.com>
Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 board/xilinx/zynqmp/zynqmp_kria.env | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/board/xilinx/zynqmp/zynqmp_kria.env b/board/xilinx/zynqmp/zynqmp_kria.env
index 49ef3e7d7532..d0e431ebb46f 100644
--- a/board/xilinx/zynqmp/zynqmp_kria.env
+++ b/board/xilinx/zynqmp/zynqmp_kria.env
@@ -49,9 +49,19 @@ usb_boot_devices='usb0 usb1 usb2 usb3 usb4'
 som_cc_boot=if test ${card1_name} = SCK-KV-G; then setenv boot_targets mmc1 ${usb_boot_devices} pxe dhcp jtag && run distro_bootcmd; elif test ${card1_name} = SCK-KR-G; then setenv boot_targets ${usb_boot_devices} pxe dhcp jtag && run distro_bootcmd; else test ${card1_name} = SCK-KD-G; setenv boot_targets ${usb_boot_devices} pxe dhcp jtag && run distro_bootcmd; fi;"
 som_mmc_boot=setenv boot_targets mmc0 && run distro_bootcmd
 
+# To disable bootmenu set enable_bootmenu=0
+enable_bootmenu=1
+check_cc_for_default_boot=if test ${card1_name} = SCK-KV-G || test ${card1_name} = SCK-KR-G || test ${card1_name} = SCK-KD-G; then setenv bootmenu_default 1; else setenv bootmenu_default 0; fi
+som_bootmenu=if test ${enable_bootmenu} = 1; then run check_cc_for_default_boot; bootmenu; else run som_mmc_boot; fi
+
 k26_starter=SMK-K26-XCL2G
 k24_starter=SMK-K24-XCL2G
-bootcmd=setenv model $board_name && if setexpr model gsub .*$k24_starter* $k24_starter || setexpr model gsub .*$k26_starter* $k26_starter; then run som_cc_boot; else run som_mmc_boot; run som_cc_boot; fi
+bootcmd=setenv model $board_name; setexpr model gsub ".*${k24_starter}.*" starter; setexpr model gsub ".*${k26_starter}.*" starter; if test ${model} = "starter"; then run som_cc_boot; else run som_bootmenu; fi
+
+# Boot menu
+bootmenu_0=eMMC Boot=run som_mmc_boot
+bootmenu_1=SD Boot=run som_cc_boot
+bootmenu_delay=5
 
 usb_hub_init=mw 1000 0056 && sleep 1 && i2c write 1000 2d aa 2 -s
 
-- 
2.43.0