u-boot-xlnx-scr: Add KERNEL_COMMAND_APPEND

Allow appending to the kernel command line in boot.scr

Signed-off-by: John Toomey <john.toomey@amd.com>
Signed-off-by: Mark Hatle <mark.hatle@amd.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-scr.bb b/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-scr.bb
index 187b01d9..b26f23ff 100644
--- a/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-scr.bb
+++ b/meta-xilinx-core/recipes-bsp/u-boot/u-boot-xlnx-scr.bb
@@ -172,6 +172,9 @@ KERNEL_ROOT_SD ?= "root=/dev/\${bootdev}${PARTNUM} ro rootwait"
 # Set Kernel root filesystem parameter for JTAG/QSPI/OSPI/NAND(using RAMDISK) boot
 KERNEL_ROOT_RAMDISK ?= "root=/dev/ram0 rw"
 
+# Append the kernel command line
+KERNEL_COMMAND_APPEND ?= ""
+
 BITSTREAM_LOAD_ADDRESS ?= "0x100000"
 
 do_configure[noexec] = "1"
@@ -231,6 +234,7 @@ do_compile() {
         -e 's/@@PARTNUM@@/${PARTNUM}/' \
         -e 's:@@KERNEL_ROOT_SD@@:${KERNEL_ROOT_SD}:' \
         -e 's:@@KERNEL_ROOT_RAMDISK@@:${KERNEL_ROOT_RAMDISK}:' \
+        -e 's:@@KERNEL_COMMAND_APPEND@@:${KERNEL_COMMAND_APPEND}:' \
         "${WORKDIR}/boot.cmd.${BOOTMODE}${BOOTFILE_EXT}" > "${WORKDIR}/boot.cmd"
     mkimage -A arm -T script -C none -n "Boot script" -d "${WORKDIR}/boot.cmd" boot.scr
     sed -e 's/@@KERNEL_IMAGETYPE@@/${KERNEL_IMAGETYPE}/' \