[PATCH 1/2] arm64: zynqmp: Fix tcminit mode param

[Venkatesh Yadav Abbarapu]

While invoking "zynqmp tcminit mode" command (which is invalid command)
on U-Boot, it just works. Check the mode param, if it is valid then
only initialize the TCM.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbar...@amd.com>
---
 board/xilinx/zynqmp/cmds.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c
index e20030ecda..fff3f37807 100644
--- a/board/xilinx/zynqmp/cmds.c
+++ b/board/xilinx/zynqmp/cmds.c
@@ -187,6 +187,11 @@ static int do_zynqmp_tcm_init(struct cmd_tbl *cmdtp, int 
flag, int argc,
        if (argc != cmdtp->maxargs)
                return CMD_RET_USAGE;
 
+       if (strcmp(argv[2], "lockstep") && strcmp(argv[2], "split")) {
+               printf("mode param should be lockstep or split\n");
+               return CMD_RET_FAILURE;
+       }
+
        mode = hextoul(argv[2], NULL);
        if (mode != TCM_LOCK && mode != TCM_SPLIT) {
                printf("Mode should be either 0(lock)/1(split)\n");
-- 
2.17.1