arm64: zynqmp: Do not setup time if already setup
Newer psu_init_gpl.c/h contain clock setup. Detect if
reference clock is active. If yes, skip timer setup.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index ecdae5e..a67473f 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -155,7 +155,10 @@
{
u32 val;
- if (current_el() == 3) {
+ val = readl(&crlapb_base->timestamp_ref_ctrl);
+ val &= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
+
+ if (current_el() == 3 && !val) {
val = readl(&crlapb_base->timestamp_ref_ctrl);
val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
writel(val, &crlapb_base->timestamp_ref_ctrl);