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arm64: zynqmp: Do not setup time if already setup

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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>
This commit is contained in:
Michal Simek 2017-07-12 10:32:18 +02:00
parent 926870478d
commit 90a35db410
1 changed files with 4 additions and 1 deletions
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5
board/xilinx/zynqmp/zynqmp.c
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@ -155,7 +155,10 @@ int board_early_init_r(void)
{
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);