diff options
| -rw-r--r-- | arch/arm/cpu/armv7/zynq/slcr.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index 2521589c07..05f4099aae 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -129,11 +129,18 @@ out: void zynq_slcr_devcfg_disable(void) { + u32 reg_val; + zynq_slcr_unlock(); /* Disable AXI interface by asserting FPGA resets */ writel(0xF, &slcr_base->fpga_rst_ctrl); + /* Disable Level shifters before setting PS-PL */ + reg_val = readl(&slcr_base->lvl_shftr_en); + reg_val &= ~0xF; + writel(reg_val, &slcr_base->lvl_shftr_en); + /* Set Level Shifters DT618760 */ writel(0xA, &slcr_base->lvl_shftr_en); |