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ARM64: zynqmp: Fix USB ulpi phy sequence
author
Michal Simek
<michal.simek@xilinx.com>
Tue, 16 Aug 2016 13:40:05 +0000
(15:40 +0200)
committer
Michal Simek
<michal.simek@xilinx.com>
Thu, 22 Sep 2016 05:33:21 +0000
(07:33 +0200)
It should be enough to call low(5us)->high pulse for all cases
to provide proper reset. There is no need to call high->low->high.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
arch/arm/cpu/armv8/zynqmp/spl.c
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diff --git
a/arch/arm/cpu/armv8/zynqmp/spl.c
b/arch/arm/cpu/armv8/zynqmp/spl.c
index
552f577
..
04e1905
100644
(file)
--- a/
arch/arm/cpu/armv8/zynqmp/spl.c
+++ b/
arch/arm/cpu/armv8/zynqmp/spl.c
@@
-37,10
+37,6
@@
void board_init_f(ulong dummy)
static void ps_mode_reset(ulong mode)
{
- writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT |
- mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
- &crlapb_base->boot_pin_ctrl);
- udelay(1);
writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
&crlapb_base->boot_pin_ctrl);
udelay(5);