diff options
| author | Milan Obuch <u-boot@dino.sk> | 2020-01-19 22:33:30 -0300 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2020-02-28 12:04:10 +0100 |
| commit | 1a4bf17b0298257b35611453e44f53c72a55f8a7 (patch) | |
| tree | fa58548dd36712cd2a84f5fb777f0adb2c9bf735 | |
| parent | b6779274f2bdbcde2c7fa3a2f90d1db55c02951f (diff) | |
arm: zynq: zybo z7: fix MIO init issue
The board has two push button connected to MIO pins
50 and 51, which have a pull-down resistor and are
connected to 1.8V when pressed.
These two pins are wrongly initialized with internal
pull-up enabled so they are reported as 1 all the time
with no change when pressed.
Disable the internal pull-up to fix the issue.
Signed-off-by: Milan Obuch <u-boot@dino.sk>
Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| -rw-r--r-- | board/xilinx/zynq/zynq-zybo-z7/ps7_init_gpl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/xilinx/zynq/zynq-zybo-z7/ps7_init_gpl.c b/board/xilinx/zynq/zynq-zybo-z7/ps7_init_gpl.c index 7c6bc9fa3f..a376ba574e 100644 --- a/board/xilinx/zynq/zynq-zybo-z7/ps7_init_gpl.c +++ b/board/xilinx/zynq/zynq-zybo-z7/ps7_init_gpl.c @@ -219,8 +219,8 @@ static unsigned long ps7_mio_init_data_3_0[] = { EMIT_MASKWRITE(0xF80007BC, 0x00003F01U, 0x00001201U), EMIT_MASKWRITE(0xF80007C0, 0x00003FFFU, 0x000012E0U), EMIT_MASKWRITE(0xF80007C4, 0x00003FFFU, 0x000012E1U), - EMIT_MASKWRITE(0xF80007C8, 0x00003FFFU, 0x00001200U), - EMIT_MASKWRITE(0xF80007CC, 0x00003FFFU, 0x00001200U), + EMIT_MASKWRITE(0xF80007C8, 0x00003FFFU, 0x00000200U), + EMIT_MASKWRITE(0xF80007CC, 0x00003FFFU, 0x00000200U), EMIT_MASKWRITE(0xF80007D0, 0x00003FFFU, 0x00001280U), EMIT_MASKWRITE(0xF80007D4, 0x00003FFFU, 0x00001280U), EMIT_MASKWRITE(0xF8000830, 0x003F003FU, 0x002F0037U), |