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| author | Raul E Rangel <rrangel@chromium.org> | 2021-05-11 13:08:33 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-05-14 09:01:34 +0000 |
| commit | e6b1d922d52c6b084ee46245c0f279cf96fa7142 (patch) | |
| tree | 4667818767cc795ea98d54ebca3b70097f976c16 | |
| parent | d5245e03faca54d9602c7c0cfa95dcee1a794bdb (diff) | |
| download | coreboot-e6b1d922d52c6b084ee46245c0f279cf96fa7142.tar.xz | |
mb/amd/majolica: Disable IO ports 0x60/0x64
I suspect there is additional initialization required to enable the
8042 keyboard controller on the EC. By removing the range we no longer
encounter long 20 second delays when reading the IO ports. Since
depthcharge polls the IO ports it makes it seem like depthcharge locked
up.
BUG=b:182100027
TEST=Boot majolica with depthcharge to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I56a7eb4200e4615e1b4d9f14594d64f93e031a54
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54071
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
| -rw-r--r-- | src/mainboard/amd/majolica/devicetree.cb | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/mainboard/amd/majolica/devicetree.cb b/src/mainboard/amd/majolica/devicetree.cb index 422c009fec..0f540a151b 100644 --- a/src/mainboard/amd/majolica/devicetree.cb +++ b/src/mainboard/amd/majolica/devicetree.cb @@ -2,8 +2,7 @@ chip soc/amd/cezanne register "common_config.espi_config" = "{ - .std_io_decode_bitmap = ESPI_DECODE_IO_0X60_0X64_EN | ESPI_DECODE_IO_0x80_EN - | ESPI_DECODE_IO_0X2E_0X2F_EN, + .std_io_decode_bitmap = ESPI_DECODE_IO_0x80_EN | ESPI_DECODE_IO_0X2E_0X2F_EN, .io_mode = ESPI_IO_MODE_QUAD, .op_freq_mhz = ESPI_OP_FREQ_16_MHZ, .crc_check_enable = 1, |