soc/amd/common: Remove eSPI decode workaround
We no longer lock up if we clear the port 80 bit. I'm assuming this was
fixed when we configured the PSP to no longer setup eSPI.
BUG=b:183974365
TEST=Boot guybrush to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I1530d08974d42e0b06eb783521dea32fca752d85
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52677
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/soc/amd/common/block/lpc/espi_util.c b/src/soc/amd/common/block/lpc/espi_util.c
index 82f2a85..7752eb5 100644
--- a/src/soc/amd/common/block/lpc/espi_util.c
+++ b/src/soc/amd/common/block/lpc/espi_util.c
@@ -103,11 +103,7 @@
unsigned int idx;
/* First turn off all enable bits, then zero base, range, and size registers */
- /*
- * There is currently a bug where the SMU will lock up at times if the port80h enable
- * bit is cleared. See b/183974365
- */
- espi_write16(ESPI_DECODE, (espi_read16(ESPI_DECODE) & ESPI_DECODE_IO_0x80_EN));
+ espi_write16(ESPI_DECODE, 0);
for (idx = 0; idx < ESPI_GENERIC_IO_WIN_COUNT; idx++) {
espi_write16(ESPI_IO_RANGE_BASE(idx), 0);