soc/amd/picasso: Clean up legacy UART config
Clean up configuration of the legacy UART and add Kconfig options for
the mapping between UART and legacy I/O decode.
BUG=b:143283592
BUG=b:153675918
TEST=Linux detects an additional legacy serial port for each active MMIO
one if PICASSO_UART_LEGACY is selected.
BRANCH=zork
Signed-off-by: Rob Barnes <robbarnes@google.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Id08ff6428d4019303ebb6e44e13aba480cf1fde2
Reviewed-on: https://chromium-review.googlesource.com/2037891
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40322
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index 29ebc6d..3b12089 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -308,12 +308,10 @@
config PICASSO_UART_LEGACY
bool "Decode legacy I/O range"
- depends on PICASSO_CONSOLE_UART # TODO: shouldn't depend on this
help
- Assign I/O 3F8, 2F8, etc. to a Picasso UART. Only a single UART may
- decode legacy addresses and this option enables the one used for the
- console. A UART accessed with I/O does not allow all the features
- of MMIO. The MMIO decode is still present when this option is used.
+ Assign I/O 3F8, 2F8, etc. to a Picasso UART. A UART accessed with I/O
+ does not allow all the features of MMIO. The MMIO decode is still
+ present when this option is used.
config CONSOLE_UART_BASE_ADDRESS
depends on CONSOLE_SERIAL && PICASSO_CONSOLE_UART