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config SOC_AMD_COMMON_BLOCK_UART
bool
default n
help
Select this option to add the common functions for setting up the
UART configuration to the build.
if SOC_AMD_COMMON_BLOCK_UART
config AMD_SOC_CONSOLE_UART
bool "Use integrated AMD SoC UART controller for console"
default n
select DRIVERS_UART_8250MEM
select DRIVERS_UART_8250MEM_32
select NO_UART_ON_SUPERIO
select UART_OVERRIDE_REFCLK
help
There are four memory-mapped UARTs controllers at:
0: 0xfedc9000
1: 0xfedca000
2: 0xfedc3000
3: 0xfedcf000
choice
prompt "UART Frequency"
depends on AMD_SOC_CONSOLE_UART
default AMD_SOC_UART_48MZ
config AMD_SOC_UART_48MZ
bool "48 MHz clock"
help
Select this option for the most compatibility.
config AMD_SOC_UART_1_8MZ
bool "1.8432 MHz clock"
help
Select this option if an old payload or Linux ttyS0 arguments require
a 1.8432 MHz clock source for the UART.
endchoice
config AMD_SOC_UART_LEGACY
bool "Decode legacy I/O range"
help
Assign I/O 3F8, 2F8, etc. to an integrated AMD SoC 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 && AMD_SOC_CONSOLE_UART
hex
default 0xfedc9000 if UART_FOR_CONSOLE = 0
default 0xfedca000 if UART_FOR_CONSOLE = 1
default 0xfedc3000 if UART_FOR_CONSOLE = 2
default 0xfedcf000 if UART_FOR_CONSOLE = 3
endif # SOC_AMD_COMMON_BLOCK_UART
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