diff options
Diffstat (limited to 'src/soc/amd/picasso/Kconfig')
| -rw-r--r-- | src/soc/amd/picasso/Kconfig | 44 |
1 files changed, 37 insertions, 7 deletions
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig index 6d0a3efff4..5af830cc83 100644 --- a/src/soc/amd/picasso/Kconfig +++ b/src/soc/amd/picasso/Kconfig @@ -157,16 +157,46 @@ config PICASSO_UART select NO_UART_ON_SUPERIO select UART_OVERRIDE_REFCLK help - There are two UART controllers in Picasso. - The UART registers are memory-mapped. UART - controller 0 registers range from FEDC_6000h - to FEDC_6FFFh. UART controller 1 registers - range from FEDC_8000h to FEDC_8FFFh. + There are four memory-mapped UARTs controllers in Picasso at: + 0: 0xfedc9000 + 1: 0xfedca000 + 2: 0xfedc3000 + 3: 0xfedcf000 + +choice PICASSO_UART_CLOCK_SOURCE + prompt "UART Frequency" + depends on PICASSO_UART + default PICASSO_UART_48MZ + +config PICASSO_UART_48MZ + bool "48 MHz clock" + help + Select this option for the most compatibility. + +config PICASSO_UART_1_8MZ + bool "1.8432 MHz clock" + help + Select this option if an old payload or Linux ttyS0 arguments + require it. + +endchoice + +config PICASSO_UART_LEGACY + bool "Decode legacy I/O range" + depends on PICASSO_UART + 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. config CONSOLE_UART_BASE_ADDRESS - depends on CONSOLE_SERIAL + depends on CONSOLE_SERIAL && PICASSO_UART hex - default 0xfedc6000 + 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 config SMM_TSEG_SIZE hex |