From 6ec72c9b4f4a903d9a451bc17629e679399aa9ee Mon Sep 17 00:00:00 2001 From: Lee Leahy Date: Sat, 7 May 2016 09:04:46 -0700 Subject: drivers/uart: Use uart_platform_refclk for all UART models Allow the platform to override the input clock for the UART by implementing the routine uart_platform_refclk and setting the Kconfig value UART_OVERRIDE_REFCLK. Provide a default uart_platform_refclk routine which is disabled when UART_OVERRIDE_REFCLK is selected. This works around ROMCC not supporting weak routines. Testing on Galileo: * Edit the src/mainboard/intel/galileo/Makefile.inc file: * Add "select ADD_FSP_PDAT_FILE" * Add "select ADD_FSP_RAW_BIN" * Add "select ADD_RMU_FILE" * Place the FSP.bin file in the location specified by CONFIG_FSP_FILE * Place the pdat.bin files in the location specified by CONFIG_FSP_PDAT_FILE * Place the rmu.bin file in the location specified by CONFIG_RMU_FILE * Build EDK2 CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc to generate UEFIPAYLOAD.fd * Testing is successful when CorebootPayloadPkg is able to properly initialize the serial port without using built-in values. Change-Id: If4afc45a828e5ba935fecb6d95b239625e912d14 Signed-off-by: Lee Leahy Reviewed-on: https://review.coreboot.org/14612 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/southbridge/amd/pi/hudson/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'src/southbridge/amd') diff --git a/src/southbridge/amd/pi/hudson/Kconfig b/src/southbridge/amd/pi/hudson/Kconfig index aa55339ea0..8fe3b2d897 100644 --- a/src/southbridge/amd/pi/hudson/Kconfig +++ b/src/southbridge/amd/pi/hudson/Kconfig @@ -235,6 +235,7 @@ config HUDSON_UART select DRIVERS_UART_8250MEM select DRIVERS_UART_8250MEM_32 select NO_UART_ON_SUPERIO + select UART_OVERRIDE_REFCLK help There are two UART controllers in Kern. The UART registers are memory-mapped. UART -- cgit v1.2.3