6ec72c9b4f
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 <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/14612 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
75 lines
1.5 KiB
Text
75 lines
1.5 KiB
Text
config DRIVERS_UART
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bool
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default y if CONSOLE_SERIAL
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default n
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config DRIVERS_UART_8250IO
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bool "Serial port on SuperIO"
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depends on !ARCH_ARM
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default n if NO_UART_ON_SUPERIO
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default y if ARCH_X86
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# Select this for mainboard without SuperIO serial port.
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config NO_UART_ON_SUPERIO
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def_bool n
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config UART_OVERRIDE_INPUT_CLOCK_DIVIDER
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boolean
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default n
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help
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Set to "y" when the platform overrides the uart_input_clock_divider
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routine.
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config UART_OVERRIDE_REFCLK
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boolean
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default n
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help
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Set to "y" when the platform overrides the uart_platform_refclk
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routine.
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config DRIVERS_UART_8250MEM
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bool
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default n
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config DRIVERS_UART_8250MEM_32
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bool
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default n
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select DRIVERS_UART_8250MEM
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config HAVE_UART_SPECIAL
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bool
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default n
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config DRIVERS_UART_OXPCIE
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bool "Oxford OXPCIe952"
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default n
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depends on PCI
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select DRIVERS_UART_8250MEM
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select EARLY_PCI_BRIDGE
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select UART_OVERRIDE_REFCLK
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help
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Support for Oxford OXPCIe952 serial port PCIe cards.
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Currently only devices with the vendor ID 0x1415 and device ID
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0xc158 or 0xc11b will work.
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config DRIVERS_UART_PL011
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bool
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default n
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select HAVE_UART_SPECIAL
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config UART_USE_REFCLK_AS_INPUT_CLOCK
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bool
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default n
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help
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Use uart_platform_refclk to specify the input clock value.
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config UART_PCI_ADDR
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hex "UART's PCI bus, device, function address"
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default 0
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help
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Specify zero if the UART is connected to another bus type.
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For PCI based UARTs, build the value as:
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* 1 << 31 - Valid bit, PCI UART in use
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* Bus << 20
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* Device << 15
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* Function << 12
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