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Lee Leahy 6ec72c9b4f 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 <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14612
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2016-05-09 18:45:44 +02:00
..
broadcom/cygnus soc/*: fix uart's regwidth specification in cbtables 2016-02-21 12:26:05 +01:00
dmp/vortex86ex dmp/vortex86ex: Merge northbridge and southbridge into soc 2016-05-05 20:06:33 +02:00
imgtec/pistachio drivers/uart: Use uart_platform_refclk for all UART models 2016-05-09 18:45:44 +02:00
intel drivers/uart: Use uart_platform_refclk for all UART models 2016-05-09 18:45:44 +02:00
marvell drivers/uart: Use uart_platform_refclk for all UART models 2016-05-09 18:45:44 +02:00
mediatek/mt8173 soc/mediatek/mt8173: mt6391: vcore sleep voltage should be 0.7V 2016-05-09 08:36:57 +02:00
nvidia drivers/uart: Use uart_platform_refclk for all UART models 2016-05-09 18:45:44 +02:00
qualcomm/ipq806x ipq806x/storm: Return NULL for cbmem_top if DRAM is not initialized 2016-03-29 22:37:01 +02:00
rdc/r8610 rdc/r8610: Move to src/soc 2016-05-05 20:08:58 +02:00
rockchip drivers/uart: Use uart_platform_refclk for all UART models 2016-05-09 18:45:44 +02:00
samsung soc/*: fix uart's regwidth specification in cbtables 2016-02-21 12:26:05 +01:00
ucb/riscv tree: drop last paragraph of GPL copyright header 2015-10-31 21:37:39 +01:00