soc/amd/picasso: remove PICASSO_LPC_IOMUX Kconfig option from SoC

PICASSO_LPC_IOMUX was only used in the amd/mandolin board, but not in
the corresponding SoC code, so remove it from the SoC's Kconfig and
reanme it in the mainboard's Kconfig to MANDOLIN_LPC.

Change-Id: I261e093d6c56be6073a816b79c60d3a0457616f8
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/mainboard/amd/mandolin/Kconfig

@@ -21,7 +21,7 @@ config FMDFILE
 config AMD_LPC_DEBUG_CARD
 	bool "Enable LPC-Serial debug card on the debug header"
 	default n
-	select PICASSO_LPC_IOMUX
+	select MANDOLIN_LPC
 	select SUPERIO_SMSC_SIO1036
 	help
 	  AMD's debug card contains an SMSC SIO1036 device which provides an
@@ -111,7 +111,7 @@ config MANDOLIN_IOMUX_USE_EMMC
 endchoice
 endif # !AMD_LPC_DEBUG_CARD
 
-config PICASSO_LPC_IOMUX
+config MANDOLIN_LPC
 	bool
 	default y if MANDOLIN_IOMUX_USE_LPC
 	help

src/mainboard/amd/mandolin/Makefile.inc

@@ -6,7 +6,7 @@ bootblock-y += variants/$(VARIANT_DIR)/early_gpio.c
 ramstage-y += variants/$(VARIANT_DIR)/gpio.c
 ramstage-y += variants/$(VARIANT_DIR)/port_descriptors.c
 
-ifneq ($(CONFIG_PICASSO_LPC_IOMUX),y)
+ifneq ($(CONFIG_MANDOLIN_LPC),y)
 ramstage-y += emmc_gpio.c
 endif
 

src/mainboard/amd/mandolin/mainboard.c

@@ -111,13 +111,13 @@ static void mainboard_init(void *chip_info)
 {
 	struct soc_amd_picasso_config *cfg = config_of_soc();
 
-	if (!CONFIG(PICASSO_LPC_IOMUX))
+	if (!CONFIG(MANDOLIN_LPC))
 		cfg->emmc_config.timing = SD_EMMC_EMMC_HS400;
 
 	mainboard_program_gpios();
 
 	/* Re-muxing LPCCLK0 can hang the system if LPC is in use. */
-	if (CONFIG(PICASSO_LPC_IOMUX))
+	if (CONFIG(MANDOLIN_LPC))
 		printk(BIOS_INFO, "eMMC not available due to LPC requirement\n");
 	else
 		mainboard_program_emmc_gpios();

src/soc/amd/picasso/Kconfig

@@ -376,12 +376,6 @@ config DRIVERS_I2C_DESIGNWARE_CLOCK_MHZ
 	int
 	default 150
 
-config PICASSO_LPC_IOMUX
-	bool
-	help
-	  Picasso's LPC bus signals are MUXed with some of the EMMC signals.
-	  Select this option if LPC signals are required.
-
 config DISABLE_SPI_FLASH_ROM_SHARING
 	def_bool n
 	help