Add mediatek_i2c_spi interface

Add a spi_master interface supporting MediaTek MST9U ISP mode. Autodetect the bus type via I2C_FUNC_I2C, and use the appropriate read/write commands, in case the MST9U is attached to smbus. TEST=Successfully programmed SPI on test hardware. Change-Id: I24adb14e7b4f7160e1c3ff941774064d5a81e820 Signed-off-by: Neill Corlett <[email protected]> Reviewed-on: https://review.coreboot.org/c/flashrom/+/61288 Tested-by: build bot (Jenkins) <[email protected]> Reviewed-by: Edward O'Callaghan <[email protected]>
therealdreg · Feb 1, 2022 · e98b2d1 · e98b2d1
1 parent 55aa056
commit e98b2d1
Show file tree

Hide file tree

Showing 6 changed files with 531 additions and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -482,6 +482,9 @@ CONFIG_STLINKV3_SPI ?= yes
 # Disables LSPCON support until the i2c helper supports multiple systems.
 CONFIG_LSPCON_I2C_SPI ?= no
 
+# Disables MediaTek support until the i2c helper supports multiple systems.
+CONFIG_MEDIATEK_I2C_SPI ?= no
+
 # Disables REALTEK_MST support until the i2c helper supports multiple systems.
 CONFIG_REALTEK_MST_I2C_SPI ?= no
 
@@ -698,6 +701,11 @@ FEATURE_FLAGS += -D'CONFIG_LSPCON_I2C_SPI=1'
 PROGRAMMER_OBJS += lspcon_i2c_spi.o
 endif
 
+ifeq ($(CONFIG_MEDIATEK_I2C_SPI), yes)
+FEATURE_FLAGS += -D'CONFIG_MEDIATEK_I2C_SPI=1'
+PROGRAMMER_OBJS += mediatek_i2c_spi.o
+endif
+
 ifeq ($(CONFIG_REALTEK_MST_I2C_SPI), yes)
 FEATURE_FLAGS += -D'CONFIG_REALTEK_MST_I2C_SPI=1'
 PROGRAMMER_OBJS += realtek_mst_i2c_spi.o