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Add mediatek_i2c_spi interface

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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 <corlett@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/61288
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
This commit is contained in:
Neill Corlett
2022-01-20 21:50:30 -05:00
committed by Edward O'Callaghan
parent 55aa056c74
commit e98b2d1184
6 changed files with 531 additions and 0 deletions
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8
Makefile
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@ -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