From 8af6b57788a0066a8b0d6264ae234e4131eefbd7 Mon Sep 17 00:00:00 2001 From: Eric Lai Date: Thu, 8 Apr 2021 11:48:30 +0800 Subject: mb/google/mancomb: Add initial I2C configuration BUG=b:182211161 TEST=builds Signed-off-by: Eric Lai Change-Id: I483c2e77eedcb434709b67bf9b3fbca636499508 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52174 Tested-by: build bot (Jenkins) Reviewed-by: Mathew King --- src/mainboard/google/mancomb/Kconfig | 2 ++ .../google/mancomb/variants/baseboard/devicetree.cb | 3 +++ .../google/mancomb/variants/mancomb/overridetree.cb | 21 +++++++++++++++++++++ 3 files changed, 26 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/mancomb/Kconfig b/src/mainboard/google/mancomb/Kconfig index b681a1ef81..85a50b399d 100644 --- a/src/mainboard/google/mancomb/Kconfig +++ b/src/mainboard/google/mancomb/Kconfig @@ -10,6 +10,8 @@ config BOARD_SPECIFIC_OPTIONS select AMD_SOC_CONSOLE_UART select BOARD_ROMSIZE_KB_16384 select DISABLE_SPI_FLASH_ROM_SHARING + select DRIVERS_I2C_GENERIC + select DRIVERS_I2C_HID select EC_GOOGLE_CHROMEEC select EC_GOOGLE_CHROMEEC_BOARDID select EC_GOOGLE_CHROMEEC_ESPI diff --git a/src/mainboard/google/mancomb/variants/baseboard/devicetree.cb b/src/mainboard/google/mancomb/variants/baseboard/devicetree.cb index b368574f68..533e2b4faa 100644 --- a/src/mainboard/google/mancomb/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/mancomb/variants/baseboard/devicetree.cb @@ -38,6 +38,9 @@ chip soc/amd/cezanne .vw_irq_polarity = ESPI_VW_IRQ_LEVEL_HIGH(1) | ESPI_VW_IRQ_LEVEL_HIGH(12), }" + register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL | + GPIO_I2C2_SCL | GPIO_I2C3_SCL" + device domain 0 on device ref gpp_bridge_0 on end # WLAN device ref gpp_bridge_1 on end # SD diff --git a/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb b/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb index eae9425bf7..59fe79046c 100644 --- a/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb +++ b/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb @@ -1,4 +1,25 @@ chip soc/amd/cezanne device domain 0 on end # domain + + # I2C Config + #+-------------------+---------------------------+ + #| Field | Value | + #+-------------------+---------------------------+ + #| I2C0 | memory SPD bus | + #| I2C2 | Codec | + #| I2C3 | H1/D2 TPM | + #+-------------------+---------------------------+ + register "i2c[0]" = "{ + .speed = I2C_SPEED_FAST, + .early_init = true, + }" + register "i2c[2]" = "{ + .speed = I2C_SPEED_FAST, + }" + register "i2c[3]" = "{ + .speed = I2C_SPEED_FAST, + .early_init = true, + }" + end # chip soc/amd/cezanne -- cgit v1.2.3