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authorKarthikeyan Ramasubramanian <kramasub@google.com>2021-03-08 23:23:50 -0700
committerMartin Roth <martinroth@google.com>2021-03-22 03:40:23 +0000
commit0dbea48d46013c004014a024ad8717d049e67c8d (patch)
treea379bc38d7af31ac93c1b8d08a5e081ee2eb185d /src/mainboard/lenovo/t420s
parent1a5d279120a93986f4272072b6c55c81b82bafe7 (diff)
soc/amd/common: Introduce I2C driver common to all AMD SoCs
I2C driver is replicated in each generation of AMD SoCs. Introduce a common I2C driver that can be used across all the AMD SoCs. To begin with, peripheral reset functionality is moved into this common driver. SoC specific I2C driver passes the SCL pin configuration in order for the common driver to reset the peripherals. More functionality can be moved here in subsequent changes. Also sb_reset_i2c_slaves() is renamed as sb_reset_i2c_peripherals() as an effort towards using inclusive language. BUG=None TEST=Build Dalboz and Grunt. Boot to OS in Dalboz. Ensure that the I2C peripherals are detected as earlier in Dalboz. localhost ~ # i2cdetect -y 0 Warning: Can't use SMBus Quick Write command, will skip some addresses 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: 10: 20: 30: -- -- -- -- -- -- -- -- 40: 50: 50 51 -- -- -- -- -- -- 58 59 -- -- -- -- -- -- 60: 70: localhost ~ # i2cdetect -y 1 Warning: Can't use SMBus Quick Write command, will skip some addresses 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: 10: 20: 30: -- -- -- -- -- -- -- -- 40: 50: UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: 70: Change-Id: I9f735dcfe8375abdc88ff06e8c4f8a6b741bc085 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Suggested-by: Kyosti Malkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51404 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Mathew King <mathewk@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
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