From 71c90104438e453af6afa396e78e75e4f874a9e0 Mon Sep 17 00:00:00 2001 From: Roger Wang Date: Fri, 14 Jun 2024 15:28:32 +0800 Subject: mb/google/nissa/var/sundance: Increase I2C1 hold time to 126ns According to the vendor spec, I2C1 hold time needs > 100ns. System needs to adjust the I2C1 sda_hold value from 7 to 13, the system will change the I2C1 hold time from 70ns to 126ns. BUG=b:347157276 TEST=built bootleg and verified test result by EE team Change-Id: I722ec93177b6debf6b4c99de2df68c942560a3ff Signed-off-by: Roger Wang Reviewed-on: https://review.coreboot.org/c/coreboot/+/83080 Reviewed-by: Paul Menzel Reviewed-by: Eric Lai Tested-by: build bot (Jenkins) Reviewed-by: Kapil Porwal --- src/mainboard/google/brya/variants/sundance/overridetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mainboard/google') diff --git a/src/mainboard/google/brya/variants/sundance/overridetree.cb b/src/mainboard/google/brya/variants/sundance/overridetree.cb index 72cb317cb0..03450d40c2 100644 --- a/src/mainboard/google/brya/variants/sundance/overridetree.cb +++ b/src/mainboard/google/brya/variants/sundance/overridetree.cb @@ -128,7 +128,7 @@ chip soc/intel/alderlake .speed = I2C_SPEED_FAST, .scl_lcnt = 157, .scl_hcnt = 79, - .sda_hold = 7, + .sda_hold = 13, } }, .i2c[3] = { -- cgit v1.2.3