From 0177c95c16e5413f832200bfd4cf8a0e5adcfbe5 Mon Sep 17 00:00:00 2001
From: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com>
Date: Wed, 4 Oct 2023 18:20:35 +0800
Subject: [PATCH] mb/google/nissa/var/joxer: Config I2C frequency

Measured the I2C frequency meets spec
- I2C0  (TPM): 949.7 Khz
- I2C1  (TouchScreen): 395.8 Khz
- I2C3  (Audio): 387.4 Khz
- I2C5  (Touchpad): 384.8 Khz

BUG=b:303356736
TEST=USE="project_joxer emerge-nissa coreboot"
and check all I2C devices measurement result

Signed-off-by: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com>
Change-Id: I17dd1cb7800d00669f86fc6e2b350757695da881
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78218
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
---
 .../brya/variants/joxer/overridetree.cb       | 40 +++++++++----------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/src/mainboard/google/brya/variants/joxer/overridetree.cb b/src/mainboard/google/brya/variants/joxer/overridetree.cb
index 0c2ef6c7bc..12175c5eae 100644
--- a/src/mainboard/google/brya/variants/joxer/overridetree.cb
+++ b/src/mainboard/google/brya/variants/joxer/overridetree.cb
@@ -92,6 +92,24 @@ chip soc/intel/alderlake
 	register "common_soc_config" = "{
 		.i2c[0] = {
 			.early_init = 1,
+			.speed = I2C_SPEED_FAST_PLUS,
+			.speed_config[0] = {
+				.speed = I2C_SPEED_FAST_PLUS,
+				.scl_lcnt = 56,
+				.scl_hcnt = 30,
+				.sda_hold = 7,
+			}
+		},
+		.i2c[1] = {
+			.speed = I2C_SPEED_FAST,
+			.speed_config[0] = {
+				.speed = I2C_SPEED_FAST,
+				.scl_lcnt = 158,
+				.scl_hcnt = 79,
+				.sda_hold = 30,
+			}
+		},
+		.i2c[3] = {
 			.speed = I2C_SPEED_FAST,
 			.speed_config[0] = {
 				.speed = I2C_SPEED_FAST,
@@ -100,31 +118,13 @@ chip soc/intel/alderlake
 				.sda_hold = 7,
 			}
 		},
-		.i2c[1] = {
-			.speed = I2C_SPEED_FAST,
-			.speed_config[0] = {
-				.speed = I2C_SPEED_FAST,
-				.scl_lcnt = 160,
-				.scl_hcnt = 79,
-				.sda_hold = 7,
-			}
-		},
-		.i2c[3] = {
-			.speed = I2C_SPEED_FAST,
-			.speed_config[0] = {
-				.speed = I2C_SPEED_FAST,
-				.scl_lcnt = 157,
-				.scl_hcnt = 79,
-				.sda_hold = 7,
-			}
-		},
 		.i2c[5] = {
 			.speed = I2C_SPEED_FAST,
 			.speed_config[0] = {
 				.speed = I2C_SPEED_FAST,
-				.scl_lcnt = 152,
+				.scl_lcnt = 158,
 				.scl_hcnt = 79,
-				.sda_hold = 7,
+				.sda_hold = 40,
 			}
 		},
 	}"