From 9d321588d04843621af4cddff411ddcee88fe682 Mon Sep 17 00:00:00 2001
From: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Date: Wed, 3 Nov 2021 11:28:23 +0800
Subject: soc/mediatek: move i2c function to common folder

Move mtk_i2c_max_step_cnt, mtk_i2c_check_ac_timing, mtk_i2c_speed_init
and mtk_i2c_calculate_speed to common folder to share with MT8186.

TEST=test on tomato ok
TEST=emerge-asurada coreboot
BUG=b:202871018

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I4a702741c763bf9261cea90d0d71c08b6e28c261
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59295
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
---
 src/soc/mediatek/mt8173/i2c.c             | 6 +++---
 src/soc/mediatek/mt8173/include/soc/i2c.h | 5 +++++
 2 files changed, 8 insertions(+), 3 deletions(-)

(limited to 'src/soc/mediatek/mt8173')

diff --git a/src/soc/mediatek/mt8173/i2c.c b/src/soc/mediatek/mt8173/i2c.c
index ff803c3d3b..dd4629d909 100644
--- a/src/soc/mediatek/mt8173/i2c.c
+++ b/src/soc/mediatek/mt8173/i2c.c
@@ -6,9 +6,6 @@
 #include <device/mmio.h>
 #include <soc/addressmap.h>
 #include <soc/i2c.h>
-#include <soc/pll.h>
-
-#define I2C_CLK_HZ (AXI_HZ / 16)
 
 struct mtk_i2c mtk_i2c_bus_controller[7] = {
 	/* i2c0 setting */
@@ -52,6 +49,9 @@ struct mtk_i2c mtk_i2c_bus_controller[7] = {
 	}
 };
 
+_Static_assert(ARRAY_SIZE(mtk_i2c_bus_controller) == I2C_BUS_NUMBER,
+	       "Wrong size of mtk_i2c_bus_controller");
+
 #define I2CTAG                "[I2C][PL] "
 
 #if CONFIG(DEBUG_I2C)
diff --git a/src/soc/mediatek/mt8173/include/soc/i2c.h b/src/soc/mediatek/mt8173/include/soc/i2c.h
index e6f0140367..02a21817d9 100644
--- a/src/soc/mediatek/mt8173/include/soc/i2c.h
+++ b/src/soc/mediatek/mt8173/include/soc/i2c.h
@@ -4,6 +4,7 @@
 #define SOC_MEDIATEK_MT8173_I2C_H
 
 #include <soc/i2c_common.h>
+#include <soc/pll.h>
 
 /* I2C Register */
 struct mt_i2c_regs {
@@ -35,6 +36,10 @@ struct mt_i2c_regs {
 	uint32_t transfer_aux_len;
 };
 
+#define I2C_CLK_HZ (AXI_HZ / 16)
+#define I2C_BUS_NUMBER 7
+#define MAX_CLOCK_DIV  32
+
 check_member(mt_i2c_regs, debug_stat, 0x64);
 
 void mtk_i2c_bus_init(uint8_t bus);
-- 
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