From 87b36903a7906d93f42558ddf9ca5406e7bcfa40 Mon Sep 17 00:00:00 2001
From: Rob Barnes <robbarnes@google.com>
Date: Mon, 14 Dec 2020 12:49:25 -0700
Subject: guybrush: I2C port map

Add i2c port map for guybrush.

BUG=b:175593988
TEST=Build
BRANCH=None

Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: Ie78b0fa5d79c4add1776ddcb8a0ee14ec8b1618f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2590564
Reviewed-by: Diana Z <dzigterman@chromium.org>
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
---
 baseboard/guybrush/baseboard.c | 78 ++++++++++++++++++++++++++++++++++++++++++
 baseboard/guybrush/baseboard.h | 14 ++++++++
 2 files changed, 92 insertions(+)

(limited to 'baseboard')

diff --git a/baseboard/guybrush/baseboard.c b/baseboard/guybrush/baseboard.c
index 0abaf54ad3..cd07a044fc 100644
--- a/baseboard/guybrush/baseboard.c
+++ b/baseboard/guybrush/baseboard.c
@@ -5,7 +5,9 @@
 
 /* Guybrush family-specific configuration */
 
+#include "chipset.h"
 #include "gpio.h"
+#include "i2c.h"
 #include "power.h"
 
 /* Wake Sources */
@@ -46,6 +48,82 @@ const struct power_signal_info power_signal_list[] = {
 };
 BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
 
+const struct i2c_port_t i2c_ports[] = {
+	{
+		.name = "tcpc0",
+		.port = I2C_PORT_TCPC0,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_USB_A0_C0_SCL,
+		.sda = GPIO_EC_I2C_USB_A0_C0_SDA,
+	},
+	{
+		.name = "tcpc1",
+		.port = I2C_PORT_TCPC1,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_USB_A1_C1_SCL,
+		.sda = GPIO_EC_I2C_USB_A1_C1_SDA,
+	},
+	{
+		.name = "battery",
+		.port = I2C_PORT_BATTERY,
+		.kbps = 100,
+		.scl = GPIO_EC_I2C_BATT_SCL,
+		.sda = GPIO_EC_I2C_BATT_SDA,
+	},
+	{
+		.name = "usb_mux",
+		.port = I2C_PORT_USB_MUX,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_USBC_MUX_SCL,
+		.sda = GPIO_EC_I2C_USBC_MUX_SDA,
+	},
+	{
+		.name = "charger",
+		.port = I2C_PORT_CHARGER,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_POWER_SCL,
+		.sda = GPIO_EC_I2C_POWER_SDA,
+	},
+	{
+		.name = "eeprom",
+		.port = I2C_PORT_EEPROM,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_CBI_SCL,
+		.sda = GPIO_EC_I2C_CBI_SDA,
+	},
+	{
+		.name = "sensor",
+		.port = I2C_PORT_SENSOR,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_SENSOR_SCL,
+		.sda = GPIO_EC_I2C_SENSOR_SDA,
+	},
+	{
+		.name = "soc_thermal",
+		.port = I2C_PORT_SOC_THERMAL,
+		.kbps = 400,
+		.scl = GPIO_EC_I2C_SOC_SIC,
+		.sda = GPIO_EC_I2C_SOC_SID,
+	},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+int board_is_i2c_port_powered(int port)
+{
+	switch (port) {
+	case I2C_PORT_USB_MUX:
+	case I2C_PORT_SENSOR:
+		/* USB mux and sensor i2c bus is unpowered in Z1 */
+		return chipset_in_state(CHIPSET_STATE_HARD_OFF) ? 0 : 1;
+	case I2C_PORT_SOC_THERMAL:
+		/* SOC thermal i2c bus is unpowered in S0i3/S3/S5/Z1 */
+		return chipset_in_state(CHIPSET_STATE_ANY_OFF |
+					CHIPSET_STATE_ANY_SUSPEND) ? 0 : 1;
+	default:
+		return 1;
+	}
+}
+
 void sbu_fault_interrupt(enum ioex_signal signal)
 {
 	/* TODO */
diff --git a/baseboard/guybrush/baseboard.h b/baseboard/guybrush/baseboard.h
index 9d8131c4ea..86e00d26ef 100644
--- a/baseboard/guybrush/baseboard.h
+++ b/baseboard/guybrush/baseboard.h
@@ -78,6 +78,20 @@
 /* BC 1.2 */
 
 /* I2C Bus Configuration */
+#define CONFIG_I2C
+#define CONFIG_I2C_BUS_MAY_BE_UNPOWERED
+#define CONFIG_I2C_CONTROLLER
+#define CONFIG_I2C_UPDATE_IF_CHANGED
+#define I2C_PORT_TCPC0		NPCX_I2C_PORT0_0
+#define I2C_PORT_TCPC1		NPCX_I2C_PORT1_0
+#define I2C_PORT_BATTERY	NPCX_I2C_PORT2_0
+#define I2C_PORT_USB_MUX	NPCX_I2C_PORT3_0
+#define I2C_PORT_POWER		NPCX_I2C_PORT4_1
+#define I2C_PORT_CHARGER	I2C_PORT_POWER
+#define I2C_PORT_EEPROM		NPCX_I2C_PORT5_0
+#define I2C_PORT_SENSOR		NPCX_I2C_PORT6_1
+#define I2C_PORT_SOC_THERMAL	NPCX_I2C_PORT7_0
+#define I2C_ADDR_EEPROM_FLAGS	0x50
 
 /* Volume Button Config */
 #define CONFIG_VOLUME_BUTTONS
-- 
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