strago: Added support for temperature sensor.

BUG=none
TEST=verfiy temperature is displayed via EC console.
BRANCH=none

Change-Id: Ic43af17961361e4c971a343a0d24d310c3aaf2ac
Signed-off-by: Kevin K Wong <kevin.k.wong@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/248713
Tested-by: Divya Jyothi <divya.jyothi@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
Commit-Queue: Divya Jyothi <divya.jyothi@intel.com>

3 files changed, 65 insertions, 4 deletions

diff --git a/board/strago/board.c b/board/strago/board.c
index 1aa9762515..9aa1e3b4ac 100644
--- a/board/strago/board.c
+++ b/board/strago/board.c
@@ -4,12 +4,17 @@
  */
 /* Strago board-specific configuration */
 
+#include "driver/temp_sensor/tmp43x.h"
 #include "extpower.h"
 #include "gpio.h"
+#include "i2c.h"
 #include "lid_switch.h"
 #include "power.h"
 #include "power_button.h"
 #include "registers.h"
+#include "temp_sensor.h"
+#include "temp_sensor_chip.h"
+#include "thermal.h"
 #include "util.h"
 
 #define GPIO_KB_INPUT (GPIO_INPUT | GPIO_PULL_UP)
@@ -26,3 +31,39 @@ const struct power_signal_info power_signal_list[] = {
 	{GPIO_PCH_SLP_S4_L,      1, "SLP_S4#_DEASSERTED"},
 };
 BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
+
+const struct i2c_port_t i2c_ports[]  = {
+	{"I2C0", I2C_PORT0, 100},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+/*
+ * Temperature sensors data; must be in same order as enum temp_sensor_id.
+ * Sensor index and name must match those present in coreboot:
+ *     src/mainboard/google/${board}/acpi/dptf.asl
+ */
+const struct temp_sensor_t temp_sensors[] = {
+	{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp43x_get_val,
+		TMP432_IDX_LOCAL, 4},
+	{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp43x_get_val,
+		TMP432_IDX_REMOTE1, 4},
+	{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp43x_get_val,
+		TMP432_IDX_REMOTE2, 4},
+	{"TMP431_Internal", TEMP_SENSOR_TYPE_BOARD, tmp43x_get_val,
+		TMP431_IDX_LOCAL, 4},
+	{"TMP431_Sensor",   TEMP_SENSOR_TYPE_BOARD, tmp43x_get_val,
+		TMP431_IDX_REMOTE1, 4},
+};
+BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
+
+/* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
+ * same order as enum temp_sensor_id. To always ignore any temp, use 0.
+ */
+struct ec_thermal_config thermal_params[] = {
+	{{0, 0, 0}, 0, 0}, /* TMP432_Internal */
+	{{0, 0, 0}, 0, 0}, /* TMP432_Sensor_1 */
+	{{0, 0, 0}, 0, 0}, /* TMP432_Sensor_2 */
+	{{0, 0, 0}, 0, 0}, /* TMP431_Internal */
+	{{0, 0, 0}, 0, 0}, /* TMP431_Sensor */
+};
+BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
diff --git a/board/strago/board.h b/board/strago/board.h
index f6aa5f4290..a33454a42b 100755
--- a/board/strago/board.h
+++ b/board/strago/board.h
@@ -22,6 +22,7 @@
 #define CONFIG_LID_SWITCH
 #define CONFIG_POWER_COMMON
 #define CONFIG_EXTPOWER_GPIO
+#define CONFIG_I2C
 #define CONFIG_VBOOT_HASH
 
 #define CONFIG_SPI
@@ -33,17 +34,23 @@
 #define CONFIG_FLASH_ERASE_SIZE     0x00001000  /* erase bank size */
 #define CONFIG_FLASH_WRITE_SIZE     0x00000010  /* minimum write size */
 
+/* I2C ports */
+#define I2C_PORT0 0
+#define I2C_PORT_THERMAL	I2C_PORT0
+
+#define CONFIG_TEMP_SENSOR
+#define CONFIG_TEMP_SENSOR_TMP431
+#define CONFIG_TEMP_SENSOR_TMP432
+
 /* Ideal flash write size fills the 32-entry flash write buffer */
 #define CONFIG_FLASH_WRITE_IDEAL_SIZE (32 * 4)
 
-
 /* Modules we want to exclude */
 #undef CONFIG_EEPROM
 #undef CONFIG_EOPTION
 #undef CONFIG_PSTORE
 #undef CONFIG_PECI
 #undef CONFIG_SWITCH
-#undef CONFIG_I2C
 #undef CONFIG_PWM
 #undef CONFIG_FANS
 #undef CONFIG_ADC
@@ -63,6 +70,18 @@ enum power_signal {
 	POWER_SIGNAL_COUNT
 };
 
+enum temp_sensor_id {
+	/* TMP432 local and remote sensors */
+	TEMP_SENSOR_I2C_TMP432_LOCAL,
+	TEMP_SENSOR_I2C_TMP432_REMOTE1,
+	TEMP_SENSOR_I2C_TMP432_REMOTE2,
+
+	/* TMP431 local and remote sensors */
+	TEMP_SENSOR_I2C_TMP431_LOCAL,
+	TEMP_SENSOR_I2C_TMP431_REMOTE1,
+
+	TEMP_SENSOR_COUNT
+};
 #endif /* !__ASSEMBLER__ */
 
 #endif /* __BOARD_H */
diff --git a/board/strago/gpio.inc b/board/strago/gpio.inc
index 2ab25a924d..1e935f9bb2 100755
--- a/board/strago/gpio.inc
+++ b/board/strago/gpio.inc
@@ -85,10 +85,11 @@ GPIO(PCH_SLP_SX_L,      PORT(21), 1, GPIO_INT_BOTH_DSLEEP,
 UNIMPLEMENTED(WP_L)
 
 /* Alternate functions GPIO definition */
-ALTERNATE(PORT(16), 0x24,     1, MODULE_UART,          0) 			/* UART0 */
+ALTERNATE(PORT(16),     0x24,   1,      MODULE_UART,            0)                      /* UART0 */
+ALTERNATE(PORT(1),      0x60,   2,      MODULE_I2C,             GPIO_PULL_UP)           /* I2C0: Temperature Sensor */
 ALTERNATE(PORT(0),      0xfc,   3,      MODULE_KEYBOARD_SCAN,   GPIO_KB_OUTPUT)
 ALTERNATE(PORT(1),      0x03,   3,      MODULE_KEYBOARD_SCAN,   GPIO_KB_OUTPUT)
-ALTERNATE(PORT(10)   ,  0xd8,   3,      MODULE_KEYBOARD_SCAN,   GPIO_KB_OUTPUT)
+ALTERNATE(PORT(10),     0xd8,   3,      MODULE_KEYBOARD_SCAN,   GPIO_KB_OUTPUT)
  GPIO(KBD_KSO2,         PORT(0),1,      GPIO_KB_OUTPUT_COL2,    NULL)                   /* Negative edge triggered irq. */
 ALTERNATE(PORT(3),  0x04,     3, MODULE_KEYBOARD_SCAN, GPIO_KB_INPUT)
 ALTERNATE(PORT(4),  0x0d,     3, MODULE_KEYBOARD_SCAN, GPIO_KB_INPUT)