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authorMichał Żygowski <michal.zygowski@3mdeb.com>2018-12-31 10:45:19 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-05-15 17:45:14 +0000
commitdcfff3739be63c2d42e16860243d7bec98c7ba44 (patch)
tree57fa974627e6028291ff8d6b6b57439d01451c6d /src
parent9a8c5e7ac0f559898c4d5fcb99a51e4dc472f51f (diff)
downloadcoreboot-dcfff3739be63c2d42e16860243d7bec98c7ba44.tar.xz
src/superio/ite/common: Prepare for ITE IT8786E SuperIO
Introduce 7bit Slope PWM registers. New ITE SuperIO may have contiguous 7bit values for PWM slope. Add option to enable External Sensor SMBus Host. Update/add registers macros for IT8786E-F which are not backwards compatible. Change-Id: I68fbfe62dfa05d0c166abaefbdc2ab873114b236 Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30553 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src')
-rw-r--r--src/superio/ite/common/Kconfig7
-rw-r--r--src/superio/ite/common/env_ctrl.c17
-rw-r--r--src/superio/ite/common/env_ctrl.h19
-rw-r--r--src/superio/ite/common/env_ctrl_chip.h5
4 files changed, 46 insertions, 2 deletions
diff --git a/src/superio/ite/common/Kconfig b/src/superio/ite/common/Kconfig
index 6c78741723..55f765004c 100644
--- a/src/superio/ite/common/Kconfig
+++ b/src/superio/ite/common/Kconfig
@@ -51,4 +51,11 @@ config SUPERIO_ITE_ENV_CTRL_5FANS
bool
help
ITE FAN controller has 5 independent outputs.
+
+config SUPERIO_ITE_ENV_CTRL_7BIT_SLOPE_REG
+ bool
+ help
+ Slope PWM registers have no separate BIT6 and are set directly by
+ 7-bit values instead.
+
endif
diff --git a/src/superio/ite/common/env_ctrl.c b/src/superio/ite/common/env_ctrl.c
index 57896e0c01..1b93036845 100644
--- a/src/superio/ite/common/env_ctrl.c
+++ b/src/superio/ite/common/env_ctrl.c
@@ -4,6 +4,7 @@
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2016 secunet Security Networks AG
* Copyright (C) 2019 Protectli
+ * Copyright (C) 2019 Libretrend LDA
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -165,9 +166,14 @@ static void fan_smartconfig(const u16 base, const u8 fan,
pwm_ctrl |= ITE_EC_FAN_CTL_TEMPIN(conf->tmpin);
pwm_start = ITE_EC_FAN_CTL_PWM_START_DUTY(conf->pwm_start);
- pwm_start |= ITE_EC_FAN_CTL_PWM_SLOPE_BIT6(conf->slope);
- pwm_auto = ITE_EC_FAN_CTL_PWM_SLOPE_LOWER(conf->slope);
+ if (CONFIG(SUPERIO_ITE_ENV_CTRL_7BIT_SLOPE_REG)) {
+ pwm_auto = conf->slope & 0x7f;
+ } else {
+ pwm_start |= ITE_EC_FAN_CTL_PWM_SLOPE_BIT6(conf->slope);
+ pwm_auto = ITE_EC_FAN_CTL_PWM_SLOPE_LOWER(conf->slope);
+ }
+
if (conf->smoothing)
pwm_auto |= ITE_EC_FAN_CTL_AUTO_SMOOTHING_EN;
@@ -287,6 +293,13 @@ void ite_ec_init(const u16 base, const struct ite_ec_config *const conf)
for (i = 0; i < ITE_EC_TMPIN_CNT; ++i)
enable_tmpin(base, i + 1, &conf->tmpin[i]);
+ /* Enable External Sensor SMBus Host if configured */
+ if (conf->smbus_en) {
+ ite_ec_write(base, ITE_EC_INTERFACE_SELECT,
+ ite_ec_read(base, ITE_EC_INTERFACE_SELECT) |
+ ITE_EC_INTERFACE_SMB_ENABLE);
+ }
+
/* Enable reading of voltage pins */
ite_ec_write(base, ITE_EC_ADC_VOLTAGE_CHANNEL_ENABLE, conf->vin_mask);
diff --git a/src/superio/ite/common/env_ctrl.h b/src/superio/ite/common/env_ctrl.h
index e29e33f54a..20e44ad5f1 100644
--- a/src/superio/ite/common/env_ctrl.h
+++ b/src/superio/ite/common/env_ctrl.h
@@ -4,6 +4,7 @@
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2016 secunet Security Networks AG
* Copyright (C) 2019 Protectli
+ * Copyright (C) 2019 Libretrend LDA
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -50,6 +51,14 @@
#define ITE_EC_FAN_PWM_SMOOTHING_256HZ (1 << 6)
#define ITE_EC_FAN_PWM_SMOOTHING_64HZ (2 << 6)
#define ITE_EC_FAN_PWM_SMOOTHING_16HZ (3 << 6)
+/* ITE IT8786E PWM_SMOOTHING_FREQ */
+#define ITE_EC_FAN_ALT_PWM_SMOOTHING_16HZ (1 << 6)
+#define ITE_EC_FAN_ALT_PWM_SMOOTHING_8HZ (2 << 6)
+#define ITE_EC_FAN_ALT_PWM_SMOOTHING_4HZ (3 << 6)
+#define ITE_EC_FAN_CTL5_SEL(FAN_CTLx) ((((FAN_CTLx)-1) & 3) << 2)
+#define ITE_EC_FAN_CTL5_SEL_NONE (3 << 2)
+#define ITE_EC_FAN_CTL4_SEL(FAN_CTLx) (((FAN_CTLx)-1) & 3)
+#define ITE_EC_FAN_CTL4_SEL_NONE (3 << 0)
#define ITE_EC_FAN_TAC_COUNTER_ENABLE 0x0c
#define ITE_EC_FAN_TAC_16BIT_ENABLE(x) (1 << ((x)-1))
@@ -68,6 +77,14 @@
: (0x1b + ((x)-1)) \
)
+#define ITE_EC_FAN_TAC_CNTRL 0x0c
+#define ITE_EC_TMPIN3_ENHANCED_INT_MODE (1 << 7)
+#define ITE_EC_TMPIN2_ENHANCED_INT_MODE (1 << 6)
+#define ITE_EC_FAN_TAC5_EN (1 << 5)
+#define ITE_EC_FAN_TAC4_EN (1 << 4)
+#define ITE_EC_TMPIN1_ENHANCED_INT_MODE (1 << 3)
+#define ITE_EC_AMDTSI_ERR_EN (1 << 0)
+
#define ITE_EC_FAN_MAIN_CTL 0x13
#define ITE_EC_FAN_MAIN_CTL_TAC_EN(x) (1 << ((x)+3))
#define ITE_EC_FAN_MAIN_CTL_COLL_FULL_SPEED (1 << 3)
@@ -185,6 +202,8 @@ static const u8 ITE_EC_TEMP_ADJUST[] = { 0x56, 0x57, 0x59 };
/* Common for ITE_EC_FAN_CTL_DELTA_TEMP */
#define ITE_EC_FAN_CTL_DELTA_TEMP_INTRVL(c) ((c) & 0x1f)
+#define ITE_EC_FAN_CTL_TARGET_ZONE(x) (0x66 + ((x)-1) * 8)
+#define ITE_EC_FAN_CTL_TARGET_ZONE_MASK 0x0f
#define ITE_EC_EXTEMP_STATUS 0x88
#define ITE_EC_EXTEMP_STATUS_HOST_BUSY (1 << 0)
diff --git a/src/superio/ite/common/env_ctrl_chip.h b/src/superio/ite/common/env_ctrl_chip.h
index 923bfa3aea..f5116e6465 100644
--- a/src/superio/ite/common/env_ctrl_chip.h
+++ b/src/superio/ite/common/env_ctrl_chip.h
@@ -101,6 +101,11 @@ struct ite_ec_config {
bool tmpin_beep;
bool fan_beep;
bool vin_beep;
+
+ /*
+ * Enable SMBus for external thermal sensor.
+ */
+ bool smbus_en;
};
/* Some shorthands for device trees */