diff options
| author | Ted Kuo <tedkuo@ami.com.tw> | 2015-03-18 10:42:22 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2015-12-31 17:39:47 +0100 |
| commit | 4e8f23b896fe31851c26e056ee55fb8191419fa0 (patch) | |
| tree | 80c543d02b8f6843e76e65f1eac3dd25324db06b /src | |
| parent | 4f3d400a30247b7795254517078529d070f4129f (diff) | |
superio/it8772f: Add switch to enable HWM (Hardware Monitor)
Set up External Temperature to read via thermal diode/resistor
into TMPINx register by setting thermal_mode switch.
Original-Signed-off-by: Ted Kuo <tedkuo@ami.com.tw>
Change-Id: I0e8621b92faa5c6246e009d2f852c8d4db484034
Original-Reviewed-on: https://chromium-review.googlesource.com/260545
Original-Reviewed-by: Shawn N <shawnn@chromium.org>
Original-Tested-by: Ted Kuo <tedkuo@ami.com.tw>
Original-(cherry picked from commit 973e2d393f2595b756f8aa20f6fbe3b6e045621a)
Original-Reviewed-on: https://chromium-review.googlesource.com/262340
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/12798
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/superio/ite/it8772f/chip.h | 7 | ||||
| -rw-r--r-- | src/superio/ite/it8772f/it8772f.h | 8 | ||||
| -rw-r--r-- | src/superio/ite/it8772f/superio.c | 44 |
3 files changed, 59 insertions, 0 deletions
diff --git a/src/superio/ite/it8772f/chip.h b/src/superio/ite/it8772f/chip.h index 78ded22b5d..0d80fb833c 100644 --- a/src/superio/ite/it8772f/chip.h +++ b/src/superio/ite/it8772f/chip.h @@ -18,6 +18,7 @@ #define SUPERIO_ITE_IT8772F_CHIP_H #include <device/device.h> +#include "it8772f.h" struct superio_ite_it8772f_config { /* GPIO SimpleIO register values via devicetree.cb */ @@ -37,6 +38,12 @@ struct superio_ite_it8772f_config { u8 peci_tmpin; /* + * Enable thermal mode on tmpinx. + */ + enum thermal_mode tmpin1_mode; + enum thermal_mode tmpin2_mode; + + /* * Enable a FAN for sofware control. */ u8 fan1_enable; diff --git a/src/superio/ite/it8772f/it8772f.h b/src/superio/ite/it8772f/it8772f.h index 8e82bef6ab..2031fffda8 100644 --- a/src/superio/ite/it8772f/it8772f.h +++ b/src/superio/ite/it8772f/it8772f.h @@ -17,6 +17,13 @@ #ifndef SUPERIO_ITE_IT8772F_H #define SUPERIO_ITE_IT8772F_H +/* Supported thermal mode on TMPINx */ +enum thermal_mode { + THERMAL_MODE_DISABLED = 0, + THERMAL_DIODE, + THERMAL_RESISTOR, +}; + #define IT8772F_FDC 0x00 /* Floppy disk controller */ #define IT8772F_SP1 0x01 /* Com1 */ #define IT8772F_EC 0x04 /* Environment controller */ @@ -26,6 +33,7 @@ #define IT8772F_IR 0x0a /* Consumer IR */ /* Environmental Controller interface */ +#define IT8772F_CONFIGURATION 0x00 #define IT8772F_INTERFACE_SELECT 0x0a #define IT8772F_INTERFACE_PSEUDO_EOC (1 << 7) #define IT8772F_INTERFACE_SMB_ENABLE (1 << 6) diff --git a/src/superio/ite/it8772f/superio.c b/src/superio/ite/it8772f/superio.c index 7079b1a829..2d897d83ba 100644 --- a/src/superio/ite/it8772f/superio.c +++ b/src/superio/ite/it8772f/superio.c @@ -16,6 +16,7 @@ #include <device/device.h> #include <device/pnp.h> +#include <console/console.h> #include <pc80/keyboard.h> #include <arch/io.h> #include <delay.h> @@ -97,6 +98,43 @@ static void it8772f_enable_peci(struct resource *res, int tmpin) } /* + * Set up External Temperature to read via thermal diode/resistor + * into TMPINx register + */ +static void it8772f_enable_tmpin(struct resource *res, int tmpin, + enum thermal_mode mode) +{ + u8 reg; + + if (tmpin != 1 && tmpin != 2) + return; + + reg = it8772f_envc_read(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE); + + switch (mode) { + case THERMAL_DIODE: + /* Thermal Diode Mode */ + it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, + reg | tmpin); + break; + case THERMAL_RESISTOR: + /* Thermal Resistor Mode */ + it8772f_envc_write(res, IT8772F_ADC_TEMP_CHANNEL_ENABLE, + reg | (tmpin << 3)); + break; + default: + printk(BIOS_ERR, "Unsupported thermal mode 0x%x on TMPIN%d\n", + mode, tmpin); + return; + } + + reg = it8772f_envc_read(res, IT8772F_CONFIGURATION); + + /* Enable the startup of monitoring operation */ + it8772f_envc_write(res, IT8772F_CONFIGURATION, reg | 0x01); +} + +/* * Setup a FAN PWM interface for software control */ static void it8772f_enable_fan(struct resource *res, int fan) @@ -160,6 +198,12 @@ static void it8772f_init(struct device *dev) /* Enable PECI if configured */ it8772f_enable_peci(res, conf->peci_tmpin); + /* Enable HWM if configured */ + if (conf->tmpin1_mode != THERMAL_MODE_DISABLED) + it8772f_enable_tmpin(res, 1, conf->tmpin1_mode); + if (conf->tmpin2_mode != THERMAL_MODE_DISABLED) + it8772f_enable_tmpin(res, 2, conf->tmpin2_mode); + /* Enable FANx if configured */ if (conf->fan1_enable) it8772f_enable_fan(res, 1); |