From 0ff2e01e809439efbf8cbe85bb6b48315b8a945a Mon Sep 17 00:00:00 2001 From: Martin Roth Date: Thu, 20 Jul 2017 20:54:36 -0600 Subject: amd/pi/hudson: Move oem_fan_control() It was not intentional to change oem_fan_control() to non-static with commit 23e5ba9 binarypi mainboards: Clean up IS_ENABLED fan control Every platform except bettong had its own static version of oem_fan_control, so remove the definition of oem_fan_control from imc.h, and move it out of imc.c into bettong's BiosCallOuts.c. Change-Id: Ie95ac1fd3a57259bb35796903aa8753ef0e70d70 Signed-off-by: Martin Roth Reviewed-on: https://review.coreboot.org/21189 Reviewed-by: Marshall Dawson Tested-by: build bot (Jenkins) --- src/mainboard/amd/bettong/BiosCallOuts.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'src/mainboard/amd/bettong') diff --git a/src/mainboard/amd/bettong/BiosCallOuts.c b/src/mainboard/amd/bettong/BiosCallOuts.c index b251a5a5e7..8ea10d9080 100644 --- a/src/mainboard/amd/bettong/BiosCallOuts.c +++ b/src/mainboard/amd/bettong/BiosCallOuts.c @@ -26,6 +26,7 @@ #include "imc.h" #include "hudson.h" #include +#include #include "northbridge/amd/pi/dimmSpd.h" #include "northbridge/amd/pi/agesawrapper.h" #include @@ -52,6 +53,25 @@ static const GPIO_CONTROL oem_bettong_gpio[] = { {64, Function1, FCH_GPIO_PULL_UP_ENABLE | FCH_GPIO_OUTPUT_VALUE | FCH_GPIO_OUTPUT_ENABLE | DrvStrengthSel_12mA}, {-1} }; + +/* Bettong Hardware Monitor Fan Control + * Hardware limitation: + * HWM will fail to read the input temperature via I2C if other + * software switches the I2C address. AMD recommends using IMC + * to control fans, instead of HWM. + */ +static void oem_fan_control(FCH_DATA_BLOCK *FchParams) +{ + /* Enable IMC fan control. the recommand way */ + imc_reg_init(); + + FchParams->Imc.ImcEnable = TRUE; + FchParams->Hwm.HwmControl = 1; /* 1 IMC, 0 HWM */ + FchParams->Imc.ImcEnableOverWrite = 1; /* 2 disable IMC, 1 enable IMC, 0 following hw strap setting */ + + memset(&FchParams->Imc.EcStruct, 0, sizeof(FCH_EC)); +} + /** * Fch Oem setting callback * @@ -72,6 +92,7 @@ AGESA_STATUS Fch_Oem_config(UINT32 Func, UINTN FchData, VOID *ConfigPtr) } else if (StdHeader->Func == AMD_INIT_ENV) { FCH_DATA_BLOCK *FchParams_env = (FCH_DATA_BLOCK *)FchData; printk(BIOS_DEBUG, "Fch OEM config in INIT ENV "); + if (IS_ENABLED(CONFIG_HUDSON_IMC_FWM)) oem_fan_control(FchParams_env); -- cgit v1.2.3