Kerry Sheh (shekairui@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/569
-gerrit
commit c54bf5d4ccb746743ed456909270a23526eb42dc Author: Kerry Sheh shekairui@gmail.com Date: Fri Jan 20 18:50:17 2012 +0800
HWM: Winbond W83795 HWM support
Supermicro H8QGI-F 1 Unit Chassis contain 8 system Fans, they are controled by a saparate W83795 Hardware Monitor chip. This patch add the w83795 HWM support.
Change-Id: I8756f5ed02dc2fa0884cde36e51451fd8aacee27 Signed-off-by: Kerry Sheh kerry.she@amd.com Signed-off-by: Kerry Sheh shekairui@gmail.com --- src/mainboard/supermicro/h8qgi/Makefile.inc | 1 + src/mainboard/supermicro/h8qgi/romstage.c | 9 ++ src/mainboard/supermicro/h8qgi/w83795.c | 186 +++++++++++++++++++++++++++ src/mainboard/supermicro/h8qgi/w83795.h | 73 +++++++++++ 4 files changed, 269 insertions(+), 0 deletions(-)
diff --git a/src/mainboard/supermicro/h8qgi/Makefile.inc b/src/mainboard/supermicro/h8qgi/Makefile.inc index 82264a4..ef81caf 100644 --- a/src/mainboard/supermicro/h8qgi/Makefile.inc +++ b/src/mainboard/supermicro/h8qgi/Makefile.inc @@ -17,6 +17,7 @@ # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #
+romstage-y += w83795.c romstage-$(CONFIG_NORTHBRIDGE_AMD_CIMX_RD890) += rd890_cfg.c romstage-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB700) += sb700_cfg.c romstage-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB700) += reset.c diff --git a/src/mainboard/supermicro/h8qgi/romstage.c b/src/mainboard/supermicro/h8qgi/romstage.c index 119593e..15828fe 100644 --- a/src/mainboard/supermicro/h8qgi/romstage.c +++ b/src/mainboard/supermicro/h8qgi/romstage.c @@ -33,6 +33,7 @@ #include <sb_cimx.h> #include "superio/nuvoton/wpcm450/wpcm450.h" #include "superio/winbond/w83627dhg/w83627dhg.h" +#include "w83795.h"
extern void disable_cache_as_ram(void); /* cache_as_ram.inc */
@@ -119,6 +120,14 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) }
post_code(0x3C); + /* W83627DHG pin89,90 function select is RSTOUT3#, RSTOUT2# by default. + * In order to access W83795G/ADG HWM using I2C protocol, + * we select function to SDA, SCL function (or GP33, GP32 function). + */ + w83627dhg_enable_i2c(PNP_DEV(0x2E, W83627DHG_SPI)); + w83795_init(THERMAL_CRUISE_MODE); + w83627dhg_enable_serial(PNP_DEV(0x2E, W83627DHG_SP1), CONFIG_TTYS0_BASE); + nb_Ht_Init(); post_code(0x3D); /* Reset for HT, FIDVID, PLL and ucode patch(errata) changes to take affect. */ diff --git a/src/mainboard/supermicro/h8qgi/w83795.c b/src/mainboard/supermicro/h8qgi/w83795.c new file mode 100644 index 0000000..7832dfa --- /dev/null +++ b/src/mainboard/supermicro/h8qgi/w83795.c @@ -0,0 +1,186 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * + * 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 + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <console/console.h> +#include "southbridge/amd/cimx/sb700/smbus.h" /*SMBUS_IO_BASE*/ +#include "w83795.h" + +static u32 w83795_set_bank(u8 bank) +{ + return do_smbus_write_byte(SMBUS_IO_BASE, W83795_DEV, W83795_REG_BANKSEL, bank); +} + +static u8 w83795_read(u16 reg) +{ + u32 ret; + + ret = w83795_set_bank(reg >> 8); + if (ret < 0) { + printk(BIOS_DEBUG, "read faild to set bank %x\n", reg >> 8); + return -1; + } + + ret = do_smbus_read_byte(SMBUS_IO_BASE, W83795_DEV, reg & 0xff); + return ret; +} + +static u8 w83795_write(u16 reg, u8 value) +{ + u32 err; + + err = w83795_set_bank(reg >> 8); + if (err < 0) { + printk(BIOS_DEBUG, "write faild to set bank %x\n", reg >> 8); + return -1; + } + + err = do_smbus_write_byte(SMBUS_IO_BASE, W83795_DEV, reg & 0xff, value); + return err; +} + +#if 0 +static void w83795_set_speed(void) +{ + +} + +static void w83795_set_ttti(void)//KR it works +{ + u32 i; + for (i = 0; i < 6; i++) { + //w83795_write(W83795_REG_TTTI(i), 0xa);//10 degree, default 40 + //w83795_write(W83795_REG_CTFS(i), 0x20);//32 degree, default 80 + } +} +#endif + +static void w83795_set_tfmr(w83795_fan_mode_t mode) +{ + u8 val; + u8 i; + + if ((mode == SMART_FAN_MODE) || (mode == THERMAL_CRUISE_MODE)) { + val = 0xFF; + } else { + val = 0x00; + } + + for (i = 0; i < 6; i++) + w83795_write(W83795_REG_TFMR(i), val); +} + +static u32 w83795_set_fan_mode(w83795_fan_mode_t mode) +{ + if (mode == SPEED_CRUISE_MODE) { + w83795_write(W83795_REG_FCMS1, 0xFF); + printk(BIOS_INFO, "W83795G/ADG work in Speed Cruise Mode\n"); + } else { + w83795_write(W83795_REG_FCMS1, 0x00); + if (mode == THERMAL_CRUISE_MODE) { + w83795_write(W83795_REG_FCMS2, 0x00); + printk(BIOS_INFO, "W83795G/ADG work in Thermal Cruise Mode\n"); + } else if (mode == SMART_FAN_MODE) { + w83795_write(W83795_REG_FCMS2, 0x3F); + printk(BIOS_INFO, "W83795G/ADG work in Smart Fan Mode\n"); + } else { + printk(BIOS_INFO, "W83795G/ADG work in Manual Mode\n"); + return -1; + } + } + + return 0; +} + +static void w83795_set_tss(void) +{ + u8 val; + + val = 0x00; + w83795_write(W83795_REG_TSS(0), val); /* Temp1, 2 */ + w83795_write(W83795_REG_TSS(1), val); /* Temp3, 4 */ + w83795_write(W83795_REG_TSS(2), val); /* Temp5, 6 */ +} + +static void w83795_set_fan(w83795_fan_mode_t mode) +{ + u8 i; + + /* select temperature sensor (TSS)*/ + w83795_set_tss(); + + /* select Temperature to Fan mapping Relationships (TFMR)*/ + w83795_set_tfmr(mode); + + /* set fan output controlled mode (FCMS)*/ + w83795_set_fan_mode(mode); + + /* Set Critical Temperature to Full Speed all fan (CTFS) */ + for (i = 0; i < 6; i++) { + w83795_write(W83795_REG_CTFS(i), 0x50); /* default 80 celsius degree */ + } + + if (mode == THERMAL_CRUISE_MODE) { + /* Set Target Temperature of Temperature Inputs (TTTI) */ + for (i = 0; i < 6; i++) { + w83795_write(W83795_REG_TTTI(i), 0x28); /* default 40 celsius degree */ + } + } else if (mode == SMART_FAN_MODE) { + /* Set the Relative Register-at SMART FAN IV Control Mode Table */ + //SFIV TODO + } + + /* Set Hystersis of Temperature (HT) */ +} + +void w83795_init(w83795_fan_mode_t mode) +{ + u8 i; + u8 val; + + if (do_smbus_read_byte(SMBUS_IO_BASE, W83795_DEV, 0x00) < 0) { + printk(BIOS_INFO, "W83795G/ADG Nuvoton H/W Monitor not found\n"); + return; + } + val = w83795_read(W83795_REG_CONFIG); + if ((val & W83795_REG_CONFIG_CONFIG48) == 0) + printk(BIOS_INFO, "Found 64 pin W83795G Nuvoton H/W Monitor\n"); + else if ((val & W83795_REG_CONFIG_CONFIG48) == 1) + printk(BIOS_INFO, "Found 48 pin W83795ADG Nuvoton H/W Monitor\n"); + + /* Reset */ + val |= W83795_REG_CONFIG_INIT; + w83795_write(W83795_REG_CONFIG, val); + + /* enable monitoring operations */ + val = w83795_read(W83795_REG_CONFIG); + val |= W83795_REG_CONFIG_START; + w83795_write(W83795_REG_CONFIG, val); + + w83795_set_fan(mode); + + printk(BIOS_INFO, "Fan CTFS(celsius) TTTI(celsius)\n"); + for (i = 0; i < 6; i++) { + val = w83795_read(W83795_REG_CTFS(i)); + printk(BIOS_INFO, " %x %d", i, val); + val = w83795_read(W83795_REG_TTTI(i)); + printk(BIOS_INFO, " %d\n", val); + } +} + diff --git a/src/mainboard/supermicro/h8qgi/w83795.h b/src/mainboard/supermicro/h8qgi/w83795.h new file mode 100644 index 0000000..76623a0 --- /dev/null +++ b/src/mainboard/supermicro/h8qgi/w83795.h @@ -0,0 +1,73 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * + * 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 + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _W83795_H_ +#define _W83795_H_ + +#define W83795_DEV 0x2F /* Host I2c Addr (strap to addr1 addr0 1 1, 0x5E) */ + +#define W83795_REG_I2C_ADDR 0xFC +#define W83795_REG_BANKSEL 0x00 +#define W83795_REG_CONFIG 0x01 +#define W83795_REG_CONFIG_START 0x01 +#define W83795_REG_CONFIG_CONFIG48 0x04 +#define W83795_REG_CONFIG_INIT 0x80 + +#define W83795_REG_TEMP_CTRL1 0x04 /* Temperature Monitoring Control Register */ +#define W83795_REG_TEMP_CTRL2 0x05 /* Temperature Monitoring Control Register */ +#define W83795_REG_FANIN_CTRL1 0x06 +#define W83795_REG_FANIN_CTRL2 0x07 +#define W83795_REG_TEMP_CTRL1_EN_DTS 0x20 /* Enable DTS (Digital Temperature Sensor) interface from INTEL PECI or AMD SB-TSI. */ + +#define W83795_REG_TSS(n) (0x209 + (n)) /* Temperature Source Selection Register */ +#define W83795_REG_TTTI(n) (0x260 + (n)) /* tarrget temperature W83795G/ADG will try to tune the fan output to keep */ +#define W83795_REG_CTFS(n) (0x268 + (n)) /* Critical Temperature to Full Speed all fan */ +#define W83795_REG_HT(n) (0x270 + (n)) /* Hystersis of Temperature */ +#define W83795_REG_DTSC 0x301 /* Digital Temperature Sensor Configuration */ + +#define W83795_REG_DTSE 0x302 /* Digital Temperature Sensor Enable */ +#define W83795_REG_DTS(n) (0x26 + (n)) +#define W83795_REG_VRLSB 0x3C + +#define W83795_TEMP_REG_TR1 0x21 +#define W83795_TEMP_REG_TR2 0x22 +#define W83795_TEMP_REG_TR3 0x23 +#define W83795_TEMP_REG_TR4 0x24 +#define W83795_TEMP_REG_TR5 0x1F +#define W83795_TEMP_REG_TR6 0x20 + +#define W83795_REG_FCMS1 0x201 +#define W83795_REG_FCMS2 0x208 +#define W83795_REG_TFMR(n) (0x202 + (n)) /*temperature to fam mappig*/ +#define W83795_REG_DFSP 0x20C + +#define W83795_REG_FTSH(n) (0x240 + (n) * 2) +#define W83795_REG_FTSL(n) (0x241 + (n) * 2) +#define W83795_REG_TFTS 0x250 + +typedef enum w83795_fan_mode { + SPEED_CRUISE_MODE, ///< Fan Speed Cruise mode keeps the fan speed in a specified range + THERMAL_CRUISE_MODE, ///< Thermal Cruise mode is an algorithm to control the fan speed to keep the temperature source around the TTTI + SMART_FAN_MODE, ///< Smart Fan mode offers 6 slopes to control the fan speed + MANUAL_MODE, ///< control manually +} w83795_fan_mode_t; + +void w83795_init(w83795_fan_mode_t mode); + +#endif