Sven Schnelle (svens@stackframe.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1166
-gerrit
commit dcff09d3c0800d6c0d8c94ab5598a84f9b762a1f Author: Sven Schnelle svens@stackframe.org Date: Tue Jul 3 21:33:47 2012 +0200
Add W83793 driver
Change-Id: I3ecb5c8666eea247bf4c31aaf9426bd9ef66bf68 Signed-off-by: Sven Schnelle svens@stackframe.org --- src/drivers/i2c/Kconfig | 1 + src/drivers/i2c/Makefile.inc | 1 + src/drivers/i2c/w83793/Kconfig | 2 + src/drivers/i2c/w83793/Makefile.inc | 1 + src/drivers/i2c/w83793/chip.h | 21 +++ src/drivers/i2c/w83793/w83793.c | 242 +++++++++++++++++++++++++++++++++++ src/drivers/i2c/w83793/w83793.h | 23 ++++ 7 files changed, 291 insertions(+), 0 deletions(-)
diff --git a/src/drivers/i2c/Kconfig b/src/drivers/i2c/Kconfig index 09c306b..4eb3f3f 100644 --- a/src/drivers/i2c/Kconfig +++ b/src/drivers/i2c/Kconfig @@ -5,3 +5,4 @@ source src/drivers/i2c/i2cmux/Kconfig source src/drivers/i2c/i2cmux2/Kconfig source src/drivers/i2c/lm63/Kconfig source src/drivers/i2c/w83795/Kconfig +source src/drivers/i2c/w83793/Kconfig diff --git a/src/drivers/i2c/Makefile.inc b/src/drivers/i2c/Makefile.inc index 97e9729..331b26c 100644 --- a/src/drivers/i2c/Makefile.inc +++ b/src/drivers/i2c/Makefile.inc @@ -5,3 +5,4 @@ subdirs-y += i2cmux subdirs-y += i2cmux2 subdirs-y += lm63 subdirs-y += w83795 +subdirs-y += w83793 diff --git a/src/drivers/i2c/w83793/Kconfig b/src/drivers/i2c/w83793/Kconfig new file mode 100644 index 0000000..d7f8cd1 --- /dev/null +++ b/src/drivers/i2c/w83793/Kconfig @@ -0,0 +1,2 @@ +config DRIVERS_I2C_W83793 + bool diff --git a/src/drivers/i2c/w83793/Makefile.inc b/src/drivers/i2c/w83793/Makefile.inc new file mode 100644 index 0000000..c25ddd5 --- /dev/null +++ b/src/drivers/i2c/w83793/Makefile.inc @@ -0,0 +1 @@ +driver-$(CONFIG_DRIVERS_I2C_W83793) += w83793.c diff --git a/src/drivers/i2c/w83793/chip.h b/src/drivers/i2c/w83793/chip.h new file mode 100644 index 0000000..dc3cd75 --- /dev/null +++ b/src/drivers/i2c/w83793/chip.h @@ -0,0 +1,21 @@ +extern struct chip_operations drivers_i2c_w83793_ops; + +struct drivers_i2c_w83793_config { + u8 mfc; + u8 fanin; + u8 peci_agent_conf; + u8 tcase0; + u8 tcase1; + u8 tcase2; + u8 tcase3; + u8 tr_enable; + u8 critical_temperature; + + u8 td1_fan_select; + u8 td2_fan_select; + u8 td3_fan_select; + u8 td4_fan_select; + + u8 tr1_fan_select; + u8 tr2_fan_select; +}; diff --git a/src/drivers/i2c/w83793/w83793.c b/src/drivers/i2c/w83793/w83793.c new file mode 100644 index 0000000..c2ed53d --- /dev/null +++ b/src/drivers/i2c/w83793/w83793.c @@ -0,0 +1,242 @@ +/* + * 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 <arch/cpu.h> +#include <console/console.h> +#include <device/device.h> +#include "w83793.h" +#include <device/smbus.h> +#include "chip.h" + +static int w83793_fan_limit(device_t dev, int fan, uint16_t limit) +{ + return smbus_write_byte(dev, 0x90 + fan * 2, limit >> 8) || + smbus_write_byte(dev, 0x91 + fan * 2, limit & 0xff); +} + +static int w83793_bank(device_t dev, int bank) +{ + return smbus_write_byte(dev, 0, bank); +} + +static int w83793_td_level(device_t dev, int fan, const char *level) +{ + fan *= 0x10; + + smbus_write_byte(dev, 0x30 + fan, level[0]); + smbus_write_byte(dev, 0x31 + fan, level[1]); + smbus_write_byte(dev, 0x32 + fan, level[2]); + smbus_write_byte(dev, 0x33 + fan, level[3]); + smbus_write_byte(dev, 0x34 + fan, level[4]); + smbus_write_byte(dev, 0x35 + fan, level[5]); + smbus_write_byte(dev, 0x36 + fan, level[6]); + return 0; +} + +static int w83793_tr_level(device_t dev, int fan, const char *level) +{ + fan *= 0x10; + + smbus_write_byte(dev, 0x70 + fan, level[0]); + smbus_write_byte(dev, 0x71 + fan, level[1]); + smbus_write_byte(dev, 0x72 + fan, level[2]); + smbus_write_byte(dev, 0x73 + fan, level[3]); + smbus_write_byte(dev, 0x74 + fan, level[4]); + smbus_write_byte(dev, 0x75 + fan, level[5]); + smbus_write_byte(dev, 0x76 + fan, level[6]); + return 0; +} + + +static int w83793_td_fan_level(device_t dev, int fan, const char *level) +{ + fan *= 0x10; + + smbus_write_byte(dev, 0x38 + fan, level[0]); + smbus_write_byte(dev, 0x39 + fan, level[1]); + smbus_write_byte(dev, 0x3a + fan, level[2]); + smbus_write_byte(dev, 0x3b + fan, level[3]); + smbus_write_byte(dev, 0x3c + fan, level[4]); + smbus_write_byte(dev, 0x3d + fan, level[5]); + smbus_write_byte(dev, 0x3e + fan, level[6]); + return 0; +} + +static int w83793_tr_fan_level(device_t dev, int fan, const char *level) +{ + fan *= 0x10; + + smbus_write_byte(dev, 0x78 + fan, level[0]); + smbus_write_byte(dev, 0x79 + fan, level[1]); + smbus_write_byte(dev, 0x7a + fan, level[2]); + smbus_write_byte(dev, 0x7b + fan, level[3]); + smbus_write_byte(dev, 0x7c + fan, level[4]); + smbus_write_byte(dev, 0x7d + fan, level[5]); + smbus_write_byte(dev, 0x7e + fan, level[6]); + return 0; +} + + +static void w83793_init(device_t dev) +{ + struct drivers_i2c_w83793_config *config = dev->chip_info; + uint16_t id; + int i; + + if (w83793_bank(dev, 0)) + printk(BIOS_ERR, "%s: failed\n", __func__); + + if (!config) + return; + + id = smbus_read_byte(dev, 0x0d); + w83793_bank(dev, 0x80); + id |= smbus_read_byte(dev, 0x0d) << 8; + printk(BIOS_ERR, "ID: %04x\n", id); + + /* reset configuration */ + smbus_write_byte(dev, 0x40, 0x80); + smbus_write_byte(dev, 0x51, 0x06); + + /* Multi function control */ + smbus_write_byte(dev, 0x58, config->mfc); + + /* FANIN_Ctrl */ + smbus_write_byte(dev, 0x5c, config->fanin); + + /* Temperature reported by PECI */ + smbus_write_byte(dev, 0x5e, 0xff); + /* TR monitor enable */ + smbus_write_byte(dev, 0x5f, config->tr_enable); + /* PECI Agent configuration */ + smbus_write_byte(dev, 0xd0, config->peci_agent_conf); + /* TCase */ + smbus_write_byte(dev, 0xd1, config->tcase0); + smbus_write_byte(dev, 0xd2, config->tcase1); + smbus_write_byte(dev, 0xd3, config->tcase2); + smbus_write_byte(dev, 0xd4, config->tcase3); + /* PECI Reportstyle */ + smbus_write_byte(dev, 0xd5, 0x00); + + for (i = 0; i < 9; i++) + w83793_fan_limit(dev, i, 0x768); + + /* Fan output style control */ + smbus_write_byte(dev, 0xb0, 0x00); + smbus_write_byte(dev, 0xb1, 0x00); + + /* FAN Uptime */ + smbus_write_byte(dev, 0xc3, 0x02); + + /* FAN downtime */ + smbus_write_byte(dev, 0xc4, 0x03); + + /* ALL FAN critical temperature */ + smbus_write_byte(dev, 0xc5, config->critical_temperature); + + /* Temperature offset */ + smbus_write_byte(dev, 0xa8, 0xf9); + smbus_write_byte(dev, 0xa9, 0xf9); + smbus_write_byte(dev, 0xaa, 0xf9); + smbus_write_byte(dev, 0xab, 0xf9); + + /* BANK 2 */ + smbus_write_byte(dev, 0x00, 0x02); + + /* TD FAN select */ + smbus_write_byte(dev, 0x01, config->td1_fan_select); + smbus_write_byte(dev, 0x02, config->td2_fan_select); + smbus_write_byte(dev, 0x03, config->td3_fan_select); + smbus_write_byte(dev, 0x04, config->td4_fan_select); + + smbus_write_byte(dev, 0x05, config->tr1_fan_select); + smbus_write_byte(dev, 0x06, config->tr2_fan_select); + + /* FAN control mode */ + smbus_write_byte(dev, 0x07, 0x00); + + /* hysteresis tolerance */ + smbus_write_byte(dev, 0x08, 0xaa); + smbus_write_byte(dev, 0x09, 0xaa); + + /* FanNonStop */ + smbus_write_byte(dev, 0x18, 0x1d); + smbus_write_byte(dev, 0x19, 0x04); + smbus_write_byte(dev, 0x1a, 0x04); + smbus_write_byte(dev, 0x1b, 0x04); + smbus_write_byte(dev, 0x1c, 0x04); + smbus_write_byte(dev, 0x1d, 0x04); + smbus_write_byte(dev, 0x1e, 0x04); + smbus_write_byte(dev, 0x1f, 0x04); + + /* FanStart */ + smbus_write_byte(dev, 0x20, 0x08); + smbus_write_byte(dev, 0x21, 0x08); + smbus_write_byte(dev, 0x22, 0x08); + smbus_write_byte(dev, 0x23, 0x08); + smbus_write_byte(dev, 0x24, 0x08); + smbus_write_byte(dev, 0x25, 0x08); + smbus_write_byte(dev, 0x26, 0x08); + smbus_write_byte(dev, 0x27, 0x08); + + for (i = 0; i < 4; i++) + w83793_td_level(dev, i, (const char[]){ 0x32, 0x32, 0x32, 0x32, 0x37, 0x41, 0x4b }); + + for (i = 0; i < 2; i++) + w83793_tr_level(dev, i, (const char[]){ 0x1e, 0x23, 0x28, 0x2d, 0x32, 0x37, 0x3c }); + + for (i = 0; i < 4; i++) + w83793_td_fan_level(dev, i, (const char[]){ 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x26 }); + + for (i = 0; i < 2; i++) + w83793_tr_fan_level(dev, i, (const char[]){ 0x08, 0x0c, 0x10, 0x18, 0x20, 0x30, 0x38 }); + + + smbus_write_byte(dev, 0x00, 0x00); + + /* Fan output style */ + smbus_write_byte(dev, 0xb4, 0x00); + smbus_write_byte(dev, 0xb5, 0x00); + + /* start monitoring operation */ + smbus_write_byte(dev, 0x40, 0x09); + +} + +static void w83793_noop(device_t dummy) +{ +} + +static struct device_operations w83793_operations = { + .read_resources = w83793_noop, + .set_resources = w83793_noop, + .enable_resources = w83793_noop, + .init = w83793_init, +}; + +static void enable_dev(device_t dev) +{ + dev->ops = &w83793_operations; +} + +struct chip_operations drivers_i2c_w83793_ops = { + CHIP_NAME("Nuvoton W83793 Hardware Monitor") + .enable_dev = enable_dev, +}; diff --git a/src/drivers/i2c/w83793/w83793.h b/src/drivers/i2c/w83793/w83793.h new file mode 100644 index 0000000..5613421 --- /dev/null +++ b/src/drivers/i2c/w83793/w83793.h @@ -0,0 +1,23 @@ +/* + * 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 W83793_H +#define W83793_H + +#endif