diff options
Diffstat (limited to 'src/ec/kontron/it8516e')
| -rw-r--r-- | src/ec/kontron/it8516e/Kconfig | 9 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/acpi/ec.asl | 115 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/acpi/pm_channels.asl | 115 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/chip.h | 37 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/ec.c | 175 | ||||
| -rw-r--r-- | src/ec/kontron/it8516e/ec.h | 43 |
7 files changed, 495 insertions, 0 deletions
diff --git a/src/ec/kontron/it8516e/Kconfig b/src/ec/kontron/it8516e/Kconfig new file mode 100644 index 0000000000..2da473e305 --- /dev/null +++ b/src/ec/kontron/it8516e/Kconfig @@ -0,0 +1,9 @@ +config EC_KONTRON_IT8516E + select EC_ACPI + bool + help + Kontron uses an ITE IT8516E on the KTQM77. It's firmware might + come from Fintek (mentioned as Finte*c* somewhere in their Linux + driver). + The KTQM77 is an embedded board and the IT8516E seems to be + only used for fan control and GPIO. diff --git a/src/ec/kontron/it8516e/Makefile.inc b/src/ec/kontron/it8516e/Makefile.inc new file mode 100644 index 0000000000..1275cf3717 --- /dev/null +++ b/src/ec/kontron/it8516e/Makefile.inc @@ -0,0 +1 @@ +ramstage-y += ec.c diff --git a/src/ec/kontron/it8516e/acpi/ec.asl b/src/ec/kontron/it8516e/acpi/ec.asl new file mode 100644 index 0000000000..bdae967197 --- /dev/null +++ b/src/ec/kontron/it8516e/acpi/ec.asl @@ -0,0 +1,115 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * 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 this file into a mainboard's DSDT _SB device tree and it will + * expose the IT8516E in the configuration used by Kontron: + * 2xUART, + * PS/2 Mouse, Keyboard + * Two PM Channels + * + * It allows the change of IO ports, IRQs and DMA settings on the devices + * and disabling and reenabling logical devices. + * + * Controlled by the following preprocessor defines: + * IT8516E_EC_DEV Device identifier for this EC (e.g. EC0) + * SUPERIO_PNP_BASE I/o address of the first PnP configuration register + * IT8516E_FIRST_DATA I/o address of the EC_DATA register on the first + * pm channel + * IT8516E_FIRST_SC I/o address of the EC_SC register on the first + * pm channel + * IT8516E_SECOND_DATA I/o address of the EC_DATA register on the second + * pm channel + * IT8516E_SECOND_SC I/o address of the EC_SC register on the second + * pm channel + */ + +#undef SUPERIO_CHIP_NAME +#define SUPERIO_CHIP_NAME IT8516E +#include <superio/acpi/pnp.asl> + +Device(IT8516E_EC_DEV) { + Name (_HID, EisaId("PNP0A05")) + Name (_STR, Unicode("Kontron IT8516E Embedded Controller")) + Name (_UID, SUPERIO_UID(IT8516E_EC_DEV,)) + + /* SuperIO configuration ports */ + OperationRegion (CREG, SystemIO, SUPERIO_PNP_BASE, 0x02) + Field (CREG, ByteAcc, NoLock, Preserve) + { + ADDR, 8, + DATA, 8 + } + IndexField (ADDR, DATA, ByteAcc, NoLock, Preserve) + { + Offset (0x07), + PNP_LOGICAL_DEVICE, 8, /* Logical device selector */ + + Offset (0x30), + PNP_DEVICE_ACTIVE, 1, /* Logical device activation */ + + Offset (0x60), + PNP_IO0_HIGH_BYTE, 8, /* First I/O port base - high byte */ + PNP_IO0_LOW_BYTE, 8, /* First I/O port base - low byte */ + PNP_IO1_HIGH_BYTE, 8, /* Second I/O port base - high byte */ + PNP_IO1_LOW_BYTE, 8, /* Second I/O port base - low byte */ + + Offset (0x70), + PNP_IRQ0, 8, /* First IRQ */ + } + + Method (_CRS) + { + /* Announce the used i/o ports to the OS */ + Return (ResourceTemplate () { + IO (Decode16, SUPERIO_PNP_BASE, SUPERIO_PNP_BASE, 0x01, 0x02) + }) + } + + #undef PNP_ENTER_MAGIC_1ST + #undef PNP_ENTER_MAGIC_2ND + #undef PNP_ENTER_MAGIC_3RD + #undef PNP_EXIT_MAGIC_1ST + #include <superio/acpi/pnp_config.asl> + + Method (_PSC) + { + /* No PM: always in C0 */ + Return (0) + } + + #undef SUPERIO_UART_LDN + #undef SUPERIO_UART_DDN + #undef SUPERIO_UART_PM_REG + #define SUPERIO_UART_LDN 1 + #include <superio/acpi/pnp_uart.asl> + + #undef SUPERIO_UART_LDN + #define SUPERIO_UART_LDN 2 + #include <superio/acpi/pnp_uart.asl> + + #undef SUPERIO_KBC_LDN + #undef SUPERIO_KBC_PS2M + #undef SUPERIO_KBC_PS2LDN + #define SUPERIO_KBC_LDN 6 + #define SUPERIO_KBC_PS2LDN 5 + #include <superio/acpi/pnp_kbc.asl> + + #include "pm_channels.asl" +} diff --git a/src/ec/kontron/it8516e/acpi/pm_channels.asl b/src/ec/kontron/it8516e/acpi/pm_channels.asl new file mode 100644 index 0000000000..f18ac364d2 --- /dev/null +++ b/src/ec/kontron/it8516e/acpi/pm_channels.asl @@ -0,0 +1,115 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * 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 + */ + +#ifdef IT8516E_FIRST_DATA +Device (PM1) { + Name (_HID, EisaId("PNP0C02")) + Name (_STR, Unicode("IT8516E PM Channel 1")) + Name (_UID, SUPERIO_UID(PM, 1)) + + /* + * The EC firmware exposes CPU temperature through ec ram + * on the first PM channel. + */ + + #undef EC_DATA_IO + #define EC_DATA_IO IT8516E_FIRST_DATA + #undef EC_SC_IO + #define EC_SC_IO IT8516E_FIRST_SC + #include <ec/acpi/ec.asl> + + Method (_CRS) + { + /* Announce the used i/o ports to the OS */ + Return (ResourceTemplate () { + IO (Decode16, IT8516E_FIRST_DATA, IT8516E_FIRST_DATA, 0x01, 0x01) + IO (Decode16, IT8516E_FIRST_SC, IT8516E_FIRST_SC, 0x01, 0x01) + }) + } + + /* + * Get CPU temperature from first PM channel (in 10th Kelvin) + */ + Method (CTK) + { + Store (EC_READ (0x52), Local0) + If (And (Local0, EC_ERROR_MASK)) { + Return (0) + } + Multiply (Local0, 10, Local0) /* Convert to 10th °C */ + Return (Add (Local0, 2732)) /* Return as 10th Kelvin */ + } +} +#endif + +#ifdef IT8516E_SECOND_DATA +Device (PM2) { + Name (_HID, EisaId("PNP0C02")) + Name (_STR, Unicode("IT8516E PM Channel 2")) + Name (_UID, SUPERIO_UID(PM, 2)) + + /* + * The EC firmware exposes fan and GPIO control through the + * second PM channel. + */ + + #undef EC_DATA_IO + #define EC_DATA_IO IT8516E_SECOND_DATA + #undef EC_SC_IO + #define EC_SC_IO IT8516E_SECOND_SC + #include <ec/acpi/ec.asl> + + Method (_CRS) + { + /* Announce the used i/o ports to the OS */ + Return (ResourceTemplate () { + IO (Decode16, IT8516E_SECOND_DATA, IT8516E_SECOND_DATA, 0x01, 0x01) + IO (Decode16, IT8516E_SECOND_SC, IT8516E_SECOND_SC, 0x01, 0x01) + }) + } + + /* + * Get CPU temperature from second PM channel (in 10th Kelvin) + */ + Method (CTK) + { + Acquire (EC_MUTEX, 0xffff) + Store (SEND_EC_COMMAND (0x20), Local0) /* GET_CPUTEMP */ + If (And (Local0, EC_ERROR_MASK)) { + Release (EC_MUTEX) + Return (0) + } + Store (RECV_EC_DATA (), Local0) /* Temp low byte in 64th °C */ + If (And (Local0, EC_ERROR_MASK)) { + Release (EC_MUTEX) + Return (0) + } + Store (RECV_EC_DATA (), Local1) /* Temp high byte in 64th °C */ + If (And (Local1, EC_ERROR_MASK)) { + Release (EC_MUTEX) + Return (0) + } + Release (EC_MUTEX) + + Or (ShiftLeft (Local1, 8), Local0, Local0) + Store (Divide (Multiply (Local0, 10), 64), Local0) /* Convert to 10th °C */ + Return (Add (Local0, 2732)) /* Return as 10th Kelvin */ + } +} +#endif diff --git a/src/ec/kontron/it8516e/chip.h b/src/ec/kontron/it8516e/chip.h new file mode 100644 index 0000000000..dddc5e0846 --- /dev/null +++ b/src/ec/kontron/it8516e/chip.h @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * 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 EC_KONTRON_IT8516E_CHIP_H +#define EC_KONTRON_IT8516E_CHIP_H + +#include "ec.h" + +struct ec_kontron_it8516e_config { + /* + * Per fan settings + * Can be overwritten by fan1_mode, fan2_mode, fan1_target + * and fan2_target options + */ + enum it8516e_fan_modes default_fan_mode[2]; + u16 default_fan_target[2]; /* PWM: % / Speed: RPM / Thermal: °C */ +}; + +#endif /* EC_KONTRON_IT8516E_CHIP_H */ diff --git a/src/ec/kontron/it8516e/ec.c b/src/ec/kontron/it8516e/ec.c new file mode 100644 index 0000000000..f4df9c777c --- /dev/null +++ b/src/ec/kontron/it8516e/ec.c @@ -0,0 +1,175 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * 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 <stdlib.h> +#include <console/console.h> +#include <device/device.h> +#include <device/pnp.h> +#include <ec/acpi/ec.h> +#include <pc80/mc146818rtc.h> + +#include "ec.h" +#include "chip.h" + +typedef struct ec_kontron_it8516e_config config_t; + +enum { /* EC commands */ + IT8516E_CMD_GET_FAN_MODE = 0x10, + IT8516E_CMD_SET_FAN_MODE = 0x11, + IT8516E_CMD_GET_FAN_PWM = 0x12, + IT8516E_CMD_SET_FAN_PWM = 0x13, + IT8516E_CMD_GET_FAN_SPEED = 0x14, + IT8516E_CMD_SET_FAN_SPEED = 0x15, + IT8516E_CMD_GET_FAN_TEMP = 0x16, + IT8516E_CMD_SET_FAN_TEMP = 0x17, +}; + +static void it8516e_set_fan_mode(const u8 idx, const u8 mode) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_MODE)) + return; + if (send_ec_data(idx)) + return; + send_ec_data(mode); +} + +static void it8516e_set_fan_pwm(const u8 idx, const u8 pwm) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_PWM)) + return; + if (send_ec_data(idx)) + return; + send_ec_data(pwm); +} + +static void it8516e_set_fan_speed(const u8 idx, const u16 speed) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_SPEED)) + return; + if (send_ec_data(idx)) + return; + if (send_ec_data(speed & 0xff)) + return; + send_ec_data(speed >> 8); +} + +static void it8516e_set_fan_temperature(const u8 idx, const u8 temp) +{ + if (send_ec_command(IT8516E_CMD_SET_FAN_TEMP)) + return; + if (send_ec_data(idx)) + return; + if (send_ec_data((temp << 6) & 0xff)) + return; + send_ec_data(((temp << 6) >> 8) & 0xff); +} + +static void it8516e_set_fan_from_options(const config_t *const config, + const u8 fan_idx) +{ + static char fanX_mode[] = "fanX_mode"; + static char fanX_target[] = "fanX_target"; + + u8 fan_mode = config->default_fan_mode[fan_idx]; + u16 fan_target = config->default_fan_target[fan_idx]; + + fanX_mode[3] = '1' + fan_idx; + get_option(&fan_mode, fanX_mode); + if (!fan_mode) + fan_mode = IT8516E_MODE_AUTO; + it8516e_set_fan_mode(fan_idx, fan_mode); + + fanX_target[3] = '1' + fan_idx; + get_option(&fan_target, fanX_target); + switch (fan_mode) { + case IT8516E_MODE_AUTO: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to auto.\n", + fan_idx + 1); + break; + case IT8516E_MODE_PWM: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d%% PWM.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_pwm(fan_idx, fan_target); + break; + case IT8516E_MODE_SPEED: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d RPMs.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_speed(fan_idx, fan_target); + break; + case IT8516E_MODE_THERMAL: + printk(BIOS_DEBUG, + "Setting it8516e fan%d " + "control to %d°C.\n", + fan_idx + 1, fan_target); + it8516e_set_fan_temperature( + fan_idx, fan_target); + break; + } +} + +static void it8516e_pm2_init(const device_t dev) +{ + const config_t *const config = dev->chip_info; + + /* TODO: Set frequency / divider? */ + + ec_set_ports(find_resource(dev, PNP_IDX_IO1)->base, + find_resource(dev, PNP_IDX_IO0)->base); + + it8516e_set_fan_from_options(config, 0); + it8516e_set_fan_from_options(config, 1); +} + +static struct device_operations it8516e_pm2_ops = { + .read_resources = pnp_read_resources, + .set_resources = pnp_set_resources, + .enable_resources = pnp_enable_resources, + .enable = pnp_enable, + .init = it8516e_pm2_init +}; + +static struct pnp_info it8516e_dev_infos[] = { + { NULL, IT8516E_LDN_UART1, PNP_IO0 | PNP_IRQ0, { 0x07f8, }, }, + { NULL, IT8516E_LDN_UART2, PNP_IO0 | PNP_IRQ0, { 0x07f8, }, }, + { NULL, IT8516E_LDN_SWUC, PNP_IO0 | PNP_IRQ0, { 0xff7e0, }, }, + { NULL, IT8516E_LDN_MOUSE, PNP_IRQ0, }, + { NULL, IT8516E_LDN_KBD, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { NULL, IT8516E_LDN_SMFI, PNP_IO0 | PNP_IRQ0, { 0xfff0, }, }, + { NULL, IT8516E_LDN_BRAM, PNP_IO0 | PNP_IO1, { 0xfffe, }, { 0xfffe, }, }, + { NULL, IT8516E_LDN_PM1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { &it8516e_pm2_ops, IT8516E_LDN_PM2, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, + { NULL, IT8516E_LDN_PM3, PNP_IO0 | PNP_IO1 | PNP_IRQ0, { 0x07ff, }, { 0x07ff, }, }, +}; + +static void it8516e_enable(const device_t dev) +{ + pnp_enable_devices(dev, &pnp_ops, + ARRAY_SIZE(it8516e_dev_infos), it8516e_dev_infos); +} + +const struct chip_operations ec_kontron_it8516e_ops = { + CHIP_NAME("Kontron (Fintec/ITE) IT8516E EC") + .enable_dev = it8516e_enable +}; diff --git a/src/ec/kontron/it8516e/ec.h b/src/ec/kontron/it8516e/ec.h new file mode 100644 index 0000000000..5bd2801e20 --- /dev/null +++ b/src/ec/kontron/it8516e/ec.h @@ -0,0 +1,43 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 secunet Security Networks AG + * + * 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 EC_KONTRON_IT8516E_EC_H +#define EC_KONTRON_IT8516E_EC_H + +enum { /* PNP logical device numbers */ + IT8516E_LDN_UART1 = 0x01, + IT8516E_LDN_UART2 = 0x02, + IT8516E_LDN_SWUC = 0x04, + IT8516E_LDN_MOUSE = 0x05, + IT8516E_LDN_KBD = 0x06, + IT8516E_LDN_SMFI = 0x0f, + IT8516E_LDN_BRAM = 0x10, + IT8516E_LDN_PM1 = 0x11, + IT8516E_LDN_PM2 = 0x12, + IT8516E_LDN_PM3 = 0x17, +}; + +enum it8516e_fan_modes { /* Possible modes of fan control */ + IT8516E_MODE_AUTO = 0x80, + IT8516E_MODE_PWM = 0x01, + IT8516E_MODE_SPEED = 0x02, + IT8516E_MODE_THERMAL = 0x03, +}; + +#endif |