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-rw-r--r--src/ec/kontron/it8516e/Kconfig9
-rw-r--r--src/ec/kontron/it8516e/Makefile.inc1
-rw-r--r--src/ec/kontron/it8516e/acpi/ec.asl115
-rw-r--r--src/ec/kontron/it8516e/acpi/pm_channels.asl115
-rw-r--r--src/ec/kontron/it8516e/chip.h37
-rw-r--r--src/ec/kontron/it8516e/ec.c175
-rw-r--r--src/ec/kontron/it8516e/ec.h43
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