Uwe Hermann | 539500e | 2011-02-02 23:56:15 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Uwe Hermann | 539500e | 2011-02-02 23:56:15 +0000 | [diff] [blame] | 14 | */ |
| 15 | |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 16 | #include <arch/io.h> |
| 17 | #include <console/console.h> |
| 18 | #include <device/device.h> |
| 19 | #include <device/pnp.h> |
| 20 | #include <stdlib.h> |
Edward O'Callaghan | b57fef9 | 2014-06-17 20:13:08 +1000 | [diff] [blame] | 21 | #include <pc80/mc146818rtc.h> |
Evgeny Zinoviev | 384e9ae | 2018-08-30 02:18:48 +0300 | [diff] [blame] | 22 | #include <delay.h> |
Edward O'Callaghan | b57fef9 | 2014-06-17 20:13:08 +1000 | [diff] [blame] | 23 | |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 24 | #include "pmh7.h" |
Sven Schnelle | 1fa61eb | 2011-04-11 19:43:50 +0000 | [diff] [blame] | 25 | #include "chip.h" |
| 26 | |
| 27 | void pmh7_backlight_enable(int onoff) |
| 28 | { |
| 29 | if (onoff) |
| 30 | pmh7_register_set_bit(0x50, 5); |
| 31 | else |
| 32 | pmh7_register_clear_bit(0x50, 5); |
| 33 | } |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 34 | |
Sven Schnelle | 1b9d2ee | 2011-04-17 12:54:32 +0000 | [diff] [blame] | 35 | void pmh7_dock_event_enable(int onoff) |
| 36 | { |
| 37 | if (onoff) |
| 38 | pmh7_register_set_bit(0x60, 3); |
| 39 | else |
| 40 | pmh7_register_clear_bit(0x60, 3); |
| 41 | |
| 42 | } |
Sven Schnelle | 4fff74b | 2011-04-19 19:57:26 +0000 | [diff] [blame] | 43 | |
| 44 | void pmh7_touchpad_enable(int onoff) |
| 45 | { |
| 46 | if (onoff) |
| 47 | pmh7_register_clear_bit(0x51, 2); |
| 48 | else |
| 49 | pmh7_register_set_bit(0x51, 2); |
| 50 | } |
Sven Schnelle | bf9e930 | 2011-04-27 19:47:42 +0000 | [diff] [blame] | 51 | |
Vladimir Serbinenko | eada34f | 2014-01-11 04:22:35 +0100 | [diff] [blame] | 52 | void pmh7_trackpoint_enable(int onoff) |
| 53 | { |
| 54 | if (onoff) |
| 55 | pmh7_register_clear_bit(0x51, 0); |
| 56 | else |
| 57 | pmh7_register_set_bit(0x51, 0); |
| 58 | } |
| 59 | |
Sven Schnelle | bf9e930 | 2011-04-27 19:47:42 +0000 | [diff] [blame] | 60 | void pmh7_ultrabay_power_enable(int onoff) |
| 61 | { |
| 62 | if (onoff) |
| 63 | pmh7_register_clear_bit(0x62, 0); |
| 64 | else |
| 65 | pmh7_register_set_bit(0x62, 0); |
| 66 | } |
| 67 | |
Evgeny Zinoviev | 384e9ae | 2018-08-30 02:18:48 +0300 | [diff] [blame] | 68 | void pmh7_dgpu_power_enable(int onoff) |
| 69 | { |
| 70 | if (onoff) { |
| 71 | pmh7_register_clear_bit(0x50, 7); // DGPU_RST |
| 72 | pmh7_register_set_bit(0x50, 3); // DGPU_PWR |
| 73 | mdelay(10); |
| 74 | pmh7_register_set_bit(0x50, 7); // DGPU_RST |
| 75 | mdelay(50); |
| 76 | } else { |
| 77 | pmh7_register_clear_bit(0x50, 7); // DGPU_RST |
| 78 | udelay(100); |
| 79 | pmh7_register_clear_bit(0x50, 3); // DGPU_PWR |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | bool pmh7_dgpu_power_state(void) |
| 84 | { |
| 85 | return (pmh7_register_read(0x50) & 0x08) == 8; |
| 86 | } |
| 87 | |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 88 | void pmh7_register_set_bit(int reg, int bit) |
| 89 | { |
| 90 | char val; |
| 91 | |
Alexander Couzens | 74ab031 | 2018-08-17 18:36:56 +0200 | [diff] [blame] | 92 | val = pmh7_register_read(reg); |
| 93 | pmh7_register_write(reg, val | (1 << bit)); |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | void pmh7_register_clear_bit(int reg, int bit) |
| 97 | { |
| 98 | char val; |
| 99 | |
Alexander Couzens | 74ab031 | 2018-08-17 18:36:56 +0200 | [diff] [blame] | 100 | val = pmh7_register_read(reg); |
| 101 | pmh7_register_write(reg, val & ~(1 << bit)); |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | char pmh7_register_read(int reg) |
| 105 | { |
Alexander Couzens | 86b8d17 | 2018-08-17 18:47:52 +0200 | [diff] [blame] | 106 | outb(reg & 0xff, EC_LENOVO_PMH7_ADDR_L); |
| 107 | outb((reg & 0xff00) >> 8, EC_LENOVO_PMH7_ADDR_H); |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 108 | return inb(EC_LENOVO_PMH7_DATA); |
| 109 | } |
| 110 | |
| 111 | void pmh7_register_write(int reg, int val) |
| 112 | { |
Alexander Couzens | 86b8d17 | 2018-08-17 18:47:52 +0200 | [diff] [blame] | 113 | outb(reg & 0xff, EC_LENOVO_PMH7_ADDR_L); |
| 114 | outb((reg & 0xff00) >> 8, EC_LENOVO_PMH7_ADDR_H); |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 115 | outb(val, EC_LENOVO_PMH7_DATA); |
| 116 | } |
| 117 | |
Sven Schnelle | b538110 | 2011-10-15 17:31:01 +0200 | [diff] [blame] | 118 | #ifndef __PRE_RAM__ |
| 119 | #ifndef __SMM__ |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 120 | static void enable_dev(struct device *dev) |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 121 | { |
Sven Schnelle | 1fa61eb | 2011-04-11 19:43:50 +0000 | [diff] [blame] | 122 | struct ec_lenovo_pmh7_config *conf = dev->chip_info; |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 123 | struct resource *resource; |
Sven Schnelle | 51e1bc3 | 2011-06-05 21:32:51 +0200 | [diff] [blame] | 124 | u8 val; |
Uwe Hermann | 539500e | 2011-02-02 23:56:15 +0000 | [diff] [blame] | 125 | |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 126 | resource = new_resource(dev, EC_LENOVO_PMH7_INDEX); |
| 127 | resource->flags = IORESOURCE_IO | IORESOURCE_FIXED; |
| 128 | resource->base = EC_LENOVO_PMH7_BASE; |
| 129 | resource->size = 16; |
| 130 | resource->align = 5; |
| 131 | resource->gran = 5; |
Sven Schnelle | 1fa61eb | 2011-04-11 19:43:50 +0000 | [diff] [blame] | 132 | |
| 133 | pmh7_backlight_enable(conf->backlight_enable); |
Sven Schnelle | 1b9d2ee | 2011-04-17 12:54:32 +0000 | [diff] [blame] | 134 | pmh7_dock_event_enable(conf->dock_event_enable); |
Sven Schnelle | 51e1bc3 | 2011-06-05 21:32:51 +0200 | [diff] [blame] | 135 | |
Vladimir Serbinenko | 2c87668 | 2013-11-13 18:31:24 +0100 | [diff] [blame] | 136 | if (get_option(&val, "touchpad") != CB_SUCCESS) |
| 137 | val = 1; |
| 138 | pmh7_touchpad_enable(val); |
Vladimir Serbinenko | eada34f | 2014-01-11 04:22:35 +0100 | [diff] [blame] | 139 | |
| 140 | if (get_option(&val, "trackpoint") != CB_SUCCESS) |
| 141 | val = 1; |
| 142 | pmh7_trackpoint_enable(val); |
Patrick Rudolph | 3b0f542 | 2017-07-28 17:34:49 +0200 | [diff] [blame] | 143 | |
| 144 | printk(BIOS_INFO, "PMH7: ID %02x Revision %02x\n", |
| 145 | pmh7_register_read(EC_LENOVO_PMH7_REG_ID), |
| 146 | pmh7_register_read(EC_LENOVO_PMH7_REG_REV)); |
Sven Schnelle | 4a6c9d1 | 2011-02-01 10:44:26 +0000 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | struct chip_operations ec_lenovo_pmh7_ops = { |
| 150 | CHIP_NAME("Lenovo Power Management Hardware Hub 7") |
| 151 | .enable_dev = enable_dev, |
| 152 | }; |
Sven Schnelle | b538110 | 2011-10-15 17:31:01 +0200 | [diff] [blame] | 153 | #endif |
| 154 | #endif |