src/mainboard/lenovo/x60/dock.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <device/device.h>
   5 #include <arch/io.h>
   6 #include <delay.h>
   7 #include "dock.h"
   8 #include <southbridge/intel/i82801gx/i82801gx.h>
   9 #include <superio/nsc/pc87392/pc87392.h>
  10
  11 static void dlpc_write_register(int reg, int value)
  12 {
  13         outb(reg, 0x164e);
  14         outb(value, 0x164f);
  15 }
  16
  17 static u8 dlpc_read_register(int reg)
  18 {
  19         outb(reg, 0x164e);
  20         return inb(0x164f);
  21 }
  22
  23 static void dock_write_register(int reg, int value)
  24 {
  25         outb(reg, 0x2e);
  26         outb(value, 0x2f);
  27 }
  28
  29 static u8 dock_read_register(int reg)
  30 {
  31         outb(reg, 0x2e);
  32         return inb(0x2f);
  33 }
  34
  35 static void dlpc_gpio_set_mode(int port, int mode)
  36 {
  37         dlpc_write_register(0xf0, port);
  38         dlpc_write_register(0xf1, mode);
  39 }
  40
  41 static void dock_gpio_set_mode(int port, int mode, int irq)
  42 {
  43         dock_write_register(0xf0, port);
  44         dock_write_register(0xf1, mode);
  45         dock_write_register(0xf2, irq);
  46 }
  47
  48 static void dlpc_gpio_init(void)
  49 {
  50         /* Select GPIO module */
  51         dlpc_write_register(0x07, 0x07);
  52         /* GPIO Base Address 0x1680 */
  53         dlpc_write_register(0x60, 0x16);
  54         dlpc_write_register(0x61, 0x80);
  55
  56         /* Activate GPIO */
  57         dlpc_write_register(0x30, 0x01);
  58
  59         dlpc_gpio_set_mode(0x00, 3);
  60         dlpc_gpio_set_mode(0x01, 3);
  61         dlpc_gpio_set_mode(0x02, 0);
  62         dlpc_gpio_set_mode(0x03, 3);
  63         dlpc_gpio_set_mode(0x04, 4);
  64         dlpc_gpio_set_mode(0x20, 4);
  65         dlpc_gpio_set_mode(0x21, 4);
  66         dlpc_gpio_set_mode(0x23, 4);
  67 }
  68
  69 int dlpc_init(void)
  70 {
  71         int timeout = 1000;
  72
  73         /* Enable 14.318MHz CLK on CLKIN */
  74         dlpc_write_register(0x29, 0xa0);
  75         while (!(dlpc_read_register(0x29) & 0x10) && timeout--)
  76                 udelay(1000);
  77
  78         if (!timeout)
  79                 return 1;
  80
  81         /* Select DLPC module */
  82         dlpc_write_register(0x07, 0x19);
  83         /* DLPC Base Address 0x164c */
  84         dlpc_write_register(0x60, 0x16);
  85         dlpc_write_register(0x61, 0x4c);
  86         /* Activate DLPC */
  87         dlpc_write_register(0x30, 0x01);
  88
  89         dlpc_gpio_init();
  90
  91         return 0;
  92 }
  93
  94 int dock_connect(void)
  95 {
  96         int timeout = 1000;
  97
  98         outb(0x07, 0x164c);
  99
 100         timeout = 1000;
 101
 102         while (!(inb(0x164c) & 8) && timeout--)
 103                 udelay(1000);
 104
 105         if (!timeout) {
 106                 /* docking failed, disable DLPC switch */
 107                 outb(0x00, 0x164c);
 108                 dlpc_write_register(0x30, 0x00);
 109                 return 1;
 110         }
 111
 112         /* Assert D_PLTRST# */
 113         outb(0xfe, 0x1680);
 114         udelay(100000);
 115         /* Deassert D_PLTRST# */
 116         outb(0xff, 0x1680);
 117
 118         udelay(100000);
 119
 120         /* startup 14.318MHz Clock */
 121         dock_write_register(0x29, 0x06);
 122         /* wait until clock is settled */
 123         timeout = 1000;
 124         while (!(dock_read_register(0x29) & 0x08) && timeout--)
 125                 udelay(1000);
 126
 127         if (!timeout)
 128                 return 1;
 129
 130         /* Pin  6: CLKRUN
 131          * Pin 72:  #DR1
 132          * Pin 19: #SMI
 133          * Pin 73: #MTR
 134          */
 135         dock_write_register(0x24, 0x37);
 136
 137         /* PNF active HIGH */
 138         dock_write_register(0x25, 0xa0);
 139
 140         /* disable FDC */
 141         dock_write_register(0x26, 0x01);
 142
 143         /* Enable GPIO IRQ to #SMI */
 144         dock_write_register(0x28, 0x02);
 145
 146         /* select GPIO */
 147         dock_write_register(0x07, 0x07);
 148
 149         /* set base address */
 150         dock_write_register(0x60, 0x16);
 151         dock_write_register(0x61, 0x20);
 152
 153         /* init GPIO pins */
 154         dock_gpio_set_mode(0x00, PC87392_GPIO_PIN_DEBOUNCE |
 155                                  PC87392_GPIO_PIN_PULLUP, 0x00);
 156
 157         dock_gpio_set_mode(0x01, PC87392_GPIO_PIN_DEBOUNCE |
 158                                  PC87392_GPIO_PIN_PULLUP,
 159                                  PC87392_GPIO_PIN_TRIGGERS_SMI);
 160
 161         dock_gpio_set_mode(0x02, PC87392_GPIO_PIN_PULLUP, 0x00);
 162         dock_gpio_set_mode(0x03, PC87392_GPIO_PIN_PULLUP, 0x00);
 163         dock_gpio_set_mode(0x04, PC87392_GPIO_PIN_PULLUP, 0x00);
 164         dock_gpio_set_mode(0x05, PC87392_GPIO_PIN_PULLUP, 0x00);
 165         dock_gpio_set_mode(0x06, PC87392_GPIO_PIN_PULLUP, 0x00);
 166         dock_gpio_set_mode(0x07, PC87392_GPIO_PIN_PULLUP, 0x02);
 167
 168         dock_gpio_set_mode(0x10, PC87392_GPIO_PIN_DEBOUNCE |
 169                                  PC87392_GPIO_PIN_PULLUP,
 170                                  PC87392_GPIO_PIN_TRIGGERS_SMI);
 171
 172         dock_gpio_set_mode(0x11, PC87392_GPIO_PIN_PULLUP, 0x00);
 173         dock_gpio_set_mode(0x12, PC87392_GPIO_PIN_PULLUP, 0x00);
 174         dock_gpio_set_mode(0x13, PC87392_GPIO_PIN_PULLUP, 0x00);
 175         dock_gpio_set_mode(0x14, PC87392_GPIO_PIN_PULLUP, 0x00);
 176         dock_gpio_set_mode(0x15, PC87392_GPIO_PIN_PULLUP, 0x00);
 177         dock_gpio_set_mode(0x16, PC87392_GPIO_PIN_PULLUP |
 178                                  PC87392_GPIO_PIN_OE, 0x00);
 179
 180         dock_gpio_set_mode(0x17, PC87392_GPIO_PIN_PULLUP, 0x00);
 181
 182         dock_gpio_set_mode(0x20, PC87392_GPIO_PIN_TYPE_PUSH_PULL |
 183                                  PC87392_GPIO_PIN_OE, 0x00);
 184
 185         dock_gpio_set_mode(0x21, PC87392_GPIO_PIN_TYPE_PUSH_PULL |
 186                                  PC87392_GPIO_PIN_OE, 0x00);
 187
 188         dock_gpio_set_mode(0x22, PC87392_GPIO_PIN_PULLUP, 0x00);
 189         dock_gpio_set_mode(0x23, PC87392_GPIO_PIN_PULLUP, 0x00);
 190         dock_gpio_set_mode(0x24, PC87392_GPIO_PIN_PULLUP, 0x00);
 191         dock_gpio_set_mode(0x25, PC87392_GPIO_PIN_PULLUP, 0x00);
 192         dock_gpio_set_mode(0x26, PC87392_GPIO_PIN_PULLUP, 0x00);
 193         dock_gpio_set_mode(0x27, PC87392_GPIO_PIN_PULLUP, 0x00);
 194
 195         dock_gpio_set_mode(0x30, PC87392_GPIO_PIN_PULLUP, 0x00);
 196         dock_gpio_set_mode(0x31, PC87392_GPIO_PIN_PULLUP, 0x00);
 197         dock_gpio_set_mode(0x32, PC87392_GPIO_PIN_PULLUP, 0x00);
 198         dock_gpio_set_mode(0x33, PC87392_GPIO_PIN_PULLUP, 0x00);
 199         dock_gpio_set_mode(0x34, PC87392_GPIO_PIN_PULLUP, 0x00);
 200
 201         dock_gpio_set_mode(0x35, PC87392_GPIO_PIN_PULLUP |
 202                                  PC87392_GPIO_PIN_OE, 0x00);
 203
 204         dock_gpio_set_mode(0x36, PC87392_GPIO_PIN_PULLUP, 0x00);
 205         dock_gpio_set_mode(0x37, PC87392_GPIO_PIN_PULLUP, 0x00);
 206
 207         /* enable GPIO */
 208         dock_write_register(0x30, 0x01);
 209
 210         outb(0x00, 0x1628);
 211         outb(0x00, 0x1623);
 212         outb(0x82, 0x1622);
 213         outb(0xff, 0x1624);
 214
 215         /* Enable USB and Ultrabay power */
 216         outb(0x03, 0x1628);
 217
 218         dock_write_register(0x07, 0x03);
 219         dock_write_register(0x30, 0x01);
 220         return 0;
 221 }
 222
 223 void dock_disconnect(void)
 224 {
 225         printk(BIOS_DEBUG, "%s enter\n", __func__);
 226         /* disconnect LPC bus */
 227         outb(0x00, 0x164c);
 228         udelay(10000);
 229
 230         /* Assert PLTRST and DLPCPD */
 231         outb(0xfc, 0x1680);
 232         udelay(10000);
 233
 234         /* disable Ultrabay and USB Power */
 235         outb(0x00, 0x1628);
 236         udelay(10000);
 237
 238         printk(BIOS_DEBUG, "%s finish\n", __func__);
 239 }
 240
 241 int dock_present(void)
 242 {
 243         return !((inw(DEFAULT_GPIOBASE + 0x0c) >> 13) & 1);
 244 }
 245
 246 int dock_ultrabay_device_present(void)
 247 {
 248         return inb(0x1621) & 0x02 ? 0 : 1;
 249 }