src/soc/intel/tigerlake/sd.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 /*
  16  * This file is created based on Intel Tiger Lake Processor PCH Datasheet
  17  * Document number: 575857
  18  * Chapter number: 26
  19  */
  20
  21 #include <intelblocks/sd.h>
  22 #include <soc/soc_chip.h>
  23
  24 int sd_fill_soc_gpio_info(struct acpi_gpio *gpio, struct device *dev)
  25 {
  26         config_t *config = config_of(dev);
  27
  28         if (!config->sdcard_cd_gpio)
  29                 return -1;
  30
  31         gpio->type = ACPI_GPIO_TYPE_INTERRUPT;
  32         gpio->pull = ACPI_GPIO_PULL_NONE;
  33         gpio->irq.mode = ACPI_IRQ_EDGE_TRIGGERED;
  34         gpio->irq.polarity = ACPI_IRQ_ACTIVE_BOTH;
  35         gpio->irq.shared = ACPI_IRQ_SHARED;
  36         gpio->irq.wake = ACPI_IRQ_WAKE;
  37         gpio->interrupt_debounce_timeout = 10000; /* 100ms */
  38         gpio->pin_count = 1;
  39         gpio->pins[0] = config->sdcard_cd_gpio;
  40
  41         return 0;
  42 }