src/mainboard/google/poppy/chromeos.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2016 Google Inc.
   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.
  14  */
  15
  16 #include <arch/acpi.h>
  17 #include <baseboard/variants.h>
  18 #include <gpio.h>
  19 #include <rules.h>
  20 #include <soc/gpe.h>
  21 #include <soc/gpio.h>
  22 #include <tpm.h>
  23 #include <vendorcode/google/chromeos/chromeos.h>
  24
  25 #include <variant/gpio.h>
  26
  27 #if ENV_RAMSTAGE
  28 #include <boot/coreboot_tables.h>
  29
  30 void fill_lb_gpios(struct lb_gpios *gpios)
  31 {
  32         struct lb_gpio chromeos_gpios[] = {
  33                 {-1, ACTIVE_HIGH, get_write_protect_state(), "write protect"},
  34                 {-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
  35                 {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
  36                 {-1, ACTIVE_HIGH, 0, "power"},
  37                 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
  38                 {GPIO_EC_IN_RW, ACTIVE_HIGH, gpio_get(GPIO_EC_IN_RW),
  39                  "EC in RW"},
  40         };
  41         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  42 }
  43 #endif /* ENV_RAMSTAGE */
  44
  45 int get_write_protect_state(void)
  46 {
  47         /* Read PCH_WP GPIO. */
  48         return gpio_get(GPIO_PCH_WP);
  49 }
  50
  51 void mainboard_chromeos_acpi_generate(void)
  52 {
  53         const struct cros_gpio *gpios;
  54         size_t num;
  55
  56         gpios = variant_cros_gpios(&num);
  57         chromeos_acpi_gpio_generate(gpios, num);
  58 }
  59
  60 int tis_plat_irq_status(void)
  61 {
  62         return acpi_get_gpe(GPE0_DW2_00);
  63 }