1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <bootmode.h>
4 #include <boot/coreboot_tables.h>
5 #include <device/device.h>
6
7 #include <southbridge/intel/bd82x6x/pch.h>
8 #include <southbridge/intel/common/gpio.h>
9 #include <ec/quanta/ene_kb3940q/ec.h>
10 #include <types.h>
11 #include <vendorcode/google/chromeos/chromeos.h>
12 #include "ec.h"
13 #include "onboard.h"
14
fill_lb_gpios(struct lb_gpios * gpios)15 void fill_lb_gpios(struct lb_gpios *gpios)
16 {
17 struct lb_gpio chromeos_gpios[] = {
18 /* lid switch value from EC */
19 {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
20
21 /* Power Button - Hardcode Low as power button may still be
22 * pressed when read here.*/
23 {-1, ACTIVE_HIGH, 0, "power"},
24
25 /* Was VGA Option ROM loaded? */
26 /* -1 indicates that this is a pseudo GPIO */
27 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
28 };
29 lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
30 }
31
get_write_protect_state(void)32 int get_write_protect_state(void)
33 {
34 return !get_gpio(WP_GPIO);
35 }
36
get_lid_switch(void)37 int get_lid_switch(void)
38 {
39 return (ec_mem_read(EC_HW_GPI_STATUS) >> EC_GPI_LID_STAT_BIT) & 1;
40 }
41
42 /* FIXME: VBOOT reads this in ENV_SEPARATE_ROMSTAGE. */
get_recovery_mode_switch(void)43 int get_recovery_mode_switch(void)
44 {
45 if (ENV_RAMSTAGE)
46 return (ec_mem_read(EC_CODE_STATE) == EC_COS_EC_RO);
47
48 return 0;
49 }
50
51 static const struct cros_gpio cros_gpios[] = {
52 CROS_GPIO_REC_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
53 CROS_GPIO_WP_AL(WP_GPIO, CROS_GPIO_DEVICE_NAME),
54 };
55 DECLARE_CROS_GPIOS(cros_gpios);
56
get_ec_is_trusted(void)57 int get_ec_is_trusted(void)
58 {
59 /* Do not have a Chrome EC involved in entering recovery mode;
60 Always return trusted. */
61 return 1;
62 }
63