void fill_lb_gpios(struct lb_gpios *gpios)
{
device_t dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe;
if (!gpio_base)
return;
u32 gp_lvl = inl(gpio_base + GP_LVL);
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
/* Write Protect: GPIO7 */
gpios->gpios[0].port = 7;
gpios->gpios[0].polarity = ACTIVE_LOW;
gpios->gpios[0].value = (gp_lvl >> 7) & 1;
strncpy((char *)gpios->gpios[0].name,"write protect",
GPIO_MAX_NAME_LENGTH);
/* Recovery: Virtual switch */
gpios->gpios[1].port = -1;
gpios->gpios[1].polarity = ACTIVE_HIGH;
gpios->gpios[1].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
/* Developer: Virtual switch */
gpios->gpios[2].port = -1;
gpios->gpios[2].polarity = ACTIVE_HIGH;
gpios->gpios[2].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[2].name,"developer", GPIO_MAX_NAME_LENGTH);
/* Lid Switch: Virtual switch */
gpios->gpios[3].port = -1;
gpios->gpios[3].polarity = ACTIVE_HIGH;
gpios->gpios[3].value = 1; /* Hard-code to open */
strncpy((char *)gpios->gpios[3].name,"lid", GPIO_MAX_NAME_LENGTH);
/* Power Button: Virtual switch */
gpios->gpios[4].port = -1;
gpios->gpios[4].polarity = ACTIVE_HIGH;
gpios->gpios[4].value = 0; /* Hard-code to de-asserted */
strncpy((char *)gpios->gpios[4].name,"power", GPIO_MAX_NAME_LENGTH);
/* Was VGA Option ROM loaded? */
gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[5].polarity = ACTIVE_HIGH;
gpios->gpios[5].value = gfx_get_init_done();
strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);
/* EC is in RW mode when it isn't in recovery mode. */
gpios->gpios[6].port = -1;
gpios->gpios[6].polarity = ACTIVE_HIGH;
gpios->gpios[6].value = !get_recovery_mode_switch();
strncpy((char *)gpios->gpios[6].name,"ec_in_rw", GPIO_MAX_NAME_LENGTH);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
/* Write Protect: GPIO7 */
gpios->gpios[0].port = 7;
gpios->gpios[0].polarity = ACTIVE_LOW;
gpios->gpios[0].value = !get_write_protect_state();
strncpy((char *)gpios->gpios[0].name,"write protect",
GPIO_MAX_NAME_LENGTH);
/* Recovery: Virtual switch */
gpios->gpios[1].port = -1;
gpios->gpios[1].polarity = ACTIVE_HIGH;
gpios->gpios[1].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
/* Developer: Virtual switch */
gpios->gpios[2].port = -1;
gpios->gpios[2].polarity = ACTIVE_HIGH;
gpios->gpios[2].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[2].name,"developer", GPIO_MAX_NAME_LENGTH);
/* Lid Switch: Virtual switch */
gpios->gpios[3].port = -1;
gpios->gpios[3].polarity = ACTIVE_HIGH;
gpios->gpios[3].value = get_lid_switch();
strncpy((char *)gpios->gpios[3].name,"lid", GPIO_MAX_NAME_LENGTH);
/* Power Button: Virtual switch */
gpios->gpios[4].port = -1;
gpios->gpios[4].polarity = ACTIVE_HIGH;
gpios->gpios[4].value = 0; /* Hard-code to de-asserted */
strncpy((char *)gpios->gpios[4].name,"power", GPIO_MAX_NAME_LENGTH);
/* Was VGA Option ROM loaded? */
gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[5].polarity = ACTIVE_HIGH;
gpios->gpios[5].value = gfx_get_init_done();
strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);
/* EC is in RW mode when it isn't in recovery mode. */
gpios->gpios[6].port = -1;
gpios->gpios[6].polarity = ACTIVE_HIGH;
gpios->gpios[6].value = !get_recovery_mode_switch();
strncpy((char *)gpios->gpios[6].name,"ec_in_rw", GPIO_MAX_NAME_LENGTH);
}
/*
* vb2_check_recovery_request looks up different components to identify if there
* is a recovery request and returns appropriate reason code:
* 1. Checks if recovery mode is initiated by EC. If yes, returns
* VB2_RECOVERY_RO_MANUAL.
* 2. Checks if recovery request is present in VBNV and returns the code read
* from it.
* 3. Checks recovery request in handoff for stages post-cbmem.
* 4. For non-CBMEM stages, check if vboot verification is done and look-up
* selected region to identify if vboot_refence library has requested recovery
* path. If yes, return the reason code from shared data.
* 5. If nothing applies, return 0 indicating no recovery request.
*/
int vboot_check_recovery_request(void)
{
int reason = 0;
/* EC-initiated recovery. */
if (get_recovery_mode_switch())
return VB2_RECOVERY_RO_MANUAL;
/* Recovery request in VBNV. */
if ((reason = get_recovery_mode_from_vbnv()) != 0)
return reason;
/*
* Check recovery flag in vboot_handoff for stages post CBMEM coming
* online. Since for some stages there is no way to know if cbmem has
* already come online, try looking up handoff anyways. If it fails,
* flow will fallback to looking up shared data.
*/
if (cbmem_possibly_online() &&
((reason = vboot_handoff_get_recovery_reason()) != 0))
return reason;
/*
* For stages where CBMEM might not be online, identify if vboot
* verification is already complete and no slot was selected
* i.e. recovery path was requested.
*/
if (vboot_possibly_executed() && vb2_logic_executed() &&
!vb2_is_slot_selected())
return vb2_get_recovery_reason_shared_data();
return 0;
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* Write Protect: active low */
gpios->gpios[count].port = WRITE_PROTECT_L;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get(WRITE_PROTECT_L);
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* TODO(adurbin): add lid switch */
/* Power: active low / high depending on board id */
gpios->gpios[count].port = POWER_BUTTON;
gpios->gpios[count].polarity = get_pwr_btn_polarity();
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: virtual GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
count++;
/* EC in RW: active high */
gpios->gpios[count].port = EC_IN_RW;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "EC in RW",
GPIO_MAX_NAME_LENGTH);
count++;
/* Reset: active low (output) */
gpios->gpios[count].port = AP_SYS_RESET_L;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "reset",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{58, ACTIVE_HIGH, 0, "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
{-1, ACTIVE_HIGH, 0, "power"},
{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO(R1), ACTIVE_LOW, gpio_get(GPIO(R1)), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{GPIO(R4), ACTIVE_HIGH, -1, "lid"},
{GPIO(Q0), ACTIVE_LOW, -1, "power"},
{GPIO(U4), ACTIVE_HIGH, -1, "EC in RW"},
{GPIO(I5), ACTIVE_LOW, -1, "reset"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO_WP.id, ACTIVE_LOW,
!get_write_protect_state(), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
{EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
{CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{-1, ACTIVE_HIGH, get_write_protect_state(), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
{-1, ACTIVE_HIGH, 0, "power"},
{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
{GPIO_EC_IN_RW, ACTIVE_HIGH,
gpio_get(GPIO_EC_IN_RW), "EC in RW"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{WRITE_PROTECT_L, ACTIVE_LOW,
gpio_get(WRITE_PROTECT_L), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{POWER_BUTTON, ACTIVE_LOW, -1, "power"},
{-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"},
{EC_IN_RW, ACTIVE_HIGH, -1, "EC in RW"},
{AP_SYS_RESET_L, ACTIVE_LOW, -1, "reset"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO_SPI_WP, ACTIVE_HIGH,
get_gpio(GPIO_SPI_WP), "write protect"},
{GPIO_REC_MODE, ACTIVE_LOW,
get_recovery_mode_switch(), "recovery"},
{-1, ACTIVE_HIGH, 1, "lid"},
{-1, ACTIVE_HIGH, 0, "power"},
{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
device_t dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe;
//u16 gen_pmcon_1 = pci_read_config32(dev, GEN_PMCON_1);
if (!gpio_base)
return;
u32 gp_lvl2 = inl(gpio_base + 0x38);
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
/* Write Protect: GPIO57 = PCH_SPI_WP_D */
gpios->gpios[0].port = 57;
gpios->gpios[0].polarity = ACTIVE_HIGH;
gpios->gpios[0].value = (gp_lvl2 >> (57 - 32)) & 1;
strncpy((char *)gpios->gpios[0].name,"write protect",
GPIO_MAX_NAME_LENGTH);
/* Recovery: the "switch" comes from the EC */
gpios->gpios[1].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[1].polarity = ACTIVE_HIGH;
gpios->gpios[1].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
/* Lid: the "switch" comes from the EC */
gpios->gpios[2].port = -1;
gpios->gpios[2].polarity = ACTIVE_HIGH;
gpios->gpios[2].value = get_lid_switch();
strncpy((char *)gpios->gpios[2].name,"lid", GPIO_MAX_NAME_LENGTH);
/* Power Button: hard-coded as not pressed; we'll detect later presses
* via SMI. */
gpios->gpios[3].port = -1;
gpios->gpios[3].polarity = ACTIVE_HIGH;
gpios->gpios[3].value = 0;
strncpy((char *)gpios->gpios[3].name,"power", GPIO_MAX_NAME_LENGTH);
/* Developer: a tricky case on Link, there is no switch */
gpios->gpios[4].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[4].polarity = ACTIVE_HIGH;
gpios->gpios[4].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[4].name,"developer", GPIO_MAX_NAME_LENGTH);
/* Did we load the VGA Option ROM? */
gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[5].polarity = ACTIVE_HIGH;
gpios->gpios[5].value = oprom_is_loaded;
strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO_WP.raw, ACTIVE_LOW, gpio_get(GPIO_WP), "write protect"},
/* Note for early development, we want to support both servo
* and pushkey recovery buttons in firmware boot stages. */
{GPIO_RECOVERY_PUSHKEY.raw, ACTIVE_LOW,
!get_recovery_mode_switch(), "recovery"},
{GPIO_POWER.raw, ACTIVE_LOW, -1, "power"},
{-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"},
{GPIO_RESET.raw, ACTIVE_HIGH, -1, "reset"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO_WP.raw, ACTIVE_HIGH, get_write_protect_state(),
"write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{GPIO_BACKLIGHT.raw, ACTIVE_HIGH, -1, "backlight"},
{GPIO_EC_IN_RW.raw, ACTIVE_HIGH, -1, "EC in RW"},
{GPIO_EC_IRQ.raw, ACTIVE_LOW, -1, "EC interrupt"},
{GPIO_RESET.raw, ACTIVE_HIGH, -1, "reset"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
/*
* This is called in multiple places and has to detect
* recovery mode triggered from the EC and via shared
* recovery reason set with crossystem.
*
* If shared recovery reason is set:
* - before VbInit then get_recovery_mode_from_vbnv() is true
* - after VbInit then vboot_enable_recovery() is true
*
* Otherwise the mainboard handler for get_recovery_mode_switch()
* will detect recovery mode initiated by the EC.
*/
int recovery_mode_enabled(void)
{
if (get_recovery_mode_switch())
return 1;
#if CONFIG_CHROMEOS
if (get_recovery_mode_from_vbnv())
return 1;
#endif
#if CONFIG_VBOOT_VERIFY_FIRMWARE
if (vboot_enable_recovery())
return 1;
#endif
return 0;
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* Write Protect: active low */
gpios->gpios[count].port = EXYNOS5_GPX3;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get_value(GPIO_X30); // WP_GPIO
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active low */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* Lid: active high */
gpios->gpios[count].port = EXYNOS5_GPX3;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = gpio_get_value(GPIO_X34); // LID_GPIO
strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
count++;
/* Power: virtual GPIO active low */
gpios->gpios[count].port = EXYNOS5_GPX1;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value =
gpio_get_value(GPIO_X12); // POWER_GPIO
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: virtual GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
device_t dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
u16 gen_pmcon_1 = pci_read_config32(dev, GEN_PMCON_1);
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
/* Write Protect: GPIO68 = CHP3_SPI_WP */
gpios->gpios[0].port = GPIO_SPI_WP;
gpios->gpios[0].polarity = ACTIVE_HIGH;
gpios->gpios[0].value =
(pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x1f, 2)),
SATA_SP) >> FLAG_SPI_WP) & 1;
strncpy((char *)gpios->gpios[0].name,"write protect",
GPIO_MAX_NAME_LENGTH);
/* Recovery: GPIO42 = CHP3_REC_MODE# */
gpios->gpios[1].port = GPIO_REC_MODE;
gpios->gpios[1].polarity = ACTIVE_LOW;
gpios->gpios[1].value = !get_recovery_mode_switch();
strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
/* Developer: GPIO17 = KBC3_DVP_MODE */
gpios->gpios[2].port = GPIO_DEV_MODE;
gpios->gpios[2].polarity = ACTIVE_HIGH;
gpios->gpios[2].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[2].name,"developer", GPIO_MAX_NAME_LENGTH);
/* Hard code the lid switch GPIO to open. */
gpios->gpios[3].port = 100;
gpios->gpios[3].polarity = ACTIVE_HIGH;
gpios->gpios[3].value = 1;
strncpy((char *)gpios->gpios[3].name,"lid", GPIO_MAX_NAME_LENGTH);
/* Power Button */
gpios->gpios[4].port = 101;
gpios->gpios[4].polarity = ACTIVE_LOW;
gpios->gpios[4].value = (gen_pmcon_1 >> 9) & 1;
strncpy((char *)gpios->gpios[4].name,"power", GPIO_MAX_NAME_LENGTH);
/* Did we load the VGA Option ROM? */
gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
gpios->gpios[5].polarity = ACTIVE_HIGH;
gpios->gpios[5].value = oprom_is_loaded;
strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio *gpio;
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
gpio = gpios->gpios;
fill_lb_gpio(gpio++, GPIO_SPI_WP, ACTIVE_HIGH, "write protect", 0);
fill_lb_gpio(gpio++, GPIO_REC_MODE, ACTIVE_LOW, "recovery",
get_recovery_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "developer",
get_developer_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "lid", 1);
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "power", 0);
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "oprom", gfx_get_init_done());
}
int recovery_mode_enabled(void)
{
/*
* This is called in multiple places and has to detect
* recovery mode triggered from the EC and via shared
* recovery reason set with crossystem.
*
* If shared recovery reason is set:
* - before VbInit then get_recovery_mode_from_vbnv() is true
* - after VbInit then vboot_enable_recovery() is true
*
* Otherwise the mainboard handler for get_recovery_mode_switch()
* will detect recovery mode initiated by the EC.
*/
return get_recovery_mode_switch() || get_recovery_mode_from_vbnv() ||
vboot_enable_recovery();
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio *gpio;
gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
gpios->count = GPIO_COUNT;
gpio = gpios->gpios;
fill_lb_gpio(gpio++, 58, ACTIVE_HIGH, "write protect", 0);
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "recovery",
get_recovery_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "developer",
get_developer_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "lid",
get_lid_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "power", 0);
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "oprom", oprom_is_loaded);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* TBD([email protected]): Any analogs for these on Foster-FFD? */
/* Write Protect: active low */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = get_write_protect_state();
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* TODO: Power: active low / high depending on board id */
gpios->gpios[count].port = GPIO(X5);
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* TODO: Reset: active low (output) */
gpios->gpios[count].port = GPIO(I5);
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "reset",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
/* Write Protect: GPIO48 */
{48, ACTIVE_LOW, !get_write_protect_state(), "write protect"},
/* Recovery: GPIO22 */
{22, ACTIVE_LOW, !get_recovery_mode_switch(), "recovery"},
/* Hard code the lid switch GPIO to open. */
{-1, ACTIVE_HIGH, 1, "lid"},
/* Power Button */
{-1, ACTIVE_HIGH, 0, "power"},
/* Did we load the VGA option ROM? */
{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio *start_gpio = gpios->gpios;
struct lb_gpio *gpio = start_gpio;
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "write protect",
get_write_protect_state());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "recovery",
get_recovery_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "developer",
get_developer_mode_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "lid",
get_lid_switch());
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "power", 0);
fill_lb_gpio(gpio++, -1, ACTIVE_HIGH, "oprom", gfx_get_init_done());
fill_lb_gpio(gpio++, GPIO_EC_IN_RW, ACTIVE_HIGH, "EC in RW",
gpio_get(GPIO_EC_IN_RW));
gpios->count = gpio - start_gpio;
gpios->size = sizeof(*gpios) + (gpios->count * sizeof(*gpio));
}
/*
* The Stout EC needs to be reset to RW mode. It is important that
* the RTC_PWR_STS is not set until ramstage EC init.
*/
static void early_ec_init(void)
{
u8 ec_status = ec_read(EC_STATUS_REG);
int rec_mode = get_recovery_mode_switch();
if (((ec_status & 0x3) == EC_IN_RO_MODE) ||
((ec_status & 0x3) == EC_IN_RECOVERY_MODE)) {
printk(BIOS_DEBUG, "EC Cold Boot Detected\n");
if (!rec_mode) {
/*
* Tell EC to exit RO mode
*/
printk(BIOS_DEBUG, "EC will exit RO mode and boot normally\n");
ec_write_cmd(EC_CMD_EXIT_BOOT_BLOCK);
die("wait for ec to reset");
}
} else {
printk(BIOS_DEBUG, "EC Warm Boot Detected\n");
ec_write_cmd(EC_CMD_WARM_RESET);
}
}
void acpi_create_gnvs(global_nvs_t *gnvs)
{
/* Disable USB ports in S3 by default */
gnvs->s3u0 = 0;
gnvs->s3u1 = 0;
/* Disable USB ports in S5 by default */
gnvs->s5u0 = 0;
gnvs->s5u1 = 0;
#if CONFIG_CHROMEOS
gnvs->chromeos.vbt2 = get_recovery_mode_switch() ?
ACTIVE_ECFW_RO : ACTIVE_ECFW_RW;
#endif
acpi_update_thermal_table(gnvs);
// the lid is open by default.
gnvs->lids = 1;
/* XHCI Mode */
gnvs->xhci = XHCI_MODE;
}
static void vboot_invoke_wrapper(struct vboot_handoff *vboot_handoff)
{
VbCommonParams cparams;
VbSelectFirmwareParams fparams;
struct vboot_context context;
uint32_t *iflags;
vboot_handoff->selected_firmware = VB_SELECT_FIRMWARE_READONLY;
memset(&cparams, 0, sizeof(cparams));
memset(&fparams, 0, sizeof(fparams));
memset(&context, 0, sizeof(context));
iflags = &vboot_handoff->init_params.flags;
if (get_developer_mode_switch())
*iflags |= VB_INIT_FLAG_DEV_SWITCH_ON;
if (get_recovery_mode_switch())
*iflags |= VB_INIT_FLAG_REC_BUTTON_PRESSED;
if (get_write_protect_state())
*iflags |= VB_INIT_FLAG_WP_ENABLED;
if (CONFIG_VIRTUAL_DEV_SWITCH)
*iflags |= VB_INIT_FLAG_VIRTUAL_DEV_SWITCH;
if (CONFIG_EC_SOFTWARE_SYNC) {
*iflags |= VB_INIT_FLAG_EC_SOFTWARE_SYNC;
*iflags |= VB_INIT_FLAG_VIRTUAL_REC_SWITCH;
}
context.handoff = vboot_handoff;
context.cparams = &cparams;
context.fparams = &fparams;
cparams.gbb_size = find_fmap_entry("GBB", &cparams.gbb_data);
cparams.shared_data_blob = &vboot_handoff->shared_data[0];
cparams.shared_data_size = VB_SHARED_DATA_MIN_SIZE;
cparams.caller_context = &context;
fparams.verification_size_A =
find_fmap_entry("VBLOCK_A", &fparams.verification_block_A);
fparams.verification_size_B =
find_fmap_entry("VBLOCK_B", &fparams.verification_block_B);
context.fw_a_size =
find_fmap_entry("FW_MAIN_A", (void **)&context.fw_a);
context.fw_b_size =
find_fmap_entry("FW_MAIN_B", (void **)&context.fw_b);
/* Check all fmap entries. */
if (context.fw_a == NULL || context.fw_b == NULL ||
fparams.verification_block_A == NULL ||
fparams.verification_block_B == NULL ||
cparams.gbb_data == NULL) {
printk(BIOS_DEBUG, "Not all fmap entries found for vboot.\n");
return;
}
/* Initialize callbacks. */
context.read_vbnv = &read_vbnv;
context.save_vbnv = &save_vbnv;
context.tis_init = &tis_init;
context.tis_open = &tis_open;
context.tis_close = &tis_close;
context.tis_sendrecv = &tis_sendrecv;
context.log_msg = &log_msg;
context.fatal_error = &fatal_error;
vboot_run_stub(&context);
}
/**
* Verify and select the firmware in the RW image
*
* TODO: Avoid loading a stage twice (once in hash_body & again in load_stage).
* when per-stage verification is ready.
*/
void verstage_main(void)
{
struct vb2_context ctx;
struct region_device fw_main;
int rv;
timestamp_add_now(TS_START_VBOOT);
/* Set up context and work buffer */
vb2_init_work_context(&ctx);
/* Read nvdata from a non-volatile storage. */
read_vbnv(ctx.nvdata);
/* Set S3 resume flag if vboot should behave differently when selecting
* which slot to boot. This is only relevant to vboot if the platform
* does verification of memory init and thus must ensure it resumes with
* the same slot that it booted from. */
if (IS_ENABLED(CONFIG_RESUME_PATH_SAME_AS_BOOT) &&
IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK) &&
vboot_platform_is_resuming())
ctx.flags |= VB2_CONTEXT_S3_RESUME;
/* Read secdata from TPM. Initialize TPM if secdata not found. We don't
* check the return value here because vb2api_fw_phase1 will catch
* invalid secdata and tell us what to do (=reboot). */
timestamp_add_now(TS_START_TPMINIT);
antirollback_read_space_firmware(&ctx);
timestamp_add_now(TS_END_TPMINIT);
if (!IS_ENABLED(CONFIG_VIRTUAL_DEV_SWITCH) &&
get_developer_mode_switch())
ctx.flags |= VB2_CONTEXT_FORCE_DEVELOPER_MODE;
if (get_recovery_mode_switch()) {
ctx.flags |= VB2_CONTEXT_FORCE_RECOVERY_MODE;
if (IS_ENABLED(CONFIG_VBOOT_DISABLE_DEV_ON_RECOVERY))
ctx.flags |= VB2_DISABLE_DEVELOPER_MODE;
}
if (IS_ENABLED(CONFIG_WIPEOUT_SUPPORTED) && get_wipeout_mode_switch())
ctx.flags |= VB2_CONTEXT_FORCE_WIPEOUT_MODE;
if (IS_ENABLED(CONFIG_LID_SWITCH) && !get_lid_switch())
ctx.flags |= VB2_CONTEXT_NOFAIL_BOOT;
/* Do early init (set up secdata and NVRAM, load GBB) */
printk(BIOS_INFO, "Phase 1\n");
rv = vb2api_fw_phase1(&ctx);
if (rv) {
/*
* If vb2api_fw_phase1 fails, check for return value.
* If it is set to VB2_ERROR_API_PHASE1_RECOVERY, then continue
* into recovery mode.
* For any other error code, save context if needed and reboot.
*/
if (rv == VB2_ERROR_API_PHASE1_RECOVERY) {
printk(BIOS_INFO, "Recovery requested (%x)\n", rv);
save_if_needed(&ctx);
extend_pcrs(&ctx); /* ignore failures */
timestamp_add_now(TS_END_VBOOT);
return;
}
printk(BIOS_INFO, "Reboot reqested (%x)\n", rv);
save_if_needed(&ctx);
vboot_reboot();
}
/* Determine which firmware slot to boot (based on NVRAM) */
printk(BIOS_INFO, "Phase 2\n");
rv = vb2api_fw_phase2(&ctx);
if (rv) {
printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
save_if_needed(&ctx);
vboot_reboot();
}
/* Try that slot (verify its keyblock and preamble) */
printk(BIOS_INFO, "Phase 3\n");
timestamp_add_now(TS_START_VERIFY_SLOT);
rv = vb2api_fw_phase3(&ctx);
timestamp_add_now(TS_END_VERIFY_SLOT);
if (rv) {
printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
save_if_needed(&ctx);
vboot_reboot();
}
printk(BIOS_INFO, "Phase 4\n");
rv = locate_firmware(&ctx, &fw_main);
if (rv)
die("Failed to read FMAP to locate firmware");
rv = hash_body(&ctx, &fw_main);
save_if_needed(&ctx);
if (rv) {
printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
vboot_reboot();
}
rv = extend_pcrs(&ctx);
if (rv) {
printk(BIOS_WARNING, "Failed to extend TPM PCRs (%#x)\n", rv);
vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_U_ERROR, rv);
save_if_needed(&ctx);
vboot_reboot();
}
/* Lock TPM */
rv = antirollback_lock_space_firmware();
if (rv) {
printk(BIOS_INFO, "Failed to lock TPM (%x)\n", rv);
vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_L_ERROR, 0);
save_if_needed(&ctx);
vboot_reboot();
}
/* Lock rec hash space if available. */
if (IS_ENABLED(CONFIG_VBOOT_HAS_REC_HASH_SPACE)) {
rv = antirollback_lock_space_rec_hash();
if (rv) {
printk(BIOS_INFO, "Failed to lock rec hash space(%x)\n",
rv);
vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_REC_HASH_L_ERROR,
0);
save_if_needed(&ctx);
vboot_reboot();
}
}
printk(BIOS_INFO, "Slot %c is selected\n", is_slot_a(&ctx) ? 'A' : 'B');
vb2_set_selected_region(region_device_region(&fw_main));
timestamp_add_now(TS_END_VBOOT);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* Write Protect: active low */
gpios->gpios[count].port = GPIO(R1);
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get(GPIO(R1));
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* Lid: active high */
gpios->gpios[count].port = GPIO(R4);
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
count++;
/* Power: active low */
gpios->gpios[count].port = GPIO(Q0);
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: virtual GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
count++;
/* EC in RW: active high */
gpios->gpios[count].port = GPIO(U4);
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "EC in RW",
GPIO_MAX_NAME_LENGTH);
count++;
/* Reset: active low (output) */
gpios->gpios[count].port = GPIO(I5);
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "reset",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* Write Protect: active low */
gpios->gpios[count].port = GPIO_WP.raw;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get(GPIO_WP);
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active low */
gpios->gpios[count].port = GPIO_RECOVERY.raw;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* Lid: active high */
gpios->gpios[count].port = GPIO_LID.raw;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
count++;
/* Power:GPIO active high */
gpios->gpios[count].port = GPIO_POWER.raw;
gpios->gpios[count].polarity = board_id() > 1 ? ACTIVE_LOW :
ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
count++;
/* EC in RW: GPIO active high */
gpios->gpios[count].port = GPIO_ECINRW.raw;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "EC in RW",
GPIO_MAX_NAME_LENGTH);
count++;
/* Reset: GPIO active high (output) */
gpios->gpios[count].port = GPIO_RESET.raw;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "reset",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
int count = 0;
/* Write protect : active low */
gpios->gpios[count].port = WRITE_PROTECT;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get(WRITE_PROTECT);
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* Lid: active high */
gpios->gpios[count].port = LID;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
count++;
/* Power: active high */
gpios->gpios[count].port = POWER_BUTTON;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
/* Developer: virtual GPIO active high */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_developer_mode_switch();
strncpy((char *)gpios->gpios[count].name, "developer",
GPIO_MAX_NAME_LENGTH);
count++;
/* EC in RW: active high */
gpios->gpios[count].port = EC_IN_RW;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "EC in RW",
GPIO_MAX_NAME_LENGTH);
count++;
/* EC interrupt: GPIO active low */
gpios->gpios[count].port = EC_IRQ;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = -1;
strncpy((char *)gpios->gpios[count].name, "EC interrupt",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
