diff options
Diffstat (limited to 'chip/it83xx')
| -rw-r--r-- | chip/it83xx/gpio.c | 8 | ||||
| -rw-r--r-- | chip/it83xx/registers.h | 7 |
2 files changed, 14 insertions, 1 deletions
diff --git a/chip/it83xx/gpio.c b/chip/it83xx/gpio.c index 134d5b3472..8cd80a1d94 100644 --- a/chip/it83xx/gpio.c +++ b/chip/it83xx/gpio.c @@ -464,6 +464,14 @@ void gpio_pre_init(void) } #endif +#ifndef CONFIG_USB + /* + * Disable default pull-down of USB controller (GPH5 and GPH6) if we + * don't use this module. + */ + IT83XX_USB_P0MCR &= ~USB_DP_DM_PULL_DOWN_EN; +#endif + for (i = 0; i < GPIO_COUNT; i++, g++) { flags = g->flags; diff --git a/chip/it83xx/registers.h b/chip/it83xx/registers.h index 4b6a702d15..e66aee6a22 100644 --- a/chip/it83xx/registers.h +++ b/chip/it83xx/registers.h @@ -1300,6 +1300,12 @@ enum usbpd_port { /* PUT_OOB data byte 0 - 79 */ #define IT83XX_ESPI_QUEUE_PUT_OOB(i) REG8(IT83XX_ESPI_QUEUE_BASE+0x80+(i)) +/* USB Controller */ +#define IT83XX_USB_BASE 0x00F02F00 + +#define IT83XX_USB_P0MCR REG8(IT83XX_USB_BASE+0xE4) +#define USB_DP_DM_PULL_DOWN_EN (1 << 4) + /* Wake pin definitions, defined at board-level */ extern const enum gpio_signal hibernate_wake_pins[]; extern const int hibernate_wake_pins_used; @@ -1313,6 +1319,5 @@ extern const int hibernate_wake_pins_used; #define IT83XX_DBGR_BASE 0x00F02500 #define IT83XX_OW_BASE 0x00F02A00 #define IT83XX_CEC_BASE 0x00F02E00 -#define IT83XX_USB_BASE 0x00F02F00 #endif /* __CROS_EC_REGISTERS_H */ |