diff options
Diffstat (limited to 'board/primus/ps2.c')
| -rw-r--r-- | board/primus/ps2.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/board/primus/ps2.c b/board/primus/ps2.c index 2a605b37e5..5ccc457b8e 100644 --- a/board/primus/ps2.c +++ b/board/primus/ps2.c @@ -4,11 +4,29 @@ */ #include "hooks.h" +#include "i8042_protocol.h" #include "keyboard_8042.h" #include "ps2_chip.h" void send_aux_data_to_device(uint8_t data) { + if (data == I8042_CMD_RESET_DIS) { + /* + * EC will receive I8042_CMD_RESET_DIS when warm reboot, + * set GPIO62/ GPIO63 back to GPIO and pull low. + */ + gpio_set_flags(GPIO_EC_PS2_SCL_TPAD, GPIO_ODR_LOW); + gpio_set_flags(GPIO_EC_PS2_SDA_TPAD, GPIO_ODR_LOW); + gpio_set_alternate_function(GPIO_PORT_6, + BIT(2) | BIT(3), GPIO_ALT_FUNC_NONE); + } else if (data == I8042_CMD_GETID) { + /* + * In normal boot, when we get I8042_CMD_GETID command, + * enable the PS2 module. + */ + gpio_set_alternate_function(GPIO_PORT_6, + BIT(2) | BIT(3), GPIO_ALT_FUNC_DEFAULT); + } ps2_transmit_byte(NPCX_PS2_CH1, data); } |