From c622dc5e822cb849e36386a28efcb88241533a54 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Fri, 30 Mar 2018 15:14:17 -0500 Subject: superio/ite/it8720f: Implement power control Program the Super I/O to turn the machine on or restore its power state when AC power is restored. Based on code from src/superio/nuvoton/nct5572d/superio.c. Change-Id: I1f3432f43b0784c3696bf1d7233b83d3a203af20 Signed-off-by: Samuel Holland Reviewed-on: https://review.coreboot.org/25463 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/superio/ite/it8720f/superio.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/superio/ite') diff --git a/src/superio/ite/it8720f/superio.c b/src/superio/ite/it8720f/superio.c index 912da3819a..be44e39b17 100644 --- a/src/superio/ite/it8720f/superio.c +++ b/src/superio/ite/it8720f/superio.c @@ -18,12 +18,35 @@ #include #include #include +#include #include #include +#include #include "chip.h" #include "it8720f.h" +#define MAINBOARD_POWER_OFF 0 +#define MAINBOARD_POWER_ON 1 +#define MAINBOARD_POWER_KEEP 2 + +static void power_control_init(struct device *dev) +{ + int power_on = MAINBOARD_POWER_OFF; + u8 addr, value; + + get_option(&power_on, "power_on_after_fail"); + if (power_on == MAINBOARD_POWER_OFF) + return; + pnp_enter_conf_mode(dev); + pnp_set_logical_device(dev); + addr = power_on == MAINBOARD_POWER_KEEP ? 0xf2 : 0xf4; + value = pnp_read_config(dev, addr); + value |= BIT(5); + pnp_write_config(dev, addr, value); + pnp_exit_conf_mode(dev); +} + static void it8720f_init(struct device *dev) { const struct superio_ite_it8720f_config *conf; @@ -39,6 +62,7 @@ static void it8720f_init(struct device *dev) if (!conf || !res) break; ite_ec_init(res->base, &conf->ec); + power_control_init(dev); break; case IT8720F_KBCK: pc_keyboard_init(NO_AUX_DEVICE); -- cgit v1.2.3