superio/ite: Add function to disable PME# output
A function to disable the PME# output was added. This is required to
set up the SuperIO on the "HP Pro 3500 Series" mb.
Change-Id: I94f023ba6eb24b5fb1c5e0b30eb65738f50a87eb
Signed-off-by: Joel Linn <jl@conductive.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81589
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
diff --git a/src/superio/ite/common/early_serial.c b/src/superio/ite/common/early_serial.c
index b8a6ba5..ec218a6 100644
--- a/src/superio/ite/common/early_serial.c
+++ b/src/superio/ite/common/early_serial.c
@@ -15,6 +15,7 @@
#define ITE_CONFIG_REG_WATCHDOG 0x72 /* watchdog config */
#define ITE_CONFIG_REG_WDT_TIMEOUT_LSB 0x73 /* watchdog timeout (LSB) */
#define ITE_CONFIG_REG_WDT_TIMEOUT_MSB 0x74 /* watchdog timeout (MSB) */
+#define ITE_CONFIG_REG_APC_PME_CTL1 0xf2 /* APC_PME Control 1 */
#define ITE_CONFIG_REG_APC_PME_CTL2 0xf4 /* APC_PME Control 2 */
/* Helper procedure */
@@ -143,6 +144,21 @@
}
/*
+ * Disable PME# Output
+ * pass EC_DEV
+ */
+void ite_disable_pme_out(pnp_devfn_t dev)
+{
+ u8 tmp;
+ pnp_enter_conf_state(dev);
+ pnp_set_logical_device(dev);
+ tmp = pnp_read_config(dev, ITE_CONFIG_REG_APC_PME_CTL1);
+ tmp |= 0x40;
+ pnp_write_config(dev, ITE_CONFIG_REG_APC_PME_CTL1, tmp);
+ pnp_exit_conf_state(dev);
+}
+
+/*
* Set AC resume to be up to the Southbridge
* pass EC_DEV
*/
diff --git a/src/superio/ite/common/ite.h b/src/superio/ite/common/ite.h
index 1a147be..8a1ab58 100644
--- a/src/superio/ite/common/ite.h
+++ b/src/superio/ite/common/ite.h
@@ -18,6 +18,7 @@
void ite_set_3vsbsw(pnp_devfn_t dev, bool enable);
void ite_delay_pwrgd3(pnp_devfn_t dev);
void ite_kill_watchdog(pnp_devfn_t dev);
+void ite_disable_pme_out(pnp_devfn_t dev);
void ite_ac_resume_southbridge(pnp_devfn_t dev);
/* Alias for backwards compatibility */