From 21707cc29d58237b9311c9e00d176867e0a16fd0 Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Fri, 30 Sep 2016 11:51:04 +0200 Subject: sio/acpi: Add more magic bytes to ENTER/EXIT_CONFIG_MODE ITE super-i/o chips need a fourth byte and have a special register to exit config mode. Change-Id: Ic40873649d567b87d3a937f2bf068649e67715de Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/17286 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/superio/acpi/pnp_config.asl | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'src/superio/acpi') diff --git a/src/superio/acpi/pnp_config.asl b/src/superio/acpi/pnp_config.asl index a1347cf85b..a1da4c69f0 100644 --- a/src/superio/acpi/pnp_config.asl +++ b/src/superio/acpi/pnp_config.asl @@ -24,8 +24,12 @@ * used to enter config mode. * PNP_ENTER_MAGIC_3RD If defined, specifies the third magic byte * used to enter config mode. + * PNP_ENTER_MAGIC_4TH If defined, specifies the fourth magic byte + * used to enter config mode. * PNP_EXIT_MAGIC_1ST If defined, specifies the first magic byte * used to exit config mode. + * PNP_EXIT_SPECIAL_REG If defined, specifies a special register plus + * PNP_EXIT_SPECIAL_VAL a value to be written there to exit config mode. */ @@ -50,6 +54,9 @@ Method (ENTER_CONFIG_MODE, 1) Store (PNP_ENTER_MAGIC_2ND, PNP_ADDR_REG) #ifdef PNP_ENTER_MAGIC_3RD Store (PNP_ENTER_MAGIC_3RD, PNP_ADDR_REG) +#ifdef PNP_ENTER_MAGIC_4TH + Store (PNP_ENTER_MAGIC_4TH, PNP_ADDR_REG) +#endif #endif #endif #endif @@ -66,6 +73,9 @@ Method (EXIT_CONFIG_MODE) { #ifdef PNP_EXIT_MAGIC_1ST Store (PNP_EXIT_MAGIC_1ST, PNP_ADDR_REG) +#endif +#if defined(PNP_EXIT_SPECIAL_REG) && defined(PNP_EXIT_SPECIAL_VAL) + Store (PNP_EXIT_SPECIAL_VAL, PNP_EXIT_SPECIAL_REG) #endif Release (CONFIG_MODE_MUTEX) } -- cgit v1.2.3