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authorAngel Pons <th3fanbus@gmail.com>2020-07-12 23:11:50 +0200
committerAngel Pons <th3fanbus@gmail.com>2020-07-20 13:19:05 +0000
commite8e2e3e00d6a4184419c52c3395c72ad4ba95eac (patch)
treec1c77e905d3d1a1220cc2b01852239ec544ae812
parent2e5e99c48ce374e8ad1d92a77e54c5e22a770f0b (diff)
sb/intel/i82371eb: Declare reset register in FADT
According to Intel Order Number 290562 (PIIX4 datasheet), 0xcf9 is the reset register, and setting bits 1 and 2 will result in a hard reset. Change-Id: Id5ada6a10b2269d51908c6a5fd7745ef6c33a29a Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43385 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
-rw-r--r--src/southbridge/intel/i82371eb/fadt.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/southbridge/intel/i82371eb/fadt.c b/src/southbridge/intel/i82371eb/fadt.c
index fb3b49eb49..5a3326bc8f 100644
--- a/src/southbridge/intel/i82371eb/fadt.c
+++ b/src/southbridge/intel/i82371eb/fadt.c
@@ -103,15 +103,15 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
* 18 FORCE_APIC_CLUSTER_MODEL
* 19 FORCE_APIC_PHYSICAL_DESTINATION_MODE
*/
- fadt->flags = 0xa5;
+ fadt->flags = 0xa5 | ACPI_FADT_RESET_REGISTER;
- fadt->reset_reg.space_id = 0;
- fadt->reset_reg.bit_width = 0;
+ fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
+ fadt->reset_reg.bit_width = 8;
fadt->reset_reg.bit_offset = 0;
- fadt->reset_reg.access_size = 0;
- fadt->reset_reg.addrl = 0x0;
- fadt->reset_reg.addrh = 0x0;
- fadt->reset_value = 0;
+ fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
+ fadt->reset_reg.addrl = 0xcf9;
+ fadt->reset_reg.addrh = 0;
+ fadt->reset_value = 0x06;
fadt->x_pm1a_evt_blk.space_id = 1;
fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;