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authorArthur Heymans <arthur@aheymans.xyz>2021-08-11 13:42:40 +0200
committerMartin L Roth <gaumless@gmail.com>2022-11-30 15:19:06 +0000
commit691d58f9996d2ff3820b2c08646e98f16bbde2ee (patch)
tree043767ab2d786e0736961513a2b7d3012a5ef8ca /src/northbridge
parent6cecb0d963dd8df9440487690c11a6da75d8b70f (diff)
nb/intel/sandybridge: Add a chipset devicetree
This only moves CPU configuration to a common place. Other PCI devices can be done in follow-ups. Change-Id: I9c5b6f25b779e28b6719cf70455ff0f1a916ad87 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/56912 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/sandybridge/Kconfig3
-rw-r--r--src/northbridge/intel/sandybridge/chipset.cb18
2 files changed, 21 insertions, 0 deletions
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index 551714a79f..bbe8ac4d69 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -17,6 +17,9 @@ config NORTHBRIDGE_SPECIFIC_OPTIONS
select NO_DDR2
select USE_DDR3
+config CHIPSET_DEVICETREE
+ default "northbridge/intel/sandybridge/chipset.cb"
+
config SANDYBRIDGE_VBOOT_IN_ROMSTAGE
bool
default n
diff --git a/src/northbridge/intel/sandybridge/chipset.cb b/src/northbridge/intel/sandybridge/chipset.cb
new file mode 100644
index 0000000000..ae02a5b927
--- /dev/null
+++ b/src/northbridge/intel/sandybridge/chipset.cb
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+chip northbridge/intel/sandybridge
+ device cpu_cluster 0 on
+ chip cpu/intel/model_206ax
+ # Magic APIC ID to locate this chip
+ device lapic 0 on end
+ device lapic 0xacac off end
+
+ register "acpi_c1" = "1" # ACPI(C1) = MWAIT(C1)
+ register "acpi_c2" = "3" # ACPI(C2) = MWAIT(C3)
+ register "acpi_c3" = "5" # ACPI(C3) = MWAIT(C7)
+ end
+ end
+
+ device domain 0 on
+ end
+end