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authorArthur Heymans <arthur@aheymans.xyz>2022-10-26 08:19:46 +0200
committerWerner Zeh <werner.zeh@siemens.com>2022-10-27 08:41:26 +0000
commit2f5025efeda354cf3180059ade8e35201884bea3 (patch)
tree8d8a19ebbe8d72813bf0bcc7c3d3e3a9a3b21adf /src
parent1ed09082827c9fa12ed81dca02abb2b8d022577f (diff)
Revert "soc/intel/systemagent.c: Fix memory type reporting"
This reverts commit 9c2f3cc9d9b3b3b7cfe1e62a70ea3061ca6c15ac. This broke the smihandler for no clear reason on some platforms. Change-Id: I72da99c019241b627ce8b543937364a53a5fe97b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68879 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/common/block/systemagent/systemagent.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c
index ad60159f06..e74c11856b 100644
--- a/src/soc/intel/common/block/systemagent/systemagent.c
+++ b/src/soc/intel/common/block/systemagent/systemagent.c
@@ -201,8 +201,11 @@ static void sa_add_dram_resources(struct device *dev, int *resource_count)
sa_get_mem_map(dev, &sa_map_values[0]);
- /* top_of_ram -> TOLUD */
- reserved_ram_from_to(dev, index++, top_of_ram, sa_map_values[SA_TOLUD_REG]);
+ /*
+ * top_of_ram -> TOLUD: This contains TSEG which needs to be uncacheable
+ * for proper operation of the smihandler.
+ */
+ mmio_from_to(dev, index++, top_of_ram, sa_map_values[SA_TOLUD_REG]);
/* 4GiB -> TOUUD */
upper_ram_end(dev, index++, sa_map_values[SA_TOUUD_REG]);