[coreboot-gerrit] Change in coreboot[master]: nb/intel/gm45/memmap.c: Use `postcar_enable_tseg_cache`

[Angel Pons (Code Review)]

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/45915 )

Change subject: nb/intel/gm45/memmap.c: Use `postcar_enable_tseg_cache`
......................................................................

nb/intel/gm45/memmap.c: Use `postcar_enable_tseg_cache`

Also correct comments and clean up cosmetics of this function.

Change-Id: I5f559d63bec15351b42b29ad97574ceb2c995039
Signed-off-by: Angel Pons 
---
M src/northbridge/intel/gm45/memmap.c
1 file changed, 4 insertions(+), 7 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/15/45915/1

diff --git a/src/northbridge/intel/gm45/memmap.c b/src/northbridge/intel/gm45/memmap.c
index 4fe3998..da5e0ed 100644
--- a/src/northbridge/intel/gm45/memmap.c
+++ b/src/northbridge/intel/gm45/memmap.c
@@ -119,13 +119,10 @@
 {
    uintptr_t top_of_ram;

-	/* Cache 8 MiB region below the top of RAM and 2 MiB above top of
-	 * RAM to cover both cbmem as the TSEG region.
-	 */
+	/* Cache 8 MiB region below the top of RAM to cover CBMEM */
    top_of_ram = (uintptr_t)cbmem_top();
-	postcar_frame_add_mtrr(pcf, top_of_ram - 8*MiB, 8*MiB,
-			       MTRR_TYPE_WRBACK);
-	postcar_frame_add_mtrr(pcf, northbridge_get_tseg_base(),
-			       northbridge_get_tseg_size(), MTRR_TYPE_WRBACK);
+	postcar_frame_add_mtrr(pcf, top_of_ram - 8 * MiB, 8 * MiB, MTRR_TYPE_WRBACK);

+	/* Cache the TSEG region */
+	postcar_enable_tseg_cache(pcf);
 }