ramips: mt7621: undo mips-cm probe hack to not wipe out memory regions

[openwrt.git] / target / linux / ramips / patches-4.3 / 0062-remove-cm-memory-regions-cleanup-hack.patch

diff --git a/target/linux/ramips/patches-4.3/0062-remove-cm-memory-regions-cleanup-hack.patch b/target/linux/ramips/patches-4.3/0062-remove-cm-memory-regions-cleanup-hack.patch
new file mode 100644 (file)
index 0000000..9013819
--- /dev/null
+++ b/target/linux/ramips/patches-4.3/0062-remove-cm-memory-regions-cleanup-hack.patch
@@ -0,0 +1,20 @@
+--- a/arch/mips/kernel/mips-cm.c
++++ b/arch/mips/kernel/mips-cm.c
+@@ -238,7 +238,7 @@ int mips_cm_probe(void)
+       write_gcr_base(base_reg);
+ 
+       /* disable CM regions */
+-/*    write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
++      write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
+       write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+       write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
+       write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+@@ -246,7 +246,7 @@ int mips_cm_probe(void)
+       write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+       write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
+       write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+-*/
++
+       /* probe for an L2-only sync region */
+       mips_cm_probe_l2sync();
+