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-rw-r--r--arch/mips/include/asm/mips-cm.h4
-rw-r--r--arch/mips/kernel/smp-cps.c5
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index c2930a75b7e4..1e782275850a 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -240,6 +240,10 @@ GCR_ACCESSOR_RO(32, 0x0d0, gic_status)
GCR_ACCESSOR_RO(32, 0x0f0, cpc_status)
#define CM_GCR_CPC_STATUS_EX BIT(0)
+/* GCR_ACCESS - Controls core/IOCU access to GCRs */
+GCR_ACCESSOR_RW(32, 0x120, access_cm3)
+#define CM_GCR_ACCESS_ACCESSEN GENMASK(7, 0)
+
/* GCR_L2_CONFIG - Indicates L2 cache configuration when Config5.L2C=1 */
GCR_ACCESSOR_RW(32, 0x130, l2_config)
#define CM_GCR_L2_CONFIG_BYPASS BIT(20)
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 9cc087dd1c19..395622c37325 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -317,7 +317,10 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
write_gcr_co_reset_ext_base(CM_GCR_Cx_RESET_EXT_BASE_UEB);
/* Ensure the core can access the GCRs */
- set_gcr_access(1 << core);
+ if (mips_cm_revision() < CM_REV_CM3)
+ set_gcr_access(1 << core);
+ else
+ set_gcr_access_cm3(1 << core);
if (mips_cpc_present()) {
/* Reset the core */