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-rw-r--r--src/arch/arm64/armv8/lib/sysctrl.c10
-rw-r--r--src/arch/arm64/include/armv8/arch/lib_helpers.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/src/arch/arm64/armv8/lib/sysctrl.c b/src/arch/arm64/armv8/lib/sysctrl.c
index deb991f520..2737f56ad2 100644
--- a/src/arch/arm64/armv8/lib/sysctrl.c
+++ b/src/arch/arm64/armv8/lib/sysctrl.c
@@ -522,6 +522,16 @@ void raw_write_mair_current(uint64_t mair)
SWITCH_CASE_WRITE(raw_write_mair,mair);
}
+/* MIDR */
+uint32_t raw_read_midr_el1(void)
+{
+ uint32_t midr_el1;
+
+ __asm__ __volatile__("mrs %0, MIDR_EL1\n\t" : "=r" (midr_el1) : : "memory");
+
+ return midr_el1;
+}
+
/* MPIDR */
uint64_t raw_read_mpidr_el1(void)
{
diff --git a/src/arch/arm64/include/armv8/arch/lib_helpers.h b/src/arch/arm64/include/armv8/arch/lib_helpers.h
index 8c6198f63f..723fc15831 100644
--- a/src/arch/arm64/include/armv8/arch/lib_helpers.h
+++ b/src/arch/arm64/include/armv8/arch/lib_helpers.h
@@ -214,6 +214,7 @@ uint64_t raw_read_mair_el3(void);
void raw_write_mair_el3(uint64_t mair_el3);
uint64_t raw_read_mair_current(void);
void raw_write_mair_current(uint64_t mair);
+uint32_t raw_read_midr_el1(void);
uint64_t raw_read_mpidr_el1(void);
uint32_t raw_read_rmr_el1(void);
void raw_write_rmr_el1(uint32_t rmr_el1);