2 files changed, 16 insertions, 0 deletions
diff --git a/lib/intel_io.h b/lib/intel_io.h
index 78a6f4de..8293353c 100644
--- a/lib/intel_io.h
+++ b/lib/intel_io.h
@@ -50,6 +50,8 @@ uint32_t intel_dpio_reg_read(uint32_t reg, int phy);
 void intel_dpio_reg_write(uint32_t reg, uint32_t val, int phy);
 uint32_t intel_flisdsi_reg_read(uint32_t reg);
 void intel_flisdsi_reg_write(uint32_t reg, uint32_t val);
+uint32_t intel_iosf_sb_read(uint32_t port, uint32_t reg);
+void intel_iosf_sb_write(uint32_t port, uint32_t reg, uint32_t val);
 
 int intel_punit_read(uint8_t addr, uint32_t *val);
 int intel_punit_write(uint8_t addr, uint32_t val);
diff --git a/lib/intel_iosf.c b/lib/intel_iosf.c
index ca206389..2f1ef90c 100644
--- a/lib/intel_iosf.c
+++ b/lib/intel_iosf.c
@@ -173,3 +173,17 @@ void intel_flisdsi_reg_write(uint32_t reg, uint32_t val)
 {
 	vlv_sideband_rw(IOSF_PORT_FLISDSI, SB_CRWRDA_NP, reg, &val);
 }
+
+uint32_t intel_iosf_sb_read(uint32_t port, uint32_t reg)
+{
+	uint32_t val;
+
+	vlv_sideband_rw(port, SB_CRRDDA_NP, reg, &val);
+
+	return val;
+}
+
+void intel_iosf_sb_write(uint32_t port, uint32_t reg, uint32_t val)
+{
+	vlv_sideband_rw(port, SB_CRWRDA_NP, reg, &val);
+}