3 files changed, 31 insertions, 16 deletions
diff --git a/arch/arm/include/asm/arch-aspeed/scu_ast2500.h b/arch/arm/include/asm/arch-aspeed/scu_ast2500.h
index fc0c01a..0fa3ecb 100644
--- a/arch/arm/include/asm/arch-aspeed/scu_ast2500.h
+++ b/arch/arm/include/asm/arch-aspeed/scu_ast2500.h
@@ -120,6 +120,20 @@ int ast_get_clk(struct udevice **devp);
  */
 void *ast_get_scu(void);
 
+/**
+ * ast_scu_unlock() - unlock protected registers
+ *
+ * @scu, pointer to ast2500_scu
+ */
+void ast_scu_unlock(struct ast2500_scu *scu);
+
+/**
+ * ast_scu_lock() - lock protected registers
+ *
+ * @scu, pointer to ast2500_scu
+ */
+void ast_scu_lock(struct ast2500_scu *scu);
+
 #endif  /* __ASSEMBLY__ */
 
 #endif  /* _ASM_ARCH_SCU_AST2500_H */
diff --git a/arch/arm/mach-aspeed/ast2500/clk_ast2500.c b/arch/arm/mach-aspeed/ast2500/clk_ast2500.c
index 079909f..30cfac1 100644
--- a/arch/arm/mach-aspeed/ast2500/clk_ast2500.c
+++ b/arch/arm/mach-aspeed/ast2500/clk_ast2500.c
@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <asm/io.h>
 #include <asm/arch/scu_ast2500.h>
 
 int ast_get_clk(struct udevice **devp)
@@ -28,3 +29,17 @@ void *ast_get_scu(void)
 
 	return priv->scu;
 }
+
+void ast_scu_unlock(struct ast2500_scu *scu)
+{
+	writel(SCU_UNLOCK_VALUE, &scu->protection_key);
+	while (!readl(&scu->protection_key))
+		;
+}
+
+void ast_scu_lock(struct ast2500_scu *scu)
+{
+	writel(~SCU_UNLOCK_VALUE, &scu->protection_key);
+	while (readl(&scu->protection_key))
+		;
+}
diff --git a/drivers/clk/aspeed/clk_ast2500.c b/drivers/clk/aspeed/clk_ast2500.c
index 26a5e58..5047312 100644
--- a/drivers/clk/aspeed/clk_ast2500.c
+++ b/drivers/clk/aspeed/clk_ast2500.c
@@ -132,20 +132,6 @@ static ulong ast2500_clk_get_rate(struct clk *clk)
 	return rate;
 }
 
-static void ast2500_scu_unlock(struct ast2500_scu *scu)
-{
-	writel(SCU_UNLOCK_VALUE, &scu->protection_key);
-	while (!readl(&scu->protection_key))
-		;
-}
-
-static void ast2500_scu_lock(struct ast2500_scu *scu)
-{
-	writel(~SCU_UNLOCK_VALUE, &scu->protection_key);
-	while (readl(&scu->protection_key))
-		;
-}
-
 static ulong ast2500_configure_ddr(struct ast2500_scu *scu, ulong rate)
 {
 	ulong clkin = ast2500_get_clkin(scu);
@@ -197,9 +183,9 @@ static ulong ast2500_configure_ddr(struct ast2500_scu *scu, ulong rate)
 	    | (best_num << SCU_MPLL_NUM_SHIFT)
 	    | (best_denum << SCU_MPLL_DENUM_SHIFT);
 
-	ast2500_scu_unlock(scu);
+	ast_scu_unlock(scu);
 	writel(mpll_reg, &scu->m_pll_param);
-	ast2500_scu_lock(scu);
+	ast_scu_lock(scu);
 
 	return ast2500_get_mpll_rate(clkin, mpll_reg);
 }