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Diffstat (limited to 'arch/arm/mach-uniphier/clk/clk-ld11.c')
-rw-r--r--arch/arm/mach-uniphier/clk/clk-ld11.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-ld11.c b/arch/arm/mach-uniphier/clk/clk-ld11.c
new file mode 100644
index 0000000000..92a07338a8
--- /dev/null
+++ b/arch/arm/mach-uniphier/clk/clk-ld11.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "../sg-regs.h"
+
+void uniphier_ld11_clk_init(void)
+{
+ if (readl(SG_PINMON0) & BIT(27)) {
+ /* if booted without stand-by MPU */
+
+ writel(1, SG_ETPHYPSHUT);
+ writel(1, SG_ETPHYCNT);
+
+ udelay(1); /* wait for regulator level 1.1V -> 2.5V */
+
+ writel(3, SG_ETPHYCNT);
+ writel(3, SG_ETPHYPSHUT);
+ writel(7, SG_ETPHYCNT);
+ }
+}