ARM: uniphier: add PH1-LD11 SoC support

This is a low-cost ARMv8 SoC from Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

2 files changed, 29 insertions, 0 deletions

diff --git a/arch/arm/mach-uniphier/clk/Makefile b/arch/arm/mach-uniphier/clk/Makefile
index 93e9d91e47..1428e0c9cc 100644
--- a/arch/arm/mach-uniphier/clk/Makefile
+++ b/arch/arm/mach-uniphier/clk/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= clk-ld4.o
 obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= clk-pro5.o
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= clk-ld11.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= clk-ld20.o
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);
+	}
+}