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, 33 insertions, 0 deletions

diff --git a/arch/arm/mach-uniphier/early-clk/Makefile b/arch/arm/mach-uniphier/early-clk/Makefile
index 9242b416c5..755a3618b5 100644
--- a/arch/arm/mach-uniphier/early-clk/Makefile
+++ b/arch/arm/mach-uniphier/early-clk/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= early-clk-ld4.o
 obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= early-clk-pro5.o
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= early-clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= early-clk-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= early-clk-ld11.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= early-clk-ld20.o
diff --git a/arch/arm/mach-uniphier/early-clk/early-clk-ld11.c b/arch/arm/mach-uniphier/early-clk/early-clk-ld11.c
new file mode 100644
index 0000000000..c94d83c4ed
--- /dev/null
+++ b/arch/arm/mach-uniphier/early-clk/early-clk-ld11.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <linux/io.h>
+
+#include "../init.h"
+#include "../sc64-regs.h"
+
+int uniphier_ld11_early_clk_init(const struct uniphier_board_data *bd)
+{
+	u32 tmp;
+
+	/* deassert reset */
+	tmp = readl(SC_RSTCTRL7);
+	tmp |= SC_RSTCTRL7_UMC31 | SC_RSTCTRL7_UMC30;
+	writel(tmp, SC_RSTCTRL7);
+
+	/* provide clocks */
+	tmp = readl(SC_CLKCTRL4);
+	tmp |= SC_CLKCTRL4_PERI;
+	writel(tmp, SC_CLKCTRL4);
+
+	tmp = readl(SC_CLKCTRL7);
+	tmp |= SC_CLKCTRL7_UMC31 | SC_CLKCTRL7_UMC30;
+	writel(tmp, SC_CLKCTRL7);
+
+	return 0;
+}