1 files changed, 96 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/ccu.h b/arch/arm/include/asm/arch-sunxi/ccu.h
new file mode 100644
index 0000000..5dd97ab
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/ccu.h
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Amarula Solutions.
+ * Author: Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+#ifndef _ASM_ARCH_CCU_H
+#define _ASM_ARCH_CCU_H
+
+/**
+ * enum ccu_flags - ccu clock/reset flags
+ *
+ * @CCU_CLK_F_IS_VALID:		is given clock gate is valid?
+ * @CCU_RST_F_IS_VALID:		is given reset control is valid?
+ */
+enum ccu_flags {
+	CCU_CLK_F_IS_VALID		= BIT(0),
+	CCU_RST_F_IS_VALID		= BIT(1),
+};
+
+/**
+ * struct ccu_clk_gate - ccu clock gate
+ * @off:	gate offset
+ * @bit:	gate bit
+ * @flags:	ccu clock gate flags
+ */
+struct ccu_clk_gate {
+	u16 off;
+	u32 bit;
+	enum ccu_flags flags;
+};
+
+#define GATE(_off, _bit) {			\
+	.off = _off,				\
+	.bit = _bit,				\
+	.flags = CCU_CLK_F_IS_VALID,		\
+}
+
+/**
+ * struct ccu_reset - ccu reset
+ * @off:	reset offset
+ * @bit:	reset bit
+ * @flags:	ccu reset control flags
+ */
+struct ccu_reset {
+	u16 off;
+	u32 bit;
+	enum ccu_flags flags;
+};
+
+#define RESET(_off, _bit) {			\
+	.off = _off,				\
+	.bit = _bit,				\
+	.flags = CCU_RST_F_IS_VALID,		\
+}
+
+/**
+ * struct ccu_desc - clock control unit descriptor
+ *
+ * @gates:	clock gates
+ * @resets:	reset unit
+ */
+struct ccu_desc {
+	const struct ccu_clk_gate *gates;
+	const struct ccu_reset *resets;
+};
+
+/**
+ * struct ccu_priv - sunxi clock control unit
+ *
+ * @base:	base address
+ * @desc:	ccu descriptor
+ */
+struct ccu_priv {
+	void *base;
+	const struct ccu_desc *desc;
+};
+
+/**
+ * sunxi_clk_probe - common sunxi clock probe
+ * @dev:	clock device
+ */
+int sunxi_clk_probe(struct udevice *dev);
+
+extern struct clk_ops sunxi_clk_ops;
+
+/**
+ * sunxi_reset_bind() - reset binding
+ *
+ * @dev:       reset device
+ * @count:     reset count
+ * @return 0 success, or error value
+ */
+int sunxi_reset_bind(struct udevice *dev, ulong count);
+
+#endif /* _ASM_ARCH_CCU_H */