GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * (C) Copyright 2015 Google, Inc
+ */
+
+#ifndef _ASM_ARCH_CLOCK_H
+#define _ASM_ARCH_CLOCK_H
+
+/* define pll mode */
+#define RKCLK_PLL_MODE_SLOW		0
+#define RKCLK_PLL_MODE_NORMAL		1
+#define RKCLK_PLL_MODE_DEEP		2
+
+enum {
+	ROCKCHIP_SYSCON_NOC,
+	ROCKCHIP_SYSCON_GRF,
+	ROCKCHIP_SYSCON_SGRF,
+	ROCKCHIP_SYSCON_PMU,
+	ROCKCHIP_SYSCON_PMUGRF,
+	ROCKCHIP_SYSCON_PMUSGRF,
+	ROCKCHIP_SYSCON_CIC,
+	ROCKCHIP_SYSCON_MSCH,
+};
+
+/* Standard Rockchip clock numbers */
+enum rk_clk_id {
+	CLK_OSC,
+	CLK_ARM,
+	CLK_DDR,
+	CLK_CODEC,
+	CLK_GENERAL,
+	CLK_NEW,
+
+	CLK_COUNT,
+};
+
+#define PLL(_type, _id, _con, _mode, _mshift,			\
+		 _lshift, _pflags, _rtable)			\
+	{							\
+		.id		= _id,				\
+		.type		= _type,			\
+		.con_offset	= _con,				\
+		.mode_offset	= _mode,			\
+		.mode_shift	= _mshift,			\
+		.lock_shift	= _lshift,			\
+		.pll_flags	= _pflags,			\
+		.rate_table	= _rtable,			\
+	}
+
+#define RK3036_PLL_RATE(_rate, _refdiv, _fbdiv, _postdiv1,	\
+			_postdiv2, _dsmpd, _frac)		\
+{								\
+	.rate	= _rate##U,					\
+	.fbdiv = _fbdiv,					\
+	.postdiv1 = _postdiv1,					\
+	.refdiv = _refdiv,					\
+	.postdiv2 = _postdiv2,					\
+	.dsmpd = _dsmpd,					\
+	.frac = _frac,						\
+}
+
+struct rockchip_pll_rate_table {
+	unsigned long rate;
+	unsigned int nr;
+	unsigned int nf;
+	unsigned int no;
+	unsigned int nb;
+	/* for RK3036/RK3399 */
+	unsigned int fbdiv;
+	unsigned int postdiv1;
+	unsigned int refdiv;
+	unsigned int postdiv2;
+	unsigned int dsmpd;
+	unsigned int frac;
+};
+
+enum rockchip_pll_type {
+	pll_rk3036,
+	pll_rk3066,
+	pll_rk3328,
+	pll_rk3366,
+	pll_rk3399,
+};
+
+struct rockchip_pll_clock {
+	unsigned int			id;
+	unsigned int			con_offset;
+	unsigned int			mode_offset;
+	unsigned int			mode_shift;
+	unsigned int			lock_shift;
+	enum rockchip_pll_type		type;
+	unsigned int			pll_flags;
+	struct rockchip_pll_rate_table *rate_table;
+	unsigned int			mode_mask;
+};
+
+struct rockchip_cpu_rate_table {
+	unsigned long rate;
+	unsigned int aclk_div;
+	unsigned int pclk_div;
+};
+
+int rockchip_pll_set_rate(struct rockchip_pll_clock *pll,
+			  void __iomem *base, ulong clk_id,
+			  ulong drate);
+ulong rockchip_pll_get_rate(struct rockchip_pll_clock *pll,
+			    void __iomem *base, ulong clk_id);
+const struct rockchip_cpu_rate_table *
+rockchip_get_cpu_settings(struct rockchip_cpu_rate_table *cpu_table,
+			  ulong rate);
+
+static inline int rk_pll_id(enum rk_clk_id clk_id)
+{
+	return clk_id - 1;
+}
+
+struct sysreset_reg {
+	unsigned int glb_srst_fst_value;
+	unsigned int glb_srst_snd_value;
+};
+
+/**
+ * clk_get_divisor() - Calculate the required clock divisior
+ *
+ * Given an input rate and a required output_rate, calculate the Rockchip
+ * divisor needed to achieve this.
+ *
+ * @input_rate:		Input clock rate in Hz
+ * @output_rate:	Output clock rate in Hz
+ * @return divisor register value to use
+ */
+static inline u32 clk_get_divisor(ulong input_rate, uint output_rate)
+{
+	uint clk_div;
+
+	clk_div = input_rate / output_rate;
+	clk_div = (clk_div + 1) & 0xfffe;
+
+	return clk_div;
+}
+
+/**
+ * rockchip_get_cru() - get a pointer to the clock/reset unit registers
+ *
+ * @return pointer to registers, or -ve error on error
+ */
+void *rockchip_get_cru(void);
+
+/**
+ * rockchip_get_pmucru() - get a pointer to the clock/reset unit registers
+ *
+ * @return pointer to registers, or -ve error on error
+ */
+void *rockchip_get_pmucru(void);
+
+struct rk3288_cru;
+struct rk3288_grf;
+
+void rk3288_clk_configure_cpu(struct rk3288_cru *cru, struct rk3288_grf *grf);
+
+int rockchip_get_clk(struct udevice **devp);
+
+/*
+ * rockchip_reset_bind() - Bind soft reset device as child of clock device
+ *
+ * @pdev: clock udevice
+ * @reg_offset: the first offset in cru for softreset registers
+ * @reg_number: the reg numbers of softreset registers
+ * @return 0 success, or error value
+ */
+int rockchip_reset_bind(struct udevice *pdev, u32 reg_offset, u32 reg_number);
+
+#endif