/* SPDX-License-Identifier: GPL-2.0+ *//* * Copyright (C) 2021 Sean Anderson <sean.anderson@seco.com> */ #ifndef XILINX_TIMER_H#define XILINX_TIMER_H #include <linux/compiler.h> #define TCSR0	0x00#define TLR0	0x04#define TCR0	0x08#define TCSR1	0x10#define TLR1	0x14#define TCR1	0x18 #define TCSR_MDT	BIT(0)#define TCSR_UDT	BIT(1)#define TCSR_GENT	BIT(2)#define TCSR_CAPT	BIT(3)#define TCSR_ARHT	BIT(4)#define TCSR_LOAD	BIT(5)#define TCSR_ENIT	BIT(6)#define TCSR_ENT	BIT(7)#define TCSR_TINT	BIT(8)#define TCSR_PWMA	BIT(9)#define TCSR_ENALL	BIT(10)#define TCSR_CASC	BIT(11) struct clk;struct device_node;struct regmap; /** * struct xilinx_timer_priv - Private data for Xilinx AXI timer drivers * @map: Regmap of the device, possibly with an offset * @clk: Parent clock * @max: Maximum value of the counters */struct xilinx_timer_priv {	struct regmap *map;	struct clk *clk;	u64 max;}; /** * xilinx_timer_tlr_cycles() - Calculate the TLR for a period specified *                             in clock cycles * @priv: The timer's private data * @tcsr: The value of the TCSR register for this counter * @cycles: The number of cycles in this period * * Callers of this function MUST ensure that @cycles is representable as * a TLR. * * Return: The calculated value for TLR */u32 xilinx_timer_tlr_cycles(struct xilinx_timer_priv *priv, u32 tcsr,			    u64 cycles); /** * xilinx_timer_get_period() - Get the current period of a counter * @priv: The timer's private data * @tlr: The value of TLR for this counter * @tcsr: The value of TCSR for this counter * * Return: The period, in ns */unsigned int xilinx_timer_get_period(struct xilinx_timer_priv *priv,				     u32 tlr, u32 tcsr); #endif /* XILINX_TIMER_H */