sm501.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/* include/linux/sm501.h
  3 *
  4 * Copyright (c) 2006 Simtec Electronics
  5 *	Ben Dooks <ben@simtec.co.uk>
  6 *	Vincent Sanders <vince@simtec.co.uk>
  7*/
  8
  9extern int sm501_unit_power(struct device *dev,
 10			    unsigned int unit, unsigned int to);
 11
 12extern unsigned long sm501_set_clock(struct device *dev,
 13				     int clksrc, unsigned long freq);
 14
 15/* sm501_misc_control
 16 *
 17 * Modify the SM501's MISC_CONTROL register
 18*/
 19
 20extern int sm501_misc_control(struct device *dev,
 21			      unsigned long set, unsigned long clear);
 22
 23/* sm501_modify_reg
 24 *
 25 * Modify a register in the SM501 which may be shared with other
 26 * drivers.
 27*/
 28
 29extern unsigned long sm501_modify_reg(struct device *dev,
 30				      unsigned long reg,
 31				      unsigned long set,
 32				      unsigned long clear);
 33
 34
 35/* Platform data definitions */
 36
 37#define SM501FB_FLAG_USE_INIT_MODE	(1<<0)
 38#define SM501FB_FLAG_DISABLE_AT_EXIT	(1<<1)
 39#define SM501FB_FLAG_USE_HWCURSOR	(1<<2)
 40#define SM501FB_FLAG_USE_HWACCEL	(1<<3)
 41#define SM501FB_FLAG_PANEL_NO_FPEN	(1<<4)
 42#define SM501FB_FLAG_PANEL_NO_VBIASEN	(1<<5)
 43#define SM501FB_FLAG_PANEL_INV_FPEN	(1<<6)
 44#define SM501FB_FLAG_PANEL_INV_VBIASEN	(1<<7)
 45
 46struct sm501_platdata_fbsub {
 47	struct fb_videomode	*def_mode;
 48	unsigned int		 def_bpp;
 49	unsigned long		 max_mem;
 50	unsigned int		 flags;
 51};
 52
 53enum sm501_fb_routing {
 54	SM501_FB_OWN		= 0,	/* CRT=>CRT, Panel=>Panel */
 55	SM501_FB_CRT_PANEL	= 1,	/* Panel=>CRT, Panel=>Panel */
 56};
 57
 58/* sm501_platdata_fb flag field bit definitions */
 59
 60#define SM501_FBPD_SWAP_FB_ENDIAN	(1<<0)	/* need to endian swap */
 61
 62/* sm501_platdata_fb
 63 *
 64 * configuration data for the framebuffer driver
 65*/
 66
 67struct sm501_platdata_fb {
 68	enum sm501_fb_routing		 fb_route;
 69	unsigned int			 flags;
 70	struct sm501_platdata_fbsub	*fb_crt;
 71	struct sm501_platdata_fbsub	*fb_pnl;
 72};
 73
 74/* gpio i2c
 75 *
 76 * Note, we have to pass in the bus number, as the number used will be
 77 * passed to the i2c-gpio driver's platform_device.id, subsequently used
 78 * to register the i2c bus.
 79*/
 80
 81struct sm501_platdata_gpio_i2c {
 82	unsigned int		bus_num;
 83	unsigned int		pin_sda;
 84	unsigned int		pin_scl;
 85	int			udelay;
 86	int			timeout;
 87};
 88
 89/* sm501_initdata
 90 *
 91 * use for initialising values that may not have been setup
 92 * before the driver is loaded.
 93*/
 94
 95struct sm501_reg_init {
 96	unsigned long		set;
 97	unsigned long		mask;
 98};
 99
100#define SM501_USE_USB_HOST	(1<<0)
101#define SM501_USE_USB_SLAVE	(1<<1)
102#define SM501_USE_SSP0		(1<<2)
103#define SM501_USE_SSP1		(1<<3)
104#define SM501_USE_UART0		(1<<4)
105#define SM501_USE_UART1		(1<<5)
106#define SM501_USE_FBACCEL	(1<<6)
107#define SM501_USE_AC97		(1<<7)
108#define SM501_USE_I2S		(1<<8)
109#define SM501_USE_GPIO		(1<<9)
110
111#define SM501_USE_ALL		(0xffffffff)
112
113struct sm501_initdata {
114	struct sm501_reg_init	gpio_low;
115	struct sm501_reg_init	gpio_high;
116	struct sm501_reg_init	misc_timing;
117	struct sm501_reg_init	misc_control;
118
119	unsigned long		devices;
120	unsigned long		mclk;		/* non-zero to modify */
121	unsigned long		m1xclk;		/* non-zero to modify */
122};
123
124/* sm501_init_gpio
125 *
126 * default gpio settings
127*/
128
129struct sm501_init_gpio {
130	struct sm501_reg_init	gpio_data_low;
131	struct sm501_reg_init	gpio_data_high;
132	struct sm501_reg_init	gpio_ddr_low;
133	struct sm501_reg_init	gpio_ddr_high;
134};
135
136#define SM501_FLAG_SUSPEND_OFF		(1<<4)
137
138/* sm501_platdata
139 *
140 * This is passed with the platform device to allow the board
141 * to control the behaviour of the SM501 driver(s) which attach
142 * to the device.
143 *
144*/
145
146struct sm501_platdata {
147	struct sm501_initdata		*init;
148	struct sm501_init_gpio		*init_gpiop;
149	struct sm501_platdata_fb	*fb;
150
151	int				 flags;
152	int				 gpio_base;
153
154	int	(*get_power)(struct device *dev);
155	int	(*set_power)(struct device *dev, unsigned int on);
156
157	struct sm501_platdata_gpio_i2c	*gpio_i2c;
158	unsigned int			 gpio_i2c_nr;
159};
160
161#if defined(CONFIG_PPC32)
162#define smc501_readl(addr)		ioread32be((addr))
163#define smc501_writel(val, addr)	iowrite32be((val), (addr))
164#else
165#define smc501_readl(addr)		readl(addr)
166#define smc501_writel(val, addr)	writel(val, addr)
167#endif