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
15extern unsigned long sm501_find_clock(struct device *dev,
16				      int clksrc, unsigned long req_freq);
17
18/* sm501_misc_control
19 *
20 * Modify the SM501's MISC_CONTROL register
21*/
22
23extern int sm501_misc_control(struct device *dev,
24			      unsigned long set, unsigned long clear);
25
26/* sm501_modify_reg
27 *
28 * Modify a register in the SM501 which may be shared with other
29 * drivers.
30*/
31
32extern unsigned long sm501_modify_reg(struct device *dev,
33				      unsigned long reg,
34				      unsigned long set,
35				      unsigned long clear);
36
37
38/* Platform data definitions */
39
40#define SM501FB_FLAG_USE_INIT_MODE	(1<<0)
41#define SM501FB_FLAG_DISABLE_AT_EXIT	(1<<1)
42#define SM501FB_FLAG_USE_HWCURSOR	(1<<2)
43#define SM501FB_FLAG_USE_HWACCEL	(1<<3)
44#define SM501FB_FLAG_PANEL_NO_FPEN	(1<<4)
45#define SM501FB_FLAG_PANEL_NO_VBIASEN	(1<<5)
46#define SM501FB_FLAG_PANEL_INV_FPEN	(1<<6)
47#define SM501FB_FLAG_PANEL_INV_VBIASEN	(1<<7)
48
49struct sm501_platdata_fbsub {
50	struct fb_videomode	*def_mode;
51	unsigned int		 def_bpp;
52	unsigned long		 max_mem;
53	unsigned int		 flags;
54};
55
56enum sm501_fb_routing {
57	SM501_FB_OWN		= 0,	/* CRT=>CRT, Panel=>Panel */
58	SM501_FB_CRT_PANEL	= 1,	/* Panel=>CRT, Panel=>Panel */
59};
60
61/* sm501_platdata_fb flag field bit definitions */
62
63#define SM501_FBPD_SWAP_FB_ENDIAN	(1<<0)	/* need to endian swap */
64
65/* sm501_platdata_fb
66 *
67 * configuration data for the framebuffer driver
68*/
69
70struct sm501_platdata_fb {
71	enum sm501_fb_routing		 fb_route;
72	unsigned int			 flags;
73	struct sm501_platdata_fbsub	*fb_crt;
74	struct sm501_platdata_fbsub	*fb_pnl;
75};
76
77/* gpio i2c
78 *
79 * Note, we have to pass in the bus number, as the number used will be
80 * passed to the i2c-gpio driver's platform_device.id, subsequently used
81 * to register the i2c bus.
82*/
83
84struct sm501_platdata_gpio_i2c {
85	unsigned int		bus_num;
86	unsigned int		pin_sda;
87	unsigned int		pin_scl;
88	int			udelay;
89	int			timeout;
90};
91
92/* sm501_initdata
93 *
94 * use for initialising values that may not have been setup
95 * before the driver is loaded.
96*/
97
98struct sm501_reg_init {
99	unsigned long		set;
100	unsigned long		mask;
101};
102
103#define SM501_USE_USB_HOST	(1<<0)
104#define SM501_USE_USB_SLAVE	(1<<1)
105#define SM501_USE_SSP0		(1<<2)
106#define SM501_USE_SSP1		(1<<3)
107#define SM501_USE_UART0		(1<<4)
108#define SM501_USE_UART1		(1<<5)
109#define SM501_USE_FBACCEL	(1<<6)
110#define SM501_USE_AC97		(1<<7)
111#define SM501_USE_I2S		(1<<8)
112#define SM501_USE_GPIO		(1<<9)
113
114#define SM501_USE_ALL		(0xffffffff)
115
116struct sm501_initdata {
117	struct sm501_reg_init	gpio_low;
118	struct sm501_reg_init	gpio_high;
119	struct sm501_reg_init	misc_timing;
120	struct sm501_reg_init	misc_control;
121
122	unsigned long		devices;
123	unsigned long		mclk;		/* non-zero to modify */
124	unsigned long		m1xclk;		/* non-zero to modify */
125};
126
127/* sm501_init_gpio
128 *
129 * default gpio settings
130*/
131
132struct sm501_init_gpio {
133	struct sm501_reg_init	gpio_data_low;
134	struct sm501_reg_init	gpio_data_high;
135	struct sm501_reg_init	gpio_ddr_low;
136	struct sm501_reg_init	gpio_ddr_high;
137};
138
139#define SM501_FLAG_SUSPEND_OFF		(1<<4)
140
141/* sm501_platdata
142 *
143 * This is passed with the platform device to allow the board
144 * to control the behaviour of the SM501 driver(s) which attach
145 * to the device.
146 *
147*/
148
149struct sm501_platdata {
150	struct sm501_initdata		*init;
151	struct sm501_init_gpio		*init_gpiop;
152	struct sm501_platdata_fb	*fb;
153
154	int				 flags;
155	int				 gpio_base;
156
157	int	(*get_power)(struct device *dev);
158	int	(*set_power)(struct device *dev, unsigned int on);
159
160	struct sm501_platdata_gpio_i2c	*gpio_i2c;
161	unsigned int			 gpio_i2c_nr;
162};
163
164#if defined(CONFIG_PPC32)
165#define smc501_readl(addr)		ioread32be((addr))
166#define smc501_writel(val, addr)	iowrite32be((val), (addr))
167#else
168#define smc501_readl(addr)		readl(addr)
169#define smc501_writel(val, addr)	writel(val, addr)
170#endif
171