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

source code of linux/include/linux/sm501.h