Linux kernel mirror (for testing)
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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