1/* include/linux/sm501.h
2 *
3 * Copyright (c) 2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@simtec.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19*/
20
21extern int sm501_unit_power(struct device *dev,
22 unsigned int unit, unsigned int to);
23
24extern unsigned long sm501_set_clock(struct device *dev,
25 int clksrc, unsigned long freq);
26
27extern unsigned long sm501_find_clock(struct device *dev,
28 int clksrc, unsigned long req_freq);
29
30/* sm501_misc_control
31 *
32 * Modify the SM501's MISC_CONTROL register
33*/
34
35extern int sm501_misc_control(struct device *dev,
36 unsigned long set, unsigned long clear);
37
38/* sm501_modify_reg
39 *
40 * Modify a register in the SM501 which may be shared with other
41 * drivers.
42*/
43
44extern unsigned long sm501_modify_reg(struct device *dev,
45 unsigned long reg,
46 unsigned long set,
47 unsigned long clear);
48
49
50/* Platform data definitions */
51
52#define SM501FB_FLAG_USE_INIT_MODE (1<<0)
53#define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1)
54#define SM501FB_FLAG_USE_HWCURSOR (1<<2)
55#define SM501FB_FLAG_USE_HWACCEL (1<<3)
56#define SM501FB_FLAG_PANEL_NO_FPEN (1<<4)
57#define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5)
58#define SM501FB_FLAG_PANEL_INV_FPEN (1<<6)
59#define SM501FB_FLAG_PANEL_INV_VBIASEN (1<<7)
60
61struct sm501_platdata_fbsub {
62 struct fb_videomode *def_mode;
63 unsigned int def_bpp;
64 unsigned long max_mem;
65 unsigned int flags;
66};
67
68enum sm501_fb_routing {
69 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */
70 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */
71};
72
73/* sm501_platdata_fb flag field bit definitions */
74
75#define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */
76
77/* sm501_platdata_fb
78 *
79 * configuration data for the framebuffer driver
80*/
81
82struct sm501_platdata_fb {
83 enum sm501_fb_routing fb_route;
84 unsigned int flags;
85 struct sm501_platdata_fbsub *fb_crt;
86 struct sm501_platdata_fbsub *fb_pnl;
87};
88
89/* gpio i2c
90 *
91 * Note, we have to pass in the bus number, as the number used will be
92 * passed to the i2c-gpio driver's platform_device.id, subsequently used
93 * to register the i2c bus.
94*/
95
96struct sm501_platdata_gpio_i2c {
97 unsigned int bus_num;
98 unsigned int pin_sda;
99 unsigned int pin_scl;
100 int udelay;
101 int timeout;
102};
103
104/* sm501_initdata
105 *
106 * use for initialising values that may not have been setup
107 * before the driver is loaded.
108*/
109
110struct sm501_reg_init {
111 unsigned long set;
112 unsigned long mask;
113};
114
115#define SM501_USE_USB_HOST (1<<0)
116#define SM501_USE_USB_SLAVE (1<<1)
117#define SM501_USE_SSP0 (1<<2)
118#define SM501_USE_SSP1 (1<<3)
119#define SM501_USE_UART0 (1<<4)
120#define SM501_USE_UART1 (1<<5)
121#define SM501_USE_FBACCEL (1<<6)
122#define SM501_USE_AC97 (1<<7)
123#define SM501_USE_I2S (1<<8)
124#define SM501_USE_GPIO (1<<9)
125
126#define SM501_USE_ALL (0xffffffff)
127
128struct sm501_initdata {
129 struct sm501_reg_init gpio_low;
130 struct sm501_reg_init gpio_high;
131 struct sm501_reg_init misc_timing;
132 struct sm501_reg_init misc_control;
133
134 unsigned long devices;
135 unsigned long mclk; /* non-zero to modify */
136 unsigned long m1xclk; /* non-zero to modify */
137};
138
139/* sm501_init_gpio
140 *
141 * default gpio settings
142*/
143
144struct sm501_init_gpio {
145 struct sm501_reg_init gpio_data_low;
146 struct sm501_reg_init gpio_data_high;
147 struct sm501_reg_init gpio_ddr_low;
148 struct sm501_reg_init gpio_ddr_high;
149};
150
151#define SM501_FLAG_SUSPEND_OFF (1<<4)
152
153/* sm501_platdata
154 *
155 * This is passed with the platform device to allow the board
156 * to control the behaviour of the SM501 driver(s) which attach
157 * to the device.
158 *
159*/
160
161struct sm501_platdata {
162 struct sm501_initdata *init;
163 struct sm501_init_gpio *init_gpiop;
164 struct sm501_platdata_fb *fb;
165
166 int flags;
167 int gpio_base;
168
169 int (*get_power)(struct device *dev);
170 int (*set_power)(struct device *dev, unsigned int on);
171
172 struct sm501_platdata_gpio_i2c *gpio_i2c;
173 unsigned int gpio_i2c_nr;
174};
175
176#if defined(CONFIG_PPC32)
177#define smc501_readl(addr) ioread32be((addr))
178#define smc501_writel(val, addr) iowrite32be((val), (addr))
179#else
180#define smc501_readl(addr) readl(addr)
181#define smc501_writel(val, addr) writel(val, addr)
182#endif
183