1 /* include/linux/sm501.h
3 * Copyright (c) 2006 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * Vincent Sanders <vince@simtec.co.uk>
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
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.
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
21 extern int sm501_unit_power(struct device *dev,
22 unsigned int unit, unsigned int to);
24 extern unsigned long sm501_set_clock(struct device *dev,
25 int clksrc, unsigned long freq);
27 extern unsigned long sm501_find_clock(int clksrc, unsigned long req_freq);
31 * Modify the SM501's MISC_CONTROL register
34 extern int sm501_misc_control(struct device *dev,
35 unsigned long set, unsigned long clear);
39 * Modify a register in the SM501 which may be shared with other
43 extern unsigned long sm501_modify_reg(struct device *dev,
50 * set the state of the given GPIO line
53 extern void sm501_gpio_set(struct device *dev,
60 * get the state of the given GPIO line
63 extern unsigned long sm501_gpio_get(struct device *dev,
67 /* Platform data definitions */
69 #define SM501FB_FLAG_USE_INIT_MODE (1<<0)
70 #define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1)
71 #define SM501FB_FLAG_USE_HWCURSOR (1<<2)
72 #define SM501FB_FLAG_USE_HWACCEL (1<<3)
74 struct sm501_platdata_fbsub {
75 struct fb_videomode *def_mode;
77 unsigned long max_mem;
81 enum sm501_fb_routing {
82 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */
83 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */
86 /* sm501_platdata_fb flag field bit definitions */
88 #define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */
92 * configuration data for the framebuffer driver
95 struct sm501_platdata_fb {
96 enum sm501_fb_routing fb_route;
98 struct sm501_platdata_fbsub *fb_crt;
99 struct sm501_platdata_fbsub *fb_pnl;
104 struct sm501_platdata_gpio_i2c {
105 unsigned int pin_sda;
106 unsigned int pin_scl;
111 * use for initialising values that may not have been setup
112 * before the driver is loaded.
115 struct sm501_reg_init {
120 #define SM501_USE_USB_HOST (1<<0)
121 #define SM501_USE_USB_SLAVE (1<<1)
122 #define SM501_USE_SSP0 (1<<2)
123 #define SM501_USE_SSP1 (1<<3)
124 #define SM501_USE_UART0 (1<<4)
125 #define SM501_USE_UART1 (1<<5)
126 #define SM501_USE_FBACCEL (1<<6)
127 #define SM501_USE_AC97 (1<<7)
128 #define SM501_USE_I2S (1<<8)
130 #define SM501_USE_ALL (0xffffffff)
132 struct sm501_initdata {
133 struct sm501_reg_init gpio_low;
134 struct sm501_reg_init gpio_high;
135 struct sm501_reg_init misc_timing;
136 struct sm501_reg_init misc_control;
138 unsigned long devices;
139 unsigned long mclk; /* non-zero to modify */
140 unsigned long m1xclk; /* non-zero to modify */
145 * default gpio settings
148 struct sm501_init_gpio {
149 struct sm501_reg_init gpio_data_low;
150 struct sm501_reg_init gpio_data_high;
151 struct sm501_reg_init gpio_ddr_low;
152 struct sm501_reg_init gpio_ddr_high;
157 * This is passed with the platform device to allow the board
158 * to control the behaviour of the SM501 driver(s) which attach
163 struct sm501_platdata {
164 struct sm501_initdata *init;
165 struct sm501_init_gpio *init_gpiop;
166 struct sm501_platdata_fb *fb;
168 struct sm501_platdata_gpio_i2c *gpio_i2c;
169 unsigned int gpio_i2c_nr;