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TOMOYO Linux Cross Reference
Linux/include/linux/sm501.h

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  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 
 21 extern int sm501_unit_power(struct device *dev,
 22                             unsigned int unit, unsigned int to);
 23 
 24 extern unsigned long sm501_set_clock(struct device *dev,
 25                                      int clksrc, unsigned long freq);
 26 
 27 extern 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 
 35 extern 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 
 44 extern 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 
 61 struct 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 
 68 enum 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 
 82 struct 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 
 96 struct 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 
110 struct 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 
128 struct 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 
144 struct 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 
161 struct 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 

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