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[mirror_ubuntu-bionic-kernel.git] / include / linux / sm501.h
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