LXR linux/include/linux/sm501.h

   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
  15extern unsigned long sm501_find_clock(struct device *dev,
  16                                      int clksrc, unsigned long req_freq);
  17
  18/* sm501_misc_control
  19 *
  20 * Modify the SM501's MISC_CONTROL register
  21*/
  22
  23extern int sm501_misc_control(struct device *dev,
  24                              unsigned long set, unsigned long clear);
  25
  26/* sm501_modify_reg
  27 *
  28 * Modify a register in the SM501 which may be shared with other
  29 * drivers.
  30*/
  31
  32extern unsigned long sm501_modify_reg(struct device *dev,
  33                                      unsigned long reg,
  34                                      unsigned long set,
  35                                      unsigned long clear);
  36
  37
  38/* Platform data definitions */
  39
  40#define SM501FB_FLAG_USE_INIT_MODE      (1<<0)
  41#define SM501FB_FLAG_DISABLE_AT_EXIT    (1<<1)
  42#define SM501FB_FLAG_USE_HWCURSOR       (1<<2)
  43#define SM501FB_FLAG_USE_HWACCEL        (1<<3)
  44#define SM501FB_FLAG_PANEL_NO_FPEN      (1<<4)
  45#define SM501FB_FLAG_PANEL_NO_VBIASEN   (1<<5)
  46#define SM501FB_FLAG_PANEL_INV_FPEN     (1<<6)
  47#define SM501FB_FLAG_PANEL_INV_VBIASEN  (1<<7)
  48
  49struct sm501_platdata_fbsub {
  50        struct fb_videomode     *def_mode;
  51        unsigned int             def_bpp;
  52        unsigned long            max_mem;
  53        unsigned int             flags;
  54};
  55
  56enum sm501_fb_routing {
  57        SM501_FB_OWN            = 0,    /* CRT=>CRT, Panel=>Panel */
  58        SM501_FB_CRT_PANEL      = 1,    /* Panel=>CRT, Panel=>Panel */
  59};
  60
  61/* sm501_platdata_fb flag field bit definitions */
  62
  63#define SM501_FBPD_SWAP_FB_ENDIAN       (1<<0)  /* need to endian swap */
  64
  65/* sm501_platdata_fb
  66 *
  67 * configuration data for the framebuffer driver
  68*/
  69
  70struct sm501_platdata_fb {
  71        enum sm501_fb_routing            fb_route;
  72        unsigned int                     flags;
  73        struct sm501_platdata_fbsub     *fb_crt;
  74        struct sm501_platdata_fbsub     *fb_pnl;
  75};
  76
  77/* gpio i2c
  78 *
  79 * Note, we have to pass in the bus number, as the number used will be
  80 * passed to the i2c-gpio driver's platform_device.id, subsequently used
  81 * to register the i2c bus.
  82*/
  83
  84struct sm501_platdata_gpio_i2c {
  85        unsigned int            bus_num;
  86        unsigned int            pin_sda;
  87        unsigned int            pin_scl;
  88        int                     udelay;
  89        int                     timeout;
  90};
  91
  92/* sm501_initdata
  93 *
  94 * use for initialising values that may not have been setup
  95 * before the driver is loaded.
  96*/
  97
  98struct sm501_reg_init {
  99        unsigned long           set;
 100        unsigned long           mask;
 101};
 102
 103#define SM501_USE_USB_HOST      (1<<0)
 104#define SM501_USE_USB_SLAVE     (1<<1)
 105#define SM501_USE_SSP0          (1<<2)
 106#define SM501_USE_SSP1          (1<<3)
 107#define SM501_USE_UART0         (1<<4)
 108#define SM501_USE_UART1         (1<<5)
 109#define SM501_USE_FBACCEL       (1<<6)
 110#define SM501_USE_AC97          (1<<7)
 111#define SM501_USE_I2S           (1<<8)
 112#define SM501_USE_GPIO          (1<<9)
 113
 114#define SM501_USE_ALL           (0xffffffff)
 115
 116struct sm501_initdata {
 117        struct sm501_reg_init   gpio_low;
 118        struct sm501_reg_init   gpio_high;
 119        struct sm501_reg_init   misc_timing;
 120        struct sm501_reg_init   misc_control;
 121
 122        unsigned long           devices;
 123        unsigned long           mclk;           /* non-zero to modify */
 124        unsigned long           m1xclk;         /* non-zero to modify */
 125};
 126
 127/* sm501_init_gpio
 128 *
 129 * default gpio settings
 130*/
 131
 132struct sm501_init_gpio {
 133        struct sm501_reg_init   gpio_data_low;
 134        struct sm501_reg_init   gpio_data_high;
 135        struct sm501_reg_init   gpio_ddr_low;
 136        struct sm501_reg_init   gpio_ddr_high;
 137};
 138
 139#define SM501_FLAG_SUSPEND_OFF          (1<<4)
 140
 141/* sm501_platdata
 142 *
 143 * This is passed with the platform device to allow the board
 144 * to control the behaviour of the SM501 driver(s) which attach
 145 * to the device.
 146 *
 147*/
 148
 149struct sm501_platdata {
 150        struct sm501_initdata           *init;
 151        struct sm501_init_gpio          *init_gpiop;
 152        struct sm501_platdata_fb        *fb;
 153
 154        int                              flags;
 155        int                              gpio_base;
 156
 157        int     (*get_power)(struct device *dev);
 158        int     (*set_power)(struct device *dev, unsigned int on);
 159
 160        struct sm501_platdata_gpio_i2c  *gpio_i2c;
 161        unsigned int                     gpio_i2c_nr;
 162};
 163
 164#if defined(CONFIG_PPC32)
 165#define smc501_readl(addr)              ioread32be((addr))
 166#define smc501_writel(val, addr)        iowrite32be((val), (addr))
 167#else
 168#define smc501_readl(addr)              readl(addr)
 169#define smc501_writel(val, addr)        writel(val, addr)
 170#endif
 171