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 9 extern int sm501_unit_power(struct device *dev, 10 unsigned int unit, unsigned int to); 11 12 extern unsigned long sm501_set_clock(struct device *dev, 13 int clksrc, unsigned long freq); 14 15 /* sm501_misc_control 16 * 17 * Modify the SM501's MISC_CONTROL register 18 */ 19 20 extern int sm501_misc_control(struct device *dev, 21 unsigned long set, unsigned long clear); 22 23 /* sm501_modify_reg 24 * 25 * Modify a register in the SM501 which may be shared with other 26 * drivers. 27 */ 28 29 extern unsigned long sm501_modify_reg(struct device *dev, 30 unsigned long reg, 31 unsigned long set, 32 unsigned long clear); 33 34 35 /* Platform data definitions */ 36 37 #define SM501FB_FLAG_USE_INIT_MODE (1<<0) 38 #define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1) 39 #define SM501FB_FLAG_USE_HWCURSOR (1<<2) 40 #define SM501FB_FLAG_USE_HWACCEL (1<<3) 41 #define SM501FB_FLAG_PANEL_NO_FPEN (1<<4) 42 #define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5) 43 #define SM501FB_FLAG_PANEL_INV_FPEN (1<<6) 44 #define SM501FB_FLAG_PANEL_INV_VBIASEN (1<<7) 45 46 struct sm501_platdata_fbsub { 47 struct fb_videomode *def_mode; 48 unsigned int def_bpp; 49 unsigned long max_mem; 50 unsigned int flags; 51 }; 52 53 enum sm501_fb_routing { 54 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */ 55 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */ 56 }; 57 58 /* sm501_platdata_fb flag field bit definitions */ 59 60 #define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */ 61 62 /* sm501_platdata_fb 63 * 64 * configuration data for the framebuffer driver 65 */ 66 67 struct sm501_platdata_fb { 68 enum sm501_fb_routing fb_route; 69 unsigned int flags; 70 struct sm501_platdata_fbsub *fb_crt; 71 struct sm501_platdata_fbsub *fb_pnl; 72 }; 73 74 /* gpio i2c 75 * 76 * Note, we have to pass in the bus number, as the number used will be 77 * passed to the i2c-gpio driver's platform_device.id, subsequently used 78 * to register the i2c bus. 79 */ 80 81 struct sm501_platdata_gpio_i2c { 82 unsigned int bus_num; 83 unsigned int pin_sda; 84 unsigned int pin_scl; 85 int udelay; 86 int timeout; 87 }; 88 89 /* sm501_initdata 90 * 91 * use for initialising values that may not have been setup 92 * before the driver is loaded. 93 */ 94 95 struct sm501_reg_init { 96 unsigned long set; 97 unsigned long mask; 98 }; 99 100 #define SM501_USE_USB_HOST (1<<0) 101 #define SM501_USE_USB_SLAVE (1<<1) 102 #define SM501_USE_SSP0 (1<<2) 103 #define SM501_USE_SSP1 (1<<3) 104 #define SM501_USE_UART0 (1<<4) 105 #define SM501_USE_UART1 (1<<5) 106 #define SM501_USE_FBACCEL (1<<6) 107 #define SM501_USE_AC97 (1<<7) 108 #define SM501_USE_I2S (1<<8) 109 #define SM501_USE_GPIO (1<<9) 110 111 #define SM501_USE_ALL (0xffffffff) 112 113 struct sm501_initdata { 114 struct sm501_reg_init gpio_low; 115 struct sm501_reg_init gpio_high; 116 struct sm501_reg_init misc_timing; 117 struct sm501_reg_init misc_control; 118 119 unsigned long devices; 120 unsigned long mclk; /* non-zero to modify */ 121 unsigned long m1xclk; /* non-zero to modify */ 122 }; 123 124 /* sm501_init_gpio 125 * 126 * default gpio settings 127 */ 128 129 struct sm501_init_gpio { 130 struct sm501_reg_init gpio_data_low; 131 struct sm501_reg_init gpio_data_high; 132 struct sm501_reg_init gpio_ddr_low; 133 struct sm501_reg_init gpio_ddr_high; 134 }; 135 136 #define SM501_FLAG_SUSPEND_OFF (1<<4) 137 138 /* sm501_platdata 139 * 140 * This is passed with the platform device to allow the board 141 * to control the behaviour of the SM501 driver(s) which attach 142 * to the device. 143 * 144 */ 145 146 struct sm501_platdata { 147 struct sm501_initdata *init; 148 struct sm501_init_gpio *init_gpiop; 149 struct sm501_platdata_fb *fb; 150 151 int flags; 152 int gpio_base; 153 154 int (*get_power)(struct device *dev); 155 int (*set_power)(struct device *dev, unsigned int on); 156 157 struct sm501_platdata_gpio_i2c *gpio_i2c; 158 unsigned int gpio_i2c_nr; 159 }; 160 161 #if defined(CONFIG_PPC32) 162 #define smc501_readl(addr) ioread32be((addr)) 163 #define smc501_writel(val, addr) iowrite32be((val), (addr)) 164 #else 165 #define smc501_readl(addr) readl(addr) 166 #define smc501_writel(val, addr) writel(val, addr) 167 #endif 168