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 extern 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 23 extern 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 32 extern 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 49 struct 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 56 enum 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 70 struct 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 84 struct 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 98 struct 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) 115 116 struct 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 */ 131 132 struct 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 */ 148 149 struct 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