diff options
Diffstat (limited to 'include/linux/sm501.h')
| -rw-r--r-- | include/linux/sm501.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/include/linux/sm501.h b/include/linux/sm501.h new file mode 100644 index 000000000..2f3488b28 --- /dev/null +++ b/include/linux/sm501.h @@ -0,0 +1,170 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* include/linux/sm501.h + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * Vincent Sanders <vince@simtec.co.uk> +*/ + +extern int sm501_unit_power(struct device *dev, + unsigned int unit, unsigned int to); + +extern unsigned long sm501_set_clock(struct device *dev, + int clksrc, unsigned long freq); + +extern unsigned long sm501_find_clock(struct device *dev, + int clksrc, unsigned long req_freq); + +/* sm501_misc_control + * + * Modify the SM501's MISC_CONTROL register +*/ + +extern int sm501_misc_control(struct device *dev, + unsigned long set, unsigned long clear); + +/* sm501_modify_reg + * + * Modify a register in the SM501 which may be shared with other + * drivers. +*/ + +extern unsigned long sm501_modify_reg(struct device *dev, + unsigned long reg, + unsigned long set, + unsigned long clear); + + +/* Platform data definitions */ + +#define SM501FB_FLAG_USE_INIT_MODE (1<<0) +#define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1) +#define SM501FB_FLAG_USE_HWCURSOR (1<<2) +#define SM501FB_FLAG_USE_HWACCEL (1<<3) +#define SM501FB_FLAG_PANEL_NO_FPEN (1<<4) +#define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5) +#define SM501FB_FLAG_PANEL_INV_FPEN (1<<6) +#define SM501FB_FLAG_PANEL_INV_VBIASEN (1<<7) + +struct sm501_platdata_fbsub { + struct fb_videomode *def_mode; + unsigned int def_bpp; + unsigned long max_mem; + unsigned int flags; +}; + +enum sm501_fb_routing { + SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */ + SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */ +}; + +/* sm501_platdata_fb flag field bit definitions */ + +#define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */ + +/* sm501_platdata_fb + * + * configuration data for the framebuffer driver +*/ + +struct sm501_platdata_fb { + enum sm501_fb_routing fb_route; + unsigned int flags; + struct sm501_platdata_fbsub *fb_crt; + struct sm501_platdata_fbsub *fb_pnl; +}; + +/* gpio i2c + * + * Note, we have to pass in the bus number, as the number used will be + * passed to the i2c-gpio driver's platform_device.id, subsequently used + * to register the i2c bus. +*/ + +struct sm501_platdata_gpio_i2c { + unsigned int bus_num; + unsigned int pin_sda; + unsigned int pin_scl; + int udelay; + int timeout; +}; + +/* sm501_initdata + * + * use for initialising values that may not have been setup + * before the driver is loaded. +*/ + +struct sm501_reg_init { + unsigned long set; + unsigned long mask; +}; + +#define SM501_USE_USB_HOST (1<<0) +#define SM501_USE_USB_SLAVE (1<<1) +#define SM501_USE_SSP0 (1<<2) +#define SM501_USE_SSP1 (1<<3) +#define SM501_USE_UART0 (1<<4) +#define SM501_USE_UART1 (1<<5) +#define SM501_USE_FBACCEL (1<<6) +#define SM501_USE_AC97 (1<<7) +#define SM501_USE_I2S (1<<8) +#define SM501_USE_GPIO (1<<9) + +#define SM501_USE_ALL (0xffffffff) + +struct sm501_initdata { + struct sm501_reg_init gpio_low; + struct sm501_reg_init gpio_high; + struct sm501_reg_init misc_timing; + struct sm501_reg_init misc_control; + + unsigned long devices; + unsigned long mclk; /* non-zero to modify */ + unsigned long m1xclk; /* non-zero to modify */ +}; + +/* sm501_init_gpio + * + * default gpio settings +*/ + +struct sm501_init_gpio { + struct sm501_reg_init gpio_data_low; + struct sm501_reg_init gpio_data_high; + struct sm501_reg_init gpio_ddr_low; + struct sm501_reg_init gpio_ddr_high; +}; + +#define SM501_FLAG_SUSPEND_OFF (1<<4) + +/* sm501_platdata + * + * This is passed with the platform device to allow the board + * to control the behaviour of the SM501 driver(s) which attach + * to the device. + * +*/ + +struct sm501_platdata { + struct sm501_initdata *init; + struct sm501_init_gpio *init_gpiop; + struct sm501_platdata_fb *fb; + + int flags; + int gpio_base; + + int (*get_power)(struct device *dev); + int (*set_power)(struct device *dev, unsigned int on); + + struct sm501_platdata_gpio_i2c *gpio_i2c; + unsigned int gpio_i2c_nr; +}; + +#if defined(CONFIG_PPC32) +#define smc501_readl(addr) ioread32be((addr)) +#define smc501_writel(val, addr) iowrite32be((val), (addr)) +#else +#define smc501_readl(addr) readl(addr) +#define smc501_writel(val, addr) writel(val, addr) +#endif |