diff options
Diffstat (limited to 'arch/arm/mach-omap2/mux.h')
| -rw-r--r-- | arch/arm/mach-omap2/mux.h | 70 |
1 files changed, 58 insertions, 12 deletions
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h index 350c04f2738..86549bedd52 100644 --- a/arch/arm/mach-omap2/mux.h +++ b/arch/arm/mach-omap2/mux.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2009 Nokia - * Copyright (C) 2009 Texas Instruments + * Copyright (C) 2009-2010 Texas Instruments * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -56,7 +56,7 @@ #define OMAP_MODE_GPIO(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE4) -/* Flags for omap_mux_init */ +/* Flags for omapX_mux_init */ #define OMAP_PACKAGE_MASK 0xffff #define OMAP_PACKAGE_CBP 6 /* 515-pin 0.40 0.50 */ #define OMAP_PACKAGE_CUS 5 /* 423-pin 0.65 */ @@ -66,14 +66,47 @@ #define OMAP_PACKAGE_ZAF 1 /* 2420 447-pin SIP */ -#define OMAP_MUX_NR_MODES 8 /* Available modes */ -#define OMAP_MUX_NR_SIDES 2 /* Bottom & top */ +#define OMAP_MUX_NR_MODES 8 /* Available modes */ +#define OMAP_MUX_NR_SIDES 2 /* Bottom & top */ + +/* + * omap_mux_init flags definition: + * + * OMAP_MUX_REG_8BIT: Ensure that access to padconf is done in 8 bits. + * The default value is 16 bits. + * OMAP_MUX_GPIO_IN_MODE3: The GPIO is selected in mode3. + * The default is mode4. + */ +#define OMAP_MUX_REG_8BIT (1 << 0) +#define OMAP_MUX_GPIO_IN_MODE3 (1 << 1) + +/** + * struct mux_partition - contain partition related information + * @name: name of the current partition + * @flags: flags specific to this partition + * @phys: physical address + * @size: partition size + * @base: virtual address after ioremap + * @muxmodes: list of nodes that belong to a partition + * @node: list node for the partitions linked list + */ +struct omap_mux_partition { + const char *name; + u32 flags; + u32 phys; + u32 size; + void __iomem *base; + struct list_head muxmodes; + struct list_head node; +}; /** * struct omap_mux - data for omap mux register offset and it's value * @reg_offset: mux register offset from the mux base * @gpio: GPIO number * @muxnames: available signal modes for a ball + * @balls: available balls on the package + * @partition: mux partition */ struct omap_mux { u16 reg_offset; @@ -151,28 +184,39 @@ u16 omap_mux_get_gpio(int gpio); void omap_mux_set_gpio(u16 val, int gpio); /** + * omap_mux_get() - get a mux partition by name + * @name: Name of the mux partition + * + */ +struct omap_mux_partition *omap_mux_get(const char *name); + +/** * omap_mux_read() - read mux register + * @partition: Mux partition * @mux_offset: Offset of the mux register * */ -u16 omap_mux_read(u16 mux_offset); +u16 omap_mux_read(struct omap_mux_partition *p, u16 mux_offset); /** * omap_mux_write() - write mux register + * @partition: Mux partition * @val: New mux register value * @mux_offset: Offset of the mux register * * This should be only needed for dynamic remuxing of non-gpio signals. */ -void omap_mux_write(u16 val, u16 mux_offset); +void omap_mux_write(struct omap_mux_partition *p, u16 val, u16 mux_offset); /** * omap_mux_write_array() - write an array of mux registers + * @partition: Mux partition * @board_mux: Array of mux registers terminated by MAP_MUX_TERMINATOR * * This should be only needed for dynamic remuxing of non-gpio signals. */ -void omap_mux_write_array(struct omap_board_mux *board_mux); +void omap_mux_write_array(struct omap_mux_partition *p, + struct omap_board_mux *board_mux); /** * omap2420_mux_init() - initialize mux system with board specific set @@ -198,8 +242,10 @@ int omap3_mux_init(struct omap_board_mux *board_mux, int flags); /** * omap_mux_init - private mux init function, do not call */ -int omap_mux_init(u32 mux_pbase, u32 mux_size, - struct omap_mux *superset, - struct omap_mux *package_subset, - struct omap_board_mux *board_mux, - struct omap_ball *package_balls); +int omap_mux_init(const char *name, u32 flags, + u32 mux_pbase, u32 mux_size, + struct omap_mux *superset, + struct omap_mux *package_subset, + struct omap_board_mux *board_mux, + struct omap_ball *package_balls); + |