diff options
Diffstat (limited to 'arch/arm/mach-omap2/mux.h')
| -rw-r--r-- | arch/arm/mach-omap2/mux.h | 183 |
1 files changed, 165 insertions, 18 deletions
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h index 350c04f2738..d121fb6df4e 100644 --- a/arch/arm/mach-omap2/mux.h +++ b/arch/arm/mach-omap2/mux.h @@ -1,14 +1,12 @@ /* * 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 * published by the Free Software Foundation. */ -#include "mux2420.h" -#include "mux2430.h" #include "mux34xx.h" #define OMAP_MUX_TERMINATOR 0xffff @@ -28,7 +26,7 @@ #define OMAP_PULL_UP (1 << 4) #define OMAP_ALTELECTRICALSEL (1 << 5) -/* 34xx specific mux bit defines */ +/* omap3/4/5 specific mux bit defines */ #define OMAP_INPUT_EN (1 << 8) #define OMAP_OFF_EN (1 << 9) #define OMAP_OFFOUT_EN (1 << 10) @@ -36,6 +34,7 @@ #define OMAP_OFF_PULL_EN (1 << 12) #define OMAP_OFF_PULL_UP (1 << 13) #define OMAP_WAKEUP_EN (1 << 14) +#define OMAP_WAKEUP_EVENT (1 << 15) /* Active pin states */ #define OMAP_PIN_OUTPUT 0 @@ -54,26 +53,80 @@ #define OMAP_PIN_OFF_INPUT_PULLDOWN (OMAP_OFF_EN | OMAP_OFF_PULL_EN) #define OMAP_PIN_OFF_WAKEUPENABLE OMAP_WAKEUP_EN -#define OMAP_MODE_GPIO(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE4) +#define OMAP_MODE_GPIO(partition, x) (((x) & OMAP_MUX_MODE7) == \ + partition->gpio) +#define OMAP_MODE_UART(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE0) -/* 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 */ #define OMAP_PACKAGE_CBB 4 /* 515-pin 0.40 0.50 */ #define OMAP_PACKAGE_CBC 3 /* 515-pin 0.50 0.65 */ -#define OMAP_PACKAGE_ZAC 2 /* 24xx 447-pin POP */ -#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_GPIO_MUX_MODE, bits 0-2: gpio muxing mode, same like pad control + * register which includes values from 0-7. + * OMAP_MUX_REG_8BIT: Ensure that access to padconf is done in 8 bits. + * The default value is 16 bits. + */ +#define OMAP_MUX_GPIO_IN_MODE0 OMAP_MUX_MODE0 +#define OMAP_MUX_GPIO_IN_MODE1 OMAP_MUX_MODE1 +#define OMAP_MUX_GPIO_IN_MODE2 OMAP_MUX_MODE2 +#define OMAP_MUX_GPIO_IN_MODE3 OMAP_MUX_MODE3 +#define OMAP_MUX_GPIO_IN_MODE4 OMAP_MUX_MODE4 +#define OMAP_MUX_GPIO_IN_MODE5 OMAP_MUX_MODE5 +#define OMAP_MUX_GPIO_IN_MODE6 OMAP_MUX_MODE6 +#define OMAP_MUX_GPIO_IN_MODE7 OMAP_MUX_MODE7 +#define OMAP_MUX_REG_8BIT (1 << 3) + +/** + * struct omap_board_data - board specific device data + * @id: instance id + * @flags: additional flags for platform init code + * @pads: array of device specific pads + * @pads_cnt: ARRAY_SIZE() of pads + */ +struct omap_board_data { + int id; + u32 flags; + struct omap_device_pad *pads; + int pads_cnt; +}; + +/** + * struct mux_partition - contain partition related information + * @name: name of the current partition + * @flags: flags specific to this partition + * @gpio: gpio mux mode + * @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 gpio; + 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 */ struct omap_mux { u16 reg_offset; @@ -106,6 +159,39 @@ struct omap_board_mux { u16 value; }; +#define OMAP_DEVICE_PAD_REMUX BIT(1) /* Dynamically remux a pad, + needs enable, idle and off + values */ +#define OMAP_DEVICE_PAD_WAKEUP BIT(0) /* Pad is wake-up capable */ + +/** + * struct omap_device_pad - device specific pad configuration + * @name: signal name + * @flags: pad specific runtime flags + * @enable: runtime value for a pad + * @idle: idle value for a pad + * @off: off value for a pad, defaults to safe mode + * @partition: mux partition + * @mux: mux register + */ +struct omap_device_pad { + char *name; + u8 flags; + u16 enable; + u16 idle; + u16 off; + struct omap_mux_partition *partition; + struct omap_mux *mux; +}; + +struct omap_hwmod_mux_info; + +#define OMAP_MUX_STATIC(signal, mode) \ +{ \ + .name = (signal), \ + .enable = (mode), \ +} + #if defined(CONFIG_OMAP_MUX) /** @@ -122,8 +208,35 @@ int omap_mux_init_gpio(int gpio, int val); */ int omap_mux_init_signal(const char *muxname, int val); +/** + * omap_hwmod_mux_init - initialize hwmod specific mux data + * @bpads: Board specific device signal names + * @nr_pads: Number of signal names for the device + */ +extern struct omap_hwmod_mux_info * +omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads); + +/** + * omap_hwmod_mux - omap hwmod specific pin muxing + * @hmux: Pads for a hwmod + * @state: Desired _HWMOD_STATE + * + * Called only from omap_hwmod.c, do not use. + */ +void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state); + +int omap_mux_get_by_name(const char *muxname, + struct omap_mux_partition **found_partition, + struct omap_mux **found_mux); #else +static inline int omap_mux_get_by_name(const char *muxname, + struct omap_mux_partition **found_partition, + struct omap_mux **found_mux) +{ + return 0; +} + static inline int omap_mux_init_gpio(int gpio, int val) { return 0; @@ -133,6 +246,18 @@ static inline int omap_mux_init_signal(char *muxname, int val) return 0; } +static inline struct omap_hwmod_mux_info * +omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads) +{ + return NULL; +} + +static inline void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state) +{ +} + +static struct omap_board_mux *board_mux __maybe_unused; + #endif /** @@ -151,28 +276,39 @@ 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 @@ -196,10 +332,21 @@ int omap2430_mux_init(struct omap_board_mux *board_mux, int flags); int omap3_mux_init(struct omap_board_mux *board_mux, int flags); /** + * omap4_mux_init() - initialize mux system with board specific set + * @board_subset: Board specific mux table + * @board_wkup_subset: Board specific mux table for wakeup instance + * @flags: OMAP package type used for the board + */ +int omap4_mux_init(struct omap_board_mux *board_subset, + struct omap_board_mux *board_wkup_subset, 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); + |