diff options
Diffstat (limited to 'include/asm-arm/arch-pxa/mfp.h')
| -rw-r--r-- | include/asm-arm/arch-pxa/mfp.h | 409 |
1 files changed, 68 insertions, 341 deletions
diff --git a/include/asm-arm/arch-pxa/mfp.h b/include/asm-arm/arch-pxa/mfp.h index 03c508d94f0e..02f6157396d3 100644 --- a/include/asm-arm/arch-pxa/mfp.h +++ b/include/asm-arm/arch-pxa/mfp.h @@ -16,9 +16,6 @@ #ifndef __ASM_ARCH_MFP_H #define __ASM_ARCH_MFP_H -#define MFPR_BASE (0x40e10000) -#define MFPR_SIZE (PAGE_SIZE) - #define mfp_to_gpio(m) ((m) % 128) /* list of all the configurable MFP pins */ @@ -217,114 +214,21 @@ enum { }; /* - * Table that determines the low power modes outputs, with actual settings - * used in parentheses for don't-care values. Except for the float output, - * the configured driven and pulled levels match, so if there is a need for - * non-LPM pulled output, the same configuration could probably be used. - * - * Output value sleep_oe_n sleep_data pullup_en pulldown_en pull_sel - * (bit 7) (bit 8) (bit 14d) (bit 13d) - * - * Drive 0 0 0 0 X (1) 0 - * Drive 1 0 1 X (1) 0 0 - * Pull hi (1) 1 X(1) 1 0 0 - * Pull lo (0) 1 X(0) 0 1 0 - * Z (float) 1 X(0) 0 0 0 - */ -#define MFP_LPM_DRIVE_LOW 0x8 -#define MFP_LPM_DRIVE_HIGH 0x6 -#define MFP_LPM_PULL_HIGH 0x7 -#define MFP_LPM_PULL_LOW 0x9 -#define MFP_LPM_FLOAT 0x1 -#define MFP_LPM_PULL_NEITHER 0x0 - -/* - * The pullup and pulldown state of the MFP pin is by default determined by - * selected alternate function. In case some buggy devices need to override - * this default behavior, pxa3xx_mfp_set_pull() can be invoked with one of - * the following definition as the parameter. - * - * Definition pull_sel pullup_en pulldown_en - * MFP_PULL_HIGH 1 1 0 - * MFP_PULL_LOW 1 0 1 - * MFP_PULL_BOTH 1 1 1 - * MFP_PULL_NONE 1 0 0 - * MFP_PULL_DEFAULT 0 X X - * - * NOTE: pxa3xx_mfp_set_pull() will modify the PULLUP_EN and PULLDOWN_EN - * bits, which will cause potential conflicts with the low power mode - * setting, device drivers should take care of this - */ -#define MFP_PULL_BOTH (0x7u) -#define MFP_PULL_HIGH (0x6u) -#define MFP_PULL_LOW (0x5u) -#define MFP_PULL_NONE (0x4u) -#define MFP_PULL_DEFAULT (0x0u) - -#define MFP_AF0 (0) -#define MFP_AF1 (1) -#define MFP_AF2 (2) -#define MFP_AF3 (3) -#define MFP_AF4 (4) -#define MFP_AF5 (5) -#define MFP_AF6 (6) -#define MFP_AF7 (7) - -#define MFP_DS01X (0) -#define MFP_DS02X (1) -#define MFP_DS03X (2) -#define MFP_DS04X (3) -#define MFP_DS06X (4) -#define MFP_DS08X (5) -#define MFP_DS10X (6) -#define MFP_DS12X (7) - -#define MFP_EDGE_BOTH 0x3 -#define MFP_EDGE_RISE 0x2 -#define MFP_EDGE_FALL 0x1 -#define MFP_EDGE_NONE 0x0 - -#define MFPR_AF_MASK 0x0007 -#define MFPR_DRV_MASK 0x1c00 -#define MFPR_RDH_MASK 0x0200 -#define MFPR_LPM_MASK 0xe180 -#define MFPR_PULL_MASK 0xe000 -#define MFPR_EDGE_MASK 0x0070 - -#define MFPR_ALT_OFFSET 0 -#define MFPR_ERE_OFFSET 4 -#define MFPR_EFE_OFFSET 5 -#define MFPR_EC_OFFSET 6 -#define MFPR_SON_OFFSET 7 -#define MFPR_SD_OFFSET 8 -#define MFPR_SS_OFFSET 9 -#define MFPR_DRV_OFFSET 10 -#define MFPR_PD_OFFSET 13 -#define MFPR_PU_OFFSET 14 -#define MFPR_PS_OFFSET 15 - -#define MFPR(af, drv, rdh, lpm, edge) \ - (((af) & 0x7) | (((drv) & 0x7) << 10) |\ - (((rdh) & 0x1) << 9) |\ - (((lpm) & 0x3) << 7) |\ - (((lpm) & 0x4) << 12)|\ - (((lpm) & 0x8) << 10)|\ - ((!(edge)) << 6) |\ - (((edge) & 0x1) << 5) |\ - (((edge) & 0x2) << 3)) - -/* * a possible MFP configuration is represented by a 32-bit integer - * bit 0..15 - MFPR value (16-bit) - * bit 16..31 - mfp pin index (used to obtain the MFPR offset) + * + * bit 0.. 9 - MFP Pin Number (1024 Pins Maximum) + * bit 10..12 - Alternate Function Selection + * bit 13..15 - Drive Strength + * bit 16..18 - Low Power Mode State + * bit 19..20 - Low Power Mode Edge Detection + * bit 21..22 - Run Mode Pull State * * to facilitate the definition, the following macros are provided * - * MFPR_DEFAULT - default MFPR value, with + * MFP_CFG_DEFAULT - default MFP configuration value, with * alternate function = 0, - * drive strength = fast 1mA (MFP_DS01X) + * drive strength = fast 3mA (MFP_DS03X) * low power mode = default - * release dalay hold = false (RDH bit) * edge detection = none * * MFP_CFG - default MFPR value with alternate function @@ -334,251 +238,74 @@ enum { * low power mode * MFP_CFG_X - default MFPR value with alternate function, * pin drive strength and low power mode - * - * use - * - * MFP_CFG_PIN - to get the MFP pin index - * MFP_CFG_VAL - to get the corresponding MFPR value */ -typedef uint32_t mfp_cfg_t; - -#define MFP_CFG_PIN(mfp_cfg) (((mfp_cfg) >> 16) & 0xffff) -#define MFP_CFG_VAL(mfp_cfg) ((mfp_cfg) & 0xffff) - -/* - * MFP register defaults to - * drive strength fast 3mA (010'b) - * edge detection logic disabled - * alternate function 0 - */ -#define MFPR_DEFAULT (0x0840) +typedef unsigned long mfp_cfg_t; + +#define MFP_PIN(x) ((x) & 0x3ff) + +#define MFP_AF0 (0x0 << 10) +#define MFP_AF1 (0x1 << 10) +#define MFP_AF2 (0x2 << 10) +#define MFP_AF3 (0x3 << 10) +#define MFP_AF4 (0x4 << 10) +#define MFP_AF5 (0x5 << 10) +#define MFP_AF6 (0x6 << 10) +#define MFP_AF7 (0x7 << 10) +#define MFP_AF_MASK (0x7 << 10) +#define MFP_AF(x) (((x) >> 10) & 0x7) + +#define MFP_DS01X (0x0 << 13) +#define MFP_DS02X (0x1 << 13) +#define MFP_DS03X (0x2 << 13) +#define MFP_DS04X (0x3 << 13) +#define MFP_DS06X (0x4 << 13) +#define MFP_DS08X (0x5 << 13) +#define MFP_DS10X (0x6 << 13) +#define MFP_DS13X (0x7 << 13) +#define MFP_DS_MASK (0x7 << 13) +#define MFP_DS(x) (((x) >> 13) & 0x7) + +#define MFP_LPM_INPUT (0x0 << 16) +#define MFP_LPM_DRIVE_LOW (0x1 << 16) +#define MFP_LPM_DRIVE_HIGH (0x2 << 16) +#define MFP_LPM_PULL_LOW (0x3 << 16) +#define MFP_LPM_PULL_HIGH (0x4 << 16) +#define MFP_LPM_FLOAT (0x5 << 16) +#define MFP_LPM_STATE_MASK (0x7 << 16) +#define MFP_LPM_STATE(x) (((x) >> 16) & 0x7) + +#define MFP_LPM_EDGE_NONE (0x0 << 19) +#define MFP_LPM_EDGE_RISE (0x1 << 19) +#define MFP_LPM_EDGE_FALL (0x2 << 19) +#define MFP_LPM_EDGE_BOTH (0x3 << 19) +#define MFP_LPM_EDGE_MASK (0x3 << 19) +#define MFP_LPM_EDGE(x) (((x) >> 19) & 0x3) + +#define MFP_PULL_NONE (0x0 << 21) +#define MFP_PULL_LOW (0x1 << 21) +#define MFP_PULL_HIGH (0x2 << 21) +#define MFP_PULL_BOTH (0x3 << 21) +#define MFP_PULL_MASK (0x3 << 21) +#define MFP_PULL(x) (((x) >> 21) & 0x3) + +#define MFP_CFG_DEFAULT (MFP_AF0 | MFP_DS03X | MFP_LPM_INPUT |\ + MFP_LPM_EDGE_NONE | MFP_PULL_NONE) #define MFP_CFG(pin, af) \ - ((MFP_PIN_##pin << 16) | MFPR_DEFAULT | (MFP_##af)) + ((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af)) #define MFP_CFG_DRV(pin, af, drv) \ - ((MFP_PIN_##pin << 16) | (MFPR_DEFAULT & ~MFPR_DRV_MASK) |\ - ((MFP_##drv) << 10) | (MFP_##af)) + ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv)) #define MFP_CFG_LPM(pin, af, lpm) \ - ((MFP_PIN_##pin << 16) | (MFPR_DEFAULT & ~MFPR_LPM_MASK) |\ - (((MFP_LPM_##lpm) & 0x3) << 7) |\ - (((MFP_LPM_##lpm) & 0x4) << 12) |\ - (((MFP_LPM_##lpm) & 0x8) << 10) |\ - (MFP_##af)) + ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm)) #define MFP_CFG_X(pin, af, drv, lpm) \ - ((MFP_PIN_##pin << 16) |\ - (MFPR_DEFAULT & ~(MFPR_DRV_MASK | MFPR_LPM_MASK)) |\ - ((MFP_##drv) << 10) | (MFP_##af) |\ - (((MFP_LPM_##lpm) & 0x3) << 7) |\ - (((MFP_LPM_##lpm) & 0x4) << 12) |\ - (((MFP_LPM_##lpm) & 0x8) << 10)) - -/* common MFP configurations - processor specific ones defined - * in mfp-pxa3xx.h - */ -#define GPIO0_GPIO MFP_CFG(GPIO0, AF0) -#define GPIO1_GPIO MFP_CFG(GPIO1, AF0) -#define GPIO2_GPIO MFP_CFG(GPIO2, AF0) -#define GPIO3_GPIO MFP_CFG(GPIO3, AF0) -#define GPIO4_GPIO MFP_CFG(GPIO4, AF0) -#define GPIO5_GPIO MFP_CFG(GPIO5, AF0) -#define GPIO6_GPIO MFP_CFG(GPIO6, AF0) -#define GPIO7_GPIO MFP_CFG(GPIO7, AF0) -#define GPIO8_GPIO MFP_CFG(GPIO8, AF0) -#define GPIO9_GPIO MFP_CFG(GPIO9, AF0) -#define GPIO10_GPIO MFP_CFG(GPIO10, AF0) -#define GPIO11_GPIO MFP_CFG(GPIO11, AF0) -#define GPIO12_GPIO MFP_CFG(GPIO12, AF0) -#define GPIO13_GPIO MFP_CFG(GPIO13, AF0) -#define GPIO14_GPIO MFP_CFG(GPIO14, AF0) -#define GPIO15_GPIO MFP_CFG(GPIO15, AF0) -#define GPIO16_GPIO MFP_CFG(GPIO16, AF0) -#define GPIO17_GPIO MFP_CFG(GPIO17, AF0) -#define GPIO18_GPIO MFP_CFG(GPIO18, AF0) -#define GPIO19_GPIO MFP_CFG(GPIO19, AF0) -#define GPIO20_GPIO MFP_CFG(GPIO20, AF0) -#define GPIO21_GPIO MFP_CFG(GPIO21, AF0) -#define GPIO22_GPIO MFP_CFG(GPIO22, AF0) -#define GPIO23_GPIO MFP_CFG(GPIO23, AF0) -#define GPIO24_GPIO MFP_CFG(GPIO24, AF0) -#define GPIO25_GPIO MFP_CFG(GPIO25, AF0) -#define GPIO26_GPIO MFP_CFG(GPIO26, AF0) -#define GPIO27_GPIO MFP_CFG(GPIO27, AF0) -#define GPIO28_GPIO MFP_CFG(GPIO28, AF0) -#define GPIO29_GPIO MFP_CFG(GPIO29, AF0) -#define GPIO30_GPIO MFP_CFG(GPIO30, AF0) -#define GPIO31_GPIO MFP_CFG(GPIO31, AF0) -#define GPIO32_GPIO MFP_CFG(GPIO32, AF0) -#define GPIO33_GPIO MFP_CFG(GPIO33, AF0) -#define GPIO34_GPIO MFP_CFG(GPIO34, AF0) -#define GPIO35_GPIO MFP_CFG(GPIO35, AF0) -#define GPIO36_GPIO MFP_CFG(GPIO36, AF0) -#define GPIO37_GPIO MFP_CFG(GPIO37, AF0) -#define GPIO38_GPIO MFP_CFG(GPIO38, AF0) -#define GPIO39_GPIO MFP_CFG(GPIO39, AF0) -#define GPIO40_GPIO MFP_CFG(GPIO40, AF0) -#define GPIO41_GPIO MFP_CFG(GPIO41, AF0) -#define GPIO42_GPIO MFP_CFG(GPIO42, AF0) -#define GPIO43_GPIO MFP_CFG(GPIO43, AF0) -#define GPIO44_GPIO MFP_CFG(GPIO44, AF0) -#define GPIO45_GPIO MFP_CFG(GPIO45, AF0) - -#define GPIO47_GPIO MFP_CFG(GPIO47, AF0) -#define GPIO48_GPIO MFP_CFG(GPIO48, AF0) - -#define GPIO53_GPIO MFP_CFG(GPIO53, AF0) -#define GPIO54_GPIO MFP_CFG(GPIO54, AF0) -#define GPIO55_GPIO MFP_CFG(GPIO55, AF0) - -#define GPIO57_GPIO MFP_CFG(GPIO57, AF0) - -#define GPIO63_GPIO MFP_CFG(GPIO63, AF0) -#define GPIO64_GPIO MFP_CFG(GPIO64, AF0) -#define GPIO65_GPIO MFP_CFG(GPIO65, AF0) -#define GPIO66_GPIO MFP_CFG(GPIO66, AF0) -#define GPIO67_GPIO MFP_CFG(GPIO67, AF0) -#define GPIO68_GPIO MFP_CFG(GPIO68, AF0) -#define GPIO69_GPIO MFP_CFG(GPIO69, AF0) -#define GPIO70_GPIO MFP_CFG(GPIO70, AF0) -#define GPIO71_GPIO MFP_CFG(GPIO71, AF0) -#define GPIO72_GPIO MFP_CFG(GPIO72, AF0) -#define GPIO73_GPIO MFP_CFG(GPIO73, AF0) -#define GPIO74_GPIO MFP_CFG(GPIO74, AF0) -#define GPIO75_GPIO MFP_CFG(GPIO75, AF0) -#define GPIO76_GPIO MFP_CFG(GPIO76, AF0) -#define GPIO77_GPIO MFP_CFG(GPIO77, AF0) -#define GPIO78_GPIO MFP_CFG(GPIO78, AF0) -#define GPIO79_GPIO MFP_CFG(GPIO79, AF0) -#define GPIO80_GPIO MFP_CFG(GPIO80, AF0) -#define GPIO81_GPIO MFP_CFG(GPIO81, AF0) -#define GPIO82_GPIO MFP_CFG(GPIO82, AF0) -#define GPIO83_GPIO MFP_CFG(GPIO83, AF0) -#define GPIO84_GPIO MFP_CFG(GPIO84, AF0) -#define GPIO85_GPIO MFP_CFG(GPIO85, AF0) -#define GPIO86_GPIO MFP_CFG(GPIO86, AF0) -#define GPIO87_GPIO MFP_CFG(GPIO87, AF0) -#define GPIO88_GPIO MFP_CFG(GPIO88, AF0) -#define GPIO89_GPIO MFP_CFG(GPIO89, AF0) -#define GPIO90_GPIO MFP_CFG(GPIO90, AF0) -#define GPIO91_GPIO MFP_CFG(GPIO91, AF0) -#define GPIO92_GPIO MFP_CFG(GPIO92, AF0) -#define GPIO93_GPIO MFP_CFG(GPIO93, AF0) -#define GPIO94_GPIO MFP_CFG(GPIO94, AF0) -#define GPIO95_GPIO MFP_CFG(GPIO95, AF0) -#define GPIO96_GPIO MFP_CFG(GPIO96, AF0) -#define GPIO97_GPIO MFP_CFG(GPIO97, AF0) -#define GPIO98_GPIO MFP_CFG(GPIO98, AF0) -#define GPIO99_GPIO MFP_CFG(GPIO99, AF0) -#define GPIO100_GPIO MFP_CFG(GPIO100, AF0) -#define GPIO101_GPIO MFP_CFG(GPIO101, AF0) -#define GPIO102_GPIO MFP_CFG(GPIO102, AF0) -#define GPIO103_GPIO MFP_CFG(GPIO103, AF0) -#define GPIO104_GPIO MFP_CFG(GPIO104, AF0) -#define GPIO105_GPIO MFP_CFG(GPIO105, AF0) -#define GPIO106_GPIO MFP_CFG(GPIO106, AF0) -#define GPIO107_GPIO MFP_CFG(GPIO107, AF0) -#define GPIO108_GPIO MFP_CFG(GPIO108, AF0) -#define GPIO109_GPIO MFP_CFG(GPIO109, AF0) -#define GPIO110_GPIO MFP_CFG(GPIO110, AF0) -#define GPIO111_GPIO MFP_CFG(GPIO111, AF0) -#define GPIO112_GPIO MFP_CFG(GPIO112, AF0) -#define GPIO113_GPIO MFP_CFG(GPIO113, AF0) -#define GPIO114_GPIO MFP_CFG(GPIO114, AF0) -#define GPIO115_GPIO MFP_CFG(GPIO115, AF0) -#define GPIO116_GPIO MFP_CFG(GPIO116, AF0) -#define GPIO117_GPIO MFP_CFG(GPIO117, AF0) -#define GPIO118_GPIO MFP_CFG(GPIO118, AF0) -#define GPIO119_GPIO MFP_CFG(GPIO119, AF0) -#define GPIO120_GPIO MFP_CFG(GPIO120, AF0) -#define GPIO121_GPIO MFP_CFG(GPIO121, AF0) -#define GPIO122_GPIO MFP_CFG(GPIO122, AF0) -#define GPIO123_GPIO MFP_CFG(GPIO123, AF0) -#define GPIO124_GPIO MFP_CFG(GPIO124, AF0) -#define GPIO125_GPIO MFP_CFG(GPIO125, AF0) -#define GPIO126_GPIO MFP_CFG(GPIO126, AF0) -#define GPIO127_GPIO MFP_CFG(GPIO127, AF0) - -#define GPIO0_2_GPIO MFP_CFG(GPIO0_2, AF0) -#define GPIO1_2_GPIO MFP_CFG(GPIO1_2, AF0) -#define GPIO2_2_GPIO MFP_CFG(GPIO2_2, AF0) -#define GPIO3_2_GPIO MFP_CFG(GPIO3_2, AF0) -#define GPIO4_2_GPIO MFP_CFG(GPIO4_2, AF0) -#define GPIO5_2_GPIO MFP_CFG(GPIO5_2, AF0) -#define GPIO6_2_GPIO MFP_CFG(GPIO6_2, AF0) - -/* - * each MFP pin will have a MFPR register, since the offset of the - * register varies between processors, the processor specific code - * should initialize the pin offsets by pxa3xx_mfp_init_addr() - * - * pxa3xx_mfp_init_addr - accepts a table of "pxa3xx_mfp_addr_map" - * structure, which represents a range of MFP pins from "start" to - * "end", with the offset begining at "offset", to define a single - * pin, let "end" = -1 - * - * use - * - * MFP_ADDR_X() to define a range of pins - * MFP_ADDR() to define a single pin - * MFP_ADDR_END to signal the end of pin offset definitions - */ -struct pxa3xx_mfp_addr_map { - unsigned int start; - unsigned int end; - unsigned long offset; -}; - -#define MFP_ADDR_X(start, end, offset) \ - { MFP_PIN_##start, MFP_PIN_##end, offset } - -#define MFP_ADDR(pin, offset) \ - { MFP_PIN_##pin, -1, offset } - -#define MFP_ADDR_END { MFP_PIN_INVALID, 0 } - -struct pxa3xx_mfp_pin { - unsigned long mfpr_off; /* MFPRxx register offset */ - unsigned long mfpr_val; /* MFPRxx register value */ -}; - -/* - * pxa3xx_mfp_read()/pxa3xx_mfp_write() - for direct read/write access - * to the MFPR register - */ -unsigned long pxa3xx_mfp_read(int mfp); -void pxa3xx_mfp_write(int mfp, unsigned long mfpr_val); - -/* - * pxa3xx_mfp_set_afds - set MFP alternate function and drive strength - * pxa3xx_mfp_set_rdh - set MFP release delay hold on/off - * pxa3xx_mfp_set_lpm - set MFP low power mode state - * pxa3xx_mfp_set_edge - set MFP edge detection in low power mode - * - * use these functions to override/change the default configuration - * done by pxa3xx_mfp_set_config(s) - */ -void pxa3xx_mfp_set_afds(int mfp, int af, int ds); -void pxa3xx_mfp_set_rdh(int mfp, int rdh); -void pxa3xx_mfp_set_lpm(int mfp, int lpm); -void pxa3xx_mfp_set_edge(int mfp, int edge); - -/* - * pxa3xx_mfp_config - configure the MFPR registers - * - * used by board specific initialization code - */ -void pxa3xx_mfp_config(mfp_cfg_t *mfp_cfgs, int num); - -/* - * pxa3xx_mfp_init_addr() - initialize the mapping between mfp pin - * index and MFPR register offset - * - * used by processor specific code - */ -void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *); -void __init pxa3xx_init_mfp(void); + ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\ + (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm)) #endif /* __ASM_ARCH_MFP_H */ |