Lines Matching +full:driving +full:- +full:level
7 MFP stands for Multi-Function Pin, which is the pin-mux logic on PXA3xx and
15 mechanism is introduced from PXA3xx to completely move the pin-mux functions
16 out of the GPIO controller. In addition to pin-mux configurations, the MFP
17 also controls the low power state, driving strength, pull-up/down and event
21 +--------+
22 | |--(GPIO19)--+
24 | |--(GPIO...) |
25 +--------+ |
26 | +---------+
27 +--------+ +------>| |
28 | PWM2 |--(PWM_OUT)-------->| MFP |
29 +--------+ +------>| |-------> to external PAD
30 | +---->| |
31 +--------+ | | +-->| |
32 | SSP2 |---(TXD)----+ | | +---------+
33 +--------+ | |
35 +--------+ | |
36 | Keypad |--(MKOUT4)----+ |
37 +--------+ |
39 +--------+ |
40 | UART2 |---(TXD)--------+
41 +--------+
54 see arch/arm/mach-pxa/mfp-pxa300.h)
57 the remaining functions are pure GPIO-specific, i.e.
59 - GPIO signal level control
60 - GPIO direction control
61 - GPIO level change detection
68 (as defined in pxa3xx-regs.h) controls the wakeup from MFP
81 - #include "mfp-pxa25x.h"
82 - #include "mfp-pxa27x.h"
83 - #include "mfp-pxa300.h"
84 - #include "mfp-pxa320.h"
85 - #include "mfp-pxa930.h"
97 covered in a single mfp-pxa300.h.
105 /* LCD - 16bpp Active TFT */
137 WAKEUP_ON_LEVEL_HIGH - specifically for enabling of keypad GPIOs,
139 to indicate that this pin has the capability of wake-up the system,
161 +-------------------------+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
162 | RESERVED |PS|PU|PD| DRIVE |SS|SD|SO|EC|EF|ER|--| AF_SEL |
163 +-------------------------+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
166 Bit 4: EDGE_RISE_EN - enable detection of rising edge on this pin
167 Bit 5: EDGE_FALL_EN - enable detection of falling edge on this pin
168 Bit 6: EDGE_CLEAR - disable edge detection on this pin
169 Bit 7: SLEEP_OE_N - enable outputs during low power modes
170 Bit 8: SLEEP_DATA - output data on the pin during low power modes
171 Bit 9: SLEEP_SEL - selection control for low power modes signals
172 Bit 13: PULLDOWN_EN - enable the internal pull-down resistor on this pin
173 Bit 14: PULLUP_EN - enable the internal pull-up resistor on this pin
174 Bit 15: PULL_SEL - pull state controlled by selected alternate function
177 Bit 0 - 2: AF_SEL - alternate function selection, 8 possibilities, from 0-7
178 Bit 10-12: DRIVE - drive strength and slew rate
179 0b000 - fast 1mA
180 0b001 - fast 2mA
181 0b002 - fast 3mA
182 0b003 - fast 4mA
183 0b004 - slow 6mA
184 0b005 - fast 6mA
185 0b006 - slow 10mA
186 0b007 - fast 10mA
191 Due to the difference of pin-mux handling between PXA2xx and PXA3xx, a unified
197 make them effective there-after.
200 --------------
202 - arch/arm/mach-pxa/include/mach/mfp.h
205 1. Unified pin definitions - enum constants for all configurable pins
206 2. processor-neutral bit definitions for a possible MFP configuration
208 - arch/arm/mach-pxa/mfp-pxa3xx.h
213 - arch/arm/mach-pxa/mfp-pxa2xx.h
217 - arch/arm/mach-pxa/mfp-pxa25x.h
218 arch/arm/mach-pxa/mfp-pxa27x.h
219 arch/arm/mach-pxa/mfp-pxa300.h
220 arch/arm/mach-pxa/mfp-pxa320.h
221 arch/arm/mach-pxa/mfp-pxa930.h
225 - arch/arm/mach-pxa/mfp-pxa3xx.c
226 - arch/arm/mach-pxa/mfp-pxa2xx.c
232 -----------------
238 * a possible MFP configuration is represented by a 32-bit integer
240 * bit 0.. 9 - MFP Pin Number (1024 Pins Maximum)
241 * bit 10..12 - Alternate Function Selection
242 * bit 13..15 - Drive Strength
243 * bit 16..18 - Low Power Mode State
244 * bit 19..20 - Low Power Mode Edge Detection
245 * bit 21..22 - Run Mode Pull State
249 * MFP_CFG_DEFAULT - default MFP configuration value, with
255 * MFP_CFG - default MFPR value with alternate function
256 * MFP_CFG_DRV - default MFPR value with alternate function and
258 * MFP_CFG_LPM - default MFPR value with alternate function and
260 * MFP_CFG_X - default MFPR value with alternate function,
269 selection of 1, driving strength of 0b101, and a float state in low power
278 -----------------
281 straight-forward, most bits can be converted directly into MFPR value
282 in a easier way. Two sets of MFPR values are calculated: the run-time
288 mfp-pxa2xx.c for how the conversion is made.