Home | History | Annotate | Line # | Download | only in pinctrl 
      1      1.1  jmcneill /*	$NetBSD: dm814x.h,v 1.1.1.2 2017/11/30 19:40:51 jmcneill Exp $	*/
      2      1.1  jmcneill 
      3  1.1.1.2  jmcneill /* SPDX-License-Identifier: GPL-2.0 */
      4      1.1  jmcneill /*
      5      1.1  jmcneill  * This header provides constants specific to DM814X pinctrl bindings.
      6      1.1  jmcneill  */
      7      1.1  jmcneill 
      8      1.1  jmcneill #ifndef _DT_BINDINGS_PINCTRL_DM814X_H
      9      1.1  jmcneill #define _DT_BINDINGS_PINCTRL_DM814X_H
     10      1.1  jmcneill 
     11      1.1  jmcneill #include <dt-bindings/pinctrl/omap.h>
     12      1.1  jmcneill 
     13      1.1  jmcneill #undef INPUT_EN
     14      1.1  jmcneill #undef PULL_UP
     15      1.1  jmcneill #undef PULL_ENA
     16      1.1  jmcneill 
     17      1.1  jmcneill /*
     18      1.1  jmcneill  * Note that dm814x silicon revision 2.1 and older require input enabled
     19      1.1  jmcneill  * (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage. For
     20      1.1  jmcneill  * more info, see errata advisory 2.1.87. We leave bit 18 out of
     21      1.1  jmcneill  * function-mask in dm814x.h and rely on the bootloader for it.
     22      1.1  jmcneill  */
     23      1.1  jmcneill #define INPUT_EN		(1 << 18)
     24      1.1  jmcneill #define PULL_UP			(1 << 17)
     25      1.1  jmcneill #define PULL_DISABLE		(1 << 16)
     26      1.1  jmcneill 
     27      1.1  jmcneill /* update macro depending on INPUT_EN and PULL_ENA */
     28      1.1  jmcneill #undef PIN_OUTPUT
     29      1.1  jmcneill #undef PIN_OUTPUT_PULLUP
     30      1.1  jmcneill #undef PIN_OUTPUT_PULLDOWN
     31      1.1  jmcneill #undef PIN_INPUT
     32      1.1  jmcneill #undef PIN_INPUT_PULLUP
     33      1.1  jmcneill #undef PIN_INPUT_PULLDOWN
     34      1.1  jmcneill 
     35      1.1  jmcneill #define PIN_OUTPUT		(PULL_DISABLE)
     36      1.1  jmcneill #define PIN_OUTPUT_PULLUP	(PULL_UP)
     37      1.1  jmcneill #define PIN_OUTPUT_PULLDOWN	0
     38      1.1  jmcneill #define PIN_INPUT		(INPUT_EN | PULL_DISABLE)
     39      1.1  jmcneill #define PIN_INPUT_PULLUP	(INPUT_EN | PULL_UP)
     40      1.1  jmcneill #define PIN_INPUT_PULLDOWN	(INPUT_EN)
     41      1.1  jmcneill 
     42      1.1  jmcneill /* undef non-existing modes */
     43      1.1  jmcneill #undef PIN_OFF_NONE
     44      1.1  jmcneill #undef PIN_OFF_OUTPUT_HIGH
     45      1.1  jmcneill #undef PIN_OFF_OUTPUT_LOW
     46      1.1  jmcneill #undef PIN_OFF_INPUT_PULLUP
     47      1.1  jmcneill #undef PIN_OFF_INPUT_PULLDOWN
     48      1.1  jmcneill #undef PIN_OFF_WAKEUPENABLE
     49      1.1  jmcneill 
     50      1.1  jmcneill #endif
     51      1.1  jmcneill 
     52