dm814x.h (1277B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * This header provides constants specific to DM814X pinctrl bindings. 4 */ 5 6#ifndef _DT_BINDINGS_PINCTRL_DM814X_H 7#define _DT_BINDINGS_PINCTRL_DM814X_H 8 9#include <dt-bindings/pinctrl/omap.h> 10 11#undef INPUT_EN 12#undef PULL_UP 13#undef PULL_ENA 14 15/* 16 * Note that dm814x silicon revision 2.1 and older require input enabled 17 * (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage. For 18 * more info, see errata advisory 2.1.87. We leave bit 18 out of 19 * function-mask in dm814x.h and rely on the bootloader for it. 20 */ 21#define INPUT_EN (1 << 18) 22#define PULL_UP (1 << 17) 23#define PULL_DISABLE (1 << 16) 24 25/* update macro depending on INPUT_EN and PULL_ENA */ 26#undef PIN_OUTPUT 27#undef PIN_OUTPUT_PULLUP 28#undef PIN_OUTPUT_PULLDOWN 29#undef PIN_INPUT 30#undef PIN_INPUT_PULLUP 31#undef PIN_INPUT_PULLDOWN 32 33#define PIN_OUTPUT (PULL_DISABLE) 34#define PIN_OUTPUT_PULLUP (PULL_UP) 35#define PIN_OUTPUT_PULLDOWN 0 36#define PIN_INPUT (INPUT_EN | PULL_DISABLE) 37#define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP) 38#define PIN_INPUT_PULLDOWN (INPUT_EN) 39 40/* undef non-existing modes */ 41#undef PIN_OFF_NONE 42#undef PIN_OFF_OUTPUT_HIGH 43#undef PIN_OFF_OUTPUT_LOW 44#undef PIN_OFF_INPUT_PULLUP 45#undef PIN_OFF_INPUT_PULLDOWN 46#undef PIN_OFF_WAKEUPENABLE 47 48#endif 49