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