1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * This header provides constants specific to DM814X pinctrl bindings. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _DT_BINDINGS_PINCTRL_DM814X_H 7*4882a593Smuzhiyun #define _DT_BINDINGS_PINCTRL_DM814X_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <dt-bindings/pinctrl/omap.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #undef INPUT_EN 12*4882a593Smuzhiyun #undef PULL_UP 13*4882a593Smuzhiyun #undef PULL_ENA 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * Note that dm814x silicon revision 2.1 and older require input enabled 17*4882a593Smuzhiyun * (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage. For 18*4882a593Smuzhiyun * more info, see errata advisory 2.1.87. We leave bit 18 out of 19*4882a593Smuzhiyun * function-mask in dm814x.h and rely on the bootloader for it. 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun #define INPUT_EN (1 << 18) 22*4882a593Smuzhiyun #define PULL_UP (1 << 17) 23*4882a593Smuzhiyun #define PULL_DISABLE (1 << 16) 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /* update macro depending on INPUT_EN and PULL_ENA */ 26*4882a593Smuzhiyun #undef PIN_OUTPUT 27*4882a593Smuzhiyun #undef PIN_OUTPUT_PULLUP 28*4882a593Smuzhiyun #undef PIN_OUTPUT_PULLDOWN 29*4882a593Smuzhiyun #undef PIN_INPUT 30*4882a593Smuzhiyun #undef PIN_INPUT_PULLUP 31*4882a593Smuzhiyun #undef PIN_INPUT_PULLDOWN 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define PIN_OUTPUT (PULL_DISABLE) 34*4882a593Smuzhiyun #define PIN_OUTPUT_PULLUP (PULL_UP) 35*4882a593Smuzhiyun #define PIN_OUTPUT_PULLDOWN 0 36*4882a593Smuzhiyun #define PIN_INPUT (INPUT_EN | PULL_DISABLE) 37*4882a593Smuzhiyun #define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP) 38*4882a593Smuzhiyun #define PIN_INPUT_PULLDOWN (INPUT_EN) 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun /* undef non-existing modes */ 41*4882a593Smuzhiyun #undef PIN_OFF_NONE 42*4882a593Smuzhiyun #undef PIN_OFF_OUTPUT_HIGH 43*4882a593Smuzhiyun #undef PIN_OFF_OUTPUT_LOW 44*4882a593Smuzhiyun #undef PIN_OFF_INPUT_PULLUP 45*4882a593Smuzhiyun #undef PIN_OFF_INPUT_PULLDOWN 46*4882a593Smuzhiyun #undef PIN_OFF_WAKEUPENABLE 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun #endif 49*4882a593Smuzhiyun 50