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