| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 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 | |