diff options
| -rw-r--r-- | arch/arm/boot/dts/dm814x.dtsi | 2 | ||||
| -rw-r--r-- | include/dt-bindings/pinctrl/dm814x.h | 48 | ||||
| -rw-r--r-- | include/dt-bindings/pinctrl/omap.h | 1 |
3 files changed, 50 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/dm814x.dtsi b/arch/arm/boot/dts/dm814x.dtsi index 09a8d88..ca92346 100644 --- a/arch/arm/boot/dts/dm814x.dtsi +++ b/arch/arm/boot/dts/dm814x.dtsi @@ -5,7 +5,7 @@ */ #include <dt-bindings/gpio/gpio.h> -#include <dt-bindings/pinctrl/omap.h> +#include <dt-bindings/pinctrl/dm814x.h> #include "skeleton.dtsi" diff --git a/include/dt-bindings/pinctrl/dm814x.h b/include/dt-bindings/pinctrl/dm814x.h new file mode 100644 index 0000000..0f48427 --- /dev/null +++ b/include/dt-bindings/pinctrl/dm814x.h @@ -0,0 +1,48 @@ +/* + * This header provides constants specific to DM814X pinctrl bindings. + */ + +#ifndef _DT_BINDINGS_PINCTRL_DM814X_H +#define _DT_BINDINGS_PINCTRL_DM814X_H + +#include <dt-bindings/pinctrl/omap.h> + +#undef INPUT_EN +#undef PULL_UP +#undef PULL_ENA + +/* + * Note that dm814x silicon revision 2.1 and older require input enabled + * (bit 18 set) for all 3.3V I/Os to avoid cumulative hardware damage. For + * more info, see errata advisory 2.1.87. We leave bit 18 out of + * function-mask in dm814x.h and rely on the bootloader for it. + */ +#define INPUT_EN (1 << 18) +#define PULL_UP (1 << 17) +#define PULL_DISABLE (1 << 16) + +/* update macro depending on INPUT_EN and PULL_ENA */ +#undef PIN_OUTPUT +#undef PIN_OUTPUT_PULLUP +#undef PIN_OUTPUT_PULLDOWN +#undef PIN_INPUT +#undef PIN_INPUT_PULLUP +#undef PIN_INPUT_PULLDOWN + +#define PIN_OUTPUT (PULL_DISABLE) +#define PIN_OUTPUT_PULLUP (PULL_UP) +#define PIN_OUTPUT_PULLDOWN 0 +#define PIN_INPUT (INPUT_EN | PULL_DISABLE) +#define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP) +#define PIN_INPUT_PULLDOWN (INPUT_EN) + +/* undef non-existing modes */ +#undef PIN_OFF_NONE +#undef PIN_OFF_OUTPUT_HIGH +#undef PIN_OFF_OUTPUT_LOW +#undef PIN_OFF_INPUT_PULLUP +#undef PIN_OFF_INPUT_PULLDOWN +#undef PIN_OFF_WAKEUPENABLE + +#endif + diff --git a/include/dt-bindings/pinctrl/omap.h b/include/dt-bindings/pinctrl/omap.h index 1394925..d1e1512 100644 --- a/include/dt-bindings/pinctrl/omap.h +++ b/include/dt-bindings/pinctrl/omap.h @@ -61,6 +61,7 @@ #define OMAP3430_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25d8) (val) #define OMAP3630_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25a0) (val) #define OMAP3_WKUP_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2a00) (val) +#define DM814X_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val) #define DM816X_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val) #define AM33XX_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val) #define AM4372_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val) |
