diff options
Diffstat (limited to 'roms/u-boot/arch/arm/include/asm/arch-tegra/funcmux.h')
| -rw-r--r-- | roms/u-boot/arch/arm/include/asm/arch-tegra/funcmux.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/include/asm/arch-tegra/funcmux.h b/roms/u-boot/arch/arm/include/asm/arch-tegra/funcmux.h new file mode 100644 index 000000000..cf3ce3b41 --- /dev/null +++ b/roms/u-boot/arch/arm/include/asm/arch-tegra/funcmux.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. + */ + +/* Tegra high-level function multiplexing */ + +#ifndef _TEGRA_FUNCMUX_H_ +#define _TEGRA_FUNCMUX_H_ + +/** + * Select a config for a particular peripheral. + * + * Each peripheral can operate through a number of configurations, + * which are sets of pins that it uses to bring out its signals. + * The basic config is 0, and higher numbers indicate different + * pinmux settings to bring the peripheral out on other pins, + * + * This function also disables tristate for the function's pins, + * so that they operate in normal mode. + * + * @param id Peripheral id + * @param config Configuration to use (FUNCMUX_...), 0 for default + * @return 0 if ok, -1 on error (e.g. incorrect id or config) + */ +int funcmux_select(enum periph_id id, int config); + +#endif /* _TEGRA_FUNCMUX_H_ */ |