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- /*
- * Copyright (c) 2011 The Chromium OS Authors.
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
- /* Tegra20 high-level function multiplexing */
- #ifndef __FUNCMUX_H
- #define __FUNCMUX_H
- /* Configs supported by the func mux */
- enum {
- FUNCMUX_DEFAULT = 0, /* default config */
- /* UART configs */
- FUNCMUX_UART1_IRRX_IRTX = 0,
- FUNCMUX_UART1_UAA_UAB,
- FUNCMUX_UART1_GPU,
- FUNCMUX_UART1_SDIO1,
- FUNCMUX_UART2_IRDA = 0,
- FUNCMUX_UART4_GMC = 0,
- /* I2C configs */
- FUNCMUX_DVC_I2CP = 0,
- FUNCMUX_I2C1_RM = 0,
- FUNCMUX_I2C2_DDC = 0,
- FUNCMUX_I2C2_PTA,
- FUNCMUX_I2C3_DTF = 0,
- /* SDMMC configs */
- FUNCMUX_SDMMC1_SDIO1_4BIT = 0,
- FUNCMUX_SDMMC2_DTA_DTD_8BIT = 0,
- FUNCMUX_SDMMC3_SDB_4BIT = 0,
- FUNCMUX_SDMMC3_SDB_SLXA_8BIT,
- FUNCMUX_SDMMC4_ATC_ATD_8BIT = 0,
- FUNCMUX_SDMMC4_ATB_GMA_4_BIT,
- FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT,
- /* USB configs */
- FUNCMUX_USB2_ULPI = 0,
- /* Serial Flash configs */
- FUNCMUX_SPI1_GMC_GMD = 0,
- };
- /**
- * 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
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