Diffstat (limited to 'arch/arm/include/asm/arch-tegra20/funcmux.h')
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra20/funcmux.h b/arch/arm/include/asm/arch-tegra20/funcmux.h
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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 */
+/* Configs supported by the func mux */
+ FUNCMUX_DEFAULT = 0, /* default config */
+ /* UART configs */
+ FUNCMUX_UART1_IRRX_IRTX = 0,
+ FUNCMUX_UART2_IRDA = 0,
+ FUNCMUX_UART4_GMC = 0,
+ /* I2C configs */
+ FUNCMUX_DVC_I2CP = 0,
+ FUNCMUX_I2C1_RM = 0,
+ FUNCMUX_I2C2_DDC = 0,
+ FUNCMUX_I2C3_DTF = 0,
+ /* SDMMC configs */
+ FUNCMUX_SDMMC1_SDIO1_4BIT = 0,
+ FUNCMUX_SDMMC2_DTA_DTD_8BIT = 0,
+ FUNCMUX_SDMMC3_SDB_4BIT = 0,
+ FUNCMUX_SDMMC4_ATC_ATD_8BIT = 0,
+ /* 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);