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authorAllen Martin <amartin@nvidia.com>2012-08-31 08:30:00 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:21 +0200
commit00a2749d7be5b0e6cb6435187ec8fea600b44627 (patch)
tree3d3107a9b369a09ba5c40abff80d23788939b48d /arch/arm/include/asm/arch-tegra20/funcmux.h
parent0d04f34a357d004364b58159b64aad354e65137e (diff)
downloadtalos-obmc-uboot-00a2749d7be5b0e6cb6435187ec8fea600b44627.tar.gz
talos-obmc-uboot-00a2749d7be5b0e6cb6435187ec8fea600b44627.zip
tegra20: rename tegra2 -> tegra20
This is make naming consistent with the kernel and devicetree and in preparation of pulling out the common tegra20 code. Signed-off-by: Allen Martin <amartin@nvidia.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/include/asm/arch-tegra20/funcmux.h')
-rw-r--r--arch/arm/include/asm/arch-tegra20/funcmux.h79
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
new file mode 100644
index 0000000000..258f7b641a
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/funcmux.h
@@ -0,0 +1,79 @@
+/*
+ * 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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