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Diffstat (limited to 'src/soc/qualcomm/ipq806x/gpio.c')
-rw-r--r--src/soc/qualcomm/ipq806x/gpio.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/src/soc/qualcomm/ipq806x/gpio.c b/src/soc/qualcomm/ipq806x/gpio.c
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index 0000000000..6e4140e4f1
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+++ b/src/soc/qualcomm/ipq806x/gpio.c
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+/*
+ * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google, Inc. nor the names of its contributors
+ * may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <asm/arch-ipq806x/iomap.h>
+#include <asm/arch-ipq806x/gpio.h>
+#include <asm/io.h>
+
+/*******************************************************
+Function description: configure GPIO functinality
+Arguments :
+unsigned int gpio - Gpio number
+unsigned int func - Functionality number
+unsigned int dir - direction 0- i/p, 1- o/p
+unsigned int pull - pull up/down, no pull range(0-3)
+unsigned int drvstr - range (0 - 7)-> (2- 16)MA steps of 2
+unsigned int enable - 1 - Disable, 2- Enable.
+
+Return : None
+*******************************************************/
+
+
+void gpio_tlmm_config(unsigned int gpio, unsigned int func,
+ unsigned int dir, unsigned int pull,
+ unsigned int drvstr, unsigned int enable)
+{
+ unsigned int val = 0;
+ val |= pull;
+ val |= func << 2;
+ val |= drvstr << 6;
+ val |= enable << 9;
+ unsigned int *addr = (unsigned int *)GPIO_CONFIG_ADDR(gpio);
+ writel(val, addr);
+ return;
+}
+