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72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/* $NetBSD: imx51_i2c.c,v 1.2 2015/03/27 05:31:23 hkenken Exp $ */
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/*
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* Copyright (c) 2012, 2015 Genetec Corporation. All rights reserved.
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* Written by Hashimoto Kenichi for Genetec Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: imx51_i2c.c,v 1.2 2015/03/27 05:31:23 hkenken Exp $");
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#include "opt_imx.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <arm/imx/imx51reg.h>
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#include <arm/imx/imx51var.h>
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#include <arm/imx/imx51_ccmvar.h>
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#include <arm/imx/imxi2cvar.h>
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int
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imxi2c_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct axi_attach_args *aa = aux;
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switch (aa->aa_addr) {
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case I2C1_BASE:
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case I2C2_BASE:
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#ifdef IMX50
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case I2C3_BASE:
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#endif
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return 1;
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}
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return 0;
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}
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void
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imxi2c_attach(device_t parent, device_t self, void *aux)
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{
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struct axi_attach_args * aa = aux;
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if (aa->aa_size <= 0)
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aa->aa_size = I2C_SIZE;
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imxi2c_set_freq(self, imx51_get_clock(IMX51CLK_PERCLK_ROOT), 400000);
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imxi2c_attach_common(parent, self,
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aa->aa_iot, aa->aa_addr, aa->aa_size, aa->aa_irq, 0);
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}
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