28926d45c9
as taking a register number, and that would get multiplied by 4 to make a register address. But the header file that consumers have to reference this stuff publishes register addresses, not numbers. So now everything works in terms of register addresses. Note that the HDMI init code was writing into the wrong register before this change. Apparently whatever it wrote to was harmless, and apparently HDMI was working because uboot had set up the right bits.
50 lines
2.0 KiB
C
50 lines
2.0 KiB
C
/*-
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* Copyright (c) 2014 Ian Lepore <ian@freebsd.org>
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* All rights reserved.
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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 AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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#ifndef IMX_IOMUXVAR_H
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#define IMX_IOMUXVAR_H
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/*
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* IOMUX interface functions
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*/
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void iomux_set_function(u_int pin, u_int fn);
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void iomux_set_pad(u_int pin, u_int cfg);
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u_int iomux_get_pad_config(u_int pin);
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/*
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* The IOMUX Controller device has a small set of "general purpose registers"
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* which control various aspects of SoC operation that really have nothing to do
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* with IO pin assignments or pad control. These functions let other soc level
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* code manipulate these values.
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*/
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uint32_t imx_iomux_gpr_get(u_int regaddr);
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void imx_iomux_gpr_set(u_int regaddr, uint32_t val);
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void imx_iomux_gpr_set_masked(u_int regaddr, uint32_t clrbits, uint32_t setbits);
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#endif
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