35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
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/*
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* arch/arm/plat-orion/include/plat/mpp.h
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*
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* Marvell Orion SoC MPP handling.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __PLAT_MPP_H
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#define __PLAT_MPP_H
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#define MPP_NUM(x) ((x) & 0xff)
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#define MPP_SEL(x) (((x) >> 8) & 0xf)
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/* This is the generic MPP macro, without any variant information.
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Each machine architecture is expected to extend this with further
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bit fields indicating which MPP configurations are valid for a
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specific variant. */
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#define GENERIC_MPP(_num, _sel, _in, _out) ( \
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/* MPP number */ ((_num) & 0xff) | \
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/* MPP select value */ (((_sel) & 0xf) << 8) | \
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/* may be input signal */ ((!!(_in)) << 12) | \
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/* may be output signal */ ((!!(_out)) << 13))
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#define MPP_INPUT_MASK GENERIC_MPP(0, 0x0, 1, 0)
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#define MPP_OUTPUT_MASK GENERIC_MPP(0, 0x0, 0, 1)
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void __init orion_mpp_conf(unsigned int *mpp_list, unsigned int variant_mask,
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unsigned int mpp_max, void __iomem *dev_bus);
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#endif
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