forked from Minki/linux
ed8a2798f6
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire family members then we will be able to remove the duplicated plaform data and code and use a single setup for all. So modify the ColdFire 532x QSPI addressing so that: . base addresses are absolute (not relative to MBAR peripheral register) . use a common name for IRQs used . move chip select definitions (CS) to appropriate header Signed-off-by: Greg Ungerer <gerg@uclinux.org>
56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/*
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* Definitions for Freescale Coldfire QSPI module
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*
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* Copyright 2010 Steven King <sfking@fdwdc.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef mcfqspi_h
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#define mcfqspi_h
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/**
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* struct mcfqspi_cs_control - chip select control for the coldfire qspi driver
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* @setup: setup the control; allocate gpio's, etc. May be NULL.
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* @teardown: finish with the control; free gpio's, etc. May be NULL.
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* @select: output the signals to select the device. Can not be NULL.
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* @deselect: output the signals to deselect the device. Can not be NULL.
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*
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* The QSPI module has 4 hardware chip selects. We don't use them. Instead
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* platforms are required to supply a mcfqspi_cs_control as a part of the
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* platform data for each QSPI master controller. Only the select and
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* deselect functions are required.
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*/
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struct mcfqspi_cs_control {
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int (*setup)(struct mcfqspi_cs_control *);
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void (*teardown)(struct mcfqspi_cs_control *);
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void (*select)(struct mcfqspi_cs_control *, u8, bool);
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void (*deselect)(struct mcfqspi_cs_control *, u8, bool);
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};
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/**
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* struct mcfqspi_platform_data - platform data for the coldfire qspi driver
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* @bus_num: board specific identifier for this qspi driver.
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* @num_chipselects: number of chip selects supported by this qspi driver.
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* @cs_control: platform dependent chip select control.
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*/
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struct mcfqspi_platform_data {
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s16 bus_num;
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u16 num_chipselect;
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struct mcfqspi_cs_control *cs_control;
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};
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#endif /* mcfqspi_h */
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