mirror of https://gitee.com/openkylin/linux.git
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/****************************************************************************/
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/*
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* coldfire.h -- Motorola ColdFire CPU sepecific defines
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*
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* (C) Copyright 1999-2006, Greg Ungerer (gerg@snapgear.com)
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* (C) Copyright 2000, Lineo (www.lineo.com)
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*/
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/****************************************************************************/
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#ifndef coldfire_h
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#define coldfire_h
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/****************************************************************************/
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/*
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* Define master clock frequency. This is essentially done at config
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* time now. No point enumerating dozens of possible clock options
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* here. Also the peripheral clock (bus clock) divide ratio is set
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* at config time too.
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*/
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#ifdef CONFIG_CLOCK_SET
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#define MCF_CLK CONFIG_CLOCK_FREQ
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#define MCF_BUSCLK (CONFIG_CLOCK_FREQ / CONFIG_CLOCK_DIV)
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#else
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#error "Don't know what your ColdFire CPU clock frequency is??"
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#endif
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/*
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* Define the processor support peripherals base address.
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* This is generally setup by the boards start up code.
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*/
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#define MCF_MBAR 0x10000000
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#define MCF_MBAR2 0x80000000
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#if defined(CONFIG_M520x)
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#define MCF_IPSBAR 0xFC000000
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#else
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#define MCF_IPSBAR 0x40000000
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#endif
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#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
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defined(CONFIG_M520x)
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#undef MCF_MBAR
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#define MCF_MBAR MCF_IPSBAR
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#elif defined(CONFIG_M532x)
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#undef MCF_MBAR
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#define MCF_MBAR 0x00000000
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#endif
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/****************************************************************************/
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#endif /* coldfire_h */
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