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/*
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 * the ``general-purpose'' memory controller.
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 * only works with flash memory.
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 */
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enum {
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	/* syscfg bits */
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	Idlemask	= MASK(2) << 3,
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	Noidle		= 1 << 3,
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	/* config bits */
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	Postnandwrites	= 1<<0,	/* force nand reg. writes to be posted */
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	/* indices of cscfg[].cfg[] */
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	Csctl		= 1 - 1,		/* chip-select signal ctl */
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	Csmap		= 7 - 1,		/* chip-select addr map cfg */
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	/* Csctl bits */
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	Muxadddata	= 1 << 9,
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	Devtypemask	= MASK(2) << 10,
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	Devtypenor	= 0 << 10,
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	Devtypenand	= 2 << 10,
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	Devsizemask	= 1 << 12,
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	Devsize8	= 0 << 12,
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	Devsize16	= 1 << 12,
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	Writesync	= 1 << 27,
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	Readsync	= 1 << 29,
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	/* Csmap bits */
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	Csvalid		= 1 << 6,
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	MB16		= 017 << 8,		/* 16MB size */
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	MB128		= 010 << 8,		/* 128MB size */
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};
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typedef struct Gpmc Gpmc;
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typedef struct Gpmccs Gpmccs;
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/*
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 * configuration for non-dram (e.g., flash) memory
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 */
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struct Gpmc {				/* hw registers */
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	uchar	_pad0[0x10];
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	ulong	syscfg;
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	ulong	syssts;
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	ulong	irqsts;
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	ulong	irqenable;
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	uchar	_pad1[0x40 - 0x20];
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	ulong	tmout_ctl;
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	ulong	erraddr;
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	ulong	errtype;
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	ulong	_pad7;
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	ulong	config;
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	ulong	sts;
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	uchar	_pad2[0x60 - 0x58];
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	/* chip-select config */
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	struct Gpmccs {
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		ulong	cfg[7];
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		ulong	nandcmd;
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		ulong	nandaddr;
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		ulong	nanddata;
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		ulong	_pad6[2];
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	} cscfg[8];
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	/* prefetch */
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	ulong	prefcfg[2];
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	ulong	_pad8;
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	ulong	prefctl;
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	ulong	prefsts;
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	/* ecc */
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	ulong	ecccfg;
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	ulong	eccctl;
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	ulong	eccsize;
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	ulong	eccres[9];
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	uchar	_pad3[0x240 - 0x224];
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	/* bch */
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	ulong	bchres[8][4];
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	uchar	_pad4[0x2d0 - 0x2c0];
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	ulong	bchswdata;
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};