83 lines
1.5 KiB
C
83 lines
1.5 KiB
C
/*
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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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};
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