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}
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}
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static uint32_t nand_transfer_data_collect(uint32_t direction)
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static uint32_t nand_transfer_data_collect(uint32_t direction)
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{
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{
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    uint32_t timeout = USEC_TIMER + 20000;
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    uint32_t timeout = USEC_TIMER + 20000;
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    while ((DMAALLST & DMAALLST_DMABUSY3))
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    while (DMAALLST & DMAALLST_DMABUSY3)
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        if (nand_timeout(timeout)) return 1;
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        if (nand_timeout(timeout)) return 1;
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    if (!direction) invalidate_dcache();
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    if (!direction) invalidate_dcache();
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    if (nand_wait_addrdone()) return 1;
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    if (nand_wait_addrdone()) return 1;
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    if (!direction) FMCTRL1 = FMCTRL1_CLEARRFIFO | FMCTRL1_CLEARWFIFO;
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    if (!direction) FMCTRL1 = FMCTRL1_CLEARRFIFO | FMCTRL1_CLEARWFIFO;
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    else FMCTRL1 = FMCTRL1_CLEARRFIFO;
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    else FMCTRL1 = FMCTRL1_CLEARRFIFO;
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    {
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    {
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        if (sparebuffer)
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        if (sparebuffer)
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        {
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        {
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            if (nand_transfer_data(bank, 0, spare, 0x40))
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            if (nand_transfer_data(bank, 0, spare, 0x40))
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                return nand_unlock(1);
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                return nand_unlock(1);
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            if (sparebuffer)
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                memcpy(sparebuffer, spare, 0x800);
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            if (checkempty)
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            if (checkempty)
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                rc = nand_check_empty((uint8_t*)sparebuffer) << 1;
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                rc = nand_check_empty((uint8_t*)sparebuffer) << 1;
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        }
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        }
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        return nand_unlock(rc);
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        return nand_unlock(rc);
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    }
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    }