[U-Boot] [PATCH 1/2] mtd: vf610_nfc: mark page as dirty on block erase

[Scott Wood <scottwood@freescale.com>]

On Tue, 2015-03-31 at 00:24 +0200, Stefan Agner wrote:
> Actually, I just realized that the driver is not caching writes.
> 
>      switch (command) {
>      case NAND_CMD_PAGEPROG:
>          nfc->page = -1;
> +        vf610_nfc_transfer_size(nfc->regs, nfc->page_sz);
>          vf610_nfc_send_commands(nfc->regs, NAND_CMD_SEQIN,
>                      command, PROGRAM_PAGE_CMD_CODE);
>          vf610_nfc_addr_cycle(mtd, column, page);
>          break;
> 
> The nfc->page = -1 resets the page cache, so the next read triggers a
> full page read.
>
> I will check the performance consequences when disabling cache entirely,
> and whether it would be possible to implement a OOB only read.

OK.  In the meantime I'll apply this.

-Scott