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mtd: nand: pxa3xx: Allow to set/clear the 'spare enable' field
Some commands (such as the ONFI parameter page read) need to clear the 'spare enable' bit. This commit allows to set/clear depending on the prepared command, instead of having it always set. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Tested-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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1 changed files with 7 additions and 0 deletions
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@ -185,6 +185,7 @@ struct pxa3xx_nand_info {
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int cs;
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int use_ecc; /* use HW ECC ? */
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int use_dma; /* use DMA ? */
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int use_spare; /* use spare ? */
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int is_ready;
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unsigned int page_size; /* page size of attached chip */
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@ -325,6 +326,11 @@ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
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else
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ndcr &= ~NDCR_DMA_EN;
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if (info->use_spare)
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ndcr |= NDCR_SPARE_EN;
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else
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ndcr &= ~NDCR_SPARE_EN;
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ndcr |= NDCR_ND_RUN;
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/* clear status bits and run */
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@ -526,6 +532,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
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info->buf_count = 0;
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info->oob_size = 0;
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info->use_ecc = 0;
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info->use_spare = 1;
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info->use_dma = (use_dma) ? 1 : 0;
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info->is_ready = 0;
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info->retcode = ERR_NONE;
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