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Commit 09ef90d9 authored by Huang Shijie's avatar Huang Shijie Committed by David Woodhouse
Browse files

mtd: gpmi: fix the wrong DMA command. 



The last DMA command of ECC read page is used to disable the BCH module.
But the original code missed to set the pio[2] which is used to set the
GPMI_HW_GPMI_ECCCTRL register. fix it now.

Signed-off-by: default avatarHuang Shijie <b32955@freescale.com>
Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 6a918bad

drivers/mtd/nand/gpmi-nand/gpmi-lib.c

+2 −1
Original line number Diff line number Diff line
@@ -1061,8 +1061,9 @@ int gpmi_read_page(struct gpmi_nand_data *this, 
		| BF_GPMI_CTRL0_ADDRESS(address)

		| BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);

	pio[1] = 0;

	pio[2] = 0; /* clear GPMI_HW_GPMI_ECCCTRL, disable the BCH. */

	desc = channel->device->device_prep_slave_sg(channel,

				(struct scatterlist *)pio, 2,

				(struct scatterlist *)pio, 3,

				DMA_TRANS_NONE,

				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);

	if (!desc) {