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| author | John Ogness <john.ogness@linutronix.de> | 2010-06-18 18:59:47 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-08-27 00:29:09 +0100 |
| commit | f7b66e5e51d31c45c6039db9a6da7863fb75be1e (patch) | |
| tree | 6bb1e4514804a08c0231a653450dc01d467a4a63 /drivers/mtd | |
| parent | 76be97c1fc945db08aae1f1b746012662d643e97 (diff) | |
| download | linux-f7b66e5e51d31c45c6039db9a6da7863fb75be1e.tar.gz linux-f7b66e5e51d31c45c6039db9a6da7863fb75be1e.tar.bz2 linux-f7b66e5e51d31c45c6039db9a6da7863fb75be1e.zip | |
mxc_nand: Do not do byte accesses to the NFC buffer.
This patch avoids byte access to the NFC buffer. Byte access to the
NFC is not allowed.
The patch is against linux-next 20100618.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/mxc_nand.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index fcf8ceb277d4..26caa01e34a6 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -402,16 +402,16 @@ static void send_read_id_v1_v2(struct mxc_nand_host *host) /* Wait for operation to complete */ wait_op_done(host, true); + memcpy(host->data_buf, host->main_area0, 16); + if (this->options & NAND_BUSWIDTH_16) { - void __iomem *main_buf = host->main_area0; /* compress the ID info */ - writeb(readb(main_buf + 2), main_buf + 1); - writeb(readb(main_buf + 4), main_buf + 2); - writeb(readb(main_buf + 6), main_buf + 3); - writeb(readb(main_buf + 8), main_buf + 4); - writeb(readb(main_buf + 10), main_buf + 5); + host->data_buf[1] = host->data_buf[2]; + host->data_buf[2] = host->data_buf[4]; + host->data_buf[3] = host->data_buf[6]; + host->data_buf[4] = host->data_buf[8]; + host->data_buf[5] = host->data_buf[10]; } - memcpy(host->data_buf, host->main_area0, 16); } static uint16_t get_dev_status_v3(struct mxc_nand_host *host) |