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i.MX28: Check if WP detection is implemented at all

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If the WP function is NULL, simply assume the card is always RW.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2012-05-01 11:09:52 +00:00 committed by Albert ARIBAUD
parent 7dec1bd11f
commit c7527b70f9
1 changed files with 2 additions and 1 deletions
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3
drivers/mmc/mxsmmc.c
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@ -133,7 +133,8 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
/* READ or WRITE */
if (data->flags & MMC_DATA_READ) {
ctrl0 |= SSP_CTRL0_READ;
} else if (priv->mmc_is_wp(mmc->block_dev.dev)) {
} else if (priv->mmc_is_wp &&
priv->mmc_is_wp(mmc->block_dev.dev)) {
printf("MMC%d: Can not write a locked card!\n",
mmc->block_dev.dev);
return UNUSABLE_ERR;