diff options
| author | Otavio Salvador <otavio@ossystems.com.br> | 2013-01-22 15:01:02 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-28 11:43:01 +0100 |
| commit | 8000d8a8260c95727b6357a638a5e80625d7a899 (patch) | |
| tree | 3b1e8902aacb992854decd229a264df125647b41 /drivers | |
| parent | f3801e2b9bd5b86b5d43d10795ebc56cf4d785fa (diff) | |
| download | blackbird-obmc-uboot-8000d8a8260c95727b6357a638a5e80625d7a899.tar.gz blackbird-obmc-uboot-8000d8a8260c95727b6357a638a5e80625d7a899.zip | |
mxs: mmc: Fix MMC reset on iMX23
This does the same reset mask as done in v3.7 Linux kernel code.
The block is properly configured for MMC operation that way.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/mxsmmc.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index 0c4cd54b79..9d71202ef3 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -334,11 +334,17 @@ static int mxsmmc_init(struct mmc *mmc) /* Reset SSP */ mxs_reset_block(&ssp_regs->hw_ssp_ctrl0_reg); - /* 8 bits word length in MMC mode */ - clrsetbits_le32(&ssp_regs->hw_ssp_ctrl1, - SSP_CTRL1_SSP_MODE_MASK | SSP_CTRL1_WORD_LENGTH_MASK | - SSP_CTRL1_DMA_ENABLE, - SSP_CTRL1_SSP_MODE_SD_MMC | SSP_CTRL1_WORD_LENGTH_EIGHT_BITS); + /* Reconfigure the SSP block for MMC operation */ + writel(SSP_CTRL1_SSP_MODE_SD_MMC | + SSP_CTRL1_WORD_LENGTH_EIGHT_BITS | + SSP_CTRL1_DMA_ENABLE | + SSP_CTRL1_POLARITY | + SSP_CTRL1_RECV_TIMEOUT_IRQ_EN | + SSP_CTRL1_DATA_CRC_IRQ_EN | + SSP_CTRL1_DATA_TIMEOUT_IRQ_EN | + SSP_CTRL1_RESP_TIMEOUT_IRQ_EN | + SSP_CTRL1_RESP_ERR_IRQ_EN, + &ssp_regs->hw_ssp_ctrl1_set); /* Set initial bit clock 400 KHz */ mxs_set_ssp_busclock(priv->id, 400); |
