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yaml
---
r: 332801
b: refs/heads/master
c: 7a8a43c
h: refs/heads/master
i:
  332799: 839ad0a
v: v3
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Sonic Zhang authored and Chris Ball committed Sep 4, 2012
1 parent c5dcc7e commit 184d43c
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Showing 2 changed files with 20 additions and 17 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: c5e4a2e4c6fe47d88a1b172e54ed47a463f0ce45
refs/heads/master: 7a8a43c46a4c91475ff93eb00897cbbc5ec98874
35 changes: 19 additions & 16 deletions trunk/drivers/mmc/host/bfin_sdh.c
Original file line number Diff line number Diff line change
Expand Up @@ -505,6 +505,23 @@ static irqreturn_t sdh_stat_irq(int irq, void *devid)
return IRQ_RETVAL(handled);
}

static void sdh_reset(void)
{
#if defined(CONFIG_BF54x)
/* Secure Digital Host shares DMA with Nand controller */
bfin_write_DMAC1_PERIMUX(bfin_read_DMAC1_PERIMUX() | 0x1);
#endif

bfin_write_SDH_CFG(bfin_read_SDH_CFG() | CLKS_EN);
SSYNC();

/* Disable card inserting detection pin. set MMC_CAP_NEEDS_POLL, and
* mmc stack will do the detection.
*/
bfin_write_SDH_CFG((bfin_read_SDH_CFG() & 0x1F) | (PUP_SDDAT | PUP_SDDAT3));
SSYNC();
}

static int __devinit sdh_probe(struct platform_device *pdev)
{
struct mmc_host *mmc;
Expand Down Expand Up @@ -581,19 +598,8 @@ static int __devinit sdh_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "unable to request peripheral pins\n");
goto out4;
}
#if defined(CONFIG_BF54x)
/* Secure Digital Host shares DMA with Nand controller */
bfin_write_DMAC1_PERIMUX(bfin_read_DMAC1_PERIMUX() | 0x1);
#endif

bfin_write_SDH_CFG(bfin_read_SDH_CFG() | CLKS_EN);
SSYNC();

/* Disable card inserting detection pin. set MMC_CAP_NEEDS_POLL, and
* mmc stack will do the detection.
*/
bfin_write_SDH_CFG((bfin_read_SDH_CFG() & 0x1F) | (PUP_SDDAT | PUP_SDDAT3));
SSYNC();
sdh_reset();

mmc_add_host(mmc);
return 0;
Expand Down Expand Up @@ -660,10 +666,7 @@ static int sdh_resume(struct platform_device *dev)
return ret;
}

#if defined(CONFIG_BF54x)
/* Secure Digital Host shares DMA with Nand controller */
bfin_write_DMAC1_PERIMUX(bfin_read_DMAC1_PERIMUX() | 0x1);
#endif
sdh_reset();

if (mmc)
ret = mmc_resume_host(mmc);
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