diff options
| author | Jaehoon Chung <jh80.chung@samsung.com> | 2013-03-26 21:36:14 +0900 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-04-04 10:08:37 -0400 |
| commit | 4366dcc52a43746066e43c3eb8b3c5e0cca2e6f6 (patch) | |
| tree | 7b7bdf457d8c1578b2d7c3e38d619ca5ef279089 /drivers | |
| parent | e065162ae476f55376ba06f9e80f41b28f769938 (diff) | |
mmc: dw_mmc: control the power-enable register
When card is power-on/off, need to control the power-enable register.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 753c55c20c54..c6caedc2e847 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -821,11 +821,17 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* Power up slot */ if (slot->host->pdata->setpower) slot->host->pdata->setpower(slot->id, mmc->ocr_avail); + regs = mci_readl(slot->host, PWREN); + regs |= (1 << slot->id); + mci_writel(slot->host, PWREN, regs); break; case MMC_POWER_OFF: /* Power down slot */ if (slot->host->pdata->setpower) slot->host->pdata->setpower(slot->id, 0); + regs = mci_readl(slot->host, PWREN); + regs &= ~(1 << slot->id); + mci_writel(slot->host, PWREN, regs); break; default: break; |