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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 13:46:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 13:46:57 -0700
commit2625b10d8c37656cf410a464ed95942b3abbd1f6 (patch)
treef02fc44aaed07dceed2566b3fdf4dc64b786cb89 /drivers/mmc/host/sdhci.c
parent489f7ab6c18cdd64a2d444e056d60a0e722f4ad7 (diff)
parent7f72134c32eb64c77d1fb35123ba8bf815bf797c (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (25 commits) atmel-mci: add MCI2 register definitions atmel-mci: Integrate AT91 specific definition in header file tmio_mmc: allow compilation for ASIC3 mmc_block: do not DMA to stack sdhci: Print ADMA status and pointer on debug tmio_mmc: fix clock setup tmio_mmc: map SD control registers after enabling the MFD cell tmio_mmc: correct probe return value for num_resources != 3 tmio_mmc: don't use set_irq_type tmio_mmc: add bus_shift support MFD,mmc: tmio_mmc: make HCLK configurable mmc_spi: don't use EINVAL for possible transmission errors cb710: more cleanup for the DEBUG case. sdhci: platform driver for SDHCI mxcmmc: remove frequency workaround cb710: handle DEBUG define in Makefile cb710: add missing parenthesis cb710: fix printk format string mmc: Driver for CB710/720 memory card reader (MMC part) pxamci: add regulator support. ...
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
-rw-r--r--drivers/mmc/host/sdhci.c58
1 files changed, 33 insertions, 25 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9234be2226e..35789c6edc1 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -78,6 +78,11 @@ static void sdhci_dumpregs(struct sdhci_host *host)
sdhci_readl(host, SDHCI_CAPABILITIES),
sdhci_readl(host, SDHCI_MAX_CURRENT));
+ if (host->flags & SDHCI_USE_ADMA)
+ printk(KERN_DEBUG DRIVER_NAME ": ADMA Err: 0x%08x | ADMA Ptr: 0x%08x\n",
+ readl(host->ioaddr + SDHCI_ADMA_ERROR),
+ readl(host->ioaddr + SDHCI_ADMA_ADDRESS));
+
printk(KERN_DEBUG DRIVER_NAME ": ===========================================\n");
}
@@ -1005,12 +1010,34 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
{
u8 pwr;
- if (host->power == power)
+ if (power == (unsigned short)-1)
+ pwr = 0;
+ else {
+ switch (1 << power) {
+ case MMC_VDD_165_195:
+ pwr = SDHCI_POWER_180;
+ break;
+ case MMC_VDD_29_30:
+ case MMC_VDD_30_31:
+ pwr = SDHCI_POWER_300;
+ break;
+ case MMC_VDD_32_33:
+ case MMC_VDD_33_34:
+ pwr = SDHCI_POWER_330;
+ break;
+ default:
+ BUG();
+ }
+ }
+
+ if (host->pwr == pwr)
return;
- if (power == (unsigned short)-1) {
+ host->pwr = pwr;
+
+ if (pwr == 0) {
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
- goto out;
+ return;
}
/*
@@ -1020,35 +1047,16 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE))
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
- pwr = SDHCI_POWER_ON;
-
- switch (1 << power) {
- case MMC_VDD_165_195:
- pwr |= SDHCI_POWER_180;
- break;
- case MMC_VDD_29_30:
- case MMC_VDD_30_31:
- pwr |= SDHCI_POWER_300;
- break;
- case MMC_VDD_32_33:
- case MMC_VDD_33_34:
- pwr |= SDHCI_POWER_330;
- break;
- default:
- BUG();
- }
-
/*
* At least the Marvell CaFe chip gets confused if we set the voltage
* and set turn on power at the same time, so set the voltage first.
*/
if ((host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER))
- sdhci_writeb(host, pwr & ~SDHCI_POWER_ON, SDHCI_POWER_CONTROL);
+ sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
- sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
+ pwr |= SDHCI_POWER_ON;
-out:
- host->power = power;
+ sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
}
/*****************************************************************************\