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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-09-24 10:44:09 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-24 10:44:09 +0100
commit42431acbac43eb47c774c29d370f5c59136805bf (patch)
tree6e2a3353b4aa3f7ab179d10c287053f04c637542 /drivers/mmc
parentdb53f28b3a6d9338cca1b7e917dc063ac99e1871 (diff)
downloadlinux-42431acbac43eb47c774c29d370f5c59136805bf.tar.bz2
[MMC] MMC_CAP_BYTEBLOCK flag for non-log2 block sizes capable hosts
Some MMC hosts can only handle log2 block sizes. Unfortunately, the MMC password support needs to be able to send non-log2 block sizes. Provide a capability so that the MMC password support can decide whether it should use this support or not. The unfortunate side effect of this host limitation is that any MMC card protected by a password which is not a log2 block size can not be accessed on a host which only allows a log2 block size. This change just adds the flag. The MMC password support code needs updating to use it (if and when it is finally submitted.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/at91_mci.c1
-rw-r--r--drivers/mmc/imxmmc.c2
-rw-r--r--drivers/mmc/omap.c7
-rw-r--r--drivers/mmc/sdhci.c2
-rw-r--r--drivers/mmc/wbsd.c2
5 files changed, 8 insertions, 6 deletions
diff --git a/drivers/mmc/at91_mci.c b/drivers/mmc/at91_mci.c
index 6b7638b84290..d34b7d9d92ed 100644
--- a/drivers/mmc/at91_mci.c
+++ b/drivers/mmc/at91_mci.c
@@ -822,6 +822,7 @@ static int at91_mci_probe(struct platform_device *pdev)
mmc->f_min = 375000;
mmc->f_max = 25000000;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+ mmc->caps = MMC_CAP_BYTEBLOCK;
host = mmc_priv(mmc);
host->mmc = mmc;
diff --git a/drivers/mmc/imxmmc.c b/drivers/mmc/imxmmc.c
index fb6565b98f32..1b79dd271aae 100644
--- a/drivers/mmc/imxmmc.c
+++ b/drivers/mmc/imxmmc.c
@@ -956,7 +956,7 @@ static int imxmci_probe(struct platform_device *pdev)
mmc->f_min = 150000;
mmc->f_max = CLK_RATE/2;
mmc->ocr_avail = MMC_VDD_32_33;
- mmc->caps |= MMC_CAP_4_BIT_DATA;
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_BYTEBLOCK;
/* MMC core transfer sizes tunable parameters */
mmc->max_hw_segs = 64;
diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c
index ddf06b32c159..52c9e52e6b78 100644
--- a/drivers/mmc/omap.c
+++ b/drivers/mmc/omap.c
@@ -1034,13 +1034,14 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
host->irq = pdev->resource[1].start;
host->base = (void __iomem*)IO_ADDRESS(r->start);
- if (minfo->wire4)
- mmc->caps |= MMC_CAP_4_BIT_DATA;
-
mmc->ops = &mmc_omap_ops;
mmc->f_min = 400000;
mmc->f_max = 24000000;
mmc->ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34;
+ mmc->caps = MMC_CAP_BYTEBLOCK;
+
+ if (minfo->wire4)
+ mmc->caps |= MMC_CAP_4_BIT_DATA;
/* Use scatterlist DMA to reduce per-transfer costs.
* NOTE max_seg_size assumption that small blocks aren't
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index dea4edd1c434..fdfc3838dd79 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -1262,7 +1262,7 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
mmc->ops = &sdhci_ops;
mmc->f_min = host->max_clk / 256;
mmc->f_max = host->max_clk;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE | MMC_CAP_BYTEBLOCK;
mmc->ocr_avail = 0;
if (caps & SDHCI_CAN_VDD_330)
diff --git a/drivers/mmc/wbsd.c b/drivers/mmc/wbsd.c
index 4a6617d9a49f..6435a6822ad3 100644
--- a/drivers/mmc/wbsd.c
+++ b/drivers/mmc/wbsd.c
@@ -1323,7 +1323,7 @@ static int __devinit wbsd_alloc_mmc(struct device *dev)
mmc->f_min = 375000;
mmc->f_max = 24000000;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
+ mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE | MMC_CAP_BYTEBLOCK;
spin_lock_init(&host->lock);