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| author | Adrian Hunter <adrian.hunter@nokia.com> | 2010-08-11 14:17:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 08:43:30 -0700 |
| commit | 93caf8e69eac763f6a20cf253ace8e7fc1ab7953 (patch) | |
| tree | 0c8e4832caba4c3c5caa6b64ba54aac194637b80 /drivers/mmc | |
| parent | bd788c9665fb7c543aac21317059375632343337 (diff) | |
| download | lwn-93caf8e69eac763f6a20cf253ace8e7fc1ab7953.tar.gz lwn-93caf8e69eac763f6a20cf253ace8e7fc1ab7953.zip | |
omap_hsmmc: add erase capability
Disable the data (busy) timeout for erases and set the MMC_CAP_ERASE
capability.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index dc57ef6aef4f..4a8776f8afdd 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -28,6 +28,7 @@ #include <linux/clk.h> #include <linux/mmc/host.h> #include <linux/mmc/core.h> +#include <linux/mmc/mmc.h> #include <linux/io.h> #include <linux/semaphore.h> #include <linux/gpio.h> @@ -78,6 +79,7 @@ #define INT_EN_MASK 0x307F0033 #define BWR_ENABLE (1 << 4) #define BRR_ENABLE (1 << 5) +#define DTO_ENABLE (1 << 20) #define INIT_STREAM (1 << 1) #define DP_SELECT (1 << 21) #define DDIR (1 << 4) @@ -523,7 +525,8 @@ static void omap_hsmmc_stop_clock(struct omap_hsmmc_host *host) dev_dbg(mmc_dev(host->mmc), "MMC Clock is not stoped\n"); } -static void omap_hsmmc_enable_irq(struct omap_hsmmc_host *host) +static void omap_hsmmc_enable_irq(struct omap_hsmmc_host *host, + struct mmc_command *cmd) { unsigned int irq_mask; @@ -532,6 +535,10 @@ static void omap_hsmmc_enable_irq(struct omap_hsmmc_host *host) else irq_mask = INT_EN_MASK; + /* Disable timeout for erases */ + if (cmd->opcode == MMC_ERASE) + irq_mask &= ~DTO_ENABLE; + OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR); OMAP_HSMMC_WRITE(host->base, ISE, irq_mask); OMAP_HSMMC_WRITE(host->base, IE, irq_mask); @@ -782,7 +789,7 @@ omap_hsmmc_start_command(struct omap_hsmmc_host *host, struct mmc_command *cmd, mmc_hostname(host->mmc), cmd->opcode, cmd->arg); host->cmd = cmd; - omap_hsmmc_enable_irq(host); + omap_hsmmc_enable_irq(host, cmd); host->response_busy = 0; if (cmd->flags & MMC_RSP_PRESENT) { @@ -2107,7 +2114,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) mmc->max_seg_size = mmc->max_req_size; mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | - MMC_CAP_WAIT_WHILE_BUSY; + MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE; switch (mmc_slot(host).wires) { case 8: |