diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2010-05-19 18:36:02 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-22 17:05:21 +0900 |
| commit | ac8fb3e8627d5494f3d2221925a82be4c1778b0e (patch) | |
| tree | 5e2e62928e4eeb67aac2363b613ec087546912d6 | |
| parent | 65a1b0347a329422e939e14daae6dad9a29e9cf2 (diff) | |
| download | blackbird-op-linux-ac8fb3e8627d5494f3d2221925a82be4c1778b0e.tar.gz blackbird-op-linux-ac8fb3e8627d5494f3d2221925a82be4c1778b0e.zip | |
tmio: add a platform flag to disable card write-protection detection
Write-protection status is not always available, e.g., micro-SD cards do not
have a write-protection switch at all. This patch adds a flag to let platforms
force tmio_mmc to consider the card writable.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.c | 5 | ||||
| -rw-r--r-- | include/linux/mfd/tmio.h | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 3ecd41875fac..faa16b7d9412 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -748,8 +748,11 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) static int tmio_mmc_get_ro(struct mmc_host *mmc) { struct tmio_mmc_host *host = mmc_priv(mmc); + struct mfd_cell *cell = host->pdev->dev.platform_data; + struct tmio_mmc_data *pdata = cell->driver_data; - return (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT) ? 0 : 1; + return ((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) || + (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT)) ? 0 : 1; } static const struct mmc_host_ops tmio_mmc_ops = { diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index 360fc953d7bb..feeed0b9ee70 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -50,6 +50,9 @@ tmio_iowrite16((val) >> 16, (base) + ((reg + 2) << (shift))); \ } while (0) +/* tmio MMC platform flags */ +#define TMIO_MMC_WRPROTECT_DISABLE (1 << 0) + int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base); int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base); void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state); @@ -66,6 +69,7 @@ struct tmio_mmc_dma { struct tmio_mmc_data { unsigned int hclk; unsigned long capabilities; + unsigned long flags; struct tmio_mmc_dma *dma; void (*set_pwr)(struct platform_device *host, int state); void (*set_clk_div)(struct platform_device *host, int state); |
