From: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
Now, omap_hsmmc can use blk_size_workaround instead of
MMC_CAP2_NO_MULTI_READ. let's use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
v1 -> v2
- fix typo : .blk_workaround -> .blk_size_workaround
drivers/mmc/host/omap_hsmmc.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index ece1634..a7ab924 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -219,6 +219,7 @@ struct omap_hsmmc_host {
#define AUTO_CMD23 (1 << 0) /* Auto CMD23 support */
#define HSMMC_SDIO_IRQ_ENABLED (1 << 1) /* SDIO irq enabled */
#define HSMMC_WAKE_IRQ_ENABLED (1 << 2)
+#define HSMMC_NO_MULTI_READ (1 << 3)
struct omap_hsmmc_next next_data;
struct omap_mmc_platform_data *pdata;
};
@@ -1829,6 +1830,19 @@ static int omap_hsmmc_disable_fclk(struct mmc_host *mmc)
return 0;
}
+static int *omap_hsmmc_blk_size_workaround(struct mmc_card *card,
+ struct request *req, int blk_size)
+{
+ struct omap_hsmmc_host *host = mmc_priv(card->host);
+
+ /* Some controllers can't do multiblock reads due to hw bugs */
+ if ((host->flags & HSMMC_NO_MULTI_READ) &&
+ (rq_data_dir(req) == READ))
+ return 1;
+
+ return blk_size;
+}
+
static const struct mmc_host_ops omap_hsmmc_ops = {
.enable = omap_hsmmc_enable_fclk,
.disable = omap_hsmmc_disable_fclk,
@@ -1840,6 +1854,7 @@ static const struct mmc_host_ops omap_hsmmc_ops = {
.get_ro = omap_hsmmc_get_ro,
.init_card = omap_hsmmc_init_card,
.enable_sdio_irq = omap_hsmmc_enable_sdio_irq,
+ .blk_size_workaround = omap_hsmmc_blk_size_workaround,
};
#ifdef CONFIG_DEBUG_FS
@@ -2101,7 +2116,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
dev_info(&pdev->dev, "multiblock reads disabled due to 35xx
erratum 2.1.1.128; MMC read performance may suffer\n");
- mmc->caps2 |= MMC_CAP2_NO_MULTI_READ;
+ host->flags |= HSMMC_NO_MULTI_READ;
}
pm_runtime_enable(host->dev);
--
1.7.9.5
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