mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
47 lines
1.3 KiB
Diff
47 lines
1.3 KiB
Diff
--- a/drivers/mmc/core/sd.c
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+++ b/drivers/mmc/core/sd.c
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@@ -263,6 +263,15 @@ static int mmc_switch_hs(struct mmc_card
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return -ENOMEM;
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}
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+ /*
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+ * Some SDHC cards, notably those with a Sandisk SD controller
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+ * (also found in Kingston products) need a bit of slack
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+ * before successfully handling the SWITCH command. So far,
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+ * cards identifying themselves as "SD04G" and "SD08G" are
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+ * affected
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+ */
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+ udelay(1000);
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+
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err = mmc_sd_switch(card, 1, 0, 1, status);
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if (err)
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goto out;
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--- a/drivers/mmc/host/mvsdio.c
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+++ b/drivers/mmc/host/mvsdio.c
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@@ -620,9 +620,11 @@ static void mvsd_set_ios(struct mmc_host
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if (ios->bus_width == MMC_BUS_WIDTH_4)
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ctrl_reg |= MVSD_HOST_CTRL_DATA_WIDTH_4_BITS;
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+#if 0
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if (ios->timing == MMC_TIMING_MMC_HS ||
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ios->timing == MMC_TIMING_SD_HS)
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ctrl_reg |= MVSD_HOST_CTRL_HI_SPEED_EN;
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+#endif
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host->ctrl = ctrl_reg;
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mvsd_write(MVSD_HOST_CTRL, ctrl_reg);
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--- a/drivers/mmc/core/core.c
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+++ b/drivers/mmc/core/core.c
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@@ -286,9 +286,9 @@ void mmc_set_data_timeout(struct mmc_dat
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* The limit is really 250 ms, but that is
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* insufficient for some crappy cards.
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*/
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- limit_us = 300000;
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+ limit_us = 500000;
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else
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- limit_us = 100000;
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+ limit_us = 200000;
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/*
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* SDHC cards always use these fixed values.
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