mmc: dw_mmc: add quirks for unreliable card detect, and capabilities
This patch adds quirks and capabilities to platdata. Some cards don't use the CDn pin; in that case, we assume the card's inserted. Some boards need other capabilities. So, we add capabilities in the board's platdata. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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Chris Ball
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860cfe796c
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fc3d772054
@@ -166,11 +166,13 @@ struct dw_mci_dma_ops {
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/* IP Quirks/flags. */
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/* DTO fix for command transmission with IDMAC configured */
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#define DW_MCI_QUIRK_IDMAC_DTO BIT(0)
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#define DW_MCI_QUIRK_IDMAC_DTO BIT(0)
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/* delay needed between retries on some 2.11a implementations */
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#define DW_MCI_QUIRK_RETRY_DELAY BIT(1)
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#define DW_MCI_QUIRK_RETRY_DELAY BIT(1)
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/* High Speed Capable - Supports HS cards (upto 50MHz) */
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#define DW_MCI_QUIRK_HIGHSPEED BIT(2)
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#define DW_MCI_QUIRK_HIGHSPEED BIT(2)
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/* Unreliable card detection */
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#define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3)
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struct dma_pdata;
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@@ -190,6 +192,8 @@ struct dw_mci_board {
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u32 quirks; /* Workaround / Quirk flags */
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unsigned int bus_hz; /* Bus speed */
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unsigned int caps; /* Capabilities */
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/* delay in mS before detecting cards after interrupt */
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u32 detect_delay_ms;
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