| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef ASMARM_ARCH_MMC_H |
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| 3 | #define ASMARM_ARCH_MMC_H |
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| 4 | |
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| 5 | #include <linux/interrupt.h> |
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| 6 | #include <linux/mmc/host.h> |
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| 7 | |
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| 8 | struct device; |
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| 9 | |
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| 10 | /* board specific SDHC data, optional. |
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| 11 | * If not present, a writable card with 3,3V is assumed. |
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| 12 | */ |
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| 13 | struct imxmmc_platform_data { |
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| 14 | /* Return values for the get_ro callback should be: |
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| 15 | * 0 for a read/write card |
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| 16 | * 1 for a read-only card |
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| 17 | * -ENOSYS when not supported (equal to NULL callback) |
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| 18 | * or a negative errno value when something bad happened |
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| 19 | */ |
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| 20 | int (*get_ro)(struct device *); |
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| 21 | |
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| 22 | /* board specific hook to (de)initialize the SD slot. |
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| 23 | * The board code can call 'handler' on a card detection |
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| 24 | * change giving data as argument. |
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| 25 | */ |
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| 26 | int (*init)(struct device *dev, irq_handler_t handler, void *data); |
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| 27 | void (*exit)(struct device *dev, void *data); |
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| 28 | |
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| 29 | /* available voltages. If not given, assume |
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| 30 | * MMC_VDD_32_33 | MMC_VDD_33_34 |
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| 31 | */ |
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| 32 | unsigned int ocr_avail; |
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| 33 | |
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| 34 | /* adjust slot voltage */ |
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| 35 | void (*setpower)(struct device *, unsigned int vdd); |
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| 36 | |
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| 37 | /* enable card detect using DAT3 */ |
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| 38 | int dat3_card_detect; |
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| 39 | }; |
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| 40 | |
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| 41 | #endif |
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| 42 | |
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