42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ASMARM_ARCH_MMC_H
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#define ASMARM_ARCH_MMC_H
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#include <linux/interrupt.h>
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#include <linux/mmc/host.h>
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struct device;
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/* board specific SDHC data, optional.
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* If not present, a writable card with 3,3V is assumed.
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*/
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struct imxmmc_platform_data {
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/* Return values for the get_ro callback should be:
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* 0 for a read/write card
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* 1 for a read-only card
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* -ENOSYS when not supported (equal to NULL callback)
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* or a negative errno value when something bad happened
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*/
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int (*get_ro)(struct device *);
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/* board specific hook to (de)initialize the SD slot.
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* The board code can call 'handler' on a card detection
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* change giving data as argument.
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*/
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int (*init)(struct device *dev, irq_handler_t handler, void *data);
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void (*exit)(struct device *dev, void *data);
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/* available voltages. If not given, assume
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* MMC_VDD_32_33 | MMC_VDD_33_34
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*/
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unsigned int ocr_avail;
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/* adjust slot voltage */
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void (*setpower)(struct device *, unsigned int vdd);
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/* enable card detect using DAT3 */
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int dat3_card_detect;
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};
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#endif
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