src/commonlib/include/commonlib/sdhci.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * SD host controller specific definitions
 */
#ifndef __COMMONLIB_SDHCI_H__
#define __COMMONLIB_SDHCI_H__

#include <commonlib/sd_mmc_ctrlr.h>

/* Driver specific capabilities */
#define DRVR_CAP_1V8_VDD			0x00010000
#define DRVR_CAP_32BIT_DMA_ADDR			0x00020000
#define DRVR_CAP_BROKEN_R1B			0x00040000
#define DRVR_CAP_NO_CD				0x00080000
#define DRVR_CAP_NO_HISPD_BIT			0x00100000
#define DRVR_CAP_NO_SIMULT_VDD_AND_POWER	0x00200000
#define DRVR_CAP_REG32_RW			0x00400000
#define DRVR_CAP_SPI				0x00800000
#define DRVR_CAP_WAIT_SEND_CMD			0x01000000

/* ADMA packet descriptor */
struct sdhci_adma {
	u16     attributes;
	u16     length;
	u32     addr;
};

struct sdhci_adma64 {
	u16     attributes;
	u16     length;
	u32     addr;
	u32     addr_hi;
};

struct sdhci_ctrlr {
	struct sd_mmc_ctrlr sd_mmc_ctrlr;
	void *ioaddr;
	uint32_t b_max;

	/*
	 * Dynamically allocated array of ADMA descriptors to use for data
	 * transfers
	 */
	struct sdhci_adma *adma_descs;
	struct sdhci_adma64 *adma64_descs;

	/* Number of ADMA descriptors currently in the array. */
	int adma_desc_count;

	/*
	 * Point to function to run before running initialization.
	 * This would include anything non-standard.
	 */
	int (*attach)(struct sdhci_ctrlr *ctrlr);
};

int add_sdhci(struct sdhci_ctrlr *sdhci_ctrlr);
int sdhci_controller_init(struct sdhci_ctrlr *sdhci_ctrlr, void *ioaddr);
void sdhci_update_pointers(struct sdhci_ctrlr *sdhci_ctrlr);
void sdhci_display_setup(struct sdhci_ctrlr *sdhci_ctrlr);

/* Add SDHCI controller from PCI */
struct sd_mmc_ctrlr *new_pci_sdhci_controller(uint32_t dev);

/* Add SDHCI controller with memory address */
struct sd_mmc_ctrlr *new_mem_sdhci_controller(void *ioaddr,
					      int (*pre_init_func)(struct sdhci_ctrlr *host));

#endif /* __COMMONLIB_SDHCI_H__ */