sys/dev/sdhci/sdhci_fdt.h

root/sys/dev/sdhci/sdhci_fdt.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#ifndef _SDHCI_FDT_H_
#define _SDHCI_FDT_H_

#define SDHCI_FDT_MAX_SLOTS             6

struct sdhci_fdt_softc {
        device_t        dev;            /* Controller device */
        u_int           quirks;         /* Chip specific quirks */
        u_int           caps;           /* If we override SDHCI_CAPABILITIES */
        uint32_t        max_clk;        /* Max possible freq */
        uint8_t         sdma_boundary;  /* If we override the SDMA boundary */
        struct resource *irq_res;       /* IRQ resource */
        void            *intrhand;      /* Interrupt handle */

        int             num_slots;      /* Number of slots on this controller*/
        struct sdhci_slot slots[SDHCI_FDT_MAX_SLOTS];
        struct resource *mem_res[SDHCI_FDT_MAX_SLOTS];  /* Memory resource */

        bool            wp_inverted;    /* WP pin is inverted */
        bool            wp_disabled;    /* WP pin is not supported */
        bool            no_18v;         /* No 1.8V support */

        clk_t           clk_xin;        /* xin24m fixed clock */
        clk_t           clk_ahb;        /* ahb clock */
        clk_t           clk_core;       /* core clock */
        phy_t           phy;            /* phy to be used */

        struct syscon   *syscon;        /* Handle to the syscon */
};

int sdhci_fdt_attach(device_t dev);
int sdhci_fdt_detach(device_t dev);
int sdhci_get_syscon(struct sdhci_fdt_softc *sc);
int sdhci_init_phy(struct sdhci_fdt_softc *sc);
void sdhci_export_clocks(struct sdhci_fdt_softc *sc);
int sdhci_clock_ofw_map(struct clkdom *clkdom, uint32_t ncells,
    phandle_t *cells, struct clknode **clk);
int sdhci_init_clocks(device_t dev);
int sdhci_fdt_set_clock(device_t dev, struct sdhci_slot *slot,
    int clock);
#endif
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