/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2010 MontaVista Software , LLC .
*
* Author : Anton Vorontsov < avorontsov @ ru . mvista . com >
*/
#ifndef _DRIVERS_MMC_SDHCI_PLTFM_H
#define _DRIVERS_MMC_SDHCI_PLTFM_H
#include <linux/clk.h>
#include <linux/platform_device.h>
#include "sdhci.h"
struct sdhci_pltfm_data {
const struct sdhci_ops *ops;
unsigned int quirks;
unsigned int quirks2;
};
struct sdhci_pltfm_host {
struct clk *clk;
/* migrate from sdhci_of_host */
unsigned int clock;
u16 xfer_mode_shadow;
unsigned long private [] ____cacheline_aligned;
};
#ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER
/*
* These accessors are designed for big endian hosts doing I / O to
* little endian controllers incorporating a 32 - bit hardware byte swapper .
*/
static inline u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg)
{
return in_be32(host->ioaddr + reg);
}
static inline u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg)
{
return in_be16(host->ioaddr + (reg ^ 0 x2));
}
static inline u8 sdhci_be32bs_readb(struct sdhci_host *host, int reg)
{
return in_8(host->ioaddr + (reg ^ 0 x3));
}
static inline void sdhci_be32bs_writel(struct sdhci_host *host,
u32 val, int reg)
{
out_be32(host->ioaddr + reg, val);
}
static inline void sdhci_be32bs_writew(struct sdhci_host *host,
u16 val, int reg)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
int base = reg & ~0 x3;
int shift = (reg & 0 x2) * 8 ;
switch (reg) {
case SDHCI_TRANSFER_MODE:
/*
* Postpone this write , we must do it together with a
* command write that is down below .
*/
pltfm_host->xfer_mode_shadow = val;
return ;
case SDHCI_COMMAND:
sdhci_be32bs_writel(host,
val << 16 | pltfm_host->xfer_mode_shadow,
SDHCI_TRANSFER_MODE);
return ;
}
clrsetbits_be32(host->ioaddr + base, 0 xffff << shift, val << shift);
}
static inline void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg)
{
int base = reg & ~0 x3;
int shift = (reg & 0 x3) * 8 ;
clrsetbits_be32(host->ioaddr + base , 0 xff << shift, val << shift);
}
#endif /* CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER */
void sdhci_get_property(struct platform_device *pdev);
static inline void sdhci_get_of_property(struct platform_device *pdev)
{
return sdhci_get_property(pdev);
}
extern struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
const struct sdhci_pltfm_data *pdata,
size_t priv_size);
extern int sdhci_pltfm_init_and_add_host(struct platform_device *pdev,
const struct sdhci_pltfm_data *pdata,
size_t priv_size);
extern void sdhci_pltfm_remove(struct platform_device *pdev);
extern unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host);
static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host)
{
return host->private ;
}
extern const struct dev_pm_ops sdhci_pltfm_pmops;
#ifdef CONFIG_PM_SLEEP
int sdhci_pltfm_suspend(struct device *dev);
int sdhci_pltfm_resume(struct device *dev);
#else
static inline int sdhci_pltfm_suspend(struct device *dev) { return 0 ; }
static inline int sdhci_pltfm_resume(struct device *dev) { return 0 ; }
#endif
#endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
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