dwmmc.h
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/*
* (C) Copyright 2012 SAMSUNG Electronics
* Jaehoon Chung <jh80.chung@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __DWMMC_HW_H
#define __DWMMC_HW_H
#include <asm/io.h>
#include <mmc.h>
#define DWMCI_CTRL 0x000
#define DWMCI_PWREN 0x004
#define DWMCI_CLKDIV 0x008
#define DWMCI_CLKSRC 0x00C
#define DWMCI_CLKENA 0x010
#define DWMCI_TMOUT 0x014
#define DWMCI_CTYPE 0x018
#define DWMCI_BLKSIZ 0x01C
#define DWMCI_BYTCNT 0x020
#define DWMCI_INTMASK 0x024
#define DWMCI_CMDARG 0x028
#define DWMCI_CMD 0x02C
#define DWMCI_RESP0 0x030
#define DWMCI_RESP1 0x034
#define DWMCI_RESP2 0x038
#define DWMCI_RESP3 0x03C
#define DWMCI_MINTSTS 0x040
#define DWMCI_RINTSTS 0x044
#define DWMCI_STATUS 0x048
#define DWMCI_FIFOTH 0x04C
#define DWMCI_CDETECT 0x050
#define DWMCI_WRTPRT 0x054
#define DWMCI_GPIO 0x058
#define DWMCI_TCMCNT 0x05C
#define DWMCI_TBBCNT 0x060
#define DWMCI_DEBNCE 0x064
#define DWMCI_USRID 0x068
#define DWMCI_VERID 0x06C
#define DWMCI_HCON 0x070
#define DWMCI_UHS_REG 0x074
#define DWMCI_BMOD 0x080
#define DWMCI_PLDMND 0x084
#define DWMCI_DBADDR 0x088
#define DWMCI_IDSTS 0x08C
#define DWMCI_IDINTEN 0x090
#define DWMCI_DSCADDR 0x094
#define DWMCI_BUFADDR 0x098
#define DWMCI_DATA 0x200
/* Interrupt Mask register */
#define DWMCI_INTMSK_ALL 0xffffffff
#define DWMCI_INTMSK_RE (1 << 1)
#define DWMCI_INTMSK_CDONE (1 << 2)
#define DWMCI_INTMSK_DTO (1 << 3)
#define DWMCI_INTMSK_TXDR (1 << 4)
#define DWMCI_INTMSK_RXDR (1 << 5)
#define DWMCI_INTMSK_DCRC (1 << 7)
#define DWMCI_INTMSK_RTO (1 << 8)
#define DWMCI_INTMSK_DRTO (1 << 9)
#define DWMCI_INTMSK_HTO (1 << 10)
#define DWMCI_INTMSK_FRUN (1 << 11)
#define DWMCI_INTMSK_HLE (1 << 12)
#define DWMCI_INTMSK_SBE (1 << 13)
#define DWMCI_INTMSK_ACD (1 << 14)
#define DWMCI_INTMSK_EBE (1 << 15)
/* Raw interrupt Regsiter */
#define DWMCI_DATA_ERR (DWMCI_INTMSK_EBE | DWMCI_INTMSK_SBE | DWMCI_INTMSK_HLE |\
DWMCI_INTMSK_FRUN | DWMCI_INTMSK_EBE | DWMCI_INTMSK_DCRC)
#define DWMCI_DATA_TOUT (DWMCI_INTMSK_HTO | DWMCI_INTMSK_DRTO)
/* CTRL register */
#define DWMCI_CTRL_RESET (1 << 0)
#define DWMCI_CTRL_FIFO_RESET (1 << 1)
#define DWMCI_CTRL_DMA_RESET (1 << 2)
#define DWMCI_DMA_EN (1 << 5)
#define DWMCI_CTRL_SEND_AS_CCSD (1 << 10)
#define DWMCI_IDMAC_EN (1 << 25)
#define DWMCI_RESET_ALL (DWMCI_CTRL_RESET | DWMCI_CTRL_FIFO_RESET |\
DWMCI_CTRL_DMA_RESET)
/* CMD register */
#define DWMCI_CMD_RESP_EXP (1 << 6)
#define DWMCI_CMD_RESP_LENGTH (1 << 7)
#define DWMCI_CMD_CHECK_CRC (1 << 8)
#define DWMCI_CMD_DATA_EXP (1 << 9)
#define DWMCI_CMD_RW (1 << 10)
#define DWMCI_CMD_SEND_STOP (1 << 12)
#define DWMCI_CMD_ABORT_STOP (1 << 14)
#define DWMCI_CMD_PRV_DAT_WAIT (1 << 13)
#define DWMCI_CMD_UPD_CLK (1 << 21)
#define DWMCI_CMD_USE_HOLD_REG (1 << 29)
#define DWMCI_CMD_START (1 << 31)
/* CLKENA register */
#define DWMCI_CLKEN_ENABLE (1 << 0)
#define DWMCI_CLKEN_LOW_PWR (1 << 16)
/* Card-type registe */
#define DWMCI_CTYPE_1BIT 0
#define DWMCI_CTYPE_4BIT (1 << 0)
#define DWMCI_CTYPE_8BIT (1 << 16)
/* Status Register */
#define DWMCI_BUSY (1 << 9)
/* FIFOTH Register */
#define MSIZE(x) ((x) << 28)
#define RX_WMARK(x) ((x) << 16)
#define TX_WMARK(x) (x)
#define RX_WMARK_SHIFT 16
#define RX_WMARK_MASK (0xfff << RX_WMARK_SHIFT)
#define DWMCI_IDMAC_OWN (1 << 31)
#define DWMCI_IDMAC_CH (1 << 4)
#define DWMCI_IDMAC_FS (1 << 3)
#define DWMCI_IDMAC_LD (1 << 2)
/* Bus Mode Register */
#define DWMCI_BMOD_IDMAC_RESET (1 << 0)
#define DWMCI_BMOD_IDMAC_FB (1 << 1)
#define DWMCI_BMOD_IDMAC_EN (1 << 7)
/* UHS register */
#define DWMCI_DDR_MODE (1 << 16)
/* quirks */
#define DWMCI_QUIRK_DISABLE_SMU (1 << 0)
struct dwmci_host {
char *name;
void *ioaddr;
unsigned int quirks;
unsigned int caps;
unsigned int version;
unsigned int clock;
unsigned int bus_hz;
unsigned int div;
int dev_index;
int dev_id;
int buswidth;
u32 fifoth_val;
struct mmc *mmc;
void *priv;
void (*clksel)(struct dwmci_host *host);
void (*board_init)(struct dwmci_host *host);
unsigned int (*get_mmc_clk)(struct dwmci_host *host);
struct mmc_config cfg;
};
struct dwmci_idmac {
u32 flags;
u32 cnt;
u32 addr;
u32 next_addr;
} __aligned(ARCH_DMA_MINALIGN);
static inline void dwmci_writel(struct dwmci_host *host, int reg, u32 val)
{
writel(val, host->ioaddr + reg);
}
static inline void dwmci_writew(struct dwmci_host *host, int reg, u16 val)
{
writew(val, host->ioaddr + reg);
}
static inline void dwmci_writeb(struct dwmci_host *host, int reg, u8 val)
{
writeb(val, host->ioaddr + reg);
}
static inline u32 dwmci_readl(struct dwmci_host *host, int reg)
{
return readl(host->ioaddr + reg);
}
static inline u16 dwmci_readw(struct dwmci_host *host, int reg)
{
return readw(host->ioaddr + reg);
}
static inline u8 dwmci_readb(struct dwmci_host *host, int reg)
{
return readb(host->ioaddr + reg);
}
int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk);
#endif /* __DWMMC_HW_H */