atmel_mci.h
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/*
* Copyright (C) 2005-2006 Atmel Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ATMEL_MCI_H__
#define __ATMEL_MCI_H__
int atmel_mci_init(void *regs);
#ifndef __ASSEMBLY__
/*
* Structure for struct SoC access.
* Names starting with '_' are fillers.
*/
typedef struct atmel_mci {
/* reg Offset */
u32 cr; /* 0x00 */
u32 mr; /* 0x04 */
u32 dtor; /* 0x08 */
u32 sdcr; /* 0x0c */
u32 argr; /* 0x10 */
u32 cmdr; /* 0x14 */
u32 blkr; /* 0x18 */
u32 _1c; /* 0x1c */
u32 rspr; /* 0x20 */
u32 rspr1; /* 0x24 */
u32 rspr2; /* 0x28 */
u32 rspr3; /* 0x2c */
u32 rdr; /* 0x30 */
u32 tdr; /* 0x34 */
u32 _38; /* 0x38 */
u32 _3c; /* 0x3c */
u32 sr; /* 0x40 */
u32 ier; /* 0x44 */
u32 idr; /* 0x48 */
u32 imr; /* 0x4c */
u32 dma; /* 0x50 */
u32 cfg; /* 0x54 */
u32 reserved[41];
u32 version;
} atmel_mci_t;
#endif /* __ASSEMBLY__ */
/* Bitfields in CR */
#define MMCI_MCIEN_OFFSET 0
#define MMCI_MCIEN_SIZE 1
#define MMCI_MCIDIS_OFFSET 1
#define MMCI_MCIDIS_SIZE 1
#define MMCI_PWSEN_OFFSET 2
#define MMCI_PWSEN_SIZE 1
#define MMCI_PWSDIS_OFFSET 3
#define MMCI_PWSDIS_SIZE 1
#define MMCI_SWRST_OFFSET 7
#define MMCI_SWRST_SIZE 1
/* Bitfields in MR */
#define MMCI_CLKDIV_OFFSET 0
#define MMCI_CLKDIV_SIZE 8
#define MMCI_PWSDIV_OFFSET 8
#define MMCI_PWSDIV_SIZE 3
#define MMCI_RDPROOF_OFFSET 11
#define MMCI_RDPROOF_SIZE 1
#define MMCI_WRPROOF_OFFSET 12
#define MMCI_WRPROOF_SIZE 1
#define MMCI_PDCPADV_OFFSET 14
#define MMCI_PDCPADV_SIZE 1
#define MMCI_PDCMODE_OFFSET 15
#define MMCI_PDCMODE_SIZE 1
/* MCI IP version >= 0x500, MR bit 16 used for CLKODD */
#define MMCI_CLKODD_OFFSET 16
#define MMCI_CLKODD_SIZE 1
/* MCI IP version < 0x200, MR higher 16bits for BLKLEN */
#define MMCI_BLKLEN_OFFSET 16
#define MMCI_BLKLEN_SIZE 16
/* Bitfields in DTOR */
#define MMCI_DTOCYC_OFFSET 0
#define MMCI_DTOCYC_SIZE 4
#define MMCI_DTOMUL_OFFSET 4
#define MMCI_DTOMUL_SIZE 3
/* Bitfields in SDCR */
#define MMCI_SCDSEL_OFFSET 0
#define MMCI_SCDSEL_SIZE 4
#define MMCI_SCDBUS_OFFSET 7
#define MMCI_SCDBUS_SIZE 1
/* Bitfields in ARGR */
#define MMCI_ARG_OFFSET 0
#define MMCI_ARG_SIZE 32
/* Bitfields in CMDR */
#define MMCI_CMDNB_OFFSET 0
#define MMCI_CMDNB_SIZE 6
#define MMCI_RSPTYP_OFFSET 6
#define MMCI_RSPTYP_SIZE 2
#define MMCI_SPCMD_OFFSET 8
#define MMCI_SPCMD_SIZE 3
#define MMCI_OPDCMD_OFFSET 11
#define MMCI_OPDCMD_SIZE 1
#define MMCI_MAXLAT_OFFSET 12
#define MMCI_MAXLAT_SIZE 1
#define MMCI_TRCMD_OFFSET 16
#define MMCI_TRCMD_SIZE 2
#define MMCI_TRDIR_OFFSET 18
#define MMCI_TRDIR_SIZE 1
#define MMCI_TRTYP_OFFSET 19
#define MMCI_TRTYP_SIZE 2
/* Bitfields in BLKR */
/* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
#define MMCI_BCNT_OFFSET 0
#define MMCI_BCNT_SIZE 16
/* Bitfields in RSPRx */
#define MMCI_RSP_OFFSET 0
#define MMCI_RSP_SIZE 32
/* Bitfields in SR/IER/IDR/IMR */
#define MMCI_CMDRDY_OFFSET 0
#define MMCI_CMDRDY_SIZE 1
#define MMCI_RXRDY_OFFSET 1
#define MMCI_RXRDY_SIZE 1
#define MMCI_TXRDY_OFFSET 2
#define MMCI_TXRDY_SIZE 1
#define MMCI_BLKE_OFFSET 3
#define MMCI_BLKE_SIZE 1
#define MMCI_DTIP_OFFSET 4
#define MMCI_DTIP_SIZE 1
#define MMCI_NOTBUSY_OFFSET 5
#define MMCI_NOTBUSY_SIZE 1
#define MMCI_ENDRX_OFFSET 6
#define MMCI_ENDRX_SIZE 1
#define MMCI_ENDTX_OFFSET 7
#define MMCI_ENDTX_SIZE 1
#define MMCI_RXBUFF_OFFSET 14
#define MMCI_RXBUFF_SIZE 1
#define MMCI_TXBUFE_OFFSET 15
#define MMCI_TXBUFE_SIZE 1
#define MMCI_RINDE_OFFSET 16
#define MMCI_RINDE_SIZE 1
#define MMCI_RDIRE_OFFSET 17
#define MMCI_RDIRE_SIZE 1
#define MMCI_RCRCE_OFFSET 18
#define MMCI_RCRCE_SIZE 1
#define MMCI_RENDE_OFFSET 19
#define MMCI_RENDE_SIZE 1
#define MMCI_RTOE_OFFSET 20
#define MMCI_RTOE_SIZE 1
#define MMCI_DCRCE_OFFSET 21
#define MMCI_DCRCE_SIZE 1
#define MMCI_DTOE_OFFSET 22
#define MMCI_DTOE_SIZE 1
#define MMCI_OVRE_OFFSET 30
#define MMCI_OVRE_SIZE 1
#define MMCI_UNRE_OFFSET 31
#define MMCI_UNRE_SIZE 1
/* Constants for DTOMUL */
#define MMCI_DTOMUL_1_CYCLE 0
#define MMCI_DTOMUL_16_CYCLES 1
#define MMCI_DTOMUL_128_CYCLES 2
#define MMCI_DTOMUL_256_CYCLES 3
#define MMCI_DTOMUL_1024_CYCLES 4
#define MMCI_DTOMUL_4096_CYCLES 5
#define MMCI_DTOMUL_65536_CYCLES 6
#define MMCI_DTOMUL_1048576_CYCLES 7
/* Constants for RSPTYP */
#define MMCI_RSPTYP_NO_RESP 0
#define MMCI_RSPTYP_48_BIT_RESP 1
#define MMCI_RSPTYP_136_BIT_RESP 2
/* Constants for SPCMD */
#define MMCI_SPCMD_NO_SPEC_CMD 0
#define MMCI_SPCMD_INIT_CMD 1
#define MMCI_SPCMD_SYNC_CMD 2
#define MMCI_SPCMD_INT_CMD 4
#define MMCI_SPCMD_INT_RESP 5
/* Constants for TRCMD */
#define MMCI_TRCMD_NO_TRANS 0
#define MMCI_TRCMD_START_TRANS 1
#define MMCI_TRCMD_STOP_TRANS 2
/* Constants for TRTYP */
#define MMCI_TRTYP_BLOCK 0
#define MMCI_TRTYP_MULTI_BLOCK 1
#define MMCI_TRTYP_STREAM 2
/* Bitfields in CFG */
#define MMCI_FIFOMODE_OFFSET 0
#define MMCI_FIFOMODE_SIZE 1
#define MMCI_FERRCTRL_OFFSET 4
#define MMCI_FERRCTRL_SIZE 1
#define MMCI_HSMODE_OFFSET 8
#define MMCI_HSMODE_SIZE 1
#define MMCI_LSYNC_OFFSET 12
#define MMCI_LSYNC_SIZE 1
/* Bit manipulation macros */
#define MMCI_BIT(name) \
(1 << MMCI_##name##_OFFSET)
#define MMCI_BF(name,value) \
(((value) & ((1 << MMCI_##name##_SIZE) - 1)) \
<< MMCI_##name##_OFFSET)
#define MMCI_BFEXT(name,value) \
(((value) >> MMCI_##name##_OFFSET)\
& ((1 << MMCI_##name##_SIZE) - 1))
#define MMCI_BFINS(name,value,old) \
(((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \
<< MMCI_##name##_OFFSET)) \
| MMCI_BF(name,value))
#endif /* __ATMEL_MCI_H__ */