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/*
* Davinci MMC Controller Defines - Based on Linux davinci_mmc.c
*
* Copyright (C) 2010 Texas Instruments Incorporated
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _SDMMC_DEFS_H_
#define _SDMMC_DEFS_H_
#include <asm/arch/hardware.h>
/* MMC Control Reg fields */
#define MMCCTL_DATRST (1 << 0)
#define MMCCTL_CMDRST (1 << 1)
#define MMCCTL_WIDTH_4_BIT (1 << 2)
#define MMCCTL_DATEG_DISABLED (0 << 6)
#define MMCCTL_DATEG_RISING (1 << 6)
#define MMCCTL_DATEG_FALLING (2 << 6)
#define MMCCTL_DATEG_BOTH (3 << 6)
#define MMCCTL_PERMDR_LE (0 << 9)
#define MMCCTL_PERMDR_BE (1 << 9)
#define MMCCTL_PERMDX_LE (0 << 10)
#define MMCCTL_PERMDX_BE (1 << 10)
/* MMC Clock Control Reg fields */
#define MMCCLK_CLKEN (1 << 8)
#define MMCCLK_CLKRT_MASK (0xFF << 0)
/* MMC Status Reg0 fields */
#define MMCST0_DATDNE (1 << 0)
#define MMCST0_BSYDNE (1 << 1)
#define MMCST0_RSPDNE (1 << 2)
#define MMCST0_TOUTRD (1 << 3)
#define MMCST0_TOUTRS (1 << 4)
#define MMCST0_CRCWR (1 << 5)
#define MMCST0_CRCRD (1 << 6)
#define MMCST0_CRCRS (1 << 7)
#define MMCST0_DXRDY (1 << 9)
#define MMCST0_DRRDY (1 << 10)
#define MMCST0_DATED (1 << 11)
#define MMCST0_TRNDNE (1 << 12)
#define MMCST0_ERR_MASK (0x00F8)
/* MMC Status Reg1 fields */
#define MMCST1_BUSY (1 << 0)
#define MMCST1_CLKSTP (1 << 1)
#define MMCST1_DXEMP (1 << 2)
#define MMCST1_DRFUL (1 << 3)
#define MMCST1_DAT3ST (1 << 4)
#define MMCST1_FIFOEMP (1 << 5)
#define MMCST1_FIFOFUL (1 << 6)
/* MMC INT Mask Reg fields */
#define MMCIM_EDATDNE (1 << 0)
#define MMCIM_EBSYDNE (1 << 1)
#define MMCIM_ERSPDNE (1 << 2)
#define MMCIM_ETOUTRD (1 << 3)
#define MMCIM_ETOUTRS (1 << 4)
#define MMCIM_ECRCWR (1 << 5)
#define MMCIM_ECRCRD (1 << 6)
#define MMCIM_ECRCRS (1 << 7)
#define MMCIM_EDXRDY (1 << 9)
#define MMCIM_EDRRDY (1 << 10)
#define MMCIM_EDATED (1 << 11)
#define MMCIM_ETRNDNE (1 << 12)
#define MMCIM_MASKALL (0xFFFFFFFF)
/* MMC Resp Tout Reg fields */
#define MMCTOR_TOR_MASK (0xFF) /* dont write to reg, | it */
#define MMCTOR_TOD_20_16_SHIFT (8)
/* MMC Data Read Tout Reg fields */
#define MMCTOD_TOD_0_15_MASK (0xFFFF)
/* MMC Block len Reg fields */
#define MMCBLEN_BLEN_MASK (0xFFF)
/* MMC Num Blocks Reg fields */
#define MMCNBLK_NBLK_MASK (0xFFFF)
#define MMCNBLK_NBLK_MAX (0xFFFF)
/* MMC Num Blocks Counter Reg fields */
#define MMCNBLC_NBLC_MASK (0xFFFF)
/* MMC Cmd Reg fields */
#define MMCCMD_CMD_MASK (0x3F)
#define MMCCMD_PPLEN (1 << 7)
#define MMCCMD_BSYEXP (1 << 8)
#define MMCCMD_RSPFMT_NONE (0 << 9)
#define MMCCMD_RSPFMT_R1567 (1 << 9)
#define MMCCMD_RSPFMT_R2 (2 << 9)
#define MMCCMD_RSPFMT_R3 (3 << 9)
#define MMCCMD_DTRW (1 << 11)
#define MMCCMD_STRMTP (1 << 12)
#define MMCCMD_WDATX (1 << 13)
#define MMCCMD_INITCK (1 << 14)
#define MMCCMD_DCLR (1 << 15)
#define MMCCMD_DMATRIG (1 << 16)
/* FIFO control Reg fields */
#define MMCFIFOCTL_FIFORST (1 << 0)
#define MMCFIFOCTL_FIFODIR (1 << 1)
#define MMCFIFOCTL_FIFOLEV (1 << 2)
#define MMCFIFOCTL_ACCWD_4 (0 << 3) /* access width of 4 bytes */
#define MMCFIFOCTL_ACCWD_3 (1 << 3) /* access width of 3 bytes */
#define MMCFIFOCTL_ACCWD_2 (2 << 3) /* access width of 2 bytes */
#define MMCFIFOCTL_ACCWD_1 (3 << 3) /* access width of 1 byte */
/* Davinci MMC Register definitions */
struct davinci_mmc_regs {
dv_reg mmcctl;
dv_reg mmcclk;
dv_reg mmcst0;
dv_reg mmcst1;
dv_reg mmcim;
dv_reg mmctor;
dv_reg mmctod;
dv_reg mmcblen;
dv_reg mmcnblk;
dv_reg mmcnblc;
dv_reg mmcdrr;
dv_reg mmcdxr;
dv_reg mmccmd;
dv_reg mmcarghl;
dv_reg mmcrsp01;
dv_reg mmcrsp23;
dv_reg mmcrsp45;
dv_reg mmcrsp67;
dv_reg mmcdrsp;
dv_reg mmcetok;
dv_reg mmccidx;
dv_reg mmcckc;
dv_reg mmctorc;
dv_reg mmctodc;
dv_reg mmcblnc;
dv_reg sdioctl;
dv_reg sdiost0;
dv_reg sdioien;
dv_reg sdioist;
dv_reg mmcfifoctl;
};
/* Davinci MMC board definitions */
struct davinci_mmc {
struct davinci_mmc_regs *reg_base; /* Register base address */
uint input_clk; /* Input clock to MMC controller */
uint host_caps; /* Host capabilities */
uint voltages; /* Host supported voltages */
uint version; /* MMC Controller version */
};
enum {
MMC_CTLR_VERSION_1 = 0, /* DM644x and DM355 */
MMC_CTLR_VERSION_2, /* DA830 */
};
int davinci_mmc_init(bd_t *bis, struct davinci_mmc *host);
#endif /* _SDMMC_DEFS_H */
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