diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/arch-davinci/sdmmc_defs.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-davinci/sdmmc_defs.h b/arch/arm/include/asm/arch-davinci/sdmmc_defs.h new file mode 100644 index 0000000..853fd40 --- /dev/null +++ b/arch/arm/include/asm/arch-davinci/sdmmc_defs.h @@ -0,0 +1,175 @@ +/* + * 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 */ |