/* * Synopsys DesignWare Multimedia Card Interface driver * (Based on NXP driver for lpc 31xx) * * Copyright (C) 2009 NXP Semiconductors * Copyright (C) 2009, 2010 Imagination Technologies Ltd. * * 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. */ #ifndef _DW_MMC_H_ #define _DW_MMC_H_ #define DW_MMC_240A 0x240a #define SDMMC_CTRL 0x000 #define SDMMC_PWREN 0x004 #define SDMMC_CLKDIV 0x008 #define SDMMC_CLKSRC 0x00c #define SDMMC_CLKENA 0x010 #define SDMMC_TMOUT 0x014 #define SDMMC_CTYPE 0x018 #define SDMMC_BLKSIZ 0x01c #define SDMMC_BYTCNT 0x020 #define SDMMC_INTMASK 0x024 #define SDMMC_CMDARG 0x028 #define SDMMC_CMD 0x02c #define SDMMC_RESP0 0x030 #define SDMMC_RESP1 0x034 #define SDMMC_RESP2 0x038 #define SDMMC_RESP3 0x03c #define SDMMC_MINTSTS 0x040 #define SDMMC_RINTSTS 0x044 #define SDMMC_STATUS 0x048 #define SDMMC_FIFOTH 0x04c #define SDMMC_CDETECT 0x050 #define SDMMC_WRTPRT 0x054 #define SDMMC_GPIO 0x058 #define SDMMC_TCBCNT 0x05c #define SDMMC_TBBCNT 0x060 #define SDMMC_DEBNCE 0x064 #define SDMMC_USRID 0x068 #define SDMMC_VERID 0x06c #define SDMMC_HCON 0x070 #define SDMMC_UHS_REG 0x074 #define SDMMC_BMOD 0x080 #define SDMMC_PLDMND 0x084 #define SDMMC_DBADDR 0x088 #define SDMMC_IDSTS 0x08c #define SDMMC_IDINTEN 0x090 #define SDMMC_DSCADDR 0x094 #define SDMMC_BUFADDR 0x098 #define SDMMC_DATA(x) (x) /* * Data offset is difference according to Version * Lower than 2.40a : data register offest is 0x100 */ #define DATA_OFFSET 0x100 #define DATA_240A_OFFSET 0x200 /* shift bit field */ #define _SBF(f, v) ((v) << (f)) /* Control register defines */ #define SDMMC_CTRL_USE_IDMAC BIT(25) #define SDMMC_CTRL_CEATA_INT_EN BIT(11) #define SDMMC_CTRL_SEND_AS_CCSD BIT(10) #define SDMMC_CTRL_SEND_CCSD BIT(9) #define SDMMC_CTRL_ABRT_READ_DATA BIT(8) #define SDMMC_CTRL_SEND_IRQ_RESP BIT(7) #define SDMMC_CTRL_READ_WAIT BIT(6) #define SDMMC_CTRL_DMA_ENABLE BIT(5) #define SDMMC_CTRL_INT_ENABLE BIT(4) #define SDMMC_CTRL_DMA_RESET BIT(2) #define SDMMC_CTRL_FIFO_RESET BIT(1) #define SDMMC_CTRL_RESET BIT(0) /* Clock Enable register defines */ #define SDMMC_CLKEN_LOW_PWR BIT(16) #define SDMMC_CLKEN_ENABLE BIT(0) /* time-out register defines */ #define SDMMC_TMOUT_DATA(n) _SBF(8, (n)) #define SDMMC_TMOUT_DATA_MSK 0xFFFFFF00 #define SDMMC_TMOUT_RESP(n) ((n) & 0xFF) #define SDMMC_TMOUT_RESP_MSK 0xFF /* card-type register defines */ #define SDMMC_CTYPE_8BIT BIT(16) #define SDMMC_CTYPE_4BIT BIT(0) #define SDMMC_CTYPE_1BIT 0 /* Interrupt status & mask register defines */ #define SDMMC_INT_SDIO(n) BIT(16 + (n)) #define SDMMC_INT_EBE BIT(15) #define SDMMC_INT_ACD BIT(14) #define SDMMC_INT_SBE BIT(13) #define SDMMC_INT_HLE BIT(12) #define SDMMC_INT_FRUN BIT(11) #define SDMMC_INT_HTO BIT(10) #define SDMMC_INT_DTO BIT(9) #define SDMMC_INT_RTO BIT(8) #define SDMMC_INT_DCRC BIT(7) #define SDMMC_INT_RCRC BIT(6) #define SDMMC_INT_RXDR BIT(5) #define SDMMC_INT_TXDR BIT(4) #define SDMMC_INT_DATA_OVER BIT(3) #define SDMMC_INT_CMD_DONE BIT(2) #define SDMMC_INT_RESP_ERR BIT(1) #define SDMMC_INT_CD BIT(0) #define SDMMC_INT_ERROR 0xbfc2 /* Command register defines */ #define SDMMC_CMD_START BIT(31) #define SDMMC_CMD_CCS_EXP BIT(23) #define SDMMC_CMD_CEATA_RD BIT(22) #define SDMMC_CMD_UPD_CLK BIT(21) #define SDMMC_CMD_INIT BIT(15) #define SDMMC_CMD_STOP BIT(14) #define SDMMC_CMD_PRV_DAT_WAIT BIT(13) #define SDMMC_CMD_SEND_STOP BIT(12) #define SDMMC_CMD_STRM_MODE BIT(11) #define SDMMC_CMD_DAT_WR BIT(10) #define SDMMC_CMD_DAT_EXP BIT(9) #define SDMMC_CMD_RESP_CRC BIT(8) #define SDMMC_CMD_RESP_LONG BIT(7) #define SDMMC_CMD_RESP_EXP BIT(6) #define SDMMC_CMD_INDX(n) ((n) & 0x1F) /* Status register defines */ #define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FFF) /* Internal DMAC interrupt defines */ #define SDMMC_IDMAC_INT_AI BIT(9) #define SDMMC_IDMAC_INT_NI BIT(8) #define SDMMC_IDMAC_INT_CES BIT(5) #define SDMMC_IDMAC_INT_DU BIT(4) #define SDMMC_IDMAC_INT_FBE BIT(2) #define SDMMC_IDMAC_INT_RI BIT(1) #define SDMMC_IDMAC_INT_TI BIT(0) /* Internal DMAC bus mode bits */ #define SDMMC_IDMAC_ENABLE BIT(7) #define SDMMC_IDMAC_FB BIT(1) #define SDMMC_IDMAC_SWRESET BIT(0) /* Version ID register define */ #define SDMMC_GET_VERID(x) ((x) & 0xFFFF) /* Register access macros */ #define mci_readl(dev, reg) \ __raw_readl((dev)->regs + SDMMC_##reg) #define mci_writel(dev, reg, value) \ __raw_writel((value), (dev)->regs + SDMMC_##reg) /* 16-bit FIFO access macros */ #define mci_readw(dev, reg) \ __raw_readw((dev)->regs + SDMMC_##reg) #define mci_writew(dev, reg, value) \ __raw_writew((value), (dev)->regs + SDMMC_##reg) /* 64-bit FIFO access macros */ #ifdef readq #define mci_readq(dev, reg) \ __raw_readq((dev)->regs + SDMMC_##reg) #define mci_writeq(dev, reg, value) \ __raw_writeq((value), (dev)->regs + SDMMC_##reg) #else /* * Dummy readq implementation for architectures that don't define it. * * We would assume that none of these architectures would configure * the IP block with a 64bit FIFO width, so this code will never be * executed on those machines. Defining these macros here keeps the * rest of the code free from ifdefs. */ #define mci_readq(dev, reg) \ (*(volatile u64 __force *)((dev)->regs + SDMMC_##reg)) #define mci_writeq(dev, reg, value) \ (*(volatile u64 __force *)((dev)->regs + SDMMC_##reg) = (value)) #endif extern int dw_mci_probe(struct dw_mci *host); extern void dw_mci_remove(struct dw_mci *host); #ifdef CONFIG_PM extern int dw_mci_suspend(struct dw_mci *host); extern int dw_mci_resume(struct dw_mci *host); #endif #endif /* _DW_MMC_H_ */