| /* |
| * linux/drivers/mmc/host/mmci.h - ARM PrimeCell MMCI PL180/1 driver |
| * |
| * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #define MMCIPOWER 0x000 |
| #define MCI_PWR_OFF 0x00 |
| #define MCI_PWR_UP 0x02 |
| #define MCI_PWR_ON 0x03 |
| #define MCI_DATA2DIREN (1 << 2) |
| #define MCI_CMDDIREN (1 << 3) |
| #define MCI_DATA0DIREN (1 << 4) |
| #define MCI_DATA31DIREN (1 << 5) |
| #define MCI_OD (1 << 6) |
| #define MCI_ROD (1 << 7) |
| /* The ST Micro version does not have ROD */ |
| #define MCI_FBCLKEN (1 << 7) |
| #define MCI_DATA74DIREN (1 << 8) |
| |
| #define MMCICLOCK 0x004 |
| #define MCI_CLK_ENABLE (1 << 8) |
| #define MCI_CLK_PWRSAVE (1 << 9) |
| #define MCI_CLK_BYPASS (1 << 10) |
| #define MCI_WIDE_BUS (1 << 11) |
| /* HW flow control on the ST Micro version */ |
| #define MCI_FCEN (1 << 13) |
| |
| #define MMCIARGUMENT 0x008 |
| #define MMCICOMMAND 0x00c |
| #define MCI_CPSM_RESPONSE (1 << 6) |
| #define MCI_CPSM_LONGRSP (1 << 7) |
| #define MCI_CPSM_INTERRUPT (1 << 8) |
| #define MCI_CPSM_PENDING (1 << 9) |
| #define MCI_CPSM_ENABLE (1 << 10) |
| #define MCI_SDIO_SUSP (1 << 11) |
| #define MCI_ENCMD_COMPL (1 << 12) |
| #define MCI_NIEN (1 << 13) |
| #define MCI_CE_ATACMD (1 << 14) |
| |
| #define MMCIRESPCMD 0x010 |
| #define MMCIRESPONSE0 0x014 |
| #define MMCIRESPONSE1 0x018 |
| #define MMCIRESPONSE2 0x01c |
| #define MMCIRESPONSE3 0x020 |
| #define MMCIDATATIMER 0x024 |
| #define MMCIDATALENGTH 0x028 |
| #define MMCIDATACTRL 0x02c |
| #define MCI_DPSM_ENABLE (1 << 0) |
| #define MCI_DPSM_DIRECTION (1 << 1) |
| #define MCI_DPSM_MODE (1 << 2) |
| #define MCI_DPSM_DMAENABLE (1 << 3) |
| #define MCI_DPSM_BLOCKSIZE (1 << 4) |
| #define MCI_DPSM_RWSTART (1 << 8) |
| #define MCI_DPSM_RWSTOP (1 << 9) |
| #define MCI_DPSM_RWMOD (1 << 10) |
| #define MCI_DPSM_SDIOEN (1 << 11) |
| |
| #define MMCIDATACNT 0x030 |
| #define MMCISTATUS 0x034 |
| #define MCI_CMDCRCFAIL (1 << 0) |
| #define MCI_DATACRCFAIL (1 << 1) |
| #define MCI_CMDTIMEOUT (1 << 2) |
| #define MCI_DATATIMEOUT (1 << 3) |
| #define MCI_TXUNDERRUN (1 << 4) |
| #define MCI_RXOVERRUN (1 << 5) |
| #define MCI_CMDRESPEND (1 << 6) |
| #define MCI_CMDSENT (1 << 7) |
| #define MCI_DATAEND (1 << 8) |
| #define MCI_DATABLOCKEND (1 << 10) |
| #define MCI_CMDACTIVE (1 << 11) |
| #define MCI_TXACTIVE (1 << 12) |
| #define MCI_RXACTIVE (1 << 13) |
| #define MCI_TXFIFOHALFEMPTY (1 << 14) |
| #define MCI_RXFIFOHALFFULL (1 << 15) |
| #define MCI_TXFIFOFULL (1 << 16) |
| #define MCI_RXFIFOFULL (1 << 17) |
| #define MCI_TXFIFOEMPTY (1 << 18) |
| #define MCI_RXFIFOEMPTY (1 << 19) |
| #define MCI_TXDATAAVLBL (1 << 20) |
| #define MCI_RXDATAAVLBL (1 << 21) |
| #define MCI_SDIOIT (1 << 22) |
| #define MCI_CEATAEND (1 << 23) |
| |
| #define MMCICLEAR 0x038 |
| #define MCI_CMDCRCFAILCLR (1 << 0) |
| #define MCI_DATACRCFAILCLR (1 << 1) |
| #define MCI_CMDTIMEOUTCLR (1 << 2) |
| #define MCI_DATATIMEOUTCLR (1 << 3) |
| #define MCI_TXUNDERRUNCLR (1 << 4) |
| #define MCI_RXOVERRUNCLR (1 << 5) |
| #define MCI_CMDRESPENDCLR (1 << 6) |
| #define MCI_CMDSENTCLR (1 << 7) |
| #define MCI_DATAENDCLR (1 << 8) |
| #define MCI_DATABLOCKENDCLR (1 << 10) |
| #define MCI_SDIOITC (1 << 22) |
| #define MCI_CEATAENDC (1 << 23) |
| |
| #define MMCIMASK0 0x03c |
| #define MCI_CMDCRCFAILMASK (1 << 0) |
| #define MCI_DATACRCFAILMASK (1 << 1) |
| #define MCI_CMDTIMEOUTMASK (1 << 2) |
| #define MCI_DATATIMEOUTMASK (1 << 3) |
| #define MCI_TXUNDERRUNMASK (1 << 4) |
| #define MCI_RXOVERRUNMASK (1 << 5) |
| #define MCI_CMDRESPENDMASK (1 << 6) |
| #define MCI_CMDSENTMASK (1 << 7) |
| #define MCI_DATAENDMASK (1 << 8) |
| #define MCI_DATABLOCKENDMASK (1 << 10) |
| #define MCI_CMDACTIVEMASK (1 << 11) |
| #define MCI_TXACTIVEMASK (1 << 12) |
| #define MCI_RXACTIVEMASK (1 << 13) |
| #define MCI_TXFIFOHALFEMPTYMASK (1 << 14) |
| #define MCI_RXFIFOHALFFULLMASK (1 << 15) |
| #define MCI_TXFIFOFULLMASK (1 << 16) |
| #define MCI_RXFIFOFULLMASK (1 << 17) |
| #define MCI_TXFIFOEMPTYMASK (1 << 18) |
| #define MCI_RXFIFOEMPTYMASK (1 << 19) |
| #define MCI_TXDATAAVLBLMASK (1 << 20) |
| #define MCI_RXDATAAVLBLMASK (1 << 21) |
| #define MCI_SDIOITMASK (1 << 22) |
| #define MCI_CEATAENDMASK (1 << 23) |
| |
| #define MMCIMASK1 0x040 |
| #define MMCIFIFOCNT 0x048 |
| #define MMCIFIFO 0x080 /* to 0x0bc */ |
| |
| #define MCI_IRQENABLE \ |
| (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \ |
| MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \ |
| MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATABLOCKENDMASK) |
| |
| /* |
| * The size of the FIFO in bytes. |
| */ |
| #define MCI_FIFOSIZE (16*4) |
| |
| #define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2) |
| |
| #define NR_SG 16 |
| |
| struct clk; |
| |
| struct mmci_host { |
| void __iomem *base; |
| struct mmc_request *mrq; |
| struct mmc_command *cmd; |
| struct mmc_data *data; |
| struct mmc_host *mmc; |
| struct clk *clk; |
| int gpio_cd; |
| int gpio_wp; |
| |
| unsigned int data_xfered; |
| |
| spinlock_t lock; |
| |
| unsigned int mclk; |
| unsigned int cclk; |
| u32 pwr; |
| struct mmc_platform_data *plat; |
| |
| u8 hw_designer; |
| u8 hw_revision:4; |
| |
| struct timer_list timer; |
| unsigned int oldstat; |
| |
| unsigned int sg_len; |
| |
| /* pio stuff */ |
| struct scatterlist *sg_ptr; |
| unsigned int sg_off; |
| unsigned int size; |
| }; |
| |
| static inline void mmci_init_sg(struct mmci_host *host, struct mmc_data *data) |
| { |
| /* |
| * Ideally, we want the higher levels to pass us a scatter list. |
| */ |
| host->sg_len = data->sg_len; |
| host->sg_ptr = data->sg; |
| host->sg_off = 0; |
| } |
| |
| static inline int mmci_next_sg(struct mmci_host *host) |
| { |
| host->sg_ptr++; |
| host->sg_off = 0; |
| return --host->sg_len; |
| } |
| |
| static inline char *mmci_kmap_atomic(struct mmci_host *host, unsigned long *flags) |
| { |
| struct scatterlist *sg = host->sg_ptr; |
| |
| local_irq_save(*flags); |
| return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset; |
| } |
| |
| static inline void mmci_kunmap_atomic(struct mmci_host *host, void *buffer, unsigned long *flags) |
| { |
| kunmap_atomic(buffer, KM_BIO_SRC_IRQ); |
| local_irq_restore(*flags); |
| } |