11c6a0718SPierre Ossman /* 270f10482SPierre Ossman * linux/drivers/mmc/host/mmci.h - ARM PrimeCell MMCI PL180/1 driver 31c6a0718SPierre Ossman * 41c6a0718SPierre Ossman * Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved. 51c6a0718SPierre Ossman * 61c6a0718SPierre Ossman * This program is free software; you can redistribute it and/or modify 71c6a0718SPierre Ossman * it under the terms of the GNU General Public License version 2 as 81c6a0718SPierre Ossman * published by the Free Software Foundation. 91c6a0718SPierre Ossman */ 101c6a0718SPierre Ossman #define MMCIPOWER 0x000 111c6a0718SPierre Ossman #define MCI_PWR_OFF 0x00 121c6a0718SPierre Ossman #define MCI_PWR_UP 0x02 131c6a0718SPierre Ossman #define MCI_PWR_ON 0x03 141c6a0718SPierre Ossman #define MCI_OD (1 << 6) 151c6a0718SPierre Ossman #define MCI_ROD (1 << 7) 161c6a0718SPierre Ossman 171c6a0718SPierre Ossman #define MMCICLOCK 0x004 181c6a0718SPierre Ossman #define MCI_CLK_ENABLE (1 << 8) 191c6a0718SPierre Ossman #define MCI_CLK_PWRSAVE (1 << 9) 201c6a0718SPierre Ossman #define MCI_CLK_BYPASS (1 << 10) 21771dc157SLinus Walleij #define MCI_4BIT_BUS (1 << 11) 2249ac215eSLinus Walleij /* 2349ac215eSLinus Walleij * 8bit wide buses, hardware flow contronl, negative edges and clock inversion 2449ac215eSLinus Walleij * supported in ST Micro U300 and Ux500 versions 2549ac215eSLinus Walleij */ 26771dc157SLinus Walleij #define MCI_ST_8BIT_BUS (1 << 12) 2749ac215eSLinus Walleij #define MCI_ST_U300_HWFCEN (1 << 13) 2849ac215eSLinus Walleij #define MCI_ST_UX500_NEG_EDGE (1 << 13) 2949ac215eSLinus Walleij #define MCI_ST_UX500_HWFCEN (1 << 14) 3049ac215eSLinus Walleij #define MCI_ST_UX500_CLK_INV (1 << 15) 311c6a0718SPierre Ossman 321c6a0718SPierre Ossman #define MMCIARGUMENT 0x008 331c6a0718SPierre Ossman #define MMCICOMMAND 0x00c 341c6a0718SPierre Ossman #define MCI_CPSM_RESPONSE (1 << 6) 351c6a0718SPierre Ossman #define MCI_CPSM_LONGRSP (1 << 7) 361c6a0718SPierre Ossman #define MCI_CPSM_INTERRUPT (1 << 8) 371c6a0718SPierre Ossman #define MCI_CPSM_PENDING (1 << 9) 381c6a0718SPierre Ossman #define MCI_CPSM_ENABLE (1 << 10) 39cc30d60eSLinus Walleij #define MCI_SDIO_SUSP (1 << 11) 40cc30d60eSLinus Walleij #define MCI_ENCMD_COMPL (1 << 12) 41cc30d60eSLinus Walleij #define MCI_NIEN (1 << 13) 42cc30d60eSLinus Walleij #define MCI_CE_ATACMD (1 << 14) 431c6a0718SPierre Ossman 441c6a0718SPierre Ossman #define MMCIRESPCMD 0x010 451c6a0718SPierre Ossman #define MMCIRESPONSE0 0x014 461c6a0718SPierre Ossman #define MMCIRESPONSE1 0x018 471c6a0718SPierre Ossman #define MMCIRESPONSE2 0x01c 481c6a0718SPierre Ossman #define MMCIRESPONSE3 0x020 491c6a0718SPierre Ossman #define MMCIDATATIMER 0x024 501c6a0718SPierre Ossman #define MMCIDATALENGTH 0x028 511c6a0718SPierre Ossman #define MMCIDATACTRL 0x02c 521c6a0718SPierre Ossman #define MCI_DPSM_ENABLE (1 << 0) 531c6a0718SPierre Ossman #define MCI_DPSM_DIRECTION (1 << 1) 541c6a0718SPierre Ossman #define MCI_DPSM_MODE (1 << 2) 551c6a0718SPierre Ossman #define MCI_DPSM_DMAENABLE (1 << 3) 56cc30d60eSLinus Walleij #define MCI_DPSM_BLOCKSIZE (1 << 4) 57725343faSLinus Walleij /* Control register extensions in the ST Micro U300 and Ux500 versions */ 58725343faSLinus Walleij #define MCI_ST_DPSM_RWSTART (1 << 8) 59725343faSLinus Walleij #define MCI_ST_DPSM_RWSTOP (1 << 9) 60725343faSLinus Walleij #define MCI_ST_DPSM_RWMOD (1 << 10) 61725343faSLinus Walleij #define MCI_ST_DPSM_SDIOEN (1 << 11) 62725343faSLinus Walleij /* Control register extensions in the ST Micro Ux500 versions */ 63725343faSLinus Walleij #define MCI_ST_DPSM_DMAREQCTL (1 << 12) 64725343faSLinus Walleij #define MCI_ST_DPSM_DBOOTMODEEN (1 << 13) 65725343faSLinus Walleij #define MCI_ST_DPSM_BUSYMODE (1 << 14) 66725343faSLinus Walleij #define MCI_ST_DPSM_DDRMODE (1 << 15) 671c6a0718SPierre Ossman 681c6a0718SPierre Ossman #define MMCIDATACNT 0x030 691c6a0718SPierre Ossman #define MMCISTATUS 0x034 701c6a0718SPierre Ossman #define MCI_CMDCRCFAIL (1 << 0) 711c6a0718SPierre Ossman #define MCI_DATACRCFAIL (1 << 1) 721c6a0718SPierre Ossman #define MCI_CMDTIMEOUT (1 << 2) 731c6a0718SPierre Ossman #define MCI_DATATIMEOUT (1 << 3) 741c6a0718SPierre Ossman #define MCI_TXUNDERRUN (1 << 4) 751c6a0718SPierre Ossman #define MCI_RXOVERRUN (1 << 5) 761c6a0718SPierre Ossman #define MCI_CMDRESPEND (1 << 6) 771c6a0718SPierre Ossman #define MCI_CMDSENT (1 << 7) 781c6a0718SPierre Ossman #define MCI_DATAEND (1 << 8) 79757df746SLinus Walleij #define MCI_STARTBITERR (1 << 9) 801c6a0718SPierre Ossman #define MCI_DATABLOCKEND (1 << 10) 811c6a0718SPierre Ossman #define MCI_CMDACTIVE (1 << 11) 821c6a0718SPierre Ossman #define MCI_TXACTIVE (1 << 12) 831c6a0718SPierre Ossman #define MCI_RXACTIVE (1 << 13) 841c6a0718SPierre Ossman #define MCI_TXFIFOHALFEMPTY (1 << 14) 851c6a0718SPierre Ossman #define MCI_RXFIFOHALFFULL (1 << 15) 861c6a0718SPierre Ossman #define MCI_TXFIFOFULL (1 << 16) 871c6a0718SPierre Ossman #define MCI_RXFIFOFULL (1 << 17) 881c6a0718SPierre Ossman #define MCI_TXFIFOEMPTY (1 << 18) 891c6a0718SPierre Ossman #define MCI_RXFIFOEMPTY (1 << 19) 901c6a0718SPierre Ossman #define MCI_TXDATAAVLBL (1 << 20) 911c6a0718SPierre Ossman #define MCI_RXDATAAVLBL (1 << 21) 9249ac215eSLinus Walleij /* Extended status bits for the ST Micro variants */ 9349ac215eSLinus Walleij #define MCI_ST_SDIOIT (1 << 22) 9449ac215eSLinus Walleij #define MCI_ST_CEATAEND (1 << 23) 951c6a0718SPierre Ossman 961c6a0718SPierre Ossman #define MMCICLEAR 0x038 971c6a0718SPierre Ossman #define MCI_CMDCRCFAILCLR (1 << 0) 981c6a0718SPierre Ossman #define MCI_DATACRCFAILCLR (1 << 1) 991c6a0718SPierre Ossman #define MCI_CMDTIMEOUTCLR (1 << 2) 1001c6a0718SPierre Ossman #define MCI_DATATIMEOUTCLR (1 << 3) 1011c6a0718SPierre Ossman #define MCI_TXUNDERRUNCLR (1 << 4) 1021c6a0718SPierre Ossman #define MCI_RXOVERRUNCLR (1 << 5) 1031c6a0718SPierre Ossman #define MCI_CMDRESPENDCLR (1 << 6) 1041c6a0718SPierre Ossman #define MCI_CMDSENTCLR (1 << 7) 1051c6a0718SPierre Ossman #define MCI_DATAENDCLR (1 << 8) 106757df746SLinus Walleij #define MCI_STARTBITERRCLR (1 << 9) 1071c6a0718SPierre Ossman #define MCI_DATABLOCKENDCLR (1 << 10) 10849ac215eSLinus Walleij /* Extended status bits for the ST Micro variants */ 10949ac215eSLinus Walleij #define MCI_ST_SDIOITC (1 << 22) 11049ac215eSLinus Walleij #define MCI_ST_CEATAENDC (1 << 23) 1111c6a0718SPierre Ossman 1121c6a0718SPierre Ossman #define MMCIMASK0 0x03c 1131c6a0718SPierre Ossman #define MCI_CMDCRCFAILMASK (1 << 0) 1141c6a0718SPierre Ossman #define MCI_DATACRCFAILMASK (1 << 1) 1151c6a0718SPierre Ossman #define MCI_CMDTIMEOUTMASK (1 << 2) 1161c6a0718SPierre Ossman #define MCI_DATATIMEOUTMASK (1 << 3) 1171c6a0718SPierre Ossman #define MCI_TXUNDERRUNMASK (1 << 4) 1181c6a0718SPierre Ossman #define MCI_RXOVERRUNMASK (1 << 5) 1191c6a0718SPierre Ossman #define MCI_CMDRESPENDMASK (1 << 6) 1201c6a0718SPierre Ossman #define MCI_CMDSENTMASK (1 << 7) 1211c6a0718SPierre Ossman #define MCI_DATAENDMASK (1 << 8) 122757df746SLinus Walleij #define MCI_STARTBITERRMASK (1 << 9) 1231c6a0718SPierre Ossman #define MCI_DATABLOCKENDMASK (1 << 10) 1241c6a0718SPierre Ossman #define MCI_CMDACTIVEMASK (1 << 11) 1251c6a0718SPierre Ossman #define MCI_TXACTIVEMASK (1 << 12) 1261c6a0718SPierre Ossman #define MCI_RXACTIVEMASK (1 << 13) 1271c6a0718SPierre Ossman #define MCI_TXFIFOHALFEMPTYMASK (1 << 14) 1281c6a0718SPierre Ossman #define MCI_RXFIFOHALFFULLMASK (1 << 15) 1291c6a0718SPierre Ossman #define MCI_TXFIFOFULLMASK (1 << 16) 1301c6a0718SPierre Ossman #define MCI_RXFIFOFULLMASK (1 << 17) 1311c6a0718SPierre Ossman #define MCI_TXFIFOEMPTYMASK (1 << 18) 1321c6a0718SPierre Ossman #define MCI_RXFIFOEMPTYMASK (1 << 19) 1331c6a0718SPierre Ossman #define MCI_TXDATAAVLBLMASK (1 << 20) 1341c6a0718SPierre Ossman #define MCI_RXDATAAVLBLMASK (1 << 21) 13549ac215eSLinus Walleij /* Extended status bits for the ST Micro variants */ 13649ac215eSLinus Walleij #define MCI_ST_SDIOITMASK (1 << 22) 13749ac215eSLinus Walleij #define MCI_ST_CEATAENDMASK (1 << 23) 1381c6a0718SPierre Ossman 1391c6a0718SPierre Ossman #define MMCIMASK1 0x040 1401c6a0718SPierre Ossman #define MMCIFIFOCNT 0x048 1411c6a0718SPierre Ossman #define MMCIFIFO 0x080 /* to 0x0bc */ 1421c6a0718SPierre Ossman 1431c6a0718SPierre Ossman #define MCI_IRQENABLE \ 1441c6a0718SPierre Ossman (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \ 1451c6a0718SPierre Ossman MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \ 146757df746SLinus Walleij MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_STARTBITERRMASK) 1471c6a0718SPierre Ossman 1482686b4b4SLinus Walleij /* These interrupts are directed to IRQ1 when two IRQ lines are available */ 1492686b4b4SLinus Walleij #define MCI_IRQ1MASK \ 1502686b4b4SLinus Walleij (MCI_RXFIFOHALFFULLMASK | MCI_RXDATAAVLBLMASK | \ 1512686b4b4SLinus Walleij MCI_TXFIFOHALFEMPTYMASK) 1522686b4b4SLinus Walleij 153859dd55dSUlf Hansson #define NR_SG 128 1541c6a0718SPierre Ossman 1551c6a0718SPierre Ossman struct clk; 1564956e109SRabin Vincent struct variant_data; 157c8ebae37SRussell King struct dma_chan; 1581c6a0718SPierre Ossman 15958c7ccbfSPer Forlin struct mmci_host_next { 16058c7ccbfSPer Forlin struct dma_async_tx_descriptor *dma_desc; 16158c7ccbfSPer Forlin struct dma_chan *dma_chan; 16258c7ccbfSPer Forlin s32 cookie; 16358c7ccbfSPer Forlin }; 16458c7ccbfSPer Forlin 1651c6a0718SPierre Ossman struct mmci_host { 166c8ebae37SRussell King phys_addr_t phybase; 1671c6a0718SPierre Ossman void __iomem *base; 1681c6a0718SPierre Ossman struct mmc_request *mrq; 1691c6a0718SPierre Ossman struct mmc_command *cmd; 1701c6a0718SPierre Ossman struct mmc_data *data; 1711c6a0718SPierre Ossman struct mmc_host *mmc; 1721c6a0718SPierre Ossman struct clk *clk; 17389001446SRussell King int gpio_cd; 17489001446SRussell King int gpio_wp; 175148b8b39SRabin Vincent int gpio_cd_irq; 1762686b4b4SLinus Walleij bool singleirq; 1771c6a0718SPierre Ossman 1781c6a0718SPierre Ossman spinlock_t lock; 1791c6a0718SPierre Ossman 1801c6a0718SPierre Ossman unsigned int mclk; 1811c6a0718SPierre Ossman unsigned int cclk; 1827437cfa5SUlf Hansson u32 pwr_reg; 1837437cfa5SUlf Hansson u32 clk_reg; 1846ef297f8SLinus Walleij struct mmci_platform_data *plat; 1854956e109SRabin Vincent struct variant_data *variant; 1861c6a0718SPierre Ossman 187cc30d60eSLinus Walleij u8 hw_designer; 188cc30d60eSLinus Walleij u8 hw_revision:4; 189cc30d60eSLinus Walleij 1901c6a0718SPierre Ossman struct timer_list timer; 1911c6a0718SPierre Ossman unsigned int oldstat; 1921c6a0718SPierre Ossman 1931c6a0718SPierre Ossman /* pio stuff */ 1944ce1d6cbSRabin Vincent struct sg_mapping_iter sg_miter; 1951c6a0718SPierre Ossman unsigned int size; 19634e84f39SLinus Walleij struct regulator *vcc; 197c8ebae37SRussell King 198c8ebae37SRussell King #ifdef CONFIG_DMA_ENGINE 199c8ebae37SRussell King /* DMA stuff */ 200c8ebae37SRussell King struct dma_chan *dma_current; 201c8ebae37SRussell King struct dma_chan *dma_rx_channel; 202c8ebae37SRussell King struct dma_chan *dma_tx_channel; 20358c7ccbfSPer Forlin struct dma_async_tx_descriptor *dma_desc_current; 20458c7ccbfSPer Forlin struct mmci_host_next next_data; 205c8ebae37SRussell King 206c8ebae37SRussell King #define dma_inprogress(host) ((host)->dma_current) 207c8ebae37SRussell King #else 208c8ebae37SRussell King #define dma_inprogress(host) (0) 209c8ebae37SRussell King #endif 2101c6a0718SPierre Ossman }; 2111c6a0718SPierre Ossman 212