1/* 2 * linux/drivers/mmc/host/msmsdcc.h - QCT MSM7K SDC Controller 3 * 4 * Copyright (C) 2008 Google, All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * - Based on mmci.h 11 */ 12 13#ifndef _MSM_SDCC_H 14#define _MSM_SDCC_H 15 16#define MSMSDCC_CRCI_SDC1 6 17#define MSMSDCC_CRCI_SDC2 7 18#define MSMSDCC_CRCI_SDC3 12 19#define MSMSDCC_CRCI_SDC4 13 20 21#define MMCIPOWER 0x000 22#define MCI_PWR_OFF 0x00 23#define MCI_PWR_UP 0x02 24#define MCI_PWR_ON 0x03 25#define MCI_OD (1 << 6) 26 27#define MMCICLOCK 0x004 28#define MCI_CLK_ENABLE (1 << 8) 29#define MCI_CLK_PWRSAVE (1 << 9) 30#define MCI_CLK_WIDEBUS (1 << 10) 31#define MCI_CLK_FLOWENA (1 << 12) 32#define MCI_CLK_INVERTOUT (1 << 13) 33#define MCI_CLK_SELECTIN (1 << 14) 34 35#define MMCIARGUMENT 0x008 36#define MMCICOMMAND 0x00c 37#define MCI_CPSM_RESPONSE (1 << 6) 38#define MCI_CPSM_LONGRSP (1 << 7) 39#define MCI_CPSM_INTERRUPT (1 << 8) 40#define MCI_CPSM_PENDING (1 << 9) 41#define MCI_CPSM_ENABLE (1 << 10) 42#define MCI_CPSM_PROGENA (1 << 11) 43#define MCI_CSPM_DATCMD (1 << 12) 44#define MCI_CSPM_MCIABORT (1 << 13) 45#define MCI_CSPM_CCSENABLE (1 << 14) 46#define MCI_CSPM_CCSDISABLE (1 << 15) 47 48 49#define MMCIRESPCMD 0x010 50#define MMCIRESPONSE0 0x014 51#define MMCIRESPONSE1 0x018 52#define MMCIRESPONSE2 0x01c 53#define MMCIRESPONSE3 0x020 54#define MMCIDATATIMER 0x024 55#define MMCIDATALENGTH 0x028 56 57#define MMCIDATACTRL 0x02c 58#define MCI_DPSM_ENABLE (1 << 0) 59#define MCI_DPSM_DIRECTION (1 << 1) 60#define MCI_DPSM_MODE (1 << 2) 61#define MCI_DPSM_DMAENABLE (1 << 3) 62 63#define MMCIDATACNT 0x030 64#define MMCISTATUS 0x034 65#define MCI_CMDCRCFAIL (1 << 0) 66#define MCI_DATACRCFAIL (1 << 1) 67#define MCI_CMDTIMEOUT (1 << 2) 68#define MCI_DATATIMEOUT (1 << 3) 69#define MCI_TXUNDERRUN (1 << 4) 70#define MCI_RXOVERRUN (1 << 5) 71#define MCI_CMDRESPEND (1 << 6) 72#define MCI_CMDSENT (1 << 7) 73#define MCI_DATAEND (1 << 8) 74#define MCI_DATABLOCKEND (1 << 10) 75#define MCI_CMDACTIVE (1 << 11) 76#define MCI_TXACTIVE (1 << 12) 77#define MCI_RXACTIVE (1 << 13) 78#define MCI_TXFIFOHALFEMPTY (1 << 14) 79#define MCI_RXFIFOHALFFULL (1 << 15) 80#define MCI_TXFIFOFULL (1 << 16) 81#define MCI_RXFIFOFULL (1 << 17) 82#define MCI_TXFIFOEMPTY (1 << 18) 83#define MCI_RXFIFOEMPTY (1 << 19) 84#define MCI_TXDATAAVLBL (1 << 20) 85#define MCI_RXDATAAVLBL (1 << 21) 86#define MCI_SDIOINTR (1 << 22) 87#define MCI_PROGDONE (1 << 23) 88#define MCI_ATACMDCOMPL (1 << 24) 89#define MCI_SDIOINTOPER (1 << 25) 90#define MCI_CCSTIMEOUT (1 << 26) 91 92#define MMCICLEAR 0x038 93#define MCI_CMDCRCFAILCLR (1 << 0) 94#define MCI_DATACRCFAILCLR (1 << 1) 95#define MCI_CMDTIMEOUTCLR (1 << 2) 96#define MCI_DATATIMEOUTCLR (1 << 3) 97#define MCI_TXUNDERRUNCLR (1 << 4) 98#define MCI_RXOVERRUNCLR (1 << 5) 99#define MCI_CMDRESPENDCLR (1 << 6) 100#define MCI_CMDSENTCLR (1 << 7) 101#define MCI_DATAENDCLR (1 << 8) 102#define MCI_DATABLOCKENDCLR (1 << 10) 103 104#define MMCIMASK0 0x03c 105#define MCI_CMDCRCFAILMASK (1 << 0) 106#define MCI_DATACRCFAILMASK (1 << 1) 107#define MCI_CMDTIMEOUTMASK (1 << 2) 108#define MCI_DATATIMEOUTMASK (1 << 3) 109#define MCI_TXUNDERRUNMASK (1 << 4) 110#define MCI_RXOVERRUNMASK (1 << 5) 111#define MCI_CMDRESPENDMASK (1 << 6) 112#define MCI_CMDSENTMASK (1 << 7) 113#define MCI_DATAENDMASK (1 << 8) 114#define MCI_DATABLOCKENDMASK (1 << 10) 115#define MCI_CMDACTIVEMASK (1 << 11) 116#define MCI_TXACTIVEMASK (1 << 12) 117#define MCI_RXACTIVEMASK (1 << 13) 118#define MCI_TXFIFOHALFEMPTYMASK (1 << 14) 119#define MCI_RXFIFOHALFFULLMASK (1 << 15) 120#define MCI_TXFIFOFULLMASK (1 << 16) 121#define MCI_RXFIFOFULLMASK (1 << 17) 122#define MCI_TXFIFOEMPTYMASK (1 << 18) 123#define MCI_RXFIFOEMPTYMASK (1 << 19) 124#define MCI_TXDATAAVLBLMASK (1 << 20) 125#define MCI_RXDATAAVLBLMASK (1 << 21) 126#define MCI_SDIOINTMASK (1 << 22) 127#define MCI_PROGDONEMASK (1 << 23) 128#define MCI_ATACMDCOMPLMASK (1 << 24) 129#define MCI_SDIOINTOPERMASK (1 << 25) 130#define MCI_CCSTIMEOUTMASK (1 << 26) 131 132#define MMCIMASK1 0x040 133#define MMCIFIFOCNT 0x044 134#define MCICCSTIMER 0x058 135 136#define MMCIFIFO 0x080 /* to 0x0bc */ 137 138#define MCI_IRQENABLE \ 139 (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \ 140 MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \ 141 MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATAENDMASK) 142 143/* 144 * The size of the FIFO in bytes. 145 */ 146#define MCI_FIFOSIZE (16*4) 147 148#define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2) 149 150#define NR_SG 32 151 152struct clk; 153 154struct msmsdcc_nc_dmadata { 155 dmov_box cmd[NR_SG]; 156 uint32_t cmdptr; 157}; 158 159struct msmsdcc_dma_data { 160 struct msmsdcc_nc_dmadata *nc; 161 dma_addr_t nc_busaddr; 162 dma_addr_t cmd_busaddr; 163 dma_addr_t cmdptr_busaddr; 164 165 struct msm_dmov_cmd hdr; 166 enum dma_data_direction dir; 167 168 struct scatterlist *sg; 169 int num_ents; 170 171 int channel; 172 struct msmsdcc_host *host; 173 int busy; /* Set if DM is busy */ 174 int active; 175}; 176 177struct msmsdcc_pio_data { 178 struct scatterlist *sg; 179 unsigned int sg_len; 180 unsigned int sg_off; 181}; 182 183struct msmsdcc_curr_req { 184 struct mmc_request *mrq; 185 struct mmc_command *cmd; 186 struct mmc_data *data; 187 unsigned int xfer_size; /* Total data size */ 188 unsigned int xfer_remain; /* Bytes remaining to send */ 189 unsigned int data_xfered; /* Bytes acked by BLKEND irq */ 190 int got_dataend; 191 int got_datablkend; 192 int user_pages; 193}; 194 195struct msmsdcc_stats { 196 unsigned int reqs; 197 unsigned int cmds; 198 unsigned int cmdpoll_hits; 199 unsigned int cmdpoll_misses; 200}; 201 202struct msmsdcc_host { 203 struct resource *cmd_irqres; 204 struct resource *pio_irqres; 205 struct resource *memres; 206 struct resource *dmares; 207 void __iomem *base; 208 int pdev_id; 209 unsigned int stat_irq; 210 211 struct msmsdcc_curr_req curr; 212 213 struct mmc_host *mmc; 214 struct clk *clk; /* main MMC bus clock */ 215 struct clk *pclk; /* SDCC peripheral bus clock */ 216 unsigned int clks_on; /* set if clocks are enabled */ 217 struct timer_list busclk_timer; 218 219 unsigned int eject; /* eject state */ 220 221 spinlock_t lock; 222 223 unsigned int clk_rate; /* Current clock rate */ 224 unsigned int pclk_rate; 225 226 u32 pwr; 227 u32 saved_irq0mask; /* MMCIMASK0 reg value */ 228 struct msm_mmc_platform_data *plat; 229 230 struct timer_list timer; 231 unsigned int oldstat; 232 233 struct msmsdcc_dma_data dma; 234 struct msmsdcc_pio_data pio; 235 int cmdpoll; 236 struct msmsdcc_stats stats; 237 238 /* Command parameters */ 239 unsigned int cmd_timeout; 240 unsigned int cmd_pio_irqmask; 241 unsigned int cmd_datactrl; 242 struct mmc_command *cmd_cmd; 243 u32 cmd_c; 244 245}; 246 247#endif 248