San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 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| \ |
Sahitya Tummala | d5137bd | 2010-12-08 15:03:04 +0530 | [diff] [blame] | 141 | MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATAENDMASK|MCI_PROGDONEMASK) |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 142 | |
Sahitya Tummala | 4a268e0 | 2011-05-02 18:09:18 +0530 | [diff] [blame] | 143 | #define MCI_IRQ_PIO \ |
| 144 | (MCI_RXDATAAVLBLMASK | MCI_TXDATAAVLBLMASK | MCI_RXFIFOEMPTYMASK | \ |
| 145 | MCI_TXFIFOEMPTYMASK | MCI_RXFIFOFULLMASK | MCI_TXFIFOFULLMASK | \ |
| 146 | MCI_RXFIFOHALFFULLMASK | MCI_TXFIFOHALFEMPTYMASK | \ |
| 147 | MCI_RXACTIVEMASK | MCI_TXACTIVEMASK) |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 148 | /* |
| 149 | * The size of the FIFO in bytes. |
| 150 | */ |
| 151 | #define MCI_FIFOSIZE (16*4) |
| 152 | |
| 153 | #define MCI_FIFOHALFSIZE (MCI_FIFOSIZE / 2) |
| 154 | |
| 155 | #define NR_SG 32 |
| 156 | |
| 157 | struct clk; |
| 158 | |
| 159 | struct msmsdcc_nc_dmadata { |
| 160 | dmov_box cmd[NR_SG]; |
| 161 | uint32_t cmdptr; |
| 162 | }; |
| 163 | |
| 164 | struct msmsdcc_dma_data { |
| 165 | struct msmsdcc_nc_dmadata *nc; |
| 166 | dma_addr_t nc_busaddr; |
| 167 | dma_addr_t cmd_busaddr; |
| 168 | dma_addr_t cmdptr_busaddr; |
| 169 | |
| 170 | struct msm_dmov_cmd hdr; |
| 171 | enum dma_data_direction dir; |
| 172 | |
| 173 | struct scatterlist *sg; |
| 174 | int num_ents; |
| 175 | |
| 176 | int channel; |
| 177 | struct msmsdcc_host *host; |
| 178 | int busy; /* Set if DM is busy */ |
San Mehat | 56a8b5b | 2009-11-21 12:29:46 -0800 | [diff] [blame] | 179 | int active; |
Sahitya Tummala | 62612cf | 2010-12-08 15:03:03 +0530 | [diff] [blame] | 180 | unsigned int result; |
| 181 | struct msm_dmov_errdata err; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 182 | }; |
| 183 | |
| 184 | struct msmsdcc_pio_data { |
| 185 | struct scatterlist *sg; |
| 186 | unsigned int sg_len; |
| 187 | unsigned int sg_off; |
| 188 | }; |
| 189 | |
| 190 | struct msmsdcc_curr_req { |
| 191 | struct mmc_request *mrq; |
| 192 | struct mmc_command *cmd; |
| 193 | struct mmc_data *data; |
| 194 | unsigned int xfer_size; /* Total data size */ |
| 195 | unsigned int xfer_remain; /* Bytes remaining to send */ |
| 196 | unsigned int data_xfered; /* Bytes acked by BLKEND irq */ |
| 197 | int got_dataend; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 198 | int user_pages; |
| 199 | }; |
| 200 | |
| 201 | struct msmsdcc_stats { |
| 202 | unsigned int reqs; |
| 203 | unsigned int cmds; |
| 204 | unsigned int cmdpoll_hits; |
| 205 | unsigned int cmdpoll_misses; |
| 206 | }; |
| 207 | |
| 208 | struct msmsdcc_host { |
| 209 | struct resource *cmd_irqres; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 210 | struct resource *memres; |
| 211 | struct resource *dmares; |
| 212 | void __iomem *base; |
| 213 | int pdev_id; |
| 214 | unsigned int stat_irq; |
| 215 | |
| 216 | struct msmsdcc_curr_req curr; |
| 217 | |
| 218 | struct mmc_host *mmc; |
| 219 | struct clk *clk; /* main MMC bus clock */ |
| 220 | struct clk *pclk; /* SDCC peripheral bus clock */ |
| 221 | unsigned int clks_on; /* set if clocks are enabled */ |
San Mehat | 865c8064 | 2009-11-13 13:42:06 -0800 | [diff] [blame] | 222 | struct timer_list busclk_timer; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 223 | |
| 224 | unsigned int eject; /* eject state */ |
| 225 | |
| 226 | spinlock_t lock; |
| 227 | |
| 228 | unsigned int clk_rate; /* Current clock rate */ |
| 229 | unsigned int pclk_rate; |
| 230 | |
| 231 | u32 pwr; |
| 232 | u32 saved_irq0mask; /* MMCIMASK0 reg value */ |
Sahitya Tummala | b5d643d | 2010-07-29 16:55:34 +0530 | [diff] [blame] | 233 | struct msm_mmc_platform_data *plat; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 234 | |
| 235 | struct timer_list timer; |
| 236 | unsigned int oldstat; |
| 237 | |
| 238 | struct msmsdcc_dma_data dma; |
| 239 | struct msmsdcc_pio_data pio; |
| 240 | int cmdpoll; |
| 241 | struct msmsdcc_stats stats; |
San Mehat | 56a8b5b | 2009-11-21 12:29:46 -0800 | [diff] [blame] | 242 | |
Sahitya Tummala | 62612cf | 2010-12-08 15:03:03 +0530 | [diff] [blame] | 243 | struct tasklet_struct dma_tlet; |
San Mehat | 56a8b5b | 2009-11-21 12:29:46 -0800 | [diff] [blame] | 244 | /* Command parameters */ |
| 245 | unsigned int cmd_timeout; |
| 246 | unsigned int cmd_pio_irqmask; |
| 247 | unsigned int cmd_datactrl; |
| 248 | struct mmc_command *cmd_cmd; |
| 249 | u32 cmd_c; |
Sahitya Tummala | 7a89248 | 2011-01-18 11:22:49 +0530 | [diff] [blame] | 250 | bool gpio_config_status; |
San Mehat | 56a8b5b | 2009-11-21 12:29:46 -0800 | [diff] [blame] | 251 | |
Sahitya Tummala | d5137bd | 2010-12-08 15:03:04 +0530 | [diff] [blame] | 252 | bool prog_scan; |
| 253 | bool prog_enable; |
San Mehat | 9d2bd73 | 2009-09-22 16:44:22 -0700 | [diff] [blame] | 254 | }; |
| 255 | |
| 256 | #endif |