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1 | /* |
2 | * Atmel MultiMedia Card Interface driver | |
3 | * | |
4 | * Copyright (C) 2004-2006 Atmel Corporation | |
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 | */ | |
19911895 NF |
10 | |
11 | /* | |
12 | * Superset of MCI IP registers integrated in Atmel AVR32 and AT91 Processors | |
7f72134c | 13 | * Registers and bitfields marked with [2] are only available in MCI2 |
19911895 NF |
14 | */ |
15 | ||
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16 | #ifndef __DRIVERS_MMC_ATMEL_MCI_H__ |
17 | #define __DRIVERS_MMC_ATMEL_MCI_H__ | |
18 | ||
19 | /* MCI Register Definitions */ | |
2c96a293 LD |
20 | #define ATMCI_CR 0x0000 /* Control */ |
21 | # define ATMCI_CR_MCIEN ( 1 << 0) /* MCI Enable */ | |
22 | # define ATMCI_CR_MCIDIS ( 1 << 1) /* MCI Disable */ | |
23 | # define ATMCI_CR_PWSEN ( 1 << 2) /* Power Save Enable */ | |
24 | # define ATMCI_CR_PWSDIS ( 1 << 3) /* Power Save Disable */ | |
25 | # define ATMCI_CR_SWRST ( 1 << 7) /* Software Reset */ | |
26 | #define ATMCI_MR 0x0004 /* Mode */ | |
27 | # define ATMCI_MR_CLKDIV(x) ((x) << 0) /* Clock Divider */ | |
28 | # define ATMCI_MR_PWSDIV(x) ((x) << 8) /* Power Saving Divider */ | |
29 | # define ATMCI_MR_RDPROOF ( 1 << 11) /* Read Proof */ | |
30 | # define ATMCI_MR_WRPROOF ( 1 << 12) /* Write Proof */ | |
31 | # define ATMCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */ | |
32 | # define ATMCI_MR_PDCPADV ( 1 << 14) /* Padding Value */ | |
33 | # define ATMCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */ | |
34 | #define ATMCI_DTOR 0x0008 /* Data Timeout */ | |
35 | # define ATMCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */ | |
36 | # define ATMCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */ | |
37 | #define ATMCI_SDCR 0x000c /* SD Card / SDIO */ | |
38 | # define ATMCI_SDCSEL_SLOT_A ( 0 << 0) /* Select SD slot A */ | |
39 | # define ATMCI_SDCSEL_SLOT_B ( 1 << 0) /* Select SD slot A */ | |
40 | # define ATMCI_SDCSEL_MASK ( 3 << 0) | |
41 | # define ATMCI_SDCBUS_1BIT ( 0 << 6) /* 1-bit data bus */ | |
42 | # define ATMCI_SDCBUS_4BIT ( 2 << 6) /* 4-bit data bus */ | |
43 | # define ATMCI_SDCBUS_8BIT ( 3 << 6) /* 8-bit data bus[2] */ | |
44 | # define ATMCI_SDCBUS_MASK ( 3 << 6) | |
45 | #define ATMCI_ARGR 0x0010 /* Command Argument */ | |
46 | #define ATMCI_CMDR 0x0014 /* Command */ | |
47 | # define ATMCI_CMDR_CMDNB(x) ((x) << 0) /* Command Opcode */ | |
48 | # define ATMCI_CMDR_RSPTYP_NONE ( 0 << 6) /* No response */ | |
49 | # define ATMCI_CMDR_RSPTYP_48BIT ( 1 << 6) /* 48-bit response */ | |
50 | # define ATMCI_CMDR_RSPTYP_136BIT ( 2 << 6) /* 136-bit response */ | |
51 | # define ATMCI_CMDR_SPCMD_INIT ( 1 << 8) /* Initialization command */ | |
52 | # define ATMCI_CMDR_SPCMD_SYNC ( 2 << 8) /* Synchronized command */ | |
53 | # define ATMCI_CMDR_SPCMD_INT ( 4 << 8) /* Interrupt command */ | |
54 | # define ATMCI_CMDR_SPCMD_INTRESP ( 5 << 8) /* Interrupt response */ | |
55 | # define ATMCI_CMDR_OPDCMD ( 1 << 11) /* Open Drain */ | |
56 | # define ATMCI_CMDR_MAXLAT_5CYC ( 0 << 12) /* Max latency 5 cycles */ | |
57 | # define ATMCI_CMDR_MAXLAT_64CYC ( 1 << 12) /* Max latency 64 cycles */ | |
58 | # define ATMCI_CMDR_START_XFER ( 1 << 16) /* Start data transfer */ | |
59 | # define ATMCI_CMDR_STOP_XFER ( 2 << 16) /* Stop data transfer */ | |
60 | # define ATMCI_CMDR_TRDIR_WRITE ( 0 << 18) /* Write data */ | |
61 | # define ATMCI_CMDR_TRDIR_READ ( 1 << 18) /* Read data */ | |
62 | # define ATMCI_CMDR_BLOCK ( 0 << 19) /* Single-block transfer */ | |
63 | # define ATMCI_CMDR_MULTI_BLOCK ( 1 << 19) /* Multi-block transfer */ | |
64 | # define ATMCI_CMDR_STREAM ( 2 << 19) /* MMC Stream transfer */ | |
65 | # define ATMCI_CMDR_SDIO_BYTE ( 4 << 19) /* SDIO Byte transfer */ | |
66 | # define ATMCI_CMDR_SDIO_BLOCK ( 5 << 19) /* SDIO Block transfer */ | |
67 | # define ATMCI_CMDR_SDIO_SUSPEND ( 1 << 24) /* SDIO Suspend Command */ | |
68 | # define ATMCI_CMDR_SDIO_RESUME ( 2 << 24) /* SDIO Resume Command */ | |
69 | #define ATMCI_BLKR 0x0018 /* Block */ | |
70 | # define ATMCI_BCNT(x) ((x) << 0) /* Data Block Count */ | |
71 | # define ATMCI_BLKLEN(x) ((x) << 16) /* Data Block Length */ | |
72 | #define ATMCI_CSTOR 0x001c /* Completion Signal Timeout[2] */ | |
73 | # define ATMCI_CSTOCYC(x) ((x) << 0) /* CST cycles */ | |
74 | # define ATMCI_CSTOMUL(x) ((x) << 4) /* CST multiplier */ | |
75 | #define ATMCI_RSPR 0x0020 /* Response 0 */ | |
76 | #define ATMCI_RSPR1 0x0024 /* Response 1 */ | |
77 | #define ATMCI_RSPR2 0x0028 /* Response 2 */ | |
78 | #define ATMCI_RSPR3 0x002c /* Response 3 */ | |
79 | #define ATMCI_RDR 0x0030 /* Receive Data */ | |
80 | #define ATMCI_TDR 0x0034 /* Transmit Data */ | |
81 | #define ATMCI_SR 0x0040 /* Status */ | |
82 | #define ATMCI_IER 0x0044 /* Interrupt Enable */ | |
83 | #define ATMCI_IDR 0x0048 /* Interrupt Disable */ | |
84 | #define ATMCI_IMR 0x004c /* Interrupt Mask */ | |
85 | # define ATMCI_CMDRDY ( 1 << 0) /* Command Ready */ | |
86 | # define ATMCI_RXRDY ( 1 << 1) /* Receiver Ready */ | |
87 | # define ATMCI_TXRDY ( 1 << 2) /* Transmitter Ready */ | |
88 | # define ATMCI_BLKE ( 1 << 3) /* Data Block Ended */ | |
89 | # define ATMCI_DTIP ( 1 << 4) /* Data Transfer In Progress */ | |
90 | # define ATMCI_NOTBUSY ( 1 << 5) /* Data Not Busy */ | |
91 | # define ATMCI_SDIOIRQA ( 1 << 8) /* SDIO IRQ in slot A */ | |
92 | # define ATMCI_SDIOIRQB ( 1 << 9) /* SDIO IRQ in slot B */ | |
93 | # define ATMCI_RINDE ( 1 << 16) /* Response Index Error */ | |
94 | # define ATMCI_RDIRE ( 1 << 17) /* Response Direction Error */ | |
95 | # define ATMCI_RCRCE ( 1 << 18) /* Response CRC Error */ | |
96 | # define ATMCI_RENDE ( 1 << 19) /* Response End Bit Error */ | |
97 | # define ATMCI_RTOE ( 1 << 20) /* Response Time-Out Error */ | |
98 | # define ATMCI_DCRCE ( 1 << 21) /* Data CRC Error */ | |
99 | # define ATMCI_DTOE ( 1 << 22) /* Data Time-Out Error */ | |
100 | # define ATMCI_OVRE ( 1 << 30) /* RX Overrun Error */ | |
101 | # define ATMCI_UNRE ( 1 << 31) /* TX Underrun Error */ | |
102 | #define ATMCI_DMA 0x0050 /* DMA Configuration[2] */ | |
103 | # define ATMCI_DMA_OFFSET(x) ((x) << 0) /* DMA Write Buffer Offset */ | |
104 | # define ATMCI_DMA_CHKSIZE(x) ((x) << 4) /* DMA Channel Read and Write Chunk Size */ | |
105 | # define ATMCI_DMAEN ( 1 << 8) /* DMA Hardware Handshaking Enable */ | |
106 | #define ATMCI_CFG 0x0054 /* Configuration[2] */ | |
107 | # define ATMCI_CFG_FIFOMODE_1DATA ( 1 << 0) /* MCI Internal FIFO control mode */ | |
108 | # define ATMCI_CFG_FERRCTRL_COR ( 1 << 4) /* Flow Error flag reset control mode */ | |
109 | # define ATMCI_CFG_HSMODE ( 1 << 8) /* High Speed Mode */ | |
110 | # define ATMCI_CFG_LSYNC ( 1 << 12) /* Synchronize on the last block */ | |
111 | #define ATMCI_WPMR 0x00e4 /* Write Protection Mode[2] */ | |
112 | # define ATMCI_WP_EN ( 1 << 0) /* WP Enable */ | |
113 | # define ATMCI_WP_KEY (0x4d4349 << 8) /* WP Key */ | |
114 | #define ATMCI_WPSR 0x00e8 /* Write Protection Status[2] */ | |
115 | # define ATMCI_GET_WP_VS(x) ((x) & 0x0f) | |
116 | # define ATMCI_GET_WP_VSRC(x) (((x) >> 8) & 0xffff) | |
117 | #define ATMCI_FIFO_APERTURE 0x0200 /* FIFO Aperture[2] */ | |
7d2be074 | 118 | |
7f72134c | 119 | /* This is not including the FIFO Aperture on MCI2 */ |
2c96a293 | 120 | #define ATMCI_REGS_SIZE 0x100 |
deec9ae3 | 121 | |
7d2be074 | 122 | /* Register access macros */ |
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123 | #define atmci_readl(port,reg) \ |
124 | __raw_readl((port)->regs + ATMCI_##reg) | |
125 | #define atmci_writel(port,reg,value) \ | |
126 | __raw_writel((value), (port)->regs + ATMCI_##reg) | |
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127 | |
128 | #endif /* __DRIVERS_MMC_ATMEL_MCI_H__ */ |