2 * Atmel MultiMedia Card Interface driver
4 * Copyright (C) 2004-2006 Atmel Corporation
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.
12 * Superset of MCI IP registers integrated in Atmel AVR32 and AT91 Processors
13 * Registers and bitfields marked with [2] are only available in MCI2
16 #ifndef __DRIVERS_MMC_ATMEL_MCI_H__
17 #define __DRIVERS_MMC_ATMEL_MCI_H__
19 /* MCI Register Definitions */
20 #define MCI_CR 0x0000 /* Control */
21 # define MCI_CR_MCIEN ( 1 << 0) /* MCI Enable */
22 # define MCI_CR_MCIDIS ( 1 << 1) /* MCI Disable */
23 # define MCI_CR_PWSEN ( 1 << 2) /* Power Save Enable */
24 # define MCI_CR_PWSDIS ( 1 << 3) /* Power Save Disable */
25 # define MCI_CR_SWRST ( 1 << 7) /* Software Reset */
26 #define MCI_MR 0x0004 /* Mode */
27 # define MCI_MR_CLKDIV(x) ((x) << 0) /* Clock Divider */
28 # define MCI_MR_PWSDIV(x) ((x) << 8) /* Power Saving Divider */
29 # define MCI_MR_RDPROOF ( 1 << 11) /* Read Proof */
30 # define MCI_MR_WRPROOF ( 1 << 12) /* Write Proof */
31 # define MCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */
32 # define MCI_MR_PDCPADV ( 1 << 14) /* Padding Value */
33 # define MCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */
34 #define MCI_DTOR 0x0008 /* Data Timeout */
35 # define MCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */
36 # define MCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */
37 #define MCI_SDCR 0x000c /* SD Card / SDIO */
38 # define MCI_SDCSEL_SLOT_A ( 0 << 0) /* Select SD slot A */
39 # define MCI_SDCSEL_SLOT_B ( 1 << 0) /* Select SD slot A */
40 # define MCI_SDCSEL_MASK ( 3 << 0)
41 # define MCI_SDCBUS_1BIT ( 0 << 6) /* 1-bit data bus */
42 # define MCI_SDCBUS_4BIT ( 2 << 6) /* 4-bit data bus */
43 # define MCI_SDCBUS_8BIT ( 3 << 6) /* 8-bit data bus[2] */
44 # define MCI_SDCBUS_MASK ( 3 << 6)
45 #define MCI_ARGR 0x0010 /* Command Argument */
46 #define MCI_CMDR 0x0014 /* Command */
47 # define MCI_CMDR_CMDNB(x) ((x) << 0) /* Command Opcode */
48 # define MCI_CMDR_RSPTYP_NONE ( 0 << 6) /* No response */
49 # define MCI_CMDR_RSPTYP_48BIT ( 1 << 6) /* 48-bit response */
50 # define MCI_CMDR_RSPTYP_136BIT ( 2 << 6) /* 136-bit response */
51 # define MCI_CMDR_SPCMD_INIT ( 1 << 8) /* Initialization command */
52 # define MCI_CMDR_SPCMD_SYNC ( 2 << 8) /* Synchronized command */
53 # define MCI_CMDR_SPCMD_INT ( 4 << 8) /* Interrupt command */
54 # define MCI_CMDR_SPCMD_INTRESP ( 5 << 8) /* Interrupt response */
55 # define MCI_CMDR_OPDCMD ( 1 << 11) /* Open Drain */
56 # define MCI_CMDR_MAXLAT_5CYC ( 0 << 12) /* Max latency 5 cycles */
57 # define MCI_CMDR_MAXLAT_64CYC ( 1 << 12) /* Max latency 64 cycles */
58 # define MCI_CMDR_START_XFER ( 1 << 16) /* Start data transfer */
59 # define MCI_CMDR_STOP_XFER ( 2 << 16) /* Stop data transfer */
60 # define MCI_CMDR_TRDIR_WRITE ( 0 << 18) /* Write data */
61 # define MCI_CMDR_TRDIR_READ ( 1 << 18) /* Read data */
62 # define MCI_CMDR_BLOCK ( 0 << 19) /* Single-block transfer */
63 # define MCI_CMDR_MULTI_BLOCK ( 1 << 19) /* Multi-block transfer */
64 # define MCI_CMDR_STREAM ( 2 << 19) /* MMC Stream transfer */
65 # define MCI_CMDR_SDIO_BYTE ( 4 << 19) /* SDIO Byte transfer */
66 # define MCI_CMDR_SDIO_BLOCK ( 5 << 19) /* SDIO Block transfer */
67 # define MCI_CMDR_SDIO_SUSPEND ( 1 << 24) /* SDIO Suspend Command */
68 # define MCI_CMDR_SDIO_RESUME ( 2 << 24) /* SDIO Resume Command */
69 #define MCI_BLKR 0x0018 /* Block */
70 # define MCI_BCNT(x) ((x) << 0) /* Data Block Count */
71 # define MCI_BLKLEN(x) ((x) << 16) /* Data Block Length */
72 #define MCI_CSTOR 0x001c /* Completion Signal Timeout[2] */
73 # define MCI_CSTOCYC(x) ((x) << 0) /* CST cycles */
74 # define MCI_CSTOMUL(x) ((x) << 4) /* CST multiplier */
75 #define MCI_RSPR 0x0020 /* Response 0 */
76 #define MCI_RSPR1 0x0024 /* Response 1 */
77 #define MCI_RSPR2 0x0028 /* Response 2 */
78 #define MCI_RSPR3 0x002c /* Response 3 */
79 #define MCI_RDR 0x0030 /* Receive Data */
80 #define MCI_TDR 0x0034 /* Transmit Data */
81 #define MCI_SR 0x0040 /* Status */
82 #define MCI_IER 0x0044 /* Interrupt Enable */
83 #define MCI_IDR 0x0048 /* Interrupt Disable */
84 #define MCI_IMR 0x004c /* Interrupt Mask */
85 # define MCI_CMDRDY ( 1 << 0) /* Command Ready */
86 # define MCI_RXRDY ( 1 << 1) /* Receiver Ready */
87 # define MCI_TXRDY ( 1 << 2) /* Transmitter Ready */
88 # define MCI_BLKE ( 1 << 3) /* Data Block Ended */
89 # define MCI_DTIP ( 1 << 4) /* Data Transfer In Progress */
90 # define MCI_NOTBUSY ( 1 << 5) /* Data Not Busy */
91 # define MCI_SDIOIRQA ( 1 << 8) /* SDIO IRQ in slot A */
92 # define MCI_SDIOIRQB ( 1 << 9) /* SDIO IRQ in slot B */
93 # define MCI_RINDE ( 1 << 16) /* Response Index Error */
94 # define MCI_RDIRE ( 1 << 17) /* Response Direction Error */
95 # define MCI_RCRCE ( 1 << 18) /* Response CRC Error */
96 # define MCI_RENDE ( 1 << 19) /* Response End Bit Error */
97 # define MCI_RTOE ( 1 << 20) /* Response Time-Out Error */
98 # define MCI_DCRCE ( 1 << 21) /* Data CRC Error */
99 # define MCI_DTOE ( 1 << 22) /* Data Time-Out Error */
100 # define MCI_OVRE ( 1 << 30) /* RX Overrun Error */
101 # define MCI_UNRE ( 1 << 31) /* TX Underrun Error */
102 #define MCI_DMA 0x0050 /* DMA Configuration[2] */
103 # define MCI_DMA_OFFSET(x) ((x) << 0) /* DMA Write Buffer Offset */
104 # define MCI_DMA_CHKSIZE(x) ((x) << 4) /* DMA Channel Read and Write Chunk Size */
105 # define MCI_DMAEN ( 1 << 8) /* DMA Hardware Handshaking Enable */
106 #define MCI_CFG 0x0054 /* Configuration[2] */
107 # define MCI_CFG_FIFOMODE_1DATA ( 1 << 0) /* MCI Internal FIFO control mode */
108 # define MCI_CFG_FERRCTRL_COR ( 1 << 4) /* Flow Error flag reset control mode */
109 # define MCI_CFG_HSMODE ( 1 << 8) /* High Speed Mode */
110 # define MCI_CFG_LSYNC ( 1 << 12) /* Synchronize on the last block */
111 #define MCI_WPMR 0x00e4 /* Write Protection Mode[2] */
112 # define MCI_WP_EN ( 1 << 0) /* WP Enable */
113 # define MCI_WP_KEY (0x4d4349 << 8) /* WP Key */
114 #define MCI_WPSR 0x00e8 /* Write Protection Status[2] */
115 # define MCI_GET_WP_VS(x) ((x) & 0x0f)
116 # define MCI_GET_WP_VSRC(x) (((x) >> 8) & 0xffff)
117 #define MCI_FIFO_APERTURE 0x0200 /* FIFO Aperture[2] */
119 /* This is not including the FIFO Aperture on MCI2 */
120 #define MCI_REGS_SIZE 0x100
122 /* Register access macros */
123 #define mci_readl(port,reg) \
124 __raw_readl((port)->regs + MCI_##reg)
125 #define mci_writel(port,reg,value) \
126 __raw_writel((value), (port)->regs + MCI_##reg)
128 #endif /* __DRIVERS_MMC_ATMEL_MCI_H__ */
