1 /* Definitons for use with the tmio_mmc.c
3 * (c) 2004 Ian Molton <spyro@f2s.com>
4 * (c) 2007 Ian Molton <spyro@f2s.com>
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 #include <linux/highmem.h>
14 #define CTL_SD_CMD 0x00
15 #define CTL_ARG_REG 0x04
16 #define CTL_STOP_INTERNAL_ACTION 0x08
17 #define CTL_XFER_BLK_COUNT 0xa
18 #define CTL_RESPONSE 0x0c
19 #define CTL_STATUS 0x1c
20 #define CTL_IRQ_MASK 0x20
21 #define CTL_SD_CARD_CLK_CTL 0x24
22 #define CTL_SD_XFER_LEN 0x26
23 #define CTL_SD_MEM_CARD_OPT 0x28
24 #define CTL_SD_ERROR_DETAIL_STATUS 0x2c
25 #define CTL_SD_DATA_PORT 0x30
26 #define CTL_TRANSACTION_CTL 0x34
27 #define CTL_RESET_SD 0xe0
28 #define CTL_SDIO_REGS 0x100
29 #define CTL_CLK_AND_WAIT_CTL 0x138
30 #define CTL_RESET_SDIO 0x1e0
32 /* Definitions for values the CTRL_STATUS register can take. */
33 #define TMIO_STAT_CMDRESPEND 0x00000001
34 #define TMIO_STAT_DATAEND 0x00000004
35 #define TMIO_STAT_CARD_REMOVE 0x00000008
36 #define TMIO_STAT_CARD_INSERT 0x00000010
37 #define TMIO_STAT_SIGSTATE 0x00000020
38 #define TMIO_STAT_WRPROTECT 0x00000080
39 #define TMIO_STAT_CARD_REMOVE_A 0x00000100
40 #define TMIO_STAT_CARD_INSERT_A 0x00000200
41 #define TMIO_STAT_SIGSTATE_A 0x00000400
42 #define TMIO_STAT_CMD_IDX_ERR 0x00010000
43 #define TMIO_STAT_CRCFAIL 0x00020000
44 #define TMIO_STAT_STOPBIT_ERR 0x00040000
45 #define TMIO_STAT_DATATIMEOUT 0x00080000
46 #define TMIO_STAT_RXOVERFLOW 0x00100000
47 #define TMIO_STAT_TXUNDERRUN 0x00200000
48 #define TMIO_STAT_CMDTIMEOUT 0x00400000
49 #define TMIO_STAT_RXRDY 0x01000000
50 #define TMIO_STAT_TXRQ 0x02000000
51 #define TMIO_STAT_ILL_FUNC 0x20000000
52 #define TMIO_STAT_CMD_BUSY 0x40000000
53 #define TMIO_STAT_ILL_ACCESS 0x80000000
55 /* Define some IRQ masks */
56 /* This is the mask used at reset by the chip */
57 #define TMIO_MASK_ALL 0x837f031d
58 #define TMIO_MASK_READOP (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
59 #define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
60 #define TMIO_MASK_CMD (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
61 TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
62 #define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
65 #define enable_mmc_irqs(host, i) \
68 mask = sd_ctrl_read32((host), CTL_IRQ_MASK); \
69 mask &= ~((i) & TMIO_MASK_IRQ); \
70 sd_ctrl_write32((host), CTL_IRQ_MASK, mask); \
73 #define disable_mmc_irqs(host, i) \
76 mask = sd_ctrl_read32((host), CTL_IRQ_MASK); \
77 mask |= ((i) & TMIO_MASK_IRQ); \
78 sd_ctrl_write32((host), CTL_IRQ_MASK, mask); \
81 #define ack_mmc_irqs(host, i) \
84 mask = sd_ctrl_read32((host), CTL_STATUS); \
85 mask &= ~((i) & TMIO_MASK_IRQ); \
86 sd_ctrl_write32((host), CTL_STATUS, mask); \
90 struct tmio_mmc_host
{
92 unsigned long bus_shift
;
93 struct mmc_command
*cmd
;
94 struct mmc_request
*mrq
;
95 struct mmc_data
*data
;
99 /* Callbacks for clock / power control */
100 void (*set_pwr
)(struct platform_device
*host
, int state
);
101 void (*set_clk_div
)(struct platform_device
*host
, int state
);
103 /* pio related stuff */
104 struct scatterlist
*sg_ptr
;
108 struct platform_device
*pdev
;
111 #include <linux/io.h>
113 static inline u16
sd_ctrl_read16(struct tmio_mmc_host
*host
, int addr
)
115 return readw(host
->ctl
+ (addr
<< host
->bus_shift
));
118 static inline void sd_ctrl_read16_rep(struct tmio_mmc_host
*host
, int addr
,
121 readsw(host
->ctl
+ (addr
<< host
->bus_shift
), buf
, count
);
124 static inline u32
sd_ctrl_read32(struct tmio_mmc_host
*host
, int addr
)
126 return readw(host
->ctl
+ (addr
<< host
->bus_shift
)) |
127 readw(host
->ctl
+ ((addr
+ 2) << host
->bus_shift
)) << 16;
130 static inline void sd_ctrl_write16(struct tmio_mmc_host
*host
, int addr
,
133 writew(val
, host
->ctl
+ (addr
<< host
->bus_shift
));
136 static inline void sd_ctrl_write16_rep(struct tmio_mmc_host
*host
, int addr
,
139 writesw(host
->ctl
+ (addr
<< host
->bus_shift
), buf
, count
);
142 static inline void sd_ctrl_write32(struct tmio_mmc_host
*host
, int addr
,
145 writew(val
, host
->ctl
+ (addr
<< host
->bus_shift
));
146 writew(val
>> 16, host
->ctl
+ ((addr
+ 2) << host
->bus_shift
));
149 #include <linux/scatterlist.h>
150 #include <linux/blkdev.h>
152 static inline void tmio_mmc_init_sg(struct tmio_mmc_host
*host
,
153 struct mmc_data
*data
)
155 host
->sg_len
= data
->sg_len
;
156 host
->sg_ptr
= data
->sg
;
160 static inline int tmio_mmc_next_sg(struct tmio_mmc_host
*host
)
162 host
->sg_ptr
= sg_next(host
->sg_ptr
);
164 return --host
->sg_len
;
167 static inline char *tmio_mmc_kmap_atomic(struct tmio_mmc_host
*host
,
168 unsigned long *flags
)
170 struct scatterlist
*sg
= host
->sg_ptr
;
172 local_irq_save(*flags
);
173 return kmap_atomic(sg_page(sg
), KM_BIO_SRC_IRQ
) + sg
->offset
;
176 static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host
*host
,
177 unsigned long *flags
)
179 kunmap_atomic(sg_page(host
->sg_ptr
), KM_BIO_SRC_IRQ
);
180 local_irq_restore(*flags
);
183 #ifdef CONFIG_MMC_DEBUG
185 #define STATUS_TO_TEXT(a) \
187 if (status & TMIO_STAT_##a) \
191 void pr_debug_status(u32 status
)
193 printk(KERN_DEBUG
"status: %08x = ", status
);
194 STATUS_TO_TEXT(CARD_REMOVE
);
195 STATUS_TO_TEXT(CARD_INSERT
);
196 STATUS_TO_TEXT(SIGSTATE
);
197 STATUS_TO_TEXT(WRPROTECT
);
198 STATUS_TO_TEXT(CARD_REMOVE_A
);
199 STATUS_TO_TEXT(CARD_INSERT_A
);
200 STATUS_TO_TEXT(SIGSTATE_A
);
201 STATUS_TO_TEXT(CMD_IDX_ERR
);
202 STATUS_TO_TEXT(STOPBIT_ERR
);
203 STATUS_TO_TEXT(ILL_FUNC
);
204 STATUS_TO_TEXT(CMD_BUSY
);
205 STATUS_TO_TEXT(CMDRESPEND
);
206 STATUS_TO_TEXT(DATAEND
);
207 STATUS_TO_TEXT(CRCFAIL
);
208 STATUS_TO_TEXT(DATATIMEOUT
);
209 STATUS_TO_TEXT(CMDTIMEOUT
);
210 STATUS_TO_TEXT(RXOVERFLOW
);
211 STATUS_TO_TEXT(TXUNDERRUN
);
212 STATUS_TO_TEXT(RXRDY
);
213 STATUS_TO_TEXT(TXRQ
);
214 STATUS_TO_TEXT(ILL_ACCESS
);
219 #define pr_debug_status(s) do { } while (0)