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>
15 #define CNF_CTL_BASE 0x10
16 #define CNF_INT_PIN 0x3d
17 #define CNF_STOP_CLK_CTL 0x40
18 #define CNF_GCLK_CTL 0x41
19 #define CNF_SD_CLK_MODE 0x42
20 #define CNF_PIN_STATUS 0x44
21 #define CNF_PWR_CTL_1 0x48
22 #define CNF_PWR_CTL_2 0x49
23 #define CNF_PWR_CTL_3 0x4a
24 #define CNF_CARD_DETECT_MODE 0x4c
25 #define CNF_SD_SLOT 0x50
26 #define CNF_EXT_GCLK_CTL_1 0xf0
27 #define CNF_EXT_GCLK_CTL_2 0xf1
28 #define CNF_EXT_GCLK_CTL_3 0xf9
29 #define CNF_SD_LED_EN_1 0xfa
30 #define CNF_SD_LED_EN_2 0xfe
32 #define SDCREN 0x2 /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/
34 #define CTL_SD_CMD 0x00
35 #define CTL_ARG_REG 0x04
36 #define CTL_STOP_INTERNAL_ACTION 0x08
37 #define CTL_XFER_BLK_COUNT 0xa
38 #define CTL_RESPONSE 0x0c
39 #define CTL_STATUS 0x1c
40 #define CTL_IRQ_MASK 0x20
41 #define CTL_SD_CARD_CLK_CTL 0x24
42 #define CTL_SD_XFER_LEN 0x26
43 #define CTL_SD_MEM_CARD_OPT 0x28
44 #define CTL_SD_ERROR_DETAIL_STATUS 0x2c
45 #define CTL_SD_DATA_PORT 0x30
46 #define CTL_TRANSACTION_CTL 0x34
47 #define CTL_RESET_SD 0xe0
48 #define CTL_SDIO_REGS 0x100
49 #define CTL_CLK_AND_WAIT_CTL 0x138
50 #define CTL_RESET_SDIO 0x1e0
52 /* Definitions for values the CTRL_STATUS register can take. */
53 #define TMIO_STAT_CMDRESPEND 0x00000001
54 #define TMIO_STAT_DATAEND 0x00000004
55 #define TMIO_STAT_CARD_REMOVE 0x00000008
56 #define TMIO_STAT_CARD_INSERT 0x00000010
57 #define TMIO_STAT_SIGSTATE 0x00000020
58 #define TMIO_STAT_WRPROTECT 0x00000080
59 #define TMIO_STAT_CARD_REMOVE_A 0x00000100
60 #define TMIO_STAT_CARD_INSERT_A 0x00000200
61 #define TMIO_STAT_SIGSTATE_A 0x00000400
62 #define TMIO_STAT_CMD_IDX_ERR 0x00010000
63 #define TMIO_STAT_CRCFAIL 0x00020000
64 #define TMIO_STAT_STOPBIT_ERR 0x00040000
65 #define TMIO_STAT_DATATIMEOUT 0x00080000
66 #define TMIO_STAT_RXOVERFLOW 0x00100000
67 #define TMIO_STAT_TXUNDERRUN 0x00200000
68 #define TMIO_STAT_CMDTIMEOUT 0x00400000
69 #define TMIO_STAT_RXRDY 0x01000000
70 #define TMIO_STAT_TXRQ 0x02000000
71 #define TMIO_STAT_ILL_FUNC 0x20000000
72 #define TMIO_STAT_CMD_BUSY 0x40000000
73 #define TMIO_STAT_ILL_ACCESS 0x80000000
75 /* Define some IRQ masks */
76 /* This is the mask used at reset by the chip */
77 #define TMIO_MASK_ALL 0x837f031d
78 #define TMIO_MASK_READOP (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND | \
79 TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
80 #define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND | \
81 TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
82 #define TMIO_MASK_CMD (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
83 TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
84 #define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
86 #define enable_mmc_irqs(ctl, i) \
89 mask = tmio_ioread32((ctl) + CTL_IRQ_MASK); \
90 mask &= ~((i) & TMIO_MASK_IRQ); \
91 tmio_iowrite32(mask, (ctl) + CTL_IRQ_MASK); \
94 #define disable_mmc_irqs(ctl, i) \
97 mask = tmio_ioread32((ctl) + CTL_IRQ_MASK); \
98 mask |= ((i) & TMIO_MASK_IRQ); \
99 tmio_iowrite32(mask, (ctl) + CTL_IRQ_MASK); \
102 #define ack_mmc_irqs(ctl, i) \
105 mask = tmio_ioread32((ctl) + CTL_STATUS); \
106 mask &= ~((i) & TMIO_MASK_IRQ); \
107 tmio_iowrite32(mask, (ctl) + CTL_STATUS); \
111 struct tmio_mmc_host {
114 struct mmc_command *cmd;
115 struct mmc_request *mrq;
116 struct mmc_data *data;
117 struct mmc_host *mmc;
120 /* pio related stuff */
121 struct scatterlist *sg_ptr;
126 #include <linux/scatterlist.h>
127 #include <linux/blkdev.h>
129 static inline void tmio_mmc_init_sg(struct tmio_mmc_host *host,
130 struct mmc_data *data)
132 host->sg_len = data->sg_len;
133 host->sg_ptr = data->sg;
137 static inline int tmio_mmc_next_sg(struct tmio_mmc_host *host)
139 host->sg_ptr = sg_next(host->sg_ptr);
141 return --host->sg_len;
144 static inline char *tmio_mmc_kmap_atomic(struct tmio_mmc_host *host,
145 unsigned long *flags)
147 struct scatterlist *sg = host->sg_ptr;
149 local_irq_save(*flags);
150 return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
153 static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host *host,
154 unsigned long *flags)
156 kunmap_atomic(sg_page(host->sg_ptr), KM_BIO_SRC_IRQ);
157 local_irq_restore(*flags);
160 #ifdef CONFIG_MMC_DEBUG
162 #define STATUS_TO_TEXT(a) \
164 if (status & TMIO_STAT_##a) \
168 void pr_debug_status(u32 status)
170 printk(KERN_DEBUG "status: %08x = ", status);
171 STATUS_TO_TEXT(CARD_REMOVE);
172 STATUS_TO_TEXT(CARD_INSERT);
173 STATUS_TO_TEXT(SIGSTATE);
174 STATUS_TO_TEXT(WRPROTECT);
175 STATUS_TO_TEXT(CARD_REMOVE_A);
176 STATUS_TO_TEXT(CARD_INSERT_A);
177 STATUS_TO_TEXT(SIGSTATE_A);
178 STATUS_TO_TEXT(CMD_IDX_ERR);
179 STATUS_TO_TEXT(STOPBIT_ERR);
180 STATUS_TO_TEXT(ILL_FUNC);
181 STATUS_TO_TEXT(CMD_BUSY);
182 STATUS_TO_TEXT(CMDRESPEND);
183 STATUS_TO_TEXT(DATAEND);
184 STATUS_TO_TEXT(CRCFAIL);
185 STATUS_TO_TEXT(DATATIMEOUT);
186 STATUS_TO_TEXT(CMDTIMEOUT);
187 STATUS_TO_TEXT(RXOVERFLOW);
188 STATUS_TO_TEXT(TXUNDERRUN);
189 STATUS_TO_TEXT(RXRDY);
190 STATUS_TO_TEXT(TXRQ);
191 STATUS_TO_TEXT(ILL_ACCESS);
196 #define pr_debug_status(s) do { } while (0)