xref: /openbmc/linux/drivers/mmc/host/cb710-mmc.h (revision eb3fcf00)
1 /*
2  *  cb710/cb710-mmc.h
3  *
4  *  Copyright by Michał Mirosław, 2008-2009
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 #ifndef LINUX_CB710_MMC_H
11 #define LINUX_CB710_MMC_H
12 
13 #include <linux/cb710.h>
14 
15 /* per-MMC-reader structure */
16 struct cb710_mmc_reader {
17 	struct tasklet_struct finish_req_tasklet;
18 	struct mmc_request *mrq;
19 	spinlock_t irq_lock;
20 	unsigned char last_power_mode;
21 };
22 
23 /* some device struct walking */
24 
25 static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
26 {
27 	return platform_get_drvdata(&slot->pdev);
28 }
29 
30 static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
31 {
32 	struct platform_device *pdev = container_of(mmc_dev(mmc),
33 		struct platform_device, dev);
34 	return cb710_pdev_to_slot(pdev);
35 }
36 
37 /* registers (this might be all wrong ;) */
38 
39 #define CB710_MMC_DATA_PORT		0x00
40 
41 #define CB710_MMC_CONFIG_PORT		0x04
42 #define CB710_MMC_CONFIG0_PORT		0x04
43 #define CB710_MMC_CONFIG1_PORT		0x05
44 #define   CB710_MMC_C1_4BIT_DATA_BUS		0x40
45 #define CB710_MMC_CONFIG2_PORT		0x06
46 #define   CB710_MMC_C2_READ_PIO_SIZE_MASK	0x0F	/* N-1 */
47 #define CB710_MMC_CONFIG3_PORT		0x07
48 
49 #define CB710_MMC_CONFIGB_PORT		0x08
50 
51 #define CB710_MMC_IRQ_ENABLE_PORT	0x0C
52 #define   CB710_MMC_IE_TEST_MASK		0x00BF
53 #define   CB710_MMC_IE_CARD_INSERTION_STATUS	0x1000
54 #define   CB710_MMC_IE_IRQ_ENABLE		0x8000
55 #define   CB710_MMC_IE_CISTATUS_MASK		\
56 		(CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
57 
58 #define CB710_MMC_STATUS_PORT		0x10
59 #define   CB710_MMC_STATUS_ERROR_EVENTS		0x60FF
60 #define CB710_MMC_STATUS0_PORT		0x10
61 #define   CB710_MMC_S0_FIFO_UNDERFLOW		0x40
62 #define CB710_MMC_STATUS1_PORT		0x11
63 #define   CB710_MMC_S1_COMMAND_SENT		0x01
64 #define   CB710_MMC_S1_DATA_TRANSFER_DONE	0x02
65 #define   CB710_MMC_S1_PIO_TRANSFER_DONE	0x04
66 #define   CB710_MMC_S1_CARD_CHANGED		0x10
67 #define   CB710_MMC_S1_RESET			0x20
68 #define CB710_MMC_STATUS2_PORT		0x12
69 #define   CB710_MMC_S2_FIFO_READY		0x01
70 #define   CB710_MMC_S2_FIFO_EMPTY		0x02
71 #define   CB710_MMC_S2_BUSY_10			0x10
72 #define   CB710_MMC_S2_BUSY_20			0x20
73 #define CB710_MMC_STATUS3_PORT		0x13
74 #define   CB710_MMC_S3_CARD_DETECTED		0x02
75 #define   CB710_MMC_S3_WRITE_PROTECTED		0x04
76 
77 #define CB710_MMC_CMD_TYPE_PORT		0x14
78 #define   CB710_MMC_RSP_TYPE_MASK		0x0007
79 #define     CB710_MMC_RSP_R1			(0)
80 #define     CB710_MMC_RSP_136			(5)
81 #define     CB710_MMC_RSP_NO_CRC		(2)
82 #define   CB710_MMC_RSP_PRESENT_MASK		0x0018
83 #define     CB710_MMC_RSP_NONE			(0 << 3)
84 #define     CB710_MMC_RSP_PRESENT		(1 << 3)
85 #define     CB710_MMC_RSP_PRESENT_X		(2 << 3)
86 #define   CB710_MMC_CMD_TYPE_MASK		0x0060
87 #define     CB710_MMC_CMD_BC			(0 << 5)
88 #define     CB710_MMC_CMD_BCR			(1 << 5)
89 #define     CB710_MMC_CMD_AC			(2 << 5)
90 #define     CB710_MMC_CMD_ADTC			(3 << 5)
91 #define   CB710_MMC_DATA_READ			0x0080
92 #define   CB710_MMC_CMD_CODE_MASK		0x3F00
93 #define   CB710_MMC_CMD_CODE_SHIFT		8
94 #define   CB710_MMC_IS_APP_CMD			0x4000
95 #define   CB710_MMC_RSP_BUSY			0x8000
96 
97 #define CB710_MMC_CMD_PARAM_PORT	0x18
98 #define CB710_MMC_TRANSFER_SIZE_PORT	0x1C
99 #define CB710_MMC_RESPONSE0_PORT	0x20
100 #define CB710_MMC_RESPONSE1_PORT	0x24
101 #define CB710_MMC_RESPONSE2_PORT	0x28
102 #define CB710_MMC_RESPONSE3_PORT	0x2C
103 
104 #endif /* LINUX_CB710_MMC_H */
105