1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  cb710/cb710-mmc.h
4  *
5  *  Copyright by Michał Mirosław, 2008-2009
6  */
7 #ifndef LINUX_CB710_MMC_H
8 #define LINUX_CB710_MMC_H
9 
10 #include <linux/cb710.h>
11 
12 /* per-MMC-reader structure */
13 struct cb710_mmc_reader {
14 	struct tasklet_struct finish_req_tasklet;
15 	struct mmc_request *mrq;
16 	spinlock_t irq_lock;
17 	unsigned char last_power_mode;
18 };
19 
20 /* some device struct walking */
21 
cb710_slot_to_mmc(struct cb710_slot * slot)22 static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
23 {
24 	return platform_get_drvdata(&slot->pdev);
25 }
26 
cb710_mmc_to_slot(struct mmc_host * mmc)27 static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
28 {
29 	struct platform_device *pdev = to_platform_device(mmc_dev(mmc));
30 	return cb710_pdev_to_slot(pdev);
31 }
32 
33 /* registers (this might be all wrong ;) */
34 
35 #define CB710_MMC_DATA_PORT		0x00
36 
37 #define CB710_MMC_CONFIG_PORT		0x04
38 #define CB710_MMC_CONFIG0_PORT		0x04
39 #define CB710_MMC_CONFIG1_PORT		0x05
40 #define   CB710_MMC_C1_4BIT_DATA_BUS		0x40
41 #define CB710_MMC_CONFIG2_PORT		0x06
42 #define   CB710_MMC_C2_READ_PIO_SIZE_MASK	0x0F	/* N-1 */
43 #define CB710_MMC_CONFIG3_PORT		0x07
44 
45 #define CB710_MMC_CONFIGB_PORT		0x08
46 
47 #define CB710_MMC_IRQ_ENABLE_PORT	0x0C
48 #define   CB710_MMC_IE_TEST_MASK		0x00BF
49 #define   CB710_MMC_IE_CARD_INSERTION_STATUS	0x1000
50 #define   CB710_MMC_IE_IRQ_ENABLE		0x8000
51 #define   CB710_MMC_IE_CISTATUS_MASK		\
52 		(CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
53 
54 #define CB710_MMC_STATUS_PORT		0x10
55 #define   CB710_MMC_STATUS_ERROR_EVENTS		0x60FF
56 #define CB710_MMC_STATUS0_PORT		0x10
57 #define   CB710_MMC_S0_FIFO_UNDERFLOW		0x40
58 #define CB710_MMC_STATUS1_PORT		0x11
59 #define   CB710_MMC_S1_COMMAND_SENT		0x01
60 #define   CB710_MMC_S1_DATA_TRANSFER_DONE	0x02
61 #define   CB710_MMC_S1_PIO_TRANSFER_DONE	0x04
62 #define   CB710_MMC_S1_CARD_CHANGED		0x10
63 #define   CB710_MMC_S1_RESET			0x20
64 #define CB710_MMC_STATUS2_PORT		0x12
65 #define   CB710_MMC_S2_FIFO_READY		0x01
66 #define   CB710_MMC_S2_FIFO_EMPTY		0x02
67 #define   CB710_MMC_S2_BUSY_10			0x10
68 #define   CB710_MMC_S2_BUSY_20			0x20
69 #define CB710_MMC_STATUS3_PORT		0x13
70 #define   CB710_MMC_S3_CARD_DETECTED		0x02
71 #define   CB710_MMC_S3_WRITE_PROTECTED		0x04
72 
73 #define CB710_MMC_CMD_TYPE_PORT		0x14
74 #define   CB710_MMC_RSP_TYPE_MASK		0x0007
75 #define     CB710_MMC_RSP_R1			(0)
76 #define     CB710_MMC_RSP_136			(5)
77 #define     CB710_MMC_RSP_NO_CRC		(2)
78 #define   CB710_MMC_RSP_PRESENT_MASK		0x0018
79 #define     CB710_MMC_RSP_NONE			(0 << 3)
80 #define     CB710_MMC_RSP_PRESENT		(1 << 3)
81 #define     CB710_MMC_RSP_PRESENT_X		(2 << 3)
82 #define   CB710_MMC_CMD_TYPE_MASK		0x0060
83 #define     CB710_MMC_CMD_BC			(0 << 5)
84 #define     CB710_MMC_CMD_BCR			(1 << 5)
85 #define     CB710_MMC_CMD_AC			(2 << 5)
86 #define     CB710_MMC_CMD_ADTC			(3 << 5)
87 #define   CB710_MMC_DATA_READ			0x0080
88 #define   CB710_MMC_CMD_CODE_MASK		0x3F00
89 #define   CB710_MMC_CMD_CODE_SHIFT		8
90 #define   CB710_MMC_IS_APP_CMD			0x4000
91 #define   CB710_MMC_RSP_BUSY			0x8000
92 
93 #define CB710_MMC_CMD_PARAM_PORT	0x18
94 #define CB710_MMC_TRANSFER_SIZE_PORT	0x1C
95 #define CB710_MMC_RESPONSE0_PORT	0x20
96 #define CB710_MMC_RESPONSE1_PORT	0x24
97 #define CB710_MMC_RESPONSE2_PORT	0x28
98 #define CB710_MMC_RESPONSE3_PORT	0x2C
99 
100 #endif /* LINUX_CB710_MMC_H */
101