1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright (C) 2020 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
4  */
5 
6 #ifndef _MESON_MX_SDHC_H_
7 #define _MESON_MX_SDHC_H_
8 
9 #include <linux/bitfield.h>
10 
11 #define MESON_SDHC_ARGU						0x00
12 
13 #define MESON_SDHC_SEND						0x04
14 	#define MESON_SDHC_SEND_CMD_INDEX			GENMASK(5, 0)
15 	#define MESON_SDHC_SEND_CMD_HAS_RESP			BIT(6)
16 	#define MESON_SDHC_SEND_CMD_HAS_DATA			BIT(7)
17 	#define MESON_SDHC_SEND_RESP_LEN			BIT(8)
18 	#define MESON_SDHC_SEND_RESP_NO_CRC			BIT(9)
19 	#define MESON_SDHC_SEND_DATA_DIR			BIT(10)
20 	#define MESON_SDHC_SEND_DATA_STOP			BIT(11)
21 	#define MESON_SDHC_SEND_R1B				BIT(12)
22 	#define MESON_SDHC_SEND_TOTAL_PACK			GENMASK(31, 16)
23 
24 #define MESON_SDHC_CTRL						0x08
25 	#define MESON_SDHC_CTRL_DAT_TYPE			GENMASK(1, 0)
26 	#define MESON_SDHC_CTRL_DDR_MODE			BIT(2)
27 	#define MESON_SDHC_CTRL_TX_CRC_NOCHECK			BIT(3)
28 	#define MESON_SDHC_CTRL_PACK_LEN			GENMASK(12, 4)
29 	#define MESON_SDHC_CTRL_RX_TIMEOUT			GENMASK(19, 13)
30 	#define MESON_SDHC_CTRL_RX_PERIOD			GENMASK(23, 20)
31 	#define MESON_SDHC_CTRL_RX_ENDIAN			GENMASK(26, 24)
32 	#define MESON_SDHC_CTRL_SDIO_IRQ_MODE			BIT(27)
33 	#define MESON_SDHC_CTRL_DAT0_IRQ_SEL			BIT(28)
34 	#define MESON_SDHC_CTRL_TX_ENDIAN			GENMASK(31, 29)
35 
36 #define MESON_SDHC_STAT						0x0c
37 	#define MESON_SDHC_STAT_CMD_BUSY			BIT(0)
38 	#define MESON_SDHC_STAT_DAT3_0				GENMASK(4, 1)
39 	#define MESON_SDHC_STAT_CMD				BIT(5)
40 	#define MESON_SDHC_STAT_RXFIFO_CNT			GENMASK(12, 6)
41 	#define MESON_SDHC_STAT_TXFIFO_CNT			GENMASK(19, 13)
42 	#define MESON_SDHC_STAT_DAT7_4				GENMASK(23, 20)
43 
44 #define MESON_SDHC_CLKC						0x10
45 	#define MESON_SDHC_CLKC_CLK_DIV				GENMASK(11, 0)
46 	#define MESON_SDHC_CLKC_CLK_JIC				BIT(24)
47 	#define MESON_SDHC_CLKC_MEM_PWR_OFF			GENMASK(26, 25)
48 
49 #define MESON_SDHC_ADDR						0x14
50 
51 #define MESON_SDHC_PDMA						0x18
52 	#define MESON_SDHC_PDMA_DMA_MODE			BIT(0)
53 	#define MESON_SDHC_PDMA_PIO_RDRESP			GENMASK(3, 1)
54 	#define MESON_SDHC_PDMA_DMA_URGENT			BIT(4)
55 	#define MESON_SDHC_PDMA_WR_BURST			GENMASK(9, 5)
56 	#define MESON_SDHC_PDMA_RD_BURST			GENMASK(14, 10)
57 	#define MESON_SDHC_PDMA_RXFIFO_TH			GENMASK(21, 15)
58 	#define MESON_SDHC_PDMA_TXFIFO_TH			GENMASK(28, 22)
59 	#define MESON_SDHC_PDMA_RXFIFO_MANUAL_FLUSH		GENMASK(30, 29)
60 	#define MESON_SDHC_PDMA_TXFIFO_FILL			BIT(31)
61 
62 #define MESON_SDHC_MISC						0x1c
63 	#define MESON_SDHC_MISC_WCRC_ERR_PATT			GENMASK(6, 4)
64 	#define MESON_SDHC_MISC_WCRC_OK_PATT			GENMASK(9, 7)
65 	#define MESON_SDHC_MISC_BURST_NUM			GENMASK(21, 16)
66 	#define MESON_SDHC_MISC_THREAD_ID			GENMASK(27, 22)
67 	#define MESON_SDHC_MISC_MANUAL_STOP			BIT(28)
68 	#define MESON_SDHC_MISC_TXSTART_THRES			GENMASK(31, 29)
69 
70 #define MESON_SDHC_DATA						0x20
71 
72 #define MESON_SDHC_ICTL						0x24
73 	#define MESON_SDHC_ICTL_RESP_OK				BIT(0)
74 	#define MESON_SDHC_ICTL_RESP_TIMEOUT			BIT(1)
75 	#define MESON_SDHC_ICTL_RESP_ERR_CRC			BIT(2)
76 	#define MESON_SDHC_ICTL_RESP_OK_NOCLEAR			BIT(3)
77 	#define MESON_SDHC_ICTL_DATA_1PACK_OK			BIT(4)
78 	#define MESON_SDHC_ICTL_DATA_TIMEOUT			BIT(5)
79 	#define MESON_SDHC_ICTL_DATA_ERR_CRC			BIT(6)
80 	#define MESON_SDHC_ICTL_DATA_XFER_OK			BIT(7)
81 	#define MESON_SDHC_ICTL_RX_HIGHER			BIT(8)
82 	#define MESON_SDHC_ICTL_RX_LOWER			BIT(9)
83 	#define MESON_SDHC_ICTL_DAT1_IRQ			BIT(10)
84 	#define MESON_SDHC_ICTL_DMA_DONE			BIT(11)
85 	#define MESON_SDHC_ICTL_RXFIFO_FULL			BIT(12)
86 	#define MESON_SDHC_ICTL_TXFIFO_EMPTY			BIT(13)
87 	#define MESON_SDHC_ICTL_ADDI_DAT1_IRQ			BIT(14)
88 	#define MESON_SDHC_ICTL_ALL_IRQS			GENMASK(14, 0)
89 	#define MESON_SDHC_ICTL_DAT1_IRQ_DELAY			GENMASK(17, 16)
90 
91 #define MESON_SDHC_ISTA						0x28
92 	#define MESON_SDHC_ISTA_RESP_OK				BIT(0)
93 	#define MESON_SDHC_ISTA_RESP_TIMEOUT			BIT(1)
94 	#define MESON_SDHC_ISTA_RESP_ERR_CRC			BIT(2)
95 	#define MESON_SDHC_ISTA_RESP_OK_NOCLEAR			BIT(3)
96 	#define MESON_SDHC_ISTA_DATA_1PACK_OK			BIT(4)
97 	#define MESON_SDHC_ISTA_DATA_TIMEOUT			BIT(5)
98 	#define MESON_SDHC_ISTA_DATA_ERR_CRC			BIT(6)
99 	#define MESON_SDHC_ISTA_DATA_XFER_OK			BIT(7)
100 	#define MESON_SDHC_ISTA_RX_HIGHER			BIT(8)
101 	#define MESON_SDHC_ISTA_RX_LOWER			BIT(9)
102 	#define MESON_SDHC_ISTA_DAT1_IRQ			BIT(10)
103 	#define MESON_SDHC_ISTA_DMA_DONE			BIT(11)
104 	#define MESON_SDHC_ISTA_RXFIFO_FULL			BIT(12)
105 	#define MESON_SDHC_ISTA_TXFIFO_EMPTY			BIT(13)
106 	#define MESON_SDHC_ISTA_ADDI_DAT1_IRQ			BIT(14)
107 	#define MESON_SDHC_ISTA_ALL_IRQS			GENMASK(14, 0)
108 
109 #define MESON_SDHC_SRST						0x2c
110 	#define MESON_SDHC_SRST_MAIN_CTRL			BIT(0)
111 	#define MESON_SDHC_SRST_RXFIFO				BIT(1)
112 	#define MESON_SDHC_SRST_TXFIFO				BIT(2)
113 	#define MESON_SDHC_SRST_DPHY_RX				BIT(3)
114 	#define MESON_SDHC_SRST_DPHY_TX				BIT(4)
115 	#define MESON_SDHC_SRST_DMA_IF				BIT(5)
116 
117 #define MESON_SDHC_ESTA						0x30
118 	#define MESON_SDHC_ESTA_11_13				GENMASK(13, 11)
119 
120 #define MESON_SDHC_ENHC						0x34
121 	#define MESON_SDHC_ENHC_MESON8M2_WRRSP_MODE		BIT(0)
122 	#define MESON_SDHC_ENHC_MESON8M2_CHK_WRRSP		BIT(1)
123 	#define MESON_SDHC_ENHC_MESON8M2_CHK_DMA		BIT(2)
124 	#define MESON_SDHC_ENHC_MESON8M2_DEBUG			GENMASK(5, 3)
125 	#define MESON_SDHC_ENHC_MESON6_RX_TIMEOUT		GENMASK(7, 0)
126 	#define MESON_SDHC_ENHC_MESON6_DMA_RD_RESP		BIT(16)
127 	#define MESON_SDHC_ENHC_MESON6_DMA_WR_RESP		BIT(17)
128 	#define MESON_SDHC_ENHC_SDIO_IRQ_PERIOD			GENMASK(15, 8)
129 	#define MESON_SDHC_ENHC_RXFIFO_TH			GENMASK(24, 18)
130 	#define MESON_SDHC_ENHC_TXFIFO_TH			GENMASK(31, 25)
131 
132 #define MESON_SDHC_CLK2						0x38
133 	#define MESON_SDHC_CLK2_RX_CLK_PHASE			GENMASK(11, 0)
134 	#define MESON_SDHC_CLK2_SD_CLK_PHASE			GENMASK(23, 12)
135 
136 struct clk_bulk_data;
137 
138 int meson_mx_sdhc_register_clkc(struct device *dev, void __iomem *base,
139 				struct clk_bulk_data *clk_bulk_data);
140 
141 #endif /* _MESON_MX_SDHC_H_ */
142