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Tom Rini83d290c2018-05-06 17:58:06 -04001/* SPDX-License-Identifier: GPL-2.0+ */
Marek Vasutcb0b6b02018-04-13 23:51:33 +02002/*
3 * Copyright (C) 2016 Socionext Inc.
4 * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
Marek Vasutcb0b6b02018-04-13 23:51:33 +02005 */
6
7#ifndef __TMIO_COMMON_H__
8#define __TMIO_COMMON_H__
9
10#define TMIO_SD_CMD 0x000 /* command */
11#define TMIO_SD_CMD_NOSTOP BIT(14) /* No automatic CMD12 issue */
12#define TMIO_SD_CMD_MULTI BIT(13) /* multiple block transfer */
13#define TMIO_SD_CMD_RD BIT(12) /* 1: read, 0: write */
14#define TMIO_SD_CMD_DATA BIT(11) /* data transfer */
15#define TMIO_SD_CMD_APP BIT(6) /* ACMD preceded by CMD55 */
16#define TMIO_SD_CMD_NORMAL (0 << 8)/* auto-detect of resp-type */
17#define TMIO_SD_CMD_RSP_NONE (3 << 8)/* response: none */
18#define TMIO_SD_CMD_RSP_R1 (4 << 8)/* response: R1, R5, R6, R7 */
19#define TMIO_SD_CMD_RSP_R1B (5 << 8)/* response: R1b, R5b */
20#define TMIO_SD_CMD_RSP_R2 (6 << 8)/* response: R2 */
21#define TMIO_SD_CMD_RSP_R3 (7 << 8)/* response: R3, R4 */
22#define TMIO_SD_ARG 0x008 /* command argument */
23#define TMIO_SD_STOP 0x010 /* stop action control */
24#define TMIO_SD_STOP_SEC BIT(8) /* use sector count */
25#define TMIO_SD_STOP_STP BIT(0) /* issue CMD12 */
26#define TMIO_SD_SECCNT 0x014 /* sector counter */
27#define TMIO_SD_RSP10 0x018 /* response[39:8] */
28#define TMIO_SD_RSP32 0x020 /* response[71:40] */
29#define TMIO_SD_RSP54 0x028 /* response[103:72] */
30#define TMIO_SD_RSP76 0x030 /* response[127:104] */
31#define TMIO_SD_INFO1 0x038 /* IRQ status 1 */
32#define TMIO_SD_INFO1_CD BIT(5) /* state of card detect */
33#define TMIO_SD_INFO1_INSERT BIT(4) /* card inserted */
34#define TMIO_SD_INFO1_REMOVE BIT(3) /* card removed */
35#define TMIO_SD_INFO1_CMP BIT(2) /* data complete */
36#define TMIO_SD_INFO1_RSP BIT(0) /* response complete */
37#define TMIO_SD_INFO2 0x03c /* IRQ status 2 */
38#define TMIO_SD_INFO2_ERR_ILA BIT(15) /* illegal access err */
39#define TMIO_SD_INFO2_CBSY BIT(14) /* command busy */
40#define TMIO_SD_INFO2_SCLKDIVEN BIT(13) /* command setting reg ena */
41#define TMIO_SD_INFO2_BWE BIT(9) /* write buffer ready */
42#define TMIO_SD_INFO2_BRE BIT(8) /* read buffer ready */
43#define TMIO_SD_INFO2_DAT0 BIT(7) /* SDDAT0 */
44#define TMIO_SD_INFO2_ERR_RTO BIT(6) /* response time out */
45#define TMIO_SD_INFO2_ERR_ILR BIT(5) /* illegal read err */
46#define TMIO_SD_INFO2_ERR_ILW BIT(4) /* illegal write err */
47#define TMIO_SD_INFO2_ERR_TO BIT(3) /* time out error */
48#define TMIO_SD_INFO2_ERR_END BIT(2) /* END bit error */
49#define TMIO_SD_INFO2_ERR_CRC BIT(1) /* CRC error */
50#define TMIO_SD_INFO2_ERR_IDX BIT(0) /* cmd index error */
51#define TMIO_SD_INFO1_MASK 0x040
52#define TMIO_SD_INFO2_MASK 0x044
53#define TMIO_SD_CLKCTL 0x048 /* clock divisor */
54#define TMIO_SD_CLKCTL_DIV_MASK 0x104ff
55#define TMIO_SD_CLKCTL_DIV1024 BIT(16) /* SDCLK = CLK / 1024 */
56#define TMIO_SD_CLKCTL_DIV512 BIT(7) /* SDCLK = CLK / 512 */
57#define TMIO_SD_CLKCTL_DIV256 BIT(6) /* SDCLK = CLK / 256 */
58#define TMIO_SD_CLKCTL_DIV128 BIT(5) /* SDCLK = CLK / 128 */
59#define TMIO_SD_CLKCTL_DIV64 BIT(4) /* SDCLK = CLK / 64 */
60#define TMIO_SD_CLKCTL_DIV32 BIT(3) /* SDCLK = CLK / 32 */
61#define TMIO_SD_CLKCTL_DIV16 BIT(2) /* SDCLK = CLK / 16 */
62#define TMIO_SD_CLKCTL_DIV8 BIT(1) /* SDCLK = CLK / 8 */
63#define TMIO_SD_CLKCTL_DIV4 BIT(0) /* SDCLK = CLK / 4 */
64#define TMIO_SD_CLKCTL_DIV2 0 /* SDCLK = CLK / 2 */
65#define TMIO_SD_CLKCTL_DIV1 BIT(10) /* SDCLK = CLK */
66#define TMIO_SD_CLKCTL_RCAR_DIV1 0xff /* SDCLK = CLK (RCar ver.) */
67#define TMIO_SD_CLKCTL_OFFEN BIT(9) /* stop SDCLK when unused */
68#define TMIO_SD_CLKCTL_SCLKEN BIT(8) /* SDCLK output enable */
69#define TMIO_SD_SIZE 0x04c /* block size */
70#define TMIO_SD_OPTION 0x050
71#define TMIO_SD_OPTION_WIDTH_MASK (5 << 13)
72#define TMIO_SD_OPTION_WIDTH_1 (4 << 13)
73#define TMIO_SD_OPTION_WIDTH_4 (0 << 13)
74#define TMIO_SD_OPTION_WIDTH_8 (1 << 13)
75#define TMIO_SD_BUF 0x060 /* read/write buffer */
76#define TMIO_SD_EXTMODE 0x1b0
77#define TMIO_SD_EXTMODE_DMA_EN BIT(1) /* transfer 1: DMA, 0: pio */
78#define TMIO_SD_SOFT_RST 0x1c0
79#define TMIO_SD_SOFT_RST_RSTX BIT(0) /* reset deassert */
80#define TMIO_SD_VERSION 0x1c4 /* version register */
81#define TMIO_SD_VERSION_IP 0xff /* IP version */
82#define TMIO_SD_HOST_MODE 0x1c8
83#define TMIO_SD_IF_MODE 0x1cc
84#define TMIO_SD_IF_MODE_DDR BIT(0) /* DDR mode */
85#define TMIO_SD_VOLT 0x1e4 /* voltage switch */
86#define TMIO_SD_VOLT_MASK (3 << 0)
87#define TMIO_SD_VOLT_OFF (0 << 0)
88#define TMIO_SD_VOLT_330 (1 << 0)/* 3.3V signal */
89#define TMIO_SD_VOLT_180 (2 << 0)/* 1.8V signal */
90#define TMIO_SD_DMA_MODE 0x410
91#define TMIO_SD_DMA_MODE_DIR_RD BIT(16) /* 1: from device, 0: to dev */
92#define TMIO_SD_DMA_MODE_ADDR_INC BIT(0) /* 1: address inc, 0: fixed */
93#define TMIO_SD_DMA_CTL 0x414
94#define TMIO_SD_DMA_CTL_START BIT(0) /* start DMA (auto cleared) */
95#define TMIO_SD_DMA_RST 0x418
96#define TMIO_SD_DMA_RST_RD BIT(9)
97#define TMIO_SD_DMA_RST_WR BIT(8)
98#define TMIO_SD_DMA_INFO1 0x420
99#define TMIO_SD_DMA_INFO1_END_RD2 BIT(20) /* DMA from device is complete (uniphier) */
100#define TMIO_SD_DMA_INFO1_END_RD BIT(17) /* DMA from device is complete (renesas) */
101#define TMIO_SD_DMA_INFO1_END_WR BIT(16) /* DMA to device is complete */
102#define TMIO_SD_DMA_INFO1_MASK 0x424
103#define TMIO_SD_DMA_INFO2 0x428
104#define TMIO_SD_DMA_INFO2_ERR_RD BIT(17)
105#define TMIO_SD_DMA_INFO2_ERR_WR BIT(16)
106#define TMIO_SD_DMA_INFO2_MASK 0x42c
107#define TMIO_SD_DMA_ADDR_L 0x440
108#define TMIO_SD_DMA_ADDR_H 0x444
109
110/* alignment required by the DMA engine of this controller */
111#define TMIO_SD_DMA_MINALIGN 0x10
112
113struct tmio_sd_plat {
114 struct mmc_config cfg;
115 struct mmc mmc;
116};
117
118struct tmio_sd_priv {
119 void __iomem *regbase;
120 unsigned long mclk;
121 unsigned int version;
122 u32 caps;
123#define TMIO_SD_CAP_NONREMOVABLE BIT(0) /* Nonremovable e.g. eMMC */
124#define TMIO_SD_CAP_DMA_INTERNAL BIT(1) /* have internal DMA engine */
125#define TMIO_SD_CAP_DIV1024 BIT(2) /* divisor 1024 is available */
126#define TMIO_SD_CAP_64BIT BIT(3) /* Controller is 64bit */
127#define TMIO_SD_CAP_16BIT BIT(4) /* Controller is 16bit */
128#define TMIO_SD_CAP_RCAR_GEN2 BIT(5) /* Renesas RCar version of IP */
129#define TMIO_SD_CAP_RCAR_GEN3 BIT(6) /* Renesas RCar version of IP */
130#define TMIO_SD_CAP_RCAR_UHS BIT(7) /* Renesas RCar UHS/SDR modes */
131#define TMIO_SD_CAP_RCAR \
132 (TMIO_SD_CAP_RCAR_GEN2 | TMIO_SD_CAP_RCAR_GEN3)
133#ifdef CONFIG_DM_REGULATOR
134 struct udevice *vqmmc_dev;
135#endif
136};
137
138int tmio_sd_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
139 struct mmc_data *data);
140int tmio_sd_set_ios(struct udevice *dev);
141int tmio_sd_get_cd(struct udevice *dev);
142
143int tmio_sd_bind(struct udevice *dev);
144int tmio_sd_probe(struct udevice *dev, u32 quirks);
145
146u32 tmio_sd_readl(struct tmio_sd_priv *priv, unsigned int reg);
147void tmio_sd_writel(struct tmio_sd_priv *priv,
148 u32 val, unsigned int reg);
149
150#endif /* __TMIO_COMMON_H__ */