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git01.mediatek.com / filogic / atf / 028cb12b14c412c07f1f6fe31a30e8a9145430db / . / include / drivers / mmc.h
blob: 50e08001dd0fb9c67530942e729c79e3848395b5 [file] [log] [blame]
Yann Gautier1e5e85a2018-07-03 18:32:12 +0200[diff] [blame]1/*
2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#ifndef __MMC_H__
8#define __MMC_H__
9
10#include <stdint.h>
11#include <utils_def.h>
12
13#define MMC_BLOCK_SIZE U(512)
14#define MMC_BLOCK_MASK (MMC_BLOCK_SIZE - U(1))
15#define MMC_BOOT_CLK_RATE (400 * 1000)
16
17#define MMC_CMD(_x) U(_x)
18
19#define MMC_ACMD(_x) U(_x)
20
21#define OCR_POWERUP BIT(31)
22#define OCR_HCS BIT(30)
23#define OCR_BYTE_MODE (U(0) << 29)
24#define OCR_SECTOR_MODE (U(2) << 29)
25#define OCR_ACCESS_MODE_MASK (U(3) << 29)
26#define OCR_3_5_3_6 BIT(23)
27#define OCR_3_4_3_5 BIT(22)
28#define OCR_3_3_3_4 BIT(21)
29#define OCR_3_2_3_3 BIT(20)
30#define OCR_3_1_3_2 BIT(19)
31#define OCR_3_0_3_1 BIT(18)
32#define OCR_2_9_3_0 BIT(17)
33#define OCR_2_8_2_9 BIT(16)
34#define OCR_2_7_2_8 BIT(15)
35#define OCR_VDD_MIN_2V7 GENMASK(23, 15)
36#define OCR_VDD_MIN_2V0 GENMASK(14, 8)
37#define OCR_VDD_MIN_1V7 BIT(7)
38
Jun Nie028cb122018-06-28 16:38:00 +0800[diff] [blame^]39#define MMC_RSP_48 BIT(0)
40#define MMC_RSP_136 BIT(1) /* 136 bit response */
41#define MMC_RSP_CRC BIT(2) /* expect valid crc */
42#define MMC_RSP_CMD_IDX BIT(3) /* response contains cmd idx */
43#define MMC_RSP_BUSY BIT(4) /* device may be busy */
44
45/* JEDEC 4.51 chapter 6.12 */
46#define MMC_RESPONSE_R1 (MMC_RSP_48 | MMC_RSP_CMD_IDX | MMC_RSP_CRC)
47#define MMC_RESPONSE_R1B (MMC_RESPONSE_R1 | MMC_RSP_BUSY)
48#define MMC_RESPONSE_R2 (MMC_RSP_136 | MMC_RSP_CRC)
49#define MMC_RESPONSE_R3 (MMC_RSP_48)
50#define MMC_RESPONSE_R4 (MMC_RSP_48)
51#define MMC_RESPONSE_R5 (MMC_RSP_48 | MMC_RSP_CRC)
52
Yann Gautier1e5e85a2018-07-03 18:32:12 +0200[diff] [blame]53#define MMC_RESPONSE_R(_x) U(_x)
54
55/* Value randomly chosen for eMMC RCA, it should be > 1 */
56#define MMC_FIX_RCA 6
57#define RCA_SHIFT_OFFSET 16
58
59#define CMD_EXTCSD_PARTITION_CONFIG 179
60#define CMD_EXTCSD_BUS_WIDTH 183
61#define CMD_EXTCSD_HS_TIMING 185
62#define CMD_EXTCSD_SEC_CNT 212
63
64#define PART_CFG_BOOT_PARTITION1_ENABLE (U(1) << 3)
65#define PART_CFG_PARTITION1_ACCESS (U(1) << 0)
66
67/* Values in EXT CSD register */
68#define MMC_BUS_WIDTH_1 U(0)
69#define MMC_BUS_WIDTH_4 U(1)
70#define MMC_BUS_WIDTH_8 U(2)
71#define MMC_BUS_WIDTH_DDR_4 U(5)
72#define MMC_BUS_WIDTH_DDR_8 U(6)
73#define MMC_BOOT_MODE_BACKWARD (U(0) << 3)
74#define MMC_BOOT_MODE_HS_TIMING (U(1) << 3)
75#define MMC_BOOT_MODE_DDR (U(2) << 3)
76
77#define EXTCSD_SET_CMD (U(0) << 24)
78#define EXTCSD_SET_BITS (U(1) << 24)
79#define EXTCSD_CLR_BITS (U(2) << 24)
80#define EXTCSD_WRITE_BYTES (U(3) << 24)
81#define EXTCSD_CMD(x) (((x) & 0xff) << 16)
82#define EXTCSD_VALUE(x) (((x) & 0xff) << 8)
83#define EXTCSD_CMD_SET_NORMAL U(1)
84
85#define CSD_TRAN_SPEED_UNIT_MASK GENMASK(2, 0)
86#define CSD_TRAN_SPEED_MULT_MASK GENMASK(6, 3)
87#define CSD_TRAN_SPEED_MULT_SHIFT 3
88
89#define STATUS_CURRENT_STATE(x) (((x) & 0xf) << 9)
90#define STATUS_READY_FOR_DATA BIT(8)
91#define STATUS_SWITCH_ERROR BIT(7)
92#define MMC_GET_STATE(x) (((x) >> 9) & 0xf)
93#define MMC_STATE_IDLE 0
94#define MMC_STATE_READY 1
95#define MMC_STATE_IDENT 2
96#define MMC_STATE_STBY 3
97#define MMC_STATE_TRAN 4
98#define MMC_STATE_DATA 5
99#define MMC_STATE_RCV 6
100#define MMC_STATE_PRG 7
101#define MMC_STATE_DIS 8
102#define MMC_STATE_BTST 9
103#define MMC_STATE_SLP 10
104
105#define MMC_FLAG_CMD23 (U(1) << 0)
106
107#define CMD8_CHECK_PATTERN U(0xAA)
108#define VHS_2_7_3_6_V BIT(8)
109
110#define SD_SCR_BUS_WIDTH_1 BIT(8)
111#define SD_SCR_BUS_WIDTH_4 BIT(10)
112
113struct mmc_cmd {
114 unsigned int cmd_idx;
115 unsigned int cmd_arg;
116 unsigned int resp_type;
117 unsigned int resp_data[4];
118};
119
120struct mmc_ops {
121 void (*init)(void);
122 int (*send_cmd)(struct mmc_cmd *cmd);
123 int (*set_ios)(unsigned int clk, unsigned int width);
124 int (*prepare)(int lba, uintptr_t buf, size_t size);
125 int (*read)(int lba, uintptr_t buf, size_t size);
126 int (*write)(int lba, const uintptr_t buf, size_t size);
127};
128
129struct mmc_csd_emmc {
130 unsigned int not_used: 1;
131 unsigned int crc: 7;
132 unsigned int ecc: 2;
133 unsigned int file_format: 2;
134 unsigned int tmp_write_protect: 1;
135 unsigned int perm_write_protect: 1;
136 unsigned int copy: 1;
137 unsigned int file_format_grp: 1;
138
139 unsigned int reserved_1: 5;
140 unsigned int write_bl_partial: 1;
141 unsigned int write_bl_len: 4;
142 unsigned int r2w_factor: 3;
143 unsigned int default_ecc: 2;
144 unsigned int wp_grp_enable: 1;
145
146 unsigned int wp_grp_size: 5;
147 unsigned int erase_grp_mult: 5;
148 unsigned int erase_grp_size: 5;
149 unsigned int c_size_mult: 3;
150 unsigned int vdd_w_curr_max: 3;
151 unsigned int vdd_w_curr_min: 3;
152 unsigned int vdd_r_curr_max: 3;
153 unsigned int vdd_r_curr_min: 3;
154 unsigned int c_size_low: 2;
155
156 unsigned int c_size_high: 10;
157 unsigned int reserved_2: 2;
158 unsigned int dsr_imp: 1;
159 unsigned int read_blk_misalign: 1;
160 unsigned int write_blk_misalign: 1;
161 unsigned int read_bl_partial: 1;
162 unsigned int read_bl_len: 4;
163 unsigned int ccc: 12;
164
165 unsigned int tran_speed: 8;
166 unsigned int nsac: 8;
167 unsigned int taac: 8;
168 unsigned int reserved_3: 2;
169 unsigned int spec_vers: 4;
170 unsigned int csd_structure: 2;
171};
172
173struct mmc_csd_sd_v2 {
174 unsigned int not_used: 1;
175 unsigned int crc: 7;
176 unsigned int reserved_1: 2;
177 unsigned int file_format: 2;
178 unsigned int tmp_write_protect: 1;
179 unsigned int perm_write_protect: 1;
180 unsigned int copy: 1;
181 unsigned int file_format_grp: 1;
182
183 unsigned int reserved_2: 5;
184 unsigned int write_bl_partial: 1;
185 unsigned int write_bl_len: 4;
186 unsigned int r2w_factor: 3;
187 unsigned int reserved_3: 2;
188 unsigned int wp_grp_enable: 1;
189
190 unsigned int wp_grp_size: 7;
191 unsigned int sector_size: 7;
192 unsigned int erase_block_en: 1;
193 unsigned int reserved_4: 1;
194 unsigned int c_size_low: 16;
195
196 unsigned int c_size_high: 6;
197 unsigned int reserved_5: 6;
198 unsigned int dsr_imp: 1;
199 unsigned int read_blk_misalign: 1;
200 unsigned int write_blk_misalign: 1;
201 unsigned int read_bl_partial: 1;
202 unsigned int read_bl_len: 4;
203 unsigned int ccc: 12;
204
205 unsigned int tran_speed: 8;
206 unsigned int nsac: 8;
207 unsigned int taac: 8;
208 unsigned int reserved_6: 6;
209 unsigned int csd_structure: 2;
210};
211
212enum mmc_device_type {
213 MMC_IS_EMMC,
214 MMC_IS_SD,
215 MMC_IS_SD_HC,
216};
217
218struct mmc_device_info {
219 unsigned long long device_size; /* Size of device in bytes */
220 unsigned int block_size; /* Block size in bytes */
221 unsigned int max_bus_freq; /* Max bus freq in Hz */
222 enum mmc_device_type mmc_dev_type; /* Type of MMC */
223};
224
Haojian Zhuangd87f0b72018-08-02 14:49:51 +0800[diff] [blame]225size_t mmc_read_blocks(int lba, uintptr_t buf, size_t size);
226size_t mmc_write_blocks(int lba, const uintptr_t buf, size_t size);
227size_t mmc_erase_blocks(int lba, size_t size);
228size_t mmc_rpmb_read_blocks(int lba, uintptr_t buf, size_t size);
229size_t mmc_rpmb_write_blocks(int lba, const uintptr_t buf, size_t size);
230size_t mmc_rpmb_erase_blocks(int lba, size_t size);
Yann Gautier1e5e85a2018-07-03 18:32:12 +0200[diff] [blame]231int mmc_init(const struct mmc_ops *ops_ptr, unsigned int clk,
232 unsigned int width, unsigned int flags,
233 struct mmc_device_info *device_info);
234
235#endif /* __MMC_H__ */