2 * ARM PrimeCell MultiMedia Card Interface - PL180
4 * Copyright (C) ST-Ericsson SA 2010
6 * Author: Ulf Hansson <ulf.hansson@stericsson.com>
7 * Author: Martin Lundholm <martin.xa.lundholm@stericsson.com>
8 * Ported to drivers/mmc/ by: Matt Waddel <matt.waddel@linaro.org>
10 * SPDX-License-Identifier: GPL-2.0+
13 #ifndef __ARM_PL180_MMCI_H__
14 #define __ARM_PL180_MMCI_H__
16 #define COMMAND_REG_DELAY 300
17 #define DATA_REG_DELAY 1000
18 #define CLK_CHANGE_DELAY 2000
20 #define INIT_PWR 0xBF /* Power on, full power, not open drain */
21 #define ARM_MCLK (100*1000*1000)
23 /* SDI Power Control register bits */
24 #define SDI_PWR_PWRCTRL_MASK 0x00000003
25 #define SDI_PWR_PWRCTRL_ON 0x00000003
26 #define SDI_PWR_PWRCTRL_OFF 0x00000000
27 #define SDI_PWR_DAT2DIREN 0x00000004
28 #define SDI_PWR_CMDDIREN 0x00000008
29 #define SDI_PWR_DAT0DIREN 0x00000010
30 #define SDI_PWR_DAT31DIREN 0x00000020
31 #define SDI_PWR_OPD 0x00000040
32 #define SDI_PWR_FBCLKEN 0x00000080
33 #define SDI_PWR_DAT74DIREN 0x00000100
34 #define SDI_PWR_RSTEN 0x00000200
36 #define VOLTAGE_WINDOW_MMC 0x00FF8080
37 #define VOLTAGE_WINDOW_SD 0x80010000
39 /* SDI clock control register bits */
40 #define SDI_CLKCR_CLKDIV_MASK 0x000000FF
41 #define SDI_CLKCR_CLKEN 0x00000100
42 #define SDI_CLKCR_PWRSAV 0x00000200
43 #define SDI_CLKCR_BYPASS 0x00000400
44 #define SDI_CLKCR_WIDBUS_MASK 0x00001800
45 #define SDI_CLKCR_WIDBUS_1 0x00000000
46 #define SDI_CLKCR_WIDBUS_4 0x00000800
48 #define SDI_CLKCR_WIDBUS_8 0x00001000
49 #define SDI_CLKCR_NEDGE 0x00002000
50 #define SDI_CLKCR_HWFC_EN 0x00004000
52 #define SDI_CLKCR_CLKDIV_INIT_V1 0x000000C6 /* MCLK/(2*(0xC6+1)) => 505KHz */
53 #define SDI_CLKCR_CLKDIV_INIT_V2 0x000000FD
55 /* SDI command register bits */
56 #define SDI_CMD_CMDINDEX_MASK 0x000000FF
57 #define SDI_CMD_WAITRESP 0x00000040
58 #define SDI_CMD_LONGRESP 0x00000080
59 #define SDI_CMD_WAITINT 0x00000100
60 #define SDI_CMD_WAITPEND 0x00000200
61 #define SDI_CMD_CPSMEN 0x00000400
62 #define SDI_CMD_SDIOSUSPEND 0x00000800
63 #define SDI_CMD_ENDCMDCOMPL 0x00001000
64 #define SDI_CMD_NIEN 0x00002000
65 #define SDI_CMD_CE_ATACMD 0x00004000
66 #define SDI_CMD_CBOOTMODEEN 0x00008000
68 #define SDI_DTIMER_DEFAULT 0xFFFF0000
70 /* SDI Status register bits */
71 #define SDI_STA_CCRCFAIL 0x00000001
72 #define SDI_STA_DCRCFAIL 0x00000002
73 #define SDI_STA_CTIMEOUT 0x00000004
74 #define SDI_STA_DTIMEOUT 0x00000008
75 #define SDI_STA_TXUNDERR 0x00000010
76 #define SDI_STA_RXOVERR 0x00000020
77 #define SDI_STA_CMDREND 0x00000040
78 #define SDI_STA_CMDSENT 0x00000080
79 #define SDI_STA_DATAEND 0x00000100
80 #define SDI_STA_STBITERR 0x00000200
81 #define SDI_STA_DBCKEND 0x00000400
82 #define SDI_STA_CMDACT 0x00000800
83 #define SDI_STA_TXACT 0x00001000
84 #define SDI_STA_RXACT 0x00002000
85 #define SDI_STA_TXFIFOBW 0x00004000
86 #define SDI_STA_RXFIFOBR 0x00008000
87 #define SDI_STA_TXFIFOF 0x00010000
88 #define SDI_STA_RXFIFOF 0x00020000
89 #define SDI_STA_TXFIFOE 0x00040000
90 #define SDI_STA_RXFIFOE 0x00080000
91 #define SDI_STA_TXDAVL 0x00100000
92 #define SDI_STA_RXDAVL 0x00200000
93 #define SDI_STA_SDIOIT 0x00400000
94 #define SDI_STA_CEATAEND 0x00800000
95 #define SDI_STA_CARDBUSY 0x01000000
96 #define SDI_STA_BOOTMODE 0x02000000
97 #define SDI_STA_BOOTACKERR 0x04000000
98 #define SDI_STA_BOOTACKTIMEOUT 0x08000000
99 #define SDI_STA_RSTNEND 0x10000000
101 /* SDI Interrupt Clear register bits */
102 #define SDI_ICR_MASK 0x1DC007FF
103 #define SDI_ICR_CCRCFAILC 0x00000001
104 #define SDI_ICR_DCRCFAILC 0x00000002
105 #define SDI_ICR_CTIMEOUTC 0x00000004
106 #define SDI_ICR_DTIMEOUTC 0x00000008
107 #define SDI_ICR_TXUNDERRC 0x00000010
108 #define SDI_ICR_RXOVERRC 0x00000020
109 #define SDI_ICR_CMDRENDC 0x00000040
110 #define SDI_ICR_CMDSENTC 0x00000080
111 #define SDI_ICR_DATAENDC 0x00000100
112 #define SDI_ICR_STBITERRC 0x00000200
113 #define SDI_ICR_DBCKENDC 0x00000400
114 #define SDI_ICR_SDIOITC 0x00400000
115 #define SDI_ICR_CEATAENDC 0x00800000
116 #define SDI_ICR_BUSYENDC 0x01000000
117 #define SDI_ICR_BOOTACKERRC 0x04000000
118 #define SDI_ICR_BOOTACKTIMEOUTC 0x08000000
119 #define SDI_ICR_RSTNENDC 0x10000000
121 #define SDI_MASK0_MASK 0x1FFFFFFF
123 /* SDI Data control register bits */
124 #define SDI_DCTRL_DTEN 0x00000001
125 #define SDI_DCTRL_DTDIR_IN 0x00000002
126 #define SDI_DCTRL_DTMODE_STREAM 0x00000004
127 #define SDI_DCTRL_DMAEN 0x00000008
128 #define SDI_DCTRL_DBLKSIZE_MASK 0x000000F0
129 #define SDI_DCTRL_RWSTART 0x00000100
130 #define SDI_DCTRL_RWSTOP 0x00000200
131 #define SDI_DCTRL_RWMOD 0x00000200
132 #define SDI_DCTRL_SDIOEN 0x00000800
133 #define SDI_DCTRL_DMAREQCTL 0x00001000
134 #define SDI_DCTRL_DBOOTMODEEN 0x00002000
135 #define SDI_DCTRL_BUSYMODE 0x00004000
136 #define SDI_DCTRL_DDR_MODE 0x00008000
137 #define SDI_DCTRL_DBLOCKSIZE_V2_MASK 0x7fff0000
138 #define SDI_DCTRL_DBLOCKSIZE_V2_SHIFT 16
140 #define SDI_FIFO_BURST_SIZE 8
142 struct sdi_registers {
145 u32 argument; /* 0x08*/
146 u32 command; /* 0x0c*/
147 u32 respcommand; /* 0x10*/
148 u32 response0; /* 0x14*/
149 u32 response1; /* 0x18*/
150 u32 response2; /* 0x1c*/
151 u32 response3; /* 0x20*/
152 u32 datatimer; /* 0x24*/
153 u32 datalength; /* 0x28*/
154 u32 datactrl; /* 0x2c*/
155 u32 datacount; /* 0x30*/
156 u32 status; /* 0x34*/
157 u32 status_clear; /* 0x38*/
160 u32 card_select; /* 0x44*/
161 u32 fifo_count; /* 0x48*/
162 u32 padding1[(0x80-0x4C)>>2];
164 u32 padding2[(0xFE0-0x84)>>2];
165 u32 periph_id0; /* 0xFE0 mmc Peripheral Identifcation Register*/
166 u32 periph_id1; /* 0xFE4*/
167 u32 periph_id2; /* 0xFE8*/
168 u32 periph_id3; /* 0xFEC*/
169 u32 pcell_id0; /* 0xFF0*/
170 u32 pcell_id1; /* 0xFF4*/
171 u32 pcell_id2; /* 0xFF8*/
172 u32 pcell_id3; /* 0xFFC*/
175 struct pl180_mmc_host {
176 struct sdi_registers *base;
179 unsigned int voltages;
181 unsigned int clock_in;
182 unsigned int clock_min;
183 unsigned int clock_max;
184 unsigned int clkdiv_init;
185 unsigned int pwr_init;
189 int arm_pl180_mmci_init(struct pl180_mmc_host *);