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 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #ifndef __ARM_PL180_MMCI_H__
27 #define __ARM_PL180_MMCI_H__
29 #define COMMAND_REG_DELAY 300
30 #define DATA_REG_DELAY 1000
31 #define CLK_CHANGE_DELAY 2000
33 #define INIT_PWR 0xBF /* Power on, full power, not open drain */
34 #define ARM_MCLK (100*1000*1000)
36 /* SDI Power Control register bits */
37 #define SDI_PWR_PWRCTRL_MASK 0x00000003
38 #define SDI_PWR_PWRCTRL_ON 0x00000003
39 #define SDI_PWR_PWRCTRL_OFF 0x00000000
40 #define SDI_PWR_DAT2DIREN 0x00000004
41 #define SDI_PWR_CMDDIREN 0x00000008
42 #define SDI_PWR_DAT0DIREN 0x00000010
43 #define SDI_PWR_DAT31DIREN 0x00000020
44 #define SDI_PWR_OPD 0x00000040
45 #define SDI_PWR_FBCLKEN 0x00000080
46 #define SDI_PWR_DAT74DIREN 0x00000100
47 #define SDI_PWR_RSTEN 0x00000200
49 #define VOLTAGE_WINDOW_MMC 0x00FF8080
50 #define VOLTAGE_WINDOW_SD 0x80010000
52 /* SDI clock control register bits */
53 #define SDI_CLKCR_CLKDIV_MASK 0x000000FF
54 #define SDI_CLKCR_CLKEN 0x00000100
55 #define SDI_CLKCR_PWRSAV 0x00000200
56 #define SDI_CLKCR_BYPASS 0x00000400
57 #define SDI_CLKCR_WIDBUS_MASK 0x00001800
58 #define SDI_CLKCR_WIDBUS_1 0x00000000
59 #define SDI_CLKCR_WIDBUS_4 0x00000800
61 #define SDI_CLKCR_WIDBUS_8 0x00001000
62 #define SDI_CLKCR_NEDGE 0x00002000
63 #define SDI_CLKCR_HWFC_EN 0x00004000
65 #define SDI_CLKCR_CLKDIV_INIT_V1 0x000000C6 /* MCLK/(2*(0xC6+1)) => 505KHz */
66 #define SDI_CLKCR_CLKDIV_INIT_V2 0x000000FD
68 /* SDI command register bits */
69 #define SDI_CMD_CMDINDEX_MASK 0x000000FF
70 #define SDI_CMD_WAITRESP 0x00000040
71 #define SDI_CMD_LONGRESP 0x00000080
72 #define SDI_CMD_WAITINT 0x00000100
73 #define SDI_CMD_WAITPEND 0x00000200
74 #define SDI_CMD_CPSMEN 0x00000400
75 #define SDI_CMD_SDIOSUSPEND 0x00000800
76 #define SDI_CMD_ENDCMDCOMPL 0x00001000
77 #define SDI_CMD_NIEN 0x00002000
78 #define SDI_CMD_CE_ATACMD 0x00004000
79 #define SDI_CMD_CBOOTMODEEN 0x00008000
81 #define SDI_DTIMER_DEFAULT 0xFFFF0000
83 /* SDI Status register bits */
84 #define SDI_STA_CCRCFAIL 0x00000001
85 #define SDI_STA_DCRCFAIL 0x00000002
86 #define SDI_STA_CTIMEOUT 0x00000004
87 #define SDI_STA_DTIMEOUT 0x00000008
88 #define SDI_STA_TXUNDERR 0x00000010
89 #define SDI_STA_RXOVERR 0x00000020
90 #define SDI_STA_CMDREND 0x00000040
91 #define SDI_STA_CMDSENT 0x00000080
92 #define SDI_STA_DATAEND 0x00000100
93 #define SDI_STA_STBITERR 0x00000200
94 #define SDI_STA_DBCKEND 0x00000400
95 #define SDI_STA_CMDACT 0x00000800
96 #define SDI_STA_TXACT 0x00001000
97 #define SDI_STA_RXACT 0x00002000
98 #define SDI_STA_TXFIFOBW 0x00004000
99 #define SDI_STA_RXFIFOBR 0x00008000
100 #define SDI_STA_TXFIFOF 0x00010000
101 #define SDI_STA_RXFIFOF 0x00020000
102 #define SDI_STA_TXFIFOE 0x00040000
103 #define SDI_STA_RXFIFOE 0x00080000
104 #define SDI_STA_TXDAVL 0x00100000
105 #define SDI_STA_RXDAVL 0x00200000
106 #define SDI_STA_SDIOIT 0x00400000
107 #define SDI_STA_CEATAEND 0x00800000
108 #define SDI_STA_CARDBUSY 0x01000000
109 #define SDI_STA_BOOTMODE 0x02000000
110 #define SDI_STA_BOOTACKERR 0x04000000
111 #define SDI_STA_BOOTACKTIMEOUT 0x08000000
112 #define SDI_STA_RSTNEND 0x10000000
114 /* SDI Interrupt Clear register bits */
115 #define SDI_ICR_MASK 0x1DC007FF
116 #define SDI_ICR_CCRCFAILC 0x00000001
117 #define SDI_ICR_DCRCFAILC 0x00000002
118 #define SDI_ICR_CTIMEOUTC 0x00000004
119 #define SDI_ICR_DTIMEOUTC 0x00000008
120 #define SDI_ICR_TXUNDERRC 0x00000010
121 #define SDI_ICR_RXOVERRC 0x00000020
122 #define SDI_ICR_CMDRENDC 0x00000040
123 #define SDI_ICR_CMDSENTC 0x00000080
124 #define SDI_ICR_DATAENDC 0x00000100
125 #define SDI_ICR_STBITERRC 0x00000200
126 #define SDI_ICR_DBCKENDC 0x00000400
127 #define SDI_ICR_SDIOITC 0x00400000
128 #define SDI_ICR_CEATAENDC 0x00800000
129 #define SDI_ICR_BUSYENDC 0x01000000
130 #define SDI_ICR_BOOTACKERRC 0x04000000
131 #define SDI_ICR_BOOTACKTIMEOUTC 0x08000000
132 #define SDI_ICR_RSTNENDC 0x10000000
134 #define SDI_MASK0_MASK 0x1FFFFFFF
136 /* SDI Data control register bits */
137 #define SDI_DCTRL_DTEN 0x00000001
138 #define SDI_DCTRL_DTDIR_IN 0x00000002
139 #define SDI_DCTRL_DTMODE_STREAM 0x00000004
140 #define SDI_DCTRL_DMAEN 0x00000008
141 #define SDI_DCTRL_DBLKSIZE_MASK 0x000000F0
142 #define SDI_DCTRL_RWSTART 0x00000100
143 #define SDI_DCTRL_RWSTOP 0x00000200
144 #define SDI_DCTRL_RWMOD 0x00000200
145 #define SDI_DCTRL_SDIOEN 0x00000800
146 #define SDI_DCTRL_DMAREQCTL 0x00001000
147 #define SDI_DCTRL_DBOOTMODEEN 0x00002000
148 #define SDI_DCTRL_BUSYMODE 0x00004000
149 #define SDI_DCTRL_DDR_MODE 0x00008000
150 #define SDI_DCTRL_DBLOCKSIZE_V2_MASK 0x7fff0000
151 #define SDI_DCTRL_DBLOCKSIZE_V2_SHIFT 16
153 #define SDI_FIFO_BURST_SIZE 8
155 struct sdi_registers {
158 u32 argument; /* 0x08*/
159 u32 command; /* 0x0c*/
160 u32 respcommand; /* 0x10*/
161 u32 response0; /* 0x14*/
162 u32 response1; /* 0x18*/
163 u32 response2; /* 0x1c*/
164 u32 response3; /* 0x20*/
165 u32 datatimer; /* 0x24*/
166 u32 datalength; /* 0x28*/
167 u32 datactrl; /* 0x2c*/
168 u32 datacount; /* 0x30*/
169 u32 status; /* 0x34*/
170 u32 status_clear; /* 0x38*/
173 u32 card_select; /* 0x44*/
174 u32 fifo_count; /* 0x48*/
175 u32 padding1[(0x80-0x4C)>>2];
177 u32 padding2[(0xFE0-0x84)>>2];
178 u32 periph_id0; /* 0xFE0 mmc Peripheral Identifcation Register*/
179 u32 periph_id1; /* 0xFE4*/
180 u32 periph_id2; /* 0xFE8*/
181 u32 periph_id3; /* 0xFEC*/
182 u32 pcell_id0; /* 0xFF0*/
183 u32 pcell_id1; /* 0xFF4*/
184 u32 pcell_id2; /* 0xFF8*/
185 u32 pcell_id3; /* 0xFFC*/
188 struct pl180_mmc_host {
189 struct sdi_registers *base;
192 unsigned int voltages;
194 unsigned int clock_in;
195 unsigned int clock_min;
196 unsigned int clock_max;
197 unsigned int clkdiv_init;
198 unsigned int pwr_init;
202 int arm_pl180_mmci_init(struct pl180_mmc_host *);