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 /* need definition of struct mmc_config */
19 #define COMMAND_REG_DELAY 300
20 #define DATA_REG_DELAY 1000
21 #define CLK_CHANGE_DELAY 2000
23 #define INIT_PWR 0xBF /* Power on, full power, not open drain */
24 #define ARM_MCLK (100*1000*1000)
26 /* SDI Power Control register bits */
27 #define SDI_PWR_PWRCTRL_MASK 0x00000003
28 #define SDI_PWR_PWRCTRL_ON 0x00000003
29 #define SDI_PWR_PWRCTRL_OFF 0x00000000
30 #define SDI_PWR_DAT2DIREN 0x00000004
31 #define SDI_PWR_CMDDIREN 0x00000008
32 #define SDI_PWR_DAT0DIREN 0x00000010
33 #define SDI_PWR_DAT31DIREN 0x00000020
34 #define SDI_PWR_OPD 0x00000040
35 #define SDI_PWR_FBCLKEN 0x00000080
36 #define SDI_PWR_DAT74DIREN 0x00000100
37 #define SDI_PWR_RSTEN 0x00000200
39 #define VOLTAGE_WINDOW_MMC 0x00FF8080
40 #define VOLTAGE_WINDOW_SD 0x80010000
42 /* SDI clock control register bits */
43 #define SDI_CLKCR_CLKDIV_MASK 0x000000FF
44 #define SDI_CLKCR_CLKEN 0x00000100
45 #define SDI_CLKCR_PWRSAV 0x00000200
46 #define SDI_CLKCR_BYPASS 0x00000400
47 #define SDI_CLKCR_WIDBUS_MASK 0x00001800
48 #define SDI_CLKCR_WIDBUS_1 0x00000000
49 #define SDI_CLKCR_WIDBUS_4 0x00000800
51 #define SDI_CLKCR_WIDBUS_8 0x00001000
52 #define SDI_CLKCR_NEDGE 0x00002000
53 #define SDI_CLKCR_HWFC_EN 0x00004000
55 #define SDI_CLKCR_CLKDIV_INIT_V1 0x000000C6 /* MCLK/(2*(0xC6+1)) => 505KHz */
56 #define SDI_CLKCR_CLKDIV_INIT_V2 0x000000FD
58 /* SDI command register bits */
59 #define SDI_CMD_CMDINDEX_MASK 0x000000FF
60 #define SDI_CMD_WAITRESP 0x00000040
61 #define SDI_CMD_LONGRESP 0x00000080
62 #define SDI_CMD_WAITINT 0x00000100
63 #define SDI_CMD_WAITPEND 0x00000200
64 #define SDI_CMD_CPSMEN 0x00000400
65 #define SDI_CMD_SDIOSUSPEND 0x00000800
66 #define SDI_CMD_ENDCMDCOMPL 0x00001000
67 #define SDI_CMD_NIEN 0x00002000
68 #define SDI_CMD_CE_ATACMD 0x00004000
69 #define SDI_CMD_CBOOTMODEEN 0x00008000
71 #define SDI_DTIMER_DEFAULT 0xFFFF0000
73 /* SDI Status register bits */
74 #define SDI_STA_CCRCFAIL 0x00000001
75 #define SDI_STA_DCRCFAIL 0x00000002
76 #define SDI_STA_CTIMEOUT 0x00000004
77 #define SDI_STA_DTIMEOUT 0x00000008
78 #define SDI_STA_TXUNDERR 0x00000010
79 #define SDI_STA_RXOVERR 0x00000020
80 #define SDI_STA_CMDREND 0x00000040
81 #define SDI_STA_CMDSENT 0x00000080
82 #define SDI_STA_DATAEND 0x00000100
83 #define SDI_STA_STBITERR 0x00000200
84 #define SDI_STA_DBCKEND 0x00000400
85 #define SDI_STA_CMDACT 0x00000800
86 #define SDI_STA_TXACT 0x00001000
87 #define SDI_STA_RXACT 0x00002000
88 #define SDI_STA_TXFIFOBW 0x00004000
89 #define SDI_STA_RXFIFOBR 0x00008000
90 #define SDI_STA_TXFIFOF 0x00010000
91 #define SDI_STA_RXFIFOF 0x00020000
92 #define SDI_STA_TXFIFOE 0x00040000
93 #define SDI_STA_RXFIFOE 0x00080000
94 #define SDI_STA_TXDAVL 0x00100000
95 #define SDI_STA_RXDAVL 0x00200000
96 #define SDI_STA_SDIOIT 0x00400000
97 #define SDI_STA_CEATAEND 0x00800000
98 #define SDI_STA_CARDBUSY 0x01000000
99 #define SDI_STA_BOOTMODE 0x02000000
100 #define SDI_STA_BOOTACKERR 0x04000000
101 #define SDI_STA_BOOTACKTIMEOUT 0x08000000
102 #define SDI_STA_RSTNEND 0x10000000
104 /* SDI Interrupt Clear register bits */
105 #define SDI_ICR_MASK 0x1DC007FF
106 #define SDI_ICR_CCRCFAILC 0x00000001
107 #define SDI_ICR_DCRCFAILC 0x00000002
108 #define SDI_ICR_CTIMEOUTC 0x00000004
109 #define SDI_ICR_DTIMEOUTC 0x00000008
110 #define SDI_ICR_TXUNDERRC 0x00000010
111 #define SDI_ICR_RXOVERRC 0x00000020
112 #define SDI_ICR_CMDRENDC 0x00000040
113 #define SDI_ICR_CMDSENTC 0x00000080
114 #define SDI_ICR_DATAENDC 0x00000100
115 #define SDI_ICR_STBITERRC 0x00000200
116 #define SDI_ICR_DBCKENDC 0x00000400
117 #define SDI_ICR_SDIOITC 0x00400000
118 #define SDI_ICR_CEATAENDC 0x00800000
119 #define SDI_ICR_BUSYENDC 0x01000000
120 #define SDI_ICR_BOOTACKERRC 0x04000000
121 #define SDI_ICR_BOOTACKTIMEOUTC 0x08000000
122 #define SDI_ICR_RSTNENDC 0x10000000
124 #define SDI_MASK0_MASK 0x1FFFFFFF
126 /* SDI Data control register bits */
127 #define SDI_DCTRL_DTEN 0x00000001
128 #define SDI_DCTRL_DTDIR_IN 0x00000002
129 #define SDI_DCTRL_DTMODE_STREAM 0x00000004
130 #define SDI_DCTRL_DMAEN 0x00000008
131 #define SDI_DCTRL_DBLKSIZE_MASK 0x000000F0
132 #define SDI_DCTRL_RWSTART 0x00000100
133 #define SDI_DCTRL_RWSTOP 0x00000200
134 #define SDI_DCTRL_RWMOD 0x00000200
135 #define SDI_DCTRL_SDIOEN 0x00000800
136 #define SDI_DCTRL_DMAREQCTL 0x00001000
137 #define SDI_DCTRL_DBOOTMODEEN 0x00002000
138 #define SDI_DCTRL_BUSYMODE 0x00004000
139 #define SDI_DCTRL_DDR_MODE 0x00008000
140 #define SDI_DCTRL_DBLOCKSIZE_V2_MASK 0x7fff0000
141 #define SDI_DCTRL_DBLOCKSIZE_V2_SHIFT 16
143 #define SDI_FIFO_BURST_SIZE 8
145 struct sdi_registers {
148 u32 argument; /* 0x08*/
149 u32 command; /* 0x0c*/
150 u32 respcommand; /* 0x10*/
151 u32 response0; /* 0x14*/
152 u32 response1; /* 0x18*/
153 u32 response2; /* 0x1c*/
154 u32 response3; /* 0x20*/
155 u32 datatimer; /* 0x24*/
156 u32 datalength; /* 0x28*/
157 u32 datactrl; /* 0x2c*/
158 u32 datacount; /* 0x30*/
159 u32 status; /* 0x34*/
160 u32 status_clear; /* 0x38*/
163 u32 card_select; /* 0x44*/
164 u32 fifo_count; /* 0x48*/
165 u32 padding1[(0x80-0x4C)>>2];
167 u32 padding2[(0xFE0-0x84)>>2];
168 u32 periph_id0; /* 0xFE0 mmc Peripheral Identifcation Register*/
169 u32 periph_id1; /* 0xFE4*/
170 u32 periph_id2; /* 0xFE8*/
171 u32 periph_id3; /* 0xFEC*/
172 u32 pcell_id0; /* 0xFF0*/
173 u32 pcell_id1; /* 0xFF4*/
174 u32 pcell_id2; /* 0xFF8*/
175 u32 pcell_id3; /* 0xFFC*/
178 struct pl180_mmc_host {
179 struct sdi_registers *base;
182 unsigned int voltages;
184 unsigned int clock_in;
185 unsigned int clock_min;
186 unsigned int clock_max;
187 unsigned int clkdiv_init;
188 unsigned int pwr_init;
190 struct mmc_config cfg;
193 int arm_pl180_mmci_init(struct pl180_mmc_host *);