nand : Add Freescale iMX27 nand flash controller support
[openocd.git] / src / flash / nand / mx2.h
1
2 /***************************************************************************
3 * Copyright (C) 2009 by Alexei Babich *
4 * Rezonans plc., Chelyabinsk, Russia *
5 * impatt@mail.ru *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the *
19 * Free Software Foundation, Inc., *
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
21 ***************************************************************************/
22
23 /*
24 * Freescale iMX2* OpenOCD NAND Flash controller support.
25 * based on Freescale iMX3* OpenOCD NAND Flash controller support.
26 *
27 * Many thanks to Ben Dooks for writing s3c24xx driver.
28 */
29
30 #define MX2_NF_BASE_ADDR 0xd8000000
31 #define MX2_NF_BUFSIZ (MX2_NF_BASE_ADDR + 0xe00)
32 #define MX2_NF_BUFADDR (MX2_NF_BASE_ADDR + 0xe04)
33 #define MX2_NF_FADDR (MX2_NF_BASE_ADDR + 0xe06)
34 #define MX2_NF_FCMD (MX2_NF_BASE_ADDR + 0xe08)
35 #define MX2_NF_BUFCFG (MX2_NF_BASE_ADDR + 0xe0a)
36 #define MX2_NF_ECCSTATUS (MX2_NF_BASE_ADDR + 0xe0c)
37 #define MX2_NF_ECCMAINPOS (MX2_NF_BASE_ADDR + 0xe0e)
38 #define MX2_NF_ECCSPAREPOS (MX2_NF_BASE_ADDR + 0xe10)
39 #define MX2_NF_FWP (MX2_NF_BASE_ADDR + 0xe12)
40 #define MX2_NF_LOCKSTART (MX2_NF_BASE_ADDR + 0xe14)
41 #define MX2_NF_LOCKEND (MX2_NF_BASE_ADDR + 0xe16)
42 #define MX2_NF_FWPSTATUS (MX2_NF_BASE_ADDR + 0xe18)
43 /*
44 * all bits not marked as self-clearing bit
45 */
46 #define MX2_NF_CFG1 (MX2_NF_BASE_ADDR + 0xe1a)
47 #define MX2_NF_CFG2 (MX2_NF_BASE_ADDR + 0xe1c)
48
49 #define MX2_NF_MAIN_BUFFER0 (MX2_NF_BASE_ADDR + 0x0000)
50 #define MX2_NF_MAIN_BUFFER1 (MX2_NF_BASE_ADDR + 0x0200)
51 #define MX2_NF_MAIN_BUFFER2 (MX2_NF_BASE_ADDR + 0x0400)
52 #define MX2_NF_MAIN_BUFFER3 (MX2_NF_BASE_ADDR + 0x0600)
53 #define MX2_NF_SPARE_BUFFER0 (MX2_NF_BASE_ADDR + 0x0800)
54 #define MX2_NF_SPARE_BUFFER1 (MX2_NF_BASE_ADDR + 0x0810)
55 #define MX2_NF_SPARE_BUFFER2 (MX2_NF_BASE_ADDR + 0x0820)
56 #define MX2_NF_SPARE_BUFFER3 (MX2_NF_BASE_ADDR + 0x0830)
57 #define MX2_NF_MAIN_BUFFER_LEN 512
58 #define MX2_NF_SPARE_BUFFER_LEN 16
59 #define MX2_NF_LAST_BUFFER_ADDR ((MX2_NF_SPARE_BUFFER3) + MX2_NF_SPARE_BUFFER_LEN - 2)
60
61 /* bits in MX2_NF_CFG1 register */
62 #define MX2_NF_BIT_SPARE_ONLY_EN (1<<2)
63 #define MX2_NF_BIT_ECC_EN (1<<3)
64 #define MX2_NF_BIT_INT_DIS (1<<4)
65 #define MX2_NF_BIT_BE_EN (1<<5)
66 #define MX2_NF_BIT_RESET_EN (1<<6)
67 #define MX2_NF_BIT_FORCE_CE (1<<7)
68
69 /* bits in MX2_NF_CFG2 register */
70
71 /*Flash Command Input*/
72 #define MX2_NF_BIT_OP_FCI (1<<0)
73 /*
74 * Flash Address Input
75 */
76 #define MX2_NF_BIT_OP_FAI (1<<1)
77 /*
78 * Flash Data Input
79 */
80 #define MX2_NF_BIT_OP_FDI (1<<2)
81
82 /* see "enum mx_dataout_type" below */
83 #define MX2_NF_BIT_DATAOUT_TYPE(x) ((x)<<3)
84 #define MX2_NF_BIT_OP_DONE (1<<15)
85
86 #define MX2_CCM_CGR2 0x53f80028
87 #define MX2_GPR 0x43fac008
88 //#define MX2_PCSR 0x53f8000c
89 #define MX2_FMCR 0x10027814
90 #define MX2_FMCR_NF_16BIT_SEL (1<<4)
91 #define MX2_FMCR_NF_FMS (1<<5)
92
93 enum mx_dataout_type
94 {
95 MX2_NF_DATAOUT_PAGE = 1,
96 MX2_NF_DATAOUT_NANDID = 2,
97 MX2_NF_DATAOUT_NANDSTATUS = 4,
98 };
99 enum mx_nf_finalize_action
100 {
101 MX2_NF_FIN_NONE,
102 MX2_NF_FIN_DATAOUT,
103 };
104
105 struct mx2_nf_flags
106 {
107 unsigned host_little_endian:1;
108 unsigned target_little_endian:1;
109 unsigned nand_readonly:1;
110 unsigned one_kb_sram:1;
111 unsigned hw_ecc_enabled:1;
112 };
113
114 struct mx2_nf_controller
115 {
116 struct target *target;
117 enum mx_dataout_type optype;
118 enum mx_nf_finalize_action fin;
119 struct mx2_nf_flags flags;
120 };