2 * (c) 2009 Magnus Lilja <lilja.magnus@gmail.com>
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
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.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * Register map and bit definitions for the Freescale NAND Flash Controller
28 * present in various i.MX devices.
30 * MX31 and MX27 have version 1, which has:
31 * 4 512-byte main buffers and
32 * 4 16-byte spare buffers
33 * to support up to 2K byte pagesize nand.
34 * Reading or writing a 2K page requires 4 FDI/FDO cycles.
36 * MX25 and MX35 have version 2.1, which has:
37 * 8 512-byte main buffers and
38 * 8 64-byte spare buffers
39 * to support up to 4K byte pagesize nand.
40 * Reading or writing a 2K or 4K page requires only 1 FDI/FDO cycle.
41 * Also some of registers are moved and/or changed meaning as seen below.
43 #if defined(CONFIG_MX27) || defined(CONFIG_MX31)
45 #define is_mxc_nfc_1() 1
46 #define is_mxc_nfc_21() 0
47 #elif defined(CONFIG_MX25) || defined(CONFIG_MX35)
49 #define is_mxc_nfc_1() 0
50 #define is_mxc_nfc_21() 1
52 #error "MXC NFC implementation not supported"
55 #if defined(MXC_NFC_V1)
56 #define NAND_MXC_NR_BUFS 4
57 #define NAND_MXC_SPARE_BUF_SIZE 16
58 #define NAND_MXC_REG_OFFSET 0xe00
59 #define NAND_MXC_2K_MULTI_CYCLE
60 #elif defined(MXC_NFC_V2_1)
61 #define NAND_MXC_NR_BUFS 8
62 #define NAND_MXC_SPARE_BUF_SIZE 64
63 #define NAND_MXC_REG_OFFSET 0x1e00
67 u8 main_area[NAND_MXC_NR_BUFS][0x200];
68 u8 spare_area[NAND_MXC_NR_BUFS][NAND_MXC_SPARE_BUF_SIZE];
70 * reserved size is offset of nfc registers
71 * minus total main and spare sizes
73 u8 reserved1[NAND_MXC_REG_OFFSET
74 - NAND_MXC_NR_BUFS * (512 + NAND_MXC_SPARE_BUF_SIZE)];
75 #if defined(MXC_NFC_V1)
82 u16 ecc_status_result;
86 u16 unlockstart_blkaddr;
87 u16 unlockend_blkaddr;
91 #elif defined(MXC_NFC_V2_1)
97 u32 ecc_status_result;
105 u16 unlockstart_blkaddr;
106 u16 unlockend_blkaddr;
107 u16 unlockstart_blkaddr1;
108 u16 unlockend_blkaddr1;
109 u16 unlockstart_blkaddr2;
110 u16 unlockend_blkaddr2;
111 u16 unlockstart_blkaddr3;
112 u16 unlockend_blkaddr3;
117 * Set INT to 0, FCMD to 1, rest to 0 in NFC_CONFIG2 Register for Command
123 * Set INT to 0, FADD to 1, rest to 0 in NFC_CONFIG2 Register for Address
129 * Set INT to 0, FDI to 1, rest to 0 in NFC_CONFIG2 Register for Input
132 #define NFC_INPUT 0x4
135 * Set INT to 0, FDO to 001, rest to 0 in NFC_CONFIG2 Register for Data
138 #define NFC_OUTPUT 0x8
141 * Set INT to 0, FD0 to 010, rest to 0 in NFC_CONFIG2 Register for Read ID
147 * Set INT to 0, FDO to 100, rest to 0 in NFC_CONFIG2 Register for Read
150 #define NFC_STATUS 0x20
153 * Set INT to 1, rest to 0 in NFC_CONFIG2 Register for Read Status
156 #define NFC_INT 0x8000
159 #define NFC_4_8N_ECC (1 << 0)
161 #define NFC_SP_EN (1 << 2)
162 #define NFC_ECC_EN (1 << 3)
163 #define NFC_INT_MSK (1 << 4)
164 #define NFC_BIG (1 << 5)
165 #define NFC_RST (1 << 6)
166 #define NFC_CE (1 << 7)
167 #define NFC_ONE_CYCLE (1 << 8)
168 #define NFC_FP_INT (1 << 11)
170 #endif /* __FSL_NFC_H */