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, and MX51 and MX53 have version 3.2, which
38 * 8 512-byte main buffers and
39 * 8 64-byte spare buffers
40 * to support up to 4K byte pagesize nand.
41 * Reading or writing a 2K or 4K page requires only 1 FDI/FDO cycle.
42 * Also some of registers are moved and/or changed meaning as seen below.
44 #if defined(CONFIG_MX27) || defined(CONFIG_MX31)
46 #define is_mxc_nfc_1() 1
47 #define is_mxc_nfc_21() 0
48 #define is_mxc_nfc_32() 0
49 #elif defined(CONFIG_MX25) || defined(CONFIG_MX35)
51 #define is_mxc_nfc_1() 0
52 #define is_mxc_nfc_21() 1
53 #define is_mxc_nfc_32() 0
54 #elif defined(CONFIG_MX51) || defined(CONFIG_MX53)
57 #define is_mxc_nfc_1() 0
58 #define is_mxc_nfc_21() 0
59 #define is_mxc_nfc_32() 1
61 #error "MXC NFC implementation not supported"
63 #define is_mxc_nfc_3() is_mxc_nfc_32()
65 #if defined(MXC_NFC_V1)
66 #define NAND_MXC_NR_BUFS 4
67 #define NAND_MXC_SPARE_BUF_SIZE 16
68 #define NAND_MXC_REG_OFFSET 0xe00
69 #define NAND_MXC_2K_MULTI_CYCLE
70 #elif defined(MXC_NFC_V2_1) || defined(MXC_NFC_V3_2)
71 #define NAND_MXC_NR_BUFS 8
72 #define NAND_MXC_SPARE_BUF_SIZE 64
73 #define NAND_MXC_REG_OFFSET 0x1e00
76 struct mxc_nand_regs {
77 u8 main_area[NAND_MXC_NR_BUFS][0x200];
78 u8 spare_area[NAND_MXC_NR_BUFS][NAND_MXC_SPARE_BUF_SIZE];
80 * reserved size is offset of nfc registers
81 * minus total main and spare sizes
83 u8 reserved1[NAND_MXC_REG_OFFSET
84 - NAND_MXC_NR_BUFS * (512 + NAND_MXC_SPARE_BUF_SIZE)];
85 #if defined(MXC_NFC_V1)
92 u16 ecc_status_result;
96 u16 unlockstart_blkaddr;
97 u16 unlockend_blkaddr;
101 #elif defined(MXC_NFC_V2_1)
107 u32 ecc_status_result;
115 u16 unlockstart_blkaddr;
116 u16 unlockend_blkaddr;
117 u16 unlockstart_blkaddr1;
118 u16 unlockend_blkaddr1;
119 u16 unlockstart_blkaddr2;
120 u16 unlockend_blkaddr2;
121 u16 unlockstart_blkaddr3;
122 u16 unlockend_blkaddr3;
123 #elif defined(MXC_NFC_V3_2)
127 u32 ecc_status_result;
134 struct mxc_nand_ip_regs {
136 u32 wrprot_unlock_blkaddr[8];
145 /* Set FCMD to 1, rest to 0 for Command operation */
148 /* Set FADD to 1, rest to 0 for Address operation */
151 /* Set FDI to 1, rest to 0 for Input operation */
152 #define NFC_INPUT 0x4
154 /* Set FDO to 001, rest to 0 for Data Output operation */
155 #define NFC_OUTPUT 0x8
157 /* Set FDO to 010, rest to 0 for Read ID operation */
160 /* Set FDO to 100, rest to 0 for Read Status operation */
161 #define NFC_STATUS 0x20
163 #if defined(MXC_NFC_V1) || defined(MXC_NFC_V2_1)
164 #define NFC_CONFIG1_SP_EN (1 << 2)
165 #define NFC_CONFIG1_RST (1 << 6)
166 #define NFC_CONFIG1_CE (1 << 7)
167 #elif defined(MXC_NFC_V3_2)
168 #define NFC_CONFIG1_SP_EN (1 << 0)
169 #define NFC_CONFIG1_CE (1 << 1)
170 #define NFC_CONFIG1_RST (1 << 2)
172 #define NFC_V1_V2_CONFIG1_ECC_EN (1 << 3)
173 #define NFC_V1_V2_CONFIG1_INT_MSK (1 << 4)
174 #define NFC_V1_V2_CONFIG1_BIG (1 << 5)
175 #define NFC_V2_CONFIG1_ECC_MODE_4 (1 << 0)
176 #define NFC_V2_CONFIG1_ONE_CYCLE (1 << 8)
177 #define NFC_V2_CONFIG1_FP_INT (1 << 11)
178 #define NFC_V3_CONFIG1_RBA_MASK (0x7 << 4)
179 #define NFC_V3_CONFIG1_RBA(x) (((x) & 0x7) << 4)
181 #define NFC_V1_V2_CONFIG2_INT (1 << 15)
182 #define NFC_V3_CONFIG2_PS_MASK (0x3 << 0)
183 #define NFC_V3_CONFIG2_PS_512 (0 << 0)
184 #define NFC_V3_CONFIG2_PS_2048 (1 << 0)
185 #define NFC_V3_CONFIG2_PS_4096 (2 << 0)
186 #define NFC_V3_CONFIG2_ONE_CYCLE (1 << 2)
187 #define NFC_V3_CONFIG2_ECC_EN (1 << 3)
188 #define NFC_V3_CONFIG2_2CMD_PHASES (1 << 4)
189 #define NFC_V3_CONFIG2_NUM_ADDR_PH0 (1 << 5)
190 #define NFC_V3_CONFIG2_ECC_MODE_8 (1 << 6)
191 #define NFC_V3_CONFIG2_PPB_MASK (0x3 << 7)
192 #define NFC_V3_CONFIG2_PPB(x) (((x) & 0x3) << 7)
193 #define NFC_V3_CONFIG2_EDC_MASK (0x7 << 9)
194 #define NFC_V3_CONFIG2_EDC(x) (((x) & 0x7) << 9)
195 #define NFC_V3_CONFIG2_NUM_ADDR_PH1(x) (((x) & 0x3) << 12)
196 #define NFC_V3_CONFIG2_INT_MSK (1 << 15)
197 #define NFC_V3_CONFIG2_SPAS_MASK (0xff << 16)
198 #define NFC_V3_CONFIG2_SPAS(x) (((x) & 0xff) << 16)
199 #define NFC_V3_CONFIG2_ST_CMD_MASK (0xff << 24)
200 #define NFC_V3_CONFIG2_ST_CMD(x) (((x) & 0xff) << 24)
202 #define NFC_V3_CONFIG3_ADD_OP(x) (((x) & 0x3) << 0)
203 #define NFC_V3_CONFIG3_FW8 (1 << 3)
204 #define NFC_V3_CONFIG3_SBB(x) (((x) & 0x7) << 8)
205 #define NFC_V3_CONFIG3_NUM_OF_DEVS(x) (((x) & 0x7) << 12)
206 #define NFC_V3_CONFIG3_RBB_MODE (1 << 15)
207 #define NFC_V3_CONFIG3_NO_SDMA (1 << 20)
209 #define NFC_V3_WRPROT_UNLOCK (1 << 2)
210 #define NFC_V3_WRPROT_BLS_UNLOCK (2 << 6)
212 #define NFC_V3_IPC_CREQ (1 << 0)
213 #define NFC_V3_IPC_INT (1 << 31)
215 #if defined(MXC_NFC_V1) || defined(MXC_NFC_V2_1)
216 #define operation config2
217 #define readnfc readw
218 #define writenfc writew
219 #elif defined(MXC_NFC_V3_2)
220 #define operation launch
221 #define readnfc readl
222 #define writenfc writel
225 #endif /* __MXC_NAND_H */