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Stefan Roesefa36ae72009-10-27 15:15:55 +01001/*
2 * (C) Copyright 2009
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 *
23 */
24
25#ifndef __CFI_FLASH_H__
26#define __CFI_FLASH_H__
27
28#define FLASH_CMD_CFI 0x98
29#define FLASH_CMD_READ_ID 0x90
30#define FLASH_CMD_RESET 0xff
31#define FLASH_CMD_BLOCK_ERASE 0x20
32#define FLASH_CMD_ERASE_CONFIRM 0xD0
33#define FLASH_CMD_WRITE 0x40
34#define FLASH_CMD_PROTECT 0x60
Stefan Roese6f726f92010-10-25 18:31:48 +020035#define FLASH_CMD_SETUP 0x60
36#define FLASH_CMD_SET_CR_CONFIRM 0x03
Stefan Roesefa36ae72009-10-27 15:15:55 +010037#define FLASH_CMD_PROTECT_SET 0x01
38#define FLASH_CMD_PROTECT_CLEAR 0xD0
39#define FLASH_CMD_CLEAR_STATUS 0x50
40#define FLASH_CMD_READ_STATUS 0x70
41#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
42#define FLASH_CMD_WRITE_BUFFER_PROG 0xE9
43#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
44
45#define FLASH_STATUS_DONE 0x80
46#define FLASH_STATUS_ESS 0x40
47#define FLASH_STATUS_ECLBS 0x20
48#define FLASH_STATUS_PSLBS 0x10
49#define FLASH_STATUS_VPENS 0x08
50#define FLASH_STATUS_PSS 0x04
51#define FLASH_STATUS_DPS 0x02
52#define FLASH_STATUS_R 0x01
53#define FLASH_STATUS_PROTECT 0x01
54
55#define AMD_CMD_RESET 0xF0
56#define AMD_CMD_WRITE 0xA0
57#define AMD_CMD_ERASE_START 0x80
58#define AMD_CMD_ERASE_SECTOR 0x30
59#define AMD_CMD_UNLOCK_START 0xAA
60#define AMD_CMD_UNLOCK_ACK 0x55
61#define AMD_CMD_WRITE_TO_BUFFER 0x25
62#define AMD_CMD_WRITE_BUFFER_CONFIRM 0x29
63
64#define AMD_STATUS_TOGGLE 0x40
65#define AMD_STATUS_ERROR 0x20
66
67#define ATM_CMD_UNLOCK_SECT 0x70
68#define ATM_CMD_SOFTLOCK_START 0x80
69#define ATM_CMD_LOCK_SECT 0x40
70
71#define FLASH_CONTINUATION_CODE 0x7F
72
73#define FLASH_OFFSET_MANUFACTURER_ID 0x00
74#define FLASH_OFFSET_DEVICE_ID 0x01
75#define FLASH_OFFSET_DEVICE_ID2 0x0E
76#define FLASH_OFFSET_DEVICE_ID3 0x0F
77#define FLASH_OFFSET_CFI 0x55
78#define FLASH_OFFSET_CFI_ALT 0x555
79#define FLASH_OFFSET_CFI_RESP 0x10
80#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
81/* extended query table primary address */
82#define FLASH_OFFSET_EXT_QUERY_T_P_ADDR 0x15
83#define FLASH_OFFSET_WTOUT 0x1F
84#define FLASH_OFFSET_WBTOUT 0x20
85#define FLASH_OFFSET_ETOUT 0x21
86#define FLASH_OFFSET_CETOUT 0x22
87#define FLASH_OFFSET_WMAX_TOUT 0x23
88#define FLASH_OFFSET_WBMAX_TOUT 0x24
89#define FLASH_OFFSET_EMAX_TOUT 0x25
90#define FLASH_OFFSET_CEMAX_TOUT 0x26
91#define FLASH_OFFSET_SIZE 0x27
92#define FLASH_OFFSET_INTERFACE 0x28
93#define FLASH_OFFSET_BUFFER_SIZE 0x2A
94#define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
95#define FLASH_OFFSET_ERASE_REGIONS 0x2D
96#define FLASH_OFFSET_PROTECT 0x02
97#define FLASH_OFFSET_USER_PROTECTION 0x85
98#define FLASH_OFFSET_INTEL_PROTECTION 0x81
99
100#define CFI_CMDSET_NONE 0
101#define CFI_CMDSET_INTEL_EXTENDED 1
102#define CFI_CMDSET_AMD_STANDARD 2
103#define CFI_CMDSET_INTEL_STANDARD 3
104#define CFI_CMDSET_AMD_EXTENDED 4
105#define CFI_CMDSET_MITSU_STANDARD 256
106#define CFI_CMDSET_MITSU_EXTENDED 257
107#define CFI_CMDSET_SST 258
108#define CFI_CMDSET_INTEL_PROG_REGIONS 512
109
110#ifdef CONFIG_SYS_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
111# undef FLASH_CMD_RESET
112# define FLASH_CMD_RESET AMD_CMD_RESET /* use AMD-Reset instead */
113#endif
114
115#define NUM_ERASE_REGIONS 4 /* max. number of erase regions */
116
117typedef union {
118 unsigned char c;
119 unsigned short w;
120 unsigned long l;
121 unsigned long long ll;
122} cfiword_t;
123
124/* CFI standard query structure */
125struct cfi_qry {
126 u8 qry[3];
127 u16 p_id;
128 u16 p_adr;
129 u16 a_id;
130 u16 a_adr;
131 u8 vcc_min;
132 u8 vcc_max;
133 u8 vpp_min;
134 u8 vpp_max;
135 u8 word_write_timeout_typ;
136 u8 buf_write_timeout_typ;
137 u8 block_erase_timeout_typ;
138 u8 chip_erase_timeout_typ;
139 u8 word_write_timeout_max;
140 u8 buf_write_timeout_max;
141 u8 block_erase_timeout_max;
142 u8 chip_erase_timeout_max;
143 u8 dev_size;
144 u16 interface_desc;
145 u16 max_buf_write_size;
146 u8 num_erase_regions;
147 u32 erase_region_info[NUM_ERASE_REGIONS];
148} __attribute__((packed));
149
150struct cfi_pri_hdr {
151 u8 pri[3];
152 u8 major_version;
153 u8 minor_version;
154} __attribute__((packed));
155
Stefan Roeseca5def32010-08-31 10:00:10 +0200156#ifndef CONFIG_SYS_FLASH_BANKS_LIST
157#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE }
158#endif
159
160/*
161 * CFI_MAX_FLASH_BANKS only used for flash_info struct declaration.
162 *
163 * Use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined
164 */
165#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT)
166#define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks)
167#define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT
168/* board code can update this variable before CFI detection */
169extern int cfi_flash_num_flash_banks;
170#else
171#define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS
172#endif
173
Stefan Roesefa36ae72009-10-27 15:15:55 +0100174void flash_write_cmd(flash_info_t * info, flash_sect_t sect,
175 uint offset, u32 cmd);
176
177#endif /* __CFI_FLASH_H__ */