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wdenk5653fc32004-02-08 22:55:38 +00001/*
wdenkbf9e3b32004-02-12 00:47:09 +00002 * (C) Copyright 2002-2004
wdenk5653fc32004-02-08 22:55:38 +00003 * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com
4 *
5 * Copyright (C) 2003 Arabella Software Ltd.
6 * Yuli Barcohen <yuli@arabellasw.com>
wdenk5653fc32004-02-08 22:55:38 +00007 *
wdenkbf9e3b32004-02-12 00:47:09 +00008 * Copyright (C) 2004
9 * Ed Okerson
Stefan Roese260421a2006-11-13 13:55:24 +010010 *
11 * Copyright (C) 2006
12 * Tolunay Orkun <listmember@orkun.us>
wdenkbf9e3b32004-02-12 00:47:09 +000013 *
wdenk5653fc32004-02-08 22:55:38 +000014 * See file CREDITS for list of people who contributed to this
15 * project.
16 *
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2 of
20 * the License, or (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 * MA 02111-1307 USA
31 *
wdenk5653fc32004-02-08 22:55:38 +000032 */
33
34/* The DEBUG define must be before common to enable debugging */
wdenk2d1a5372004-02-23 19:30:57 +000035/* #define DEBUG */
36
wdenk5653fc32004-02-08 22:55:38 +000037#include <common.h>
38#include <asm/processor.h>
Haiying Wang3a197b22007-02-21 16:52:31 +010039#include <asm/io.h>
wdenk4c0d4c32004-06-09 17:34:58 +000040#include <asm/byteorder.h>
wdenk2a8af182005-04-13 10:02:42 +000041#include <environment.h>
Stefan Roesefa36ae72009-10-27 15:15:55 +010042#include <mtd/cfi_flash.h>
wdenk028ab6b2004-02-23 23:54:43 +000043
wdenk5653fc32004-02-08 22:55:38 +000044/*
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +010045 * This file implements a Common Flash Interface (CFI) driver for
46 * U-Boot.
47 *
48 * The width of the port and the width of the chips are determined at
49 * initialization. These widths are used to calculate the address for
50 * access CFI data structures.
wdenk5653fc32004-02-08 22:55:38 +000051 *
52 * References
53 * JEDEC Standard JESD68 - Common Flash Interface (CFI)
54 * JEDEC Standard JEP137-A Common Flash Interface (CFI) ID Codes
55 * Intel Application Note 646 Common Flash Interface (CFI) and Command Sets
56 * Intel 290667-008 3 Volt Intel StrataFlash Memory datasheet
Stefan Roese260421a2006-11-13 13:55:24 +010057 * AMD CFI Specification, Release 2.0 December 1, 2001
58 * AMD/Spansion Application Note: Migration from Single-byte to Three-byte
59 * Device IDs, Publication Number 25538 Revision A, November 8, 2001
wdenk5653fc32004-02-08 22:55:38 +000060 *
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020061 * Define CONFIG_SYS_WRITE_SWAPPED_DATA, if you have to swap the Bytes between
Heiko Schocherd0b6e142007-01-19 18:05:26 +010062 * reading and writing ... (yes there is such a Hardware).
wdenk5653fc32004-02-08 22:55:38 +000063 */
64
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +010065static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT };
Mike Frysinger4ffeab22010-12-22 09:41:13 -050066#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik6ea808e2008-11-17 15:49:32 +010067static uint flash_verbose = 1;
Mike Frysinger4ffeab22010-12-22 09:41:13 -050068#else
69#define flash_verbose 1
70#endif
Wolfgang Denk92eb7292006-12-27 01:26:13 +010071
Wolfgang Denk2a112b22008-08-08 16:39:54 +020072flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */
73
Stefan Roese79b4cda2006-02-28 15:29:58 +010074/*
75 * Check if chip width is defined. If not, start detecting with 8bit.
76 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020077#ifndef CONFIG_SYS_FLASH_CFI_WIDTH
78#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_8BIT
Stefan Roese79b4cda2006-02-28 15:29:58 +010079#endif
80
Stefan Roese6f726f92010-10-25 18:31:48 +020081/*
82 * 0xffff is an undefined value for the configuration register. When
83 * this value is returned, the configuration register shall not be
84 * written at all (default mode).
85 */
86static u16 cfi_flash_config_reg(int i)
87{
88#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
89 return ((u16 [])CONFIG_SYS_CFI_FLASH_CONFIG_REGS)[i];
90#else
91 return 0xffff;
92#endif
93}
94
Stefan Roeseca5def32010-08-31 10:00:10 +020095#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT)
96int cfi_flash_num_flash_banks = CONFIG_SYS_MAX_FLASH_BANKS_DETECT;
97#endif
98
Stefan Roeseb00e19c2010-08-30 10:11:51 +020099static phys_addr_t __cfi_flash_bank_addr(int i)
100{
101 return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i];
102}
103phys_addr_t cfi_flash_bank_addr(int i)
104 __attribute__((weak, alias("__cfi_flash_bank_addr")));
105
Ilya Yanokec50a8e2010-10-21 17:20:12 +0200106static unsigned long __cfi_flash_bank_size(int i)
107{
108#ifdef CONFIG_SYS_FLASH_BANKS_SIZES
109 return ((unsigned long [])CONFIG_SYS_FLASH_BANKS_SIZES)[i];
110#else
111 return 0;
112#endif
113}
114unsigned long cfi_flash_bank_size(int i)
115 __attribute__((weak, alias("__cfi_flash_bank_size")));
116
Stefan Roese45aa5a72008-11-17 14:45:22 +0100117static void __flash_write8(u8 value, void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100118{
119 __raw_writeb(value, addr);
120}
121
Stefan Roese45aa5a72008-11-17 14:45:22 +0100122static void __flash_write16(u16 value, void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100123{
124 __raw_writew(value, addr);
125}
126
Stefan Roese45aa5a72008-11-17 14:45:22 +0100127static void __flash_write32(u32 value, void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100128{
129 __raw_writel(value, addr);
130}
131
Stefan Roese45aa5a72008-11-17 14:45:22 +0100132static void __flash_write64(u64 value, void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100133{
134 /* No architectures currently implement __raw_writeq() */
135 *(volatile u64 *)addr = value;
136}
137
Stefan Roese45aa5a72008-11-17 14:45:22 +0100138static u8 __flash_read8(void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100139{
140 return __raw_readb(addr);
141}
142
Stefan Roese45aa5a72008-11-17 14:45:22 +0100143static u16 __flash_read16(void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100144{
145 return __raw_readw(addr);
146}
147
Stefan Roese45aa5a72008-11-17 14:45:22 +0100148static u32 __flash_read32(void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100149{
150 return __raw_readl(addr);
151}
152
Daniel Hellstrom97bf85d2008-03-28 20:40:19 +0100153static u64 __flash_read64(void *addr)
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100154{
155 /* No architectures currently implement __raw_readq() */
156 return *(volatile u64 *)addr;
157}
158
Stefan Roese45aa5a72008-11-17 14:45:22 +0100159#ifdef CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
160void flash_write8(u8 value, void *addr)__attribute__((weak, alias("__flash_write8")));
161void flash_write16(u16 value, void *addr)__attribute__((weak, alias("__flash_write16")));
162void flash_write32(u32 value, void *addr)__attribute__((weak, alias("__flash_write32")));
163void flash_write64(u64 value, void *addr)__attribute__((weak, alias("__flash_write64")));
164u8 flash_read8(void *addr)__attribute__((weak, alias("__flash_read8")));
165u16 flash_read16(void *addr)__attribute__((weak, alias("__flash_read16")));
166u32 flash_read32(void *addr)__attribute__((weak, alias("__flash_read32")));
Daniel Hellstrom97bf85d2008-03-28 20:40:19 +0100167u64 flash_read64(void *addr)__attribute__((weak, alias("__flash_read64")));
Stefan Roese45aa5a72008-11-17 14:45:22 +0100168#else
169#define flash_write8 __flash_write8
170#define flash_write16 __flash_write16
171#define flash_write32 __flash_write32
172#define flash_write64 __flash_write64
173#define flash_read8 __flash_read8
174#define flash_read16 __flash_read16
175#define flash_read32 __flash_read32
176#define flash_read64 __flash_read64
177#endif
Daniel Hellstrom97bf85d2008-03-28 20:40:19 +0100178
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200179/*-----------------------------------------------------------------------
180 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200181#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE)
Heiko Schocher4f975672009-02-10 09:53:29 +0100182flash_info_t *flash_get_info(ulong base)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200183{
184 int i;
Stefan Roesecba34aa2010-08-30 11:14:38 +0200185 flash_info_t *info = NULL;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200186
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200187 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200188 info = & flash_info[i];
189 if (info->size && info->start[0] <= base &&
190 base <= info->start[0] + info->size - 1)
191 break;
192 }
193
Stefan Roesecba34aa2010-08-30 11:14:38 +0200194 return info;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200195}
wdenk5653fc32004-02-08 22:55:38 +0000196#endif
197
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100198unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
199{
200 if (sect != (info->sector_count - 1))
201 return info->start[sect + 1] - info->start[sect];
202 else
203 return info->start[0] + info->size - info->start[sect];
204}
205
wdenk5653fc32004-02-08 22:55:38 +0000206/*-----------------------------------------------------------------------
207 * create an address based on the offset and the port width
208 */
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100209static inline void *
210flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
wdenk5653fc32004-02-08 22:55:38 +0000211{
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100212 unsigned int byte_offset = offset * info->portwidth;
213
Becky Bruce09ce9922009-02-02 16:34:51 -0600214 return (void *)(info->start[sect] + byte_offset);
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100215}
216
217static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
218 unsigned int offset, void *addr)
219{
wdenk5653fc32004-02-08 22:55:38 +0000220}
wdenkbf9e3b32004-02-12 00:47:09 +0000221
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200222/*-----------------------------------------------------------------------
223 * make a proper sized command based on the port and chip widths
224 */
Sebastian Siewior7288f972008-07-15 13:35:23 +0200225static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200226{
227 int i;
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400228 int cword_offset;
229 int cp_offset;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200230#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Sebastian Siewior340ccb22008-07-16 20:04:49 +0200231 u32 cmd_le = cpu_to_le32(cmd);
232#endif
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400233 uchar val;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200234 uchar *cp = (uchar *) cmdbuf;
235
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400236 for (i = info->portwidth; i > 0; i--){
237 cword_offset = (info->portwidth-i)%info->chipwidth;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200238#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400239 cp_offset = info->portwidth - i;
Sebastian Siewior340ccb22008-07-16 20:04:49 +0200240 val = *((uchar*)&cmd_le + cword_offset);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200241#else
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400242 cp_offset = i - 1;
Sebastian Siewior7288f972008-07-15 13:35:23 +0200243 val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200244#endif
Sebastian Siewior7288f972008-07-15 13:35:23 +0200245 cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val;
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400246 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200247}
248
wdenkbf9e3b32004-02-12 00:47:09 +0000249#ifdef DEBUG
250/*-----------------------------------------------------------------------
251 * Debug support
252 */
Haavard Skinnemoen30557932007-12-13 12:56:29 +0100253static void print_longlong (char *str, unsigned long long data)
wdenkbf9e3b32004-02-12 00:47:09 +0000254{
255 int i;
256 char *cp;
257
Wolfgang Denk657f2062009-02-04 09:42:20 +0100258 cp = (char *) &data;
wdenkbf9e3b32004-02-12 00:47:09 +0000259 for (i = 0; i < 8; i++)
260 sprintf (&str[i * 2], "%2.2x", *cp++);
261}
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200262
Haavard Skinnemoene23741f2007-12-14 15:36:16 +0100263static void flash_printqry (struct cfi_qry *qry)
wdenkbf9e3b32004-02-12 00:47:09 +0000264{
Haavard Skinnemoene23741f2007-12-14 15:36:16 +0100265 u8 *p = (u8 *)qry;
wdenkbf9e3b32004-02-12 00:47:09 +0000266 int x, y;
267
Haavard Skinnemoene23741f2007-12-14 15:36:16 +0100268 for (x = 0; x < sizeof(struct cfi_qry); x += 16) {
269 debug("%02x : ", x);
270 for (y = 0; y < 16; y++)
271 debug("%2.2x ", p[x + y]);
272 debug(" ");
wdenkbf9e3b32004-02-12 00:47:09 +0000273 for (y = 0; y < 16; y++) {
Haavard Skinnemoene23741f2007-12-14 15:36:16 +0100274 unsigned char c = p[x + y];
275 if (c >= 0x20 && c <= 0x7e)
276 debug("%c", c);
277 else
278 debug(".");
wdenkbf9e3b32004-02-12 00:47:09 +0000279 }
Haavard Skinnemoene23741f2007-12-14 15:36:16 +0100280 debug("\n");
wdenkbf9e3b32004-02-12 00:47:09 +0000281 }
282}
wdenkbf9e3b32004-02-12 00:47:09 +0000283#endif
284
285
wdenk5653fc32004-02-08 22:55:38 +0000286/*-----------------------------------------------------------------------
287 * read a character at a port width address
288 */
Haavard Skinnemoen30557932007-12-13 12:56:29 +0100289static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
wdenk5653fc32004-02-08 22:55:38 +0000290{
291 uchar *cp;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100292 uchar retval;
wdenkbf9e3b32004-02-12 00:47:09 +0000293
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100294 cp = flash_map (info, 0, offset);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200295#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100296 retval = flash_read8(cp);
wdenkbf9e3b32004-02-12 00:47:09 +0000297#else
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100298 retval = flash_read8(cp + info->portwidth - 1);
wdenkbf9e3b32004-02-12 00:47:09 +0000299#endif
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100300 flash_unmap (info, 0, offset, cp);
301 return retval;
wdenk5653fc32004-02-08 22:55:38 +0000302}
303
304/*-----------------------------------------------------------------------
Tor Krill90447ec2008-03-28 11:29:10 +0100305 * read a word at a port width address, assume 16bit bus
306 */
307static inline ushort flash_read_word (flash_info_t * info, uint offset)
308{
309 ushort *addr, retval;
310
311 addr = flash_map (info, 0, offset);
312 retval = flash_read16 (addr);
313 flash_unmap (info, 0, offset, addr);
314 return retval;
315}
316
317
318/*-----------------------------------------------------------------------
Stefan Roese260421a2006-11-13 13:55:24 +0100319 * read a long word by picking the least significant byte of each maximum
wdenk5653fc32004-02-08 22:55:38 +0000320 * port size word. Swap for ppc format.
321 */
Haavard Skinnemoen30557932007-12-13 12:56:29 +0100322static ulong flash_read_long (flash_info_t * info, flash_sect_t sect,
323 uint offset)
wdenk5653fc32004-02-08 22:55:38 +0000324{
wdenkbf9e3b32004-02-12 00:47:09 +0000325 uchar *addr;
326 ulong retval;
wdenk5653fc32004-02-08 22:55:38 +0000327
wdenkbf9e3b32004-02-12 00:47:09 +0000328#ifdef DEBUG
329 int x;
330#endif
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100331 addr = flash_map (info, sect, offset);
wdenkbf9e3b32004-02-12 00:47:09 +0000332
333#ifdef DEBUG
334 debug ("long addr is at %p info->portwidth = %d\n", addr,
335 info->portwidth);
336 for (x = 0; x < 4 * info->portwidth; x++) {
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100337 debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x));
wdenkbf9e3b32004-02-12 00:47:09 +0000338 }
339#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200340#if defined(__LITTLE_ENDIAN) || defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100341 retval = ((flash_read8(addr) << 16) |
342 (flash_read8(addr + info->portwidth) << 24) |
343 (flash_read8(addr + 2 * info->portwidth)) |
344 (flash_read8(addr + 3 * info->portwidth) << 8));
wdenkbf9e3b32004-02-12 00:47:09 +0000345#else
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100346 retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) |
347 (flash_read8(addr + info->portwidth - 1) << 16) |
348 (flash_read8(addr + 4 * info->portwidth - 1) << 8) |
349 (flash_read8(addr + 3 * info->portwidth - 1)));
wdenkbf9e3b32004-02-12 00:47:09 +0000350#endif
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100351 flash_unmap(info, sect, offset, addr);
352
wdenkbf9e3b32004-02-12 00:47:09 +0000353 return retval;
wdenk5653fc32004-02-08 22:55:38 +0000354}
355
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200356/*
357 * Write a proper sized command to the correct address
358 */
Stefan Roesefa36ae72009-10-27 15:15:55 +0100359void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
360 uint offset, u32 cmd)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200361{
Stefan Roese79b4cda2006-02-28 15:29:58 +0100362
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100363 void *addr;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200364 cfiword_t cword;
365
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100366 addr = flash_map (info, sect, offset);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200367 flash_make_cmd (info, cmd, &cword);
368 switch (info->portwidth) {
369 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100370 debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd,
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200371 cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100372 flash_write8(cword.c, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200373 break;
374 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100375 debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr,
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200376 cmd, cword.w,
377 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100378 flash_write16(cword.w, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200379 break;
380 case FLASH_CFI_32BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100381 debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr,
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200382 cmd, cword.l,
383 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100384 flash_write32(cword.l, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200385 break;
386 case FLASH_CFI_64BIT:
387#ifdef DEBUG
388 {
389 char str[20];
390
391 print_longlong (str, cword.ll);
392
393 debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100394 addr, cmd, str,
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200395 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
396 }
397#endif
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100398 flash_write64(cword.ll, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200399 break;
400 }
401
402 /* Ensure all the instructions are fully finished */
403 sync();
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100404
405 flash_unmap(info, sect, offset, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200406}
407
408static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
409{
410 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START);
411 flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK);
412}
413
414/*-----------------------------------------------------------------------
415 */
416static int flash_isequal (flash_info_t * info, flash_sect_t sect,
417 uint offset, uchar cmd)
418{
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100419 void *addr;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200420 cfiword_t cword;
421 int retval;
422
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100423 addr = flash_map (info, sect, offset);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200424 flash_make_cmd (info, cmd, &cword);
425
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100426 debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200427 switch (info->portwidth) {
428 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100429 debug ("is= %x %x\n", flash_read8(addr), cword.c);
430 retval = (flash_read8(addr) == cword.c);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200431 break;
432 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100433 debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w);
434 retval = (flash_read16(addr) == cword.w);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200435 break;
436 case FLASH_CFI_32BIT:
Andrew Klossner52514692008-08-21 07:12:26 -0700437 debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l);
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100438 retval = (flash_read32(addr) == cword.l);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200439 break;
440 case FLASH_CFI_64BIT:
441#ifdef DEBUG
442 {
443 char str1[20];
444 char str2[20];
445
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100446 print_longlong (str1, flash_read64(addr));
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200447 print_longlong (str2, cword.ll);
448 debug ("is= %s %s\n", str1, str2);
449 }
450#endif
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100451 retval = (flash_read64(addr) == cword.ll);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200452 break;
453 default:
454 retval = 0;
455 break;
456 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100457 flash_unmap(info, sect, offset, addr);
458
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200459 return retval;
460}
461
462/*-----------------------------------------------------------------------
463 */
464static int flash_isset (flash_info_t * info, flash_sect_t sect,
465 uint offset, uchar cmd)
466{
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100467 void *addr;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200468 cfiword_t cword;
469 int retval;
470
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100471 addr = flash_map (info, sect, offset);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200472 flash_make_cmd (info, cmd, &cword);
473 switch (info->portwidth) {
474 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100475 retval = ((flash_read8(addr) & cword.c) == cword.c);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200476 break;
477 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100478 retval = ((flash_read16(addr) & cword.w) == cword.w);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200479 break;
480 case FLASH_CFI_32BIT:
Stefan Roese47cc23c2008-01-02 14:05:37 +0100481 retval = ((flash_read32(addr) & cword.l) == cword.l);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200482 break;
483 case FLASH_CFI_64BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100484 retval = ((flash_read64(addr) & cword.ll) == cword.ll);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200485 break;
486 default:
487 retval = 0;
488 break;
489 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100490 flash_unmap(info, sect, offset, addr);
491
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200492 return retval;
493}
494
495/*-----------------------------------------------------------------------
496 */
497static int flash_toggle (flash_info_t * info, flash_sect_t sect,
498 uint offset, uchar cmd)
499{
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100500 void *addr;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200501 cfiword_t cword;
502 int retval;
503
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100504 addr = flash_map (info, sect, offset);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200505 flash_make_cmd (info, cmd, &cword);
506 switch (info->portwidth) {
507 case FLASH_CFI_8BIT:
Stefan Roesefb8c0612008-06-16 10:40:02 +0200508 retval = flash_read8(addr) != flash_read8(addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200509 break;
510 case FLASH_CFI_16BIT:
Stefan Roesefb8c0612008-06-16 10:40:02 +0200511 retval = flash_read16(addr) != flash_read16(addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200512 break;
513 case FLASH_CFI_32BIT:
Stefan Roesefb8c0612008-06-16 10:40:02 +0200514 retval = flash_read32(addr) != flash_read32(addr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200515 break;
516 case FLASH_CFI_64BIT:
Wolfgang Denk9abda6b2008-10-31 01:12:28 +0100517 retval = ( (flash_read32( addr ) != flash_read32( addr )) ||
518 (flash_read32(addr+4) != flash_read32(addr+4)) );
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200519 break;
520 default:
521 retval = 0;
522 break;
523 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100524 flash_unmap(info, sect, offset, addr);
525
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200526 return retval;
527}
528
529/*
530 * flash_is_busy - check to see if the flash is busy
531 *
532 * This routine checks the status of the chip and returns true if the
533 * chip is busy.
534 */
535static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
536{
537 int retval;
538
539 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400540 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200541 case CFI_CMDSET_INTEL_STANDARD:
542 case CFI_CMDSET_INTEL_EXTENDED:
543 retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
544 break;
545 case CFI_CMDSET_AMD_STANDARD:
546 case CFI_CMDSET_AMD_EXTENDED:
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100547#ifdef CONFIG_FLASH_CFI_LEGACY
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200548 case CFI_CMDSET_AMD_LEGACY:
549#endif
550 retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
551 break;
552 default:
553 retval = 0;
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100554 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200555 debug ("flash_is_busy: %d\n", retval);
556 return retval;
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100557}
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200558
559/*-----------------------------------------------------------------------
560 * wait for XSR.7 to be set. Time out with an error if it does not.
561 * This routine does not set the flash to read-array mode.
562 */
563static int flash_status_check (flash_info_t * info, flash_sect_t sector,
564 ulong tout, char *prompt)
565{
566 ulong start;
567
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200568#if CONFIG_SYS_HZ != 1000
Renato Andreolac40c94a2010-03-24 23:00:47 +0800569 if ((ulong)CONFIG_SYS_HZ > 100000)
570 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
571 else
572 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200573#endif
574
575 /* Wait for command completion */
Graeme Russe110c4f2011-07-15 02:18:56 +0000576#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou22d6c8f2010-04-01 11:15:05 +0800577 reset_timer();
Graeme Russe110c4f2011-07-15 02:18:56 +0000578#endif
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200579 start = get_timer (0);
580 while (flash_is_busy (info, sector)) {
581 if (get_timer (start) > tout) {
582 printf ("Flash %s timeout at address %lx data %lx\n",
583 prompt, info->start[sector],
584 flash_read_long (info, sector, 0));
585 flash_write_cmd (info, sector, 0, info->cmd_reset);
Aaron Williamsa90b9572011-04-12 00:59:04 -0700586 udelay(1);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200587 return ERR_TIMOUT;
588 }
589 udelay (1); /* also triggers watchdog */
590 }
591 return ERR_OK;
592}
593
594/*-----------------------------------------------------------------------
595 * Wait for XSR.7 to be set, if it times out print an error, otherwise
596 * do a full status check.
597 *
598 * This routine sets the flash to read-array mode.
599 */
600static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
601 ulong tout, char *prompt)
602{
603 int retcode;
604
605 retcode = flash_status_check (info, sector, tout, prompt);
606 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400607 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200608 case CFI_CMDSET_INTEL_EXTENDED:
609 case CFI_CMDSET_INTEL_STANDARD:
Ed Swarthout0d01f662008-10-09 01:26:36 -0500610 if ((retcode != ERR_OK)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200611 && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
612 retcode = ERR_INVAL;
613 printf ("Flash %s error at address %lx\n", prompt,
614 info->start[sector]);
615 if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS |
616 FLASH_STATUS_PSLBS)) {
617 puts ("Command Sequence Error.\n");
618 } else if (flash_isset (info, sector, 0,
619 FLASH_STATUS_ECLBS)) {
620 puts ("Block Erase Error.\n");
621 retcode = ERR_NOT_ERASED;
622 } else if (flash_isset (info, sector, 0,
623 FLASH_STATUS_PSLBS)) {
624 puts ("Locking Error\n");
625 }
626 if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
627 puts ("Block locked.\n");
628 retcode = ERR_PROTECTED;
629 }
630 if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
631 puts ("Vpp Low Error.\n");
632 }
633 flash_write_cmd (info, sector, 0, info->cmd_reset);
Aaron Williamsa90b9572011-04-12 00:59:04 -0700634 udelay(1);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200635 break;
636 default:
637 break;
638 }
639 return retcode;
640}
641
Thomas Choue5720822010-03-26 08:17:00 +0800642static int use_flash_status_poll(flash_info_t *info)
643{
644#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
645 if (info->vendor == CFI_CMDSET_AMD_EXTENDED ||
646 info->vendor == CFI_CMDSET_AMD_STANDARD)
647 return 1;
648#endif
649 return 0;
650}
651
652static int flash_status_poll(flash_info_t *info, void *src, void *dst,
653 ulong tout, char *prompt)
654{
655#ifdef CONFIG_SYS_CFI_FLASH_STATUS_POLL
656 ulong start;
657 int ready;
658
659#if CONFIG_SYS_HZ != 1000
660 if ((ulong)CONFIG_SYS_HZ > 100000)
661 tout *= (ulong)CONFIG_SYS_HZ / 1000; /* for a big HZ, avoid overflow */
662 else
663 tout = DIV_ROUND_UP(tout * (ulong)CONFIG_SYS_HZ, 1000);
664#endif
665
666 /* Wait for command completion */
Graeme Russe110c4f2011-07-15 02:18:56 +0000667#ifdef CONFIG_SYS_LOW_RES_TIMER
Thomas Chou22d6c8f2010-04-01 11:15:05 +0800668 reset_timer();
Graeme Russe110c4f2011-07-15 02:18:56 +0000669#endif
Thomas Choue5720822010-03-26 08:17:00 +0800670 start = get_timer(0);
671 while (1) {
672 switch (info->portwidth) {
673 case FLASH_CFI_8BIT:
674 ready = flash_read8(dst) == flash_read8(src);
675 break;
676 case FLASH_CFI_16BIT:
677 ready = flash_read16(dst) == flash_read16(src);
678 break;
679 case FLASH_CFI_32BIT:
680 ready = flash_read32(dst) == flash_read32(src);
681 break;
682 case FLASH_CFI_64BIT:
683 ready = flash_read64(dst) == flash_read64(src);
684 break;
685 default:
686 ready = 0;
687 break;
688 }
689 if (ready)
690 break;
691 if (get_timer(start) > tout) {
692 printf("Flash %s timeout at address %lx data %lx\n",
693 prompt, (ulong)dst, (ulong)flash_read8(dst));
694 return ERR_TIMOUT;
695 }
696 udelay(1); /* also triggers watchdog */
697 }
698#endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */
699 return ERR_OK;
700}
701
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200702/*-----------------------------------------------------------------------
703 */
704static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
705{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200706#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200707 unsigned short w;
708 unsigned int l;
709 unsigned long long ll;
710#endif
711
712 switch (info->portwidth) {
713 case FLASH_CFI_8BIT:
714 cword->c = c;
715 break;
716 case FLASH_CFI_16BIT:
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200717#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200718 w = c;
719 w <<= 8;
720 cword->w = (cword->w >> 8) | w;
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100721#else
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200722 cword->w = (cword->w << 8) | c;
Michael Schwingen81b20cc2007-12-07 23:35:02 +0100723#endif
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200724 break;
725 case FLASH_CFI_32BIT:
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200726#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200727 l = c;
728 l <<= 24;
729 cword->l = (cword->l >> 8) | l;
730#else
731 cword->l = (cword->l << 8) | c;
Stefan Roese2662b402006-04-01 13:41:03 +0200732#endif
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200733 break;
734 case FLASH_CFI_64BIT:
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200735#if defined(__LITTLE_ENDIAN) && !defined(CONFIG_SYS_WRITE_SWAPPED_DATA)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200736 ll = c;
737 ll <<= 56;
738 cword->ll = (cword->ll >> 8) | ll;
739#else
740 cword->ll = (cword->ll << 8) | c;
741#endif
742 break;
wdenk5653fc32004-02-08 22:55:38 +0000743 }
wdenk5653fc32004-02-08 22:55:38 +0000744}
745
Jens Gehrlein0f8e8512008-12-16 17:25:55 +0100746/*
747 * Loop through the sector table starting from the previously found sector.
748 * Searches forwards or backwards, dependent on the passed address.
wdenk5653fc32004-02-08 22:55:38 +0000749 */
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200750static flash_sect_t find_sector (flash_info_t * info, ulong addr)
wdenk7680c142005-05-16 15:23:22 +0000751{
Jens Gehrlein0f8e8512008-12-16 17:25:55 +0100752 static flash_sect_t saved_sector = 0; /* previously found sector */
Martin Krauseaf567302011-03-21 18:07:56 +0100753 static flash_info_t *saved_info = 0; /* previously used flash bank */
Jens Gehrlein0f8e8512008-12-16 17:25:55 +0100754 flash_sect_t sector = saved_sector;
wdenk7680c142005-05-16 15:23:22 +0000755
Martin Krauseaf567302011-03-21 18:07:56 +0100756 if ((info != saved_info) || (sector >= info->sector_count))
757 sector = 0;
758
Jens Gehrlein0f8e8512008-12-16 17:25:55 +0100759 while ((info->start[sector] < addr)
760 && (sector < info->sector_count - 1))
761 sector++;
762 while ((info->start[sector] > addr) && (sector > 0))
763 /*
764 * also decrements the sector in case of an overshot
765 * in the first loop
766 */
767 sector--;
768
769 saved_sector = sector;
Martin Krauseaf567302011-03-21 18:07:56 +0100770 saved_info = info;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200771 return sector;
wdenk7680c142005-05-16 15:23:22 +0000772}
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200773
774/*-----------------------------------------------------------------------
775 */
776static int flash_write_cfiword (flash_info_t * info, ulong dest,
777 cfiword_t cword)
778{
Becky Bruce09ce9922009-02-02 16:34:51 -0600779 void *dstaddr = (void *)dest;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200780 int flag;
Jens Gehrleina7292872008-12-16 17:25:54 +0100781 flash_sect_t sect = 0;
782 char sect_found = 0;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200783
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200784 /* Check if Flash is (sufficiently) erased */
785 switch (info->portwidth) {
786 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100787 flag = ((flash_read8(dstaddr) & cword.c) == cword.c);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200788 break;
789 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100790 flag = ((flash_read16(dstaddr) & cword.w) == cword.w);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200791 break;
792 case FLASH_CFI_32BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100793 flag = ((flash_read32(dstaddr) & cword.l) == cword.l);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200794 break;
795 case FLASH_CFI_64BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100796 flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200797 break;
798 default:
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100799 flag = 0;
800 break;
801 }
Becky Bruce09ce9922009-02-02 16:34:51 -0600802 if (!flag)
Stefan Roese0dc80e22007-12-27 07:50:54 +0100803 return ERR_NOT_ERASED;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200804
805 /* Disable interrupts which might cause a timeout here */
806 flag = disable_interrupts ();
807
808 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400809 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200810 case CFI_CMDSET_INTEL_EXTENDED:
811 case CFI_CMDSET_INTEL_STANDARD:
812 flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
813 flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
814 break;
815 case CFI_CMDSET_AMD_EXTENDED:
816 case CFI_CMDSET_AMD_STANDARD:
Ed Swarthout0d01f662008-10-09 01:26:36 -0500817 sect = find_sector(info, dest);
818 flash_unlock_seq (info, sect);
819 flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_WRITE);
Jens Gehrleina7292872008-12-16 17:25:54 +0100820 sect_found = 1;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200821 break;
Po-Yu Chuangb4db4a72009-07-10 18:03:57 +0800822#ifdef CONFIG_FLASH_CFI_LEGACY
823 case CFI_CMDSET_AMD_LEGACY:
824 sect = find_sector(info, dest);
825 flash_unlock_seq (info, 0);
826 flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
827 sect_found = 1;
828 break;
829#endif
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200830 }
831
832 switch (info->portwidth) {
833 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100834 flash_write8(cword.c, dstaddr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200835 break;
836 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100837 flash_write16(cword.w, dstaddr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200838 break;
839 case FLASH_CFI_32BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100840 flash_write32(cword.l, dstaddr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200841 break;
842 case FLASH_CFI_64BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100843 flash_write64(cword.ll, dstaddr);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200844 break;
845 }
846
847 /* re-enable interrupts if necessary */
848 if (flag)
849 enable_interrupts ();
850
Jens Gehrleina7292872008-12-16 17:25:54 +0100851 if (!sect_found)
852 sect = find_sector (info, dest);
853
Thomas Choue5720822010-03-26 08:17:00 +0800854 if (use_flash_status_poll(info))
855 return flash_status_poll(info, &cword, dstaddr,
856 info->write_tout, "write");
857 else
858 return flash_full_status_check(info, sect,
859 info->write_tout, "write");
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200860}
861
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200862#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200863
864static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
865 int len)
866{
867 flash_sect_t sector;
868 int cnt;
869 int retcode;
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100870 void *src = cp;
Stefan Roeseec21d5c2009-02-05 11:25:57 +0100871 void *dst = (void *)dest;
Stefan Roese0dc80e22007-12-27 07:50:54 +0100872 void *dst2 = dst;
873 int flag = 0;
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200874 uint offset = 0;
875 unsigned int shift;
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400876 uchar write_cmd;
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100877
Stefan Roese0dc80e22007-12-27 07:50:54 +0100878 switch (info->portwidth) {
879 case FLASH_CFI_8BIT:
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200880 shift = 0;
Stefan Roese0dc80e22007-12-27 07:50:54 +0100881 break;
882 case FLASH_CFI_16BIT:
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200883 shift = 1;
Stefan Roese0dc80e22007-12-27 07:50:54 +0100884 break;
885 case FLASH_CFI_32BIT:
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200886 shift = 2;
Stefan Roese0dc80e22007-12-27 07:50:54 +0100887 break;
888 case FLASH_CFI_64BIT:
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200889 shift = 3;
Stefan Roese0dc80e22007-12-27 07:50:54 +0100890 break;
891 default:
892 retcode = ERR_INVAL;
893 goto out_unmap;
894 }
895
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200896 cnt = len >> shift;
897
Stefan Roese0dc80e22007-12-27 07:50:54 +0100898 while ((cnt-- > 0) && (flag == 0)) {
899 switch (info->portwidth) {
900 case FLASH_CFI_8BIT:
901 flag = ((flash_read8(dst2) & flash_read8(src)) ==
902 flash_read8(src));
903 src += 1, dst2 += 1;
904 break;
905 case FLASH_CFI_16BIT:
906 flag = ((flash_read16(dst2) & flash_read16(src)) ==
907 flash_read16(src));
908 src += 2, dst2 += 2;
909 break;
910 case FLASH_CFI_32BIT:
911 flag = ((flash_read32(dst2) & flash_read32(src)) ==
912 flash_read32(src));
913 src += 4, dst2 += 4;
914 break;
915 case FLASH_CFI_64BIT:
916 flag = ((flash_read64(dst2) & flash_read64(src)) ==
917 flash_read64(src));
918 src += 8, dst2 += 8;
919 break;
920 }
921 }
922 if (!flag) {
923 retcode = ERR_NOT_ERASED;
924 goto out_unmap;
925 }
926
927 src = cp;
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100928 sector = find_sector (info, dest);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200929
930 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400931 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200932 case CFI_CMDSET_INTEL_STANDARD:
933 case CFI_CMDSET_INTEL_EXTENDED:
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400934 write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ?
935 FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200936 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +0400937 flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS);
938 flash_write_cmd (info, sector, 0, write_cmd);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200939 retcode = flash_status_check (info, sector,
940 info->buffer_write_tout,
941 "write to buffer");
942 if (retcode == ERR_OK) {
943 /* reduce the number of loops by the width of
944 * the port */
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200945 cnt = len >> shift;
Vasiliy Leoenenko93c56f22008-05-07 21:24:44 +0400946 flash_write_cmd (info, sector, 0, cnt - 1);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200947 while (cnt-- > 0) {
948 switch (info->portwidth) {
949 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100950 flash_write8(flash_read8(src), dst);
951 src += 1, dst += 1;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200952 break;
953 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100954 flash_write16(flash_read16(src), dst);
955 src += 2, dst += 2;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200956 break;
957 case FLASH_CFI_32BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100958 flash_write32(flash_read32(src), dst);
959 src += 4, dst += 4;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200960 break;
961 case FLASH_CFI_64BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100962 flash_write64(flash_read64(src), dst);
963 src += 8, dst += 8;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200964 break;
965 default:
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100966 retcode = ERR_INVAL;
967 goto out_unmap;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200968 }
969 }
970 flash_write_cmd (info, sector, 0,
971 FLASH_CMD_WRITE_BUFFER_CONFIRM);
972 retcode = flash_full_status_check (
973 info, sector, info->buffer_write_tout,
974 "buffer write");
975 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +0100976
977 break;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200978
979 case CFI_CMDSET_AMD_STANDARD:
980 case CFI_CMDSET_AMD_EXTENDED:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200981 flash_unlock_seq(info,0);
Guennadi Liakhovetski96ef8312008-04-03 13:36:02 +0200982
983#ifdef CONFIG_FLASH_SPANSION_S29WS_N
984 offset = ((unsigned long)dst - info->start[sector]) >> shift;
985#endif
986 flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER);
987 cnt = len >> shift;
John Schmoller7dedefd2009-08-12 10:55:47 -0500988 flash_write_cmd(info, sector, offset, cnt - 1);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200989
990 switch (info->portwidth) {
991 case FLASH_CFI_8BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100992 while (cnt-- > 0) {
993 flash_write8(flash_read8(src), dst);
994 src += 1, dst += 1;
995 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +0200996 break;
997 case FLASH_CFI_16BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +0100998 while (cnt-- > 0) {
999 flash_write16(flash_read16(src), dst);
1000 src += 2, dst += 2;
1001 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001002 break;
1003 case FLASH_CFI_32BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +01001004 while (cnt-- > 0) {
1005 flash_write32(flash_read32(src), dst);
1006 src += 4, dst += 4;
1007 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001008 break;
1009 case FLASH_CFI_64BIT:
Haavard Skinnemoencdbaefb2007-12-13 12:56:32 +01001010 while (cnt-- > 0) {
1011 flash_write64(flash_read64(src), dst);
1012 src += 8, dst += 8;
1013 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001014 break;
1015 default:
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001016 retcode = ERR_INVAL;
1017 goto out_unmap;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001018 }
1019
1020 flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
Thomas Choue5720822010-03-26 08:17:00 +08001021 if (use_flash_status_poll(info))
1022 retcode = flash_status_poll(info, src - (1 << shift),
1023 dst - (1 << shift),
1024 info->buffer_write_tout,
1025 "buffer write");
1026 else
1027 retcode = flash_full_status_check(info, sector,
1028 info->buffer_write_tout,
1029 "buffer write");
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001030 break;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001031
1032 default:
1033 debug ("Unknown Command Set\n");
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001034 retcode = ERR_INVAL;
1035 break;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001036 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001037
1038out_unmap:
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001039 return retcode;
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001040}
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001041#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001042
wdenk7680c142005-05-16 15:23:22 +00001043
1044/*-----------------------------------------------------------------------
1045 */
wdenkbf9e3b32004-02-12 00:47:09 +00001046int flash_erase (flash_info_t * info, int s_first, int s_last)
wdenk5653fc32004-02-08 22:55:38 +00001047{
1048 int rcode = 0;
1049 int prot;
1050 flash_sect_t sect;
Thomas Choue5720822010-03-26 08:17:00 +08001051 int st;
wdenk5653fc32004-02-08 22:55:38 +00001052
wdenkbf9e3b32004-02-12 00:47:09 +00001053 if (info->flash_id != FLASH_MAN_CFI) {
wdenk4b9206e2004-03-23 22:14:11 +00001054 puts ("Can't erase unknown flash type - aborted\n");
wdenk5653fc32004-02-08 22:55:38 +00001055 return 1;
1056 }
1057 if ((s_first < 0) || (s_first > s_last)) {
wdenk4b9206e2004-03-23 22:14:11 +00001058 puts ("- no sectors to erase\n");
wdenk5653fc32004-02-08 22:55:38 +00001059 return 1;
1060 }
1061
1062 prot = 0;
wdenkbf9e3b32004-02-12 00:47:09 +00001063 for (sect = s_first; sect <= s_last; ++sect) {
wdenk5653fc32004-02-08 22:55:38 +00001064 if (info->protect[sect]) {
1065 prot++;
1066 }
1067 }
1068 if (prot) {
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001069 printf ("- Warning: %d protected sectors will not be erased!\n",
1070 prot);
Piotr Ziecik6ea808e2008-11-17 15:49:32 +01001071 } else if (flash_verbose) {
wdenk4b9206e2004-03-23 22:14:11 +00001072 putc ('\n');
wdenk5653fc32004-02-08 22:55:38 +00001073 }
1074
1075
wdenkbf9e3b32004-02-12 00:47:09 +00001076 for (sect = s_first; sect <= s_last; sect++) {
wdenk5653fc32004-02-08 22:55:38 +00001077 if (info->protect[sect] == 0) { /* not protected */
wdenkbf9e3b32004-02-12 00:47:09 +00001078 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04001079 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk5653fc32004-02-08 22:55:38 +00001080 case CFI_CMDSET_INTEL_STANDARD:
1081 case CFI_CMDSET_INTEL_EXTENDED:
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001082 flash_write_cmd (info, sect, 0,
1083 FLASH_CMD_CLEAR_STATUS);
1084 flash_write_cmd (info, sect, 0,
1085 FLASH_CMD_BLOCK_ERASE);
1086 flash_write_cmd (info, sect, 0,
1087 FLASH_CMD_ERASE_CONFIRM);
wdenk5653fc32004-02-08 22:55:38 +00001088 break;
1089 case CFI_CMDSET_AMD_STANDARD:
1090 case CFI_CMDSET_AMD_EXTENDED:
wdenkbf9e3b32004-02-12 00:47:09 +00001091 flash_unlock_seq (info, sect);
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001092 flash_write_cmd (info, sect,
1093 info->addr_unlock1,
1094 AMD_CMD_ERASE_START);
wdenkbf9e3b32004-02-12 00:47:09 +00001095 flash_unlock_seq (info, sect);
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001096 flash_write_cmd (info, sect, 0,
1097 AMD_CMD_ERASE_SECTOR);
wdenk5653fc32004-02-08 22:55:38 +00001098 break;
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001099#ifdef CONFIG_FLASH_CFI_LEGACY
1100 case CFI_CMDSET_AMD_LEGACY:
1101 flash_unlock_seq (info, 0);
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001102 flash_write_cmd (info, 0, info->addr_unlock1,
1103 AMD_CMD_ERASE_START);
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001104 flash_unlock_seq (info, 0);
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001105 flash_write_cmd (info, sect, 0,
1106 AMD_CMD_ERASE_SECTOR);
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001107 break;
1108#endif
wdenk5653fc32004-02-08 22:55:38 +00001109 default:
wdenkbf9e3b32004-02-12 00:47:09 +00001110 debug ("Unkown flash vendor %d\n",
1111 info->vendor);
wdenk5653fc32004-02-08 22:55:38 +00001112 break;
1113 }
1114
Thomas Choue5720822010-03-26 08:17:00 +08001115 if (use_flash_status_poll(info)) {
1116 cfiword_t cword = (cfiword_t)0xffffffffffffffffULL;
1117 void *dest;
1118 dest = flash_map(info, sect, 0);
1119 st = flash_status_poll(info, &cword, dest,
1120 info->erase_blk_tout, "erase");
1121 flash_unmap(info, sect, 0, dest);
1122 } else
1123 st = flash_full_status_check(info, sect,
1124 info->erase_blk_tout,
1125 "erase");
1126 if (st)
wdenk5653fc32004-02-08 22:55:38 +00001127 rcode = 1;
Thomas Choue5720822010-03-26 08:17:00 +08001128 else if (flash_verbose)
wdenk4b9206e2004-03-23 22:14:11 +00001129 putc ('.');
wdenk5653fc32004-02-08 22:55:38 +00001130 }
1131 }
Piotr Ziecik6ea808e2008-11-17 15:49:32 +01001132
1133 if (flash_verbose)
1134 puts (" done\n");
1135
wdenk5653fc32004-02-08 22:55:38 +00001136 return rcode;
1137}
1138
Stefan Roese70084df2010-08-13 09:36:36 +02001139#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
1140static int sector_erased(flash_info_t *info, int i)
1141{
1142 int k;
1143 int size;
Stefan Roese4d2ca9d2010-10-25 18:31:39 +02001144 u32 *flash;
Stefan Roese70084df2010-08-13 09:36:36 +02001145
1146 /*
1147 * Check if whole sector is erased
1148 */
1149 size = flash_sector_size(info, i);
Stefan Roese4d2ca9d2010-10-25 18:31:39 +02001150 flash = (u32 *)info->start[i];
Stefan Roese70084df2010-08-13 09:36:36 +02001151 /* divide by 4 for longword access */
1152 size = size >> 2;
1153
1154 for (k = 0; k < size; k++) {
Stefan Roese4d2ca9d2010-10-25 18:31:39 +02001155 if (flash_read32(flash++) != 0xffffffff)
Stefan Roese70084df2010-08-13 09:36:36 +02001156 return 0; /* not erased */
1157 }
1158
1159 return 1; /* erased */
1160}
1161#endif /* CONFIG_SYS_FLASH_EMPTY_INFO */
1162
wdenkbf9e3b32004-02-12 00:47:09 +00001163void flash_print_info (flash_info_t * info)
wdenk5653fc32004-02-08 22:55:38 +00001164{
1165 int i;
1166
1167 if (info->flash_id != FLASH_MAN_CFI) {
wdenk4b9206e2004-03-23 22:14:11 +00001168 puts ("missing or unknown FLASH type\n");
wdenk5653fc32004-02-08 22:55:38 +00001169 return;
1170 }
1171
Peter Tysereddf52b2010-12-28 18:12:05 -06001172 printf ("%s flash (%d x %d)",
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001173 info->name,
wdenkbf9e3b32004-02-12 00:47:09 +00001174 (info->portwidth << 3), (info->chipwidth << 3));
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001175 if (info->size < 1024*1024)
1176 printf (" Size: %ld kB in %d Sectors\n",
1177 info->size >> 10, info->sector_count);
1178 else
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001179 printf (" Size: %ld MB in %d Sectors\n",
1180 info->size >> 20, info->sector_count);
Stefan Roese260421a2006-11-13 13:55:24 +01001181 printf (" ");
1182 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04001183 case CFI_CMDSET_INTEL_PROG_REGIONS:
1184 printf ("Intel Prog Regions");
1185 break;
Stefan Roese260421a2006-11-13 13:55:24 +01001186 case CFI_CMDSET_INTEL_STANDARD:
1187 printf ("Intel Standard");
1188 break;
1189 case CFI_CMDSET_INTEL_EXTENDED:
1190 printf ("Intel Extended");
1191 break;
1192 case CFI_CMDSET_AMD_STANDARD:
1193 printf ("AMD Standard");
1194 break;
1195 case CFI_CMDSET_AMD_EXTENDED:
1196 printf ("AMD Extended");
1197 break;
Michael Schwingen81b20cc2007-12-07 23:35:02 +01001198#ifdef CONFIG_FLASH_CFI_LEGACY
1199 case CFI_CMDSET_AMD_LEGACY:
1200 printf ("AMD Legacy");
1201 break;
1202#endif
Stefan Roese260421a2006-11-13 13:55:24 +01001203 default:
1204 printf ("Unknown (%d)", info->vendor);
1205 break;
1206 }
Philippe De Muyterd77c7ac2010-08-10 16:54:52 +02001207 printf (" command set, Manufacturer ID: 0x%02X, Device ID: 0x",
1208 info->manufacturer_id);
1209 printf (info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1210 info->device_id);
Heiko Schocher5b448ad2011-04-11 14:16:19 +02001211 if ((info->device_id & 0xff) == 0x7E) {
1212 printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
1213 info->device_id2);
Stefan Roese260421a2006-11-13 13:55:24 +01001214 }
1215 printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
wdenk028ab6b2004-02-23 23:54:43 +00001216 info->erase_blk_tout,
Stefan Roese260421a2006-11-13 13:55:24 +01001217 info->write_tout);
1218 if (info->buffer_size > 1) {
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001219 printf (" Buffer write timeout: %ld ms, "
1220 "buffer size: %d bytes\n",
wdenk028ab6b2004-02-23 23:54:43 +00001221 info->buffer_write_tout,
1222 info->buffer_size);
Stefan Roese260421a2006-11-13 13:55:24 +01001223 }
wdenk5653fc32004-02-08 22:55:38 +00001224
Stefan Roese260421a2006-11-13 13:55:24 +01001225 puts ("\n Sector Start Addresses:");
wdenkbf9e3b32004-02-12 00:47:09 +00001226 for (i = 0; i < info->sector_count; ++i) {
Kim Phillips2e973942010-07-26 18:35:39 -05001227 if (ctrlc())
Stefan Roese70084df2010-08-13 09:36:36 +02001228 break;
Stefan Roese260421a2006-11-13 13:55:24 +01001229 if ((i % 5) == 0)
Stefan Roese70084df2010-08-13 09:36:36 +02001230 putc('\n');
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001231#ifdef CONFIG_SYS_FLASH_EMPTY_INFO
wdenk5653fc32004-02-08 22:55:38 +00001232 /* print empty and read-only info */
Stefan Roese260421a2006-11-13 13:55:24 +01001233 printf (" %08lX %c %s ",
wdenk5653fc32004-02-08 22:55:38 +00001234 info->start[i],
Stefan Roese70084df2010-08-13 09:36:36 +02001235 sector_erased(info, i) ? 'E' : ' ',
Stefan Roese260421a2006-11-13 13:55:24 +01001236 info->protect[i] ? "RO" : " ");
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001237#else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */
Stefan Roese260421a2006-11-13 13:55:24 +01001238 printf (" %08lX %s ",
1239 info->start[i],
1240 info->protect[i] ? "RO" : " ");
wdenk5653fc32004-02-08 22:55:38 +00001241#endif
1242 }
wdenk4b9206e2004-03-23 22:14:11 +00001243 putc ('\n');
wdenk5653fc32004-02-08 22:55:38 +00001244 return;
1245}
1246
1247/*-----------------------------------------------------------------------
Jerry Van Baren9a042e92008-03-08 13:48:01 -05001248 * This is used in a few places in write_buf() to show programming
1249 * progress. Making it a function is nasty because it needs to do side
1250 * effect updates to digit and dots. Repeated code is nasty too, so
1251 * we define it once here.
1252 */
Stefan Roesef0105722008-03-19 07:09:26 +01001253#ifdef CONFIG_FLASH_SHOW_PROGRESS
1254#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \
Piotr Ziecik6ea808e2008-11-17 15:49:32 +01001255 if (flash_verbose) { \
1256 dots -= dots_sub; \
1257 if ((scale > 0) && (dots <= 0)) { \
1258 if ((digit % 5) == 0) \
1259 printf ("%d", digit / 5); \
1260 else \
1261 putc ('.'); \
1262 digit--; \
1263 dots += scale; \
1264 } \
Jerry Van Baren9a042e92008-03-08 13:48:01 -05001265 }
Stefan Roesef0105722008-03-19 07:09:26 +01001266#else
1267#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub)
1268#endif
Jerry Van Baren9a042e92008-03-08 13:48:01 -05001269
1270/*-----------------------------------------------------------------------
wdenk5653fc32004-02-08 22:55:38 +00001271 * Copy memory to flash, returns:
1272 * 0 - OK
1273 * 1 - write timeout
1274 * 2 - Flash not erased
1275 */
wdenkbf9e3b32004-02-12 00:47:09 +00001276int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
wdenk5653fc32004-02-08 22:55:38 +00001277{
1278 ulong wp;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001279 uchar *p;
wdenk5653fc32004-02-08 22:55:38 +00001280 int aln;
1281 cfiword_t cword;
1282 int i, rc;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001283#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
wdenkbf9e3b32004-02-12 00:47:09 +00001284 int buffered_size;
1285#endif
Jerry Van Baren9a042e92008-03-08 13:48:01 -05001286#ifdef CONFIG_FLASH_SHOW_PROGRESS
1287 int digit = CONFIG_FLASH_SHOW_PROGRESS;
1288 int scale = 0;
1289 int dots = 0;
1290
1291 /*
1292 * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes.
1293 */
1294 if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) {
1295 scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) /
1296 CONFIG_FLASH_SHOW_PROGRESS);
1297 }
1298#endif
1299
wdenkbf9e3b32004-02-12 00:47:09 +00001300 /* get lower aligned address */
wdenk5653fc32004-02-08 22:55:38 +00001301 wp = (addr & ~(info->portwidth - 1));
1302
1303 /* handle unaligned start */
wdenkbf9e3b32004-02-12 00:47:09 +00001304 if ((aln = addr - wp) != 0) {
wdenk5653fc32004-02-08 22:55:38 +00001305 cword.l = 0;
Becky Bruce09ce9922009-02-02 16:34:51 -06001306 p = (uchar *)wp;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001307 for (i = 0; i < aln; ++i)
1308 flash_add_byte (info, &cword, flash_read8(p + i));
wdenk5653fc32004-02-08 22:55:38 +00001309
wdenkbf9e3b32004-02-12 00:47:09 +00001310 for (; (i < info->portwidth) && (cnt > 0); i++) {
1311 flash_add_byte (info, &cword, *src++);
wdenk5653fc32004-02-08 22:55:38 +00001312 cnt--;
wdenk5653fc32004-02-08 22:55:38 +00001313 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001314 for (; (cnt == 0) && (i < info->portwidth); ++i)
1315 flash_add_byte (info, &cword, flash_read8(p + i));
1316
1317 rc = flash_write_cfiword (info, wp, cword);
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001318 if (rc != 0)
wdenk5653fc32004-02-08 22:55:38 +00001319 return rc;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001320
1321 wp += i;
Stefan Roesef0105722008-03-19 07:09:26 +01001322 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
wdenk5653fc32004-02-08 22:55:38 +00001323 }
1324
wdenkbf9e3b32004-02-12 00:47:09 +00001325 /* handle the aligned part */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001326#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
wdenkbf9e3b32004-02-12 00:47:09 +00001327 buffered_size = (info->portwidth / info->chipwidth);
1328 buffered_size *= info->buffer_size;
1329 while (cnt >= info->portwidth) {
Stefan Roese79b4cda2006-02-28 15:29:58 +01001330 /* prohibit buffer write when buffer_size is 1 */
1331 if (info->buffer_size == 1) {
1332 cword.l = 0;
1333 for (i = 0; i < info->portwidth; i++)
1334 flash_add_byte (info, &cword, *src++);
1335 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
1336 return rc;
1337 wp += info->portwidth;
1338 cnt -= info->portwidth;
1339 continue;
1340 }
1341
1342 /* write buffer until next buffered_size aligned boundary */
1343 i = buffered_size - (wp % buffered_size);
1344 if (i > cnt)
1345 i = cnt;
wdenkbf9e3b32004-02-12 00:47:09 +00001346 if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
wdenk5653fc32004-02-08 22:55:38 +00001347 return rc;
Wolfgang Denk8d4ba3d2005-08-12 22:35:59 +02001348 i -= i & (info->portwidth - 1);
wdenk5653fc32004-02-08 22:55:38 +00001349 wp += i;
1350 src += i;
wdenkbf9e3b32004-02-12 00:47:09 +00001351 cnt -= i;
Stefan Roesef0105722008-03-19 07:09:26 +01001352 FLASH_SHOW_PROGRESS(scale, dots, digit, i);
wdenk5653fc32004-02-08 22:55:38 +00001353 }
1354#else
wdenkbf9e3b32004-02-12 00:47:09 +00001355 while (cnt >= info->portwidth) {
wdenk5653fc32004-02-08 22:55:38 +00001356 cword.l = 0;
wdenkbf9e3b32004-02-12 00:47:09 +00001357 for (i = 0; i < info->portwidth; i++) {
1358 flash_add_byte (info, &cword, *src++);
wdenk5653fc32004-02-08 22:55:38 +00001359 }
wdenkbf9e3b32004-02-12 00:47:09 +00001360 if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
wdenk5653fc32004-02-08 22:55:38 +00001361 return rc;
1362 wp += info->portwidth;
1363 cnt -= info->portwidth;
Stefan Roesef0105722008-03-19 07:09:26 +01001364 FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth);
wdenk5653fc32004-02-08 22:55:38 +00001365 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001366#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
Jerry Van Baren9a042e92008-03-08 13:48:01 -05001367
wdenk5653fc32004-02-08 22:55:38 +00001368 if (cnt == 0) {
1369 return (0);
1370 }
1371
1372 /*
1373 * handle unaligned tail bytes
1374 */
1375 cword.l = 0;
Becky Bruce09ce9922009-02-02 16:34:51 -06001376 p = (uchar *)wp;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001377 for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) {
wdenkbf9e3b32004-02-12 00:47:09 +00001378 flash_add_byte (info, &cword, *src++);
wdenk5653fc32004-02-08 22:55:38 +00001379 --cnt;
1380 }
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001381 for (; i < info->portwidth; ++i)
1382 flash_add_byte (info, &cword, flash_read8(p + i));
wdenk5653fc32004-02-08 22:55:38 +00001383
wdenkbf9e3b32004-02-12 00:47:09 +00001384 return flash_write_cfiword (info, wp, cword);
wdenk5653fc32004-02-08 22:55:38 +00001385}
1386
1387/*-----------------------------------------------------------------------
1388 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001389#ifdef CONFIG_SYS_FLASH_PROTECTION
wdenk5653fc32004-02-08 22:55:38 +00001390
wdenkbf9e3b32004-02-12 00:47:09 +00001391int flash_real_protect (flash_info_t * info, long sector, int prot)
wdenk5653fc32004-02-08 22:55:38 +00001392{
1393 int retcode = 0;
1394
Rafael Camposbc9019e2008-07-31 10:22:20 +02001395 switch (info->vendor) {
1396 case CFI_CMDSET_INTEL_PROG_REGIONS:
1397 case CFI_CMDSET_INTEL_STANDARD:
Nick Spence9e8e63c2008-08-19 22:21:16 -07001398 case CFI_CMDSET_INTEL_EXTENDED:
Philippe De Muyter54652992010-08-17 18:40:25 +02001399 /*
1400 * see errata called
1401 * "Numonyx Axcell P33/P30 Specification Update" :)
1402 */
1403 flash_write_cmd (info, sector, 0, FLASH_CMD_READ_ID);
1404 if (!flash_isequal (info, sector, FLASH_OFFSET_PROTECT,
1405 prot)) {
1406 /*
1407 * cmd must come before FLASH_CMD_PROTECT + 20us
1408 * Disable interrupts which might cause a timeout here.
1409 */
1410 int flag = disable_interrupts ();
1411 unsigned short cmd;
1412
1413 if (prot)
1414 cmd = FLASH_CMD_PROTECT_SET;
1415 else
1416 cmd = FLASH_CMD_PROTECT_CLEAR;
1417
Rafael Camposbc9019e2008-07-31 10:22:20 +02001418 flash_write_cmd (info, sector, 0,
Philippe De Muyter54652992010-08-17 18:40:25 +02001419 FLASH_CMD_PROTECT);
1420 flash_write_cmd (info, sector, 0, cmd);
1421 /* re-enable interrupts if necessary */
1422 if (flag)
1423 enable_interrupts ();
1424 }
Rafael Camposbc9019e2008-07-31 10:22:20 +02001425 break;
1426 case CFI_CMDSET_AMD_EXTENDED:
1427 case CFI_CMDSET_AMD_STANDARD:
Rafael Camposbc9019e2008-07-31 10:22:20 +02001428 /* U-Boot only checks the first byte */
1429 if (info->manufacturer_id == (uchar)ATM_MANUFACT) {
1430 if (prot) {
1431 flash_unlock_seq (info, 0);
1432 flash_write_cmd (info, 0,
1433 info->addr_unlock1,
1434 ATM_CMD_SOFTLOCK_START);
1435 flash_unlock_seq (info, 0);
1436 flash_write_cmd (info, sector, 0,
1437 ATM_CMD_LOCK_SECT);
1438 } else {
1439 flash_write_cmd (info, 0,
1440 info->addr_unlock1,
1441 AMD_CMD_UNLOCK_START);
1442 if (info->device_id == ATM_ID_BV6416)
1443 flash_write_cmd (info, sector,
1444 0, ATM_CMD_UNLOCK_SECT);
1445 }
1446 }
1447 break;
TsiChung Liew4e00acd2008-08-19 16:53:39 +00001448#ifdef CONFIG_FLASH_CFI_LEGACY
1449 case CFI_CMDSET_AMD_LEGACY:
1450 flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
1451 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
1452 if (prot)
1453 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
1454 else
1455 flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
1456#endif
Rafael Camposbc9019e2008-07-31 10:22:20 +02001457 };
wdenk5653fc32004-02-08 22:55:38 +00001458
Stefan Roesedf4e8132010-10-25 18:31:29 +02001459 /*
1460 * Flash needs to be in status register read mode for
1461 * flash_full_status_check() to work correctly
1462 */
1463 flash_write_cmd(info, sector, 0, FLASH_CMD_READ_STATUS);
wdenkbf9e3b32004-02-12 00:47:09 +00001464 if ((retcode =
1465 flash_full_status_check (info, sector, info->erase_blk_tout,
1466 prot ? "protect" : "unprotect")) == 0) {
wdenk5653fc32004-02-08 22:55:38 +00001467
1468 info->protect[sector] = prot;
Stefan Roese2662b402006-04-01 13:41:03 +02001469
1470 /*
1471 * On some of Intel's flash chips (marked via legacy_unlock)
1472 * unprotect unprotects all locking.
1473 */
1474 if ((prot == 0) && (info->legacy_unlock)) {
wdenk5653fc32004-02-08 22:55:38 +00001475 flash_sect_t i;
wdenkbf9e3b32004-02-12 00:47:09 +00001476
1477 for (i = 0; i < info->sector_count; i++) {
1478 if (info->protect[i])
1479 flash_real_protect (info, i, 1);
wdenk5653fc32004-02-08 22:55:38 +00001480 }
1481 }
1482 }
wdenk5653fc32004-02-08 22:55:38 +00001483 return retcode;
wdenkbf9e3b32004-02-12 00:47:09 +00001484}
1485
wdenk5653fc32004-02-08 22:55:38 +00001486/*-----------------------------------------------------------------------
1487 * flash_read_user_serial - read the OneTimeProgramming cells
1488 */
wdenkbf9e3b32004-02-12 00:47:09 +00001489void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
1490 int len)
wdenk5653fc32004-02-08 22:55:38 +00001491{
wdenkbf9e3b32004-02-12 00:47:09 +00001492 uchar *src;
1493 uchar *dst;
wdenk5653fc32004-02-08 22:55:38 +00001494
1495 dst = buffer;
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001496 src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION);
wdenkbf9e3b32004-02-12 00:47:09 +00001497 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1498 memcpy (dst, src + offset, len);
Wolfgang Denkdb421e62005-09-25 16:41:22 +02001499 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsa90b9572011-04-12 00:59:04 -07001500 udelay(1);
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001501 flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src);
wdenk5653fc32004-02-08 22:55:38 +00001502}
wdenkbf9e3b32004-02-12 00:47:09 +00001503
wdenk5653fc32004-02-08 22:55:38 +00001504/*
1505 * flash_read_factory_serial - read the device Id from the protection area
1506 */
wdenkbf9e3b32004-02-12 00:47:09 +00001507void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
1508 int len)
wdenk5653fc32004-02-08 22:55:38 +00001509{
wdenkbf9e3b32004-02-12 00:47:09 +00001510 uchar *src;
wdenkcd37d9e2004-02-10 00:03:41 +00001511
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001512 src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
wdenkbf9e3b32004-02-12 00:47:09 +00001513 flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
1514 memcpy (buffer, src + offset, len);
Wolfgang Denkdb421e62005-09-25 16:41:22 +02001515 flash_write_cmd (info, 0, 0, info->cmd_reset);
Aaron Williamsa90b9572011-04-12 00:59:04 -07001516 udelay(1);
Haavard Skinnemoen12d30aa2007-12-13 12:56:34 +01001517 flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src);
wdenk5653fc32004-02-08 22:55:38 +00001518}
1519
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001520#endif /* CONFIG_SYS_FLASH_PROTECTION */
wdenk5653fc32004-02-08 22:55:38 +00001521
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001522/*-----------------------------------------------------------------------
1523 * Reverse the order of the erase regions in the CFI QRY structure.
1524 * This is needed for chips that are either a) correctly detected as
1525 * top-boot, or b) buggy.
1526 */
1527static void cfi_reverse_geometry(struct cfi_qry *qry)
1528{
1529 unsigned int i, j;
1530 u32 tmp;
1531
1532 for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) {
1533 tmp = qry->erase_region_info[i];
1534 qry->erase_region_info[i] = qry->erase_region_info[j];
1535 qry->erase_region_info[j] = tmp;
1536 }
1537}
wdenk5653fc32004-02-08 22:55:38 +00001538
1539/*-----------------------------------------------------------------------
Stefan Roese260421a2006-11-13 13:55:24 +01001540 * read jedec ids from device and set corresponding fields in info struct
1541 *
1542 * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
1543 *
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001544 */
1545static void cmdset_intel_read_jedec_ids(flash_info_t *info)
1546{
1547 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
Aaron Williamsa90b9572011-04-12 00:59:04 -07001548 udelay(1);
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001549 flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
1550 udelay(1000); /* some flash are slow to respond */
1551 info->manufacturer_id = flash_read_uchar (info,
1552 FLASH_OFFSET_MANUFACTURER_ID);
Philippe De Muyterd77c7ac2010-08-10 16:54:52 +02001553 info->device_id = (info->chipwidth == FLASH_CFI_16BIT) ?
1554 flash_read_word (info, FLASH_OFFSET_DEVICE_ID) :
1555 flash_read_uchar (info, FLASH_OFFSET_DEVICE_ID);
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001556 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1557}
1558
1559static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry)
1560{
1561 info->cmd_reset = FLASH_CMD_RESET;
1562
1563 cmdset_intel_read_jedec_ids(info);
1564 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1565
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001566#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001567 /* read legacy lock/unlock bit from intel flash */
1568 if (info->ext_addr) {
1569 info->legacy_unlock = flash_read_uchar (info,
1570 info->ext_addr + 5) & 0x08;
1571 }
1572#endif
1573
1574 return 0;
1575}
1576
1577static void cmdset_amd_read_jedec_ids(flash_info_t *info)
1578{
Niklaus Giger3a7b2c22009-07-22 17:13:24 +02001579 ushort bankId = 0;
1580 uchar manuId;
1581
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001582 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
1583 flash_unlock_seq(info, 0);
1584 flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
1585 udelay(1000); /* some flash are slow to respond */
Tor Krill90447ec2008-03-28 11:29:10 +01001586
Niklaus Giger3a7b2c22009-07-22 17:13:24 +02001587 manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID);
1588 /* JEDEC JEP106Z specifies ID codes up to bank 7 */
1589 while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) {
1590 bankId += 0x100;
1591 manuId = flash_read_uchar (info,
1592 bankId | FLASH_OFFSET_MANUFACTURER_ID);
1593 }
1594 info->manufacturer_id = manuId;
Tor Krill90447ec2008-03-28 11:29:10 +01001595
1596 switch (info->chipwidth){
1597 case FLASH_CFI_8BIT:
1598 info->device_id = flash_read_uchar (info,
1599 FLASH_OFFSET_DEVICE_ID);
1600 if (info->device_id == 0x7E) {
1601 /* AMD 3-byte (expanded) device ids */
1602 info->device_id2 = flash_read_uchar (info,
1603 FLASH_OFFSET_DEVICE_ID2);
1604 info->device_id2 <<= 8;
1605 info->device_id2 |= flash_read_uchar (info,
1606 FLASH_OFFSET_DEVICE_ID3);
1607 }
1608 break;
1609 case FLASH_CFI_16BIT:
1610 info->device_id = flash_read_word (info,
1611 FLASH_OFFSET_DEVICE_ID);
Heiko Schocher5b448ad2011-04-11 14:16:19 +02001612 if ((info->device_id & 0xff) == 0x7E) {
1613 /* AMD 3-byte (expanded) device ids */
1614 info->device_id2 = flash_read_uchar (info,
1615 FLASH_OFFSET_DEVICE_ID2);
1616 info->device_id2 <<= 8;
1617 info->device_id2 |= flash_read_uchar (info,
1618 FLASH_OFFSET_DEVICE_ID3);
1619 }
Tor Krill90447ec2008-03-28 11:29:10 +01001620 break;
1621 default:
1622 break;
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001623 }
1624 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsa90b9572011-04-12 00:59:04 -07001625 udelay(1);
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001626}
1627
1628static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
1629{
1630 info->cmd_reset = AMD_CMD_RESET;
1631
1632 cmdset_amd_read_jedec_ids(info);
1633 flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
1634
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001635 return 0;
1636}
1637
1638#ifdef CONFIG_FLASH_CFI_LEGACY
Stefan Roese260421a2006-11-13 13:55:24 +01001639static void flash_read_jedec_ids (flash_info_t * info)
1640{
1641 info->manufacturer_id = 0;
1642 info->device_id = 0;
1643 info->device_id2 = 0;
1644
1645 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04001646 case CFI_CMDSET_INTEL_PROG_REGIONS:
Stefan Roese260421a2006-11-13 13:55:24 +01001647 case CFI_CMDSET_INTEL_STANDARD:
1648 case CFI_CMDSET_INTEL_EXTENDED:
Michael Schwingen8225d1e2008-01-12 20:29:47 +01001649 cmdset_intel_read_jedec_ids(info);
Stefan Roese260421a2006-11-13 13:55:24 +01001650 break;
1651 case CFI_CMDSET_AMD_STANDARD:
1652 case CFI_CMDSET_AMD_EXTENDED:
Michael Schwingen8225d1e2008-01-12 20:29:47 +01001653 cmdset_amd_read_jedec_ids(info);
Stefan Roese260421a2006-11-13 13:55:24 +01001654 break;
1655 default:
1656 break;
1657 }
1658}
1659
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001660/*-----------------------------------------------------------------------
1661 * Call board code to request info about non-CFI flash.
1662 * board_flash_get_legacy needs to fill in at least:
1663 * info->portwidth, info->chipwidth and info->interface for Jedec probing.
1664 */
Becky Bruce09ce9922009-02-02 16:34:51 -06001665static int flash_detect_legacy(phys_addr_t base, int banknum)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001666{
1667 flash_info_t *info = &flash_info[banknum];
1668
1669 if (board_flash_get_legacy(base, banknum, info)) {
1670 /* board code may have filled info completely. If not, we
1671 use JEDEC ID probing. */
1672 if (!info->vendor) {
1673 int modes[] = {
1674 CFI_CMDSET_AMD_STANDARD,
1675 CFI_CMDSET_INTEL_STANDARD
1676 };
1677 int i;
1678
1679 for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) {
1680 info->vendor = modes[i];
Becky Bruce09ce9922009-02-02 16:34:51 -06001681 info->start[0] =
1682 (ulong)map_physmem(base,
Stefan Roesee1fb6d02009-02-05 11:44:52 +01001683 info->portwidth,
Becky Bruce09ce9922009-02-02 16:34:51 -06001684 MAP_NOCACHE);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001685 if (info->portwidth == FLASH_CFI_8BIT
1686 && info->interface == FLASH_CFI_X8X16) {
1687 info->addr_unlock1 = 0x2AAA;
1688 info->addr_unlock2 = 0x5555;
1689 } else {
1690 info->addr_unlock1 = 0x5555;
1691 info->addr_unlock2 = 0x2AAA;
1692 }
1693 flash_read_jedec_ids(info);
1694 debug("JEDEC PROBE: ID %x %x %x\n",
1695 info->manufacturer_id,
1696 info->device_id,
1697 info->device_id2);
Becky Bruce09ce9922009-02-02 16:34:51 -06001698 if (jedec_flash_match(info, info->start[0]))
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001699 break;
Becky Bruce09ce9922009-02-02 16:34:51 -06001700 else
Stefan Roesee1fb6d02009-02-05 11:44:52 +01001701 unmap_physmem((void *)info->start[0],
Becky Bruce09ce9922009-02-02 16:34:51 -06001702 MAP_NOCACHE);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001703 }
1704 }
1705
1706 switch(info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04001707 case CFI_CMDSET_INTEL_PROG_REGIONS:
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001708 case CFI_CMDSET_INTEL_STANDARD:
1709 case CFI_CMDSET_INTEL_EXTENDED:
1710 info->cmd_reset = FLASH_CMD_RESET;
1711 break;
1712 case CFI_CMDSET_AMD_STANDARD:
1713 case CFI_CMDSET_AMD_EXTENDED:
1714 case CFI_CMDSET_AMD_LEGACY:
1715 info->cmd_reset = AMD_CMD_RESET;
1716 break;
1717 }
1718 info->flash_id = FLASH_MAN_CFI;
1719 return 1;
1720 }
1721 return 0; /* use CFI */
1722}
1723#else
Becky Bruce09ce9922009-02-02 16:34:51 -06001724static inline int flash_detect_legacy(phys_addr_t base, int banknum)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02001725{
1726 return 0; /* use CFI */
1727}
1728#endif
1729
Stefan Roese260421a2006-11-13 13:55:24 +01001730/*-----------------------------------------------------------------------
wdenk5653fc32004-02-08 22:55:38 +00001731 * detect if flash is compatible with the Common Flash Interface (CFI)
1732 * http://www.jedec.org/download/search/jesd68.pdf
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001733 */
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001734static void flash_read_cfi (flash_info_t *info, void *buf,
1735 unsigned int start, size_t len)
1736{
1737 u8 *p = buf;
1738 unsigned int i;
1739
1740 for (i = 0; i < len; i++)
1741 p[i] = flash_read_uchar(info, start + i);
1742}
1743
Stefan Roesefa36ae72009-10-27 15:15:55 +01001744void __flash_cmd_reset(flash_info_t *info)
1745{
1746 /*
1747 * We do not yet know what kind of commandset to use, so we issue
1748 * the reset command in both Intel and AMD variants, in the hope
1749 * that AMD flash roms ignore the Intel command.
1750 */
1751 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
Aaron Williamsa90b9572011-04-12 00:59:04 -07001752 udelay(1);
Stefan Roesefa36ae72009-10-27 15:15:55 +01001753 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1754}
1755void flash_cmd_reset(flash_info_t *info)
1756 __attribute__((weak,alias("__flash_cmd_reset")));
1757
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001758static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
wdenk5653fc32004-02-08 22:55:38 +00001759{
Wolfgang Denk92eb7292006-12-27 01:26:13 +01001760 int cfi_offset;
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001761
Stefan Roesefa36ae72009-10-27 15:15:55 +01001762 /* Issue FLASH reset command */
1763 flash_cmd_reset(info);
Michael Schwingen1ba639d2008-02-18 23:16:35 +01001764
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001765 for (cfi_offset=0;
1766 cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint);
1767 cfi_offset++) {
1768 flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset],
1769 FLASH_CMD_CFI);
1770 if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
1771 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
1772 && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001773 flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP,
1774 sizeof(struct cfi_qry));
1775 info->interface = le16_to_cpu(qry->interface_desc);
1776
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001777 info->cfi_offset = flash_offset_cfi[cfi_offset];
1778 debug ("device interface is %d\n",
1779 info->interface);
1780 debug ("found port %d chip %d ",
1781 info->portwidth, info->chipwidth);
1782 debug ("port %d bits chip %d bits\n",
1783 info->portwidth << CFI_FLASH_SHIFT_WIDTH,
1784 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
1785
1786 /* calculate command offsets as in the Linux driver */
1787 info->addr_unlock1 = 0x555;
1788 info->addr_unlock2 = 0x2aa;
1789
1790 /*
1791 * modify the unlock address if we are
1792 * in compatibility mode
1793 */
1794 if ( /* x8/x16 in x8 mode */
1795 ((info->chipwidth == FLASH_CFI_BY8) &&
1796 (info->interface == FLASH_CFI_X8X16)) ||
1797 /* x16/x32 in x16 mode */
1798 ((info->chipwidth == FLASH_CFI_BY16) &&
1799 (info->interface == FLASH_CFI_X16X32)))
1800 {
1801 info->addr_unlock1 = 0xaaa;
1802 info->addr_unlock2 = 0x555;
1803 }
1804
1805 info->name = "CFI conformant";
1806 return 1;
1807 }
1808 }
1809
1810 return 0;
1811}
1812
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001813static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001814{
wdenkbf9e3b32004-02-12 00:47:09 +00001815 debug ("flash detect cfi\n");
wdenk5653fc32004-02-08 22:55:38 +00001816
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001817 for (info->portwidth = CONFIG_SYS_FLASH_CFI_WIDTH;
wdenkbf9e3b32004-02-12 00:47:09 +00001818 info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) {
1819 for (info->chipwidth = FLASH_CFI_BY8;
1820 info->chipwidth <= info->portwidth;
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001821 info->chipwidth <<= 1)
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001822 if (__flash_detect_cfi(info, qry))
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01001823 return 1;
wdenk5653fc32004-02-08 22:55:38 +00001824 }
wdenkbf9e3b32004-02-12 00:47:09 +00001825 debug ("not found\n");
wdenk5653fc32004-02-08 22:55:38 +00001826 return 0;
1827}
wdenkbf9e3b32004-02-12 00:47:09 +00001828
wdenk5653fc32004-02-08 22:55:38 +00001829/*
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001830 * Manufacturer-specific quirks. Add workarounds for geometry
1831 * reversal, etc. here.
1832 */
1833static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry)
1834{
1835 /* check if flash geometry needs reversal */
1836 if (qry->num_erase_regions > 1) {
1837 /* reverse geometry if top boot part */
1838 if (info->cfi_version < 0x3131) {
1839 /* CFI < 1.1, try to guess from device id */
1840 if ((info->device_id & 0x80) != 0)
1841 cfi_reverse_geometry(qry);
1842 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
1843 /* CFI >= 1.1, deduct from top/bottom flag */
1844 /* note: ext_addr is valid since cfi_version > 0 */
1845 cfi_reverse_geometry(qry);
1846 }
1847 }
1848}
1849
1850static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry)
1851{
1852 int reverse_geometry = 0;
1853
1854 /* Check the "top boot" bit in the PRI */
1855 if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1))
1856 reverse_geometry = 1;
1857
1858 /* AT49BV6416(T) list the erase regions in the wrong order.
1859 * However, the device ID is identical with the non-broken
Ulf Samuelssoncb82a532009-03-27 23:26:43 +01001860 * AT49BV642D they differ in the high byte.
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001861 */
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001862 if (info->device_id == 0xd6 || info->device_id == 0xd2)
1863 reverse_geometry = !reverse_geometry;
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001864
1865 if (reverse_geometry)
1866 cfi_reverse_geometry(qry);
1867}
1868
Richard Retanubune8eac432009-01-14 08:44:26 -05001869static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
1870{
1871 /* check if flash geometry needs reversal */
1872 if (qry->num_erase_regions > 1) {
1873 /* reverse geometry if top boot part */
1874 if (info->cfi_version < 0x3131) {
Mike Frysinger6a011ce2011-04-10 16:06:29 -04001875 /* CFI < 1.1, guess by device id */
1876 if (info->device_id == 0x22CA || /* M29W320DT */
1877 info->device_id == 0x2256 || /* M29W320ET */
1878 info->device_id == 0x22D7) { /* M29W800DT */
Richard Retanubune8eac432009-01-14 08:44:26 -05001879 cfi_reverse_geometry(qry);
1880 }
Mike Frysinger4c2105c2011-05-09 18:33:36 -04001881 } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
1882 /* CFI >= 1.1, deduct from top/bottom flag */
1883 /* note: ext_addr is valid since cfi_version > 0 */
1884 cfi_reverse_geometry(qry);
Richard Retanubune8eac432009-01-14 08:44:26 -05001885 }
1886 }
1887}
1888
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001889/*
wdenk5653fc32004-02-08 22:55:38 +00001890 * The following code cannot be run from FLASH!
1891 *
1892 */
Anatolij Gustschin34bbb8f2010-11-28 02:13:33 +01001893ulong flash_get_size (phys_addr_t base, int banknum)
wdenk5653fc32004-02-08 22:55:38 +00001894{
wdenkbf9e3b32004-02-12 00:47:09 +00001895 flash_info_t *info = &flash_info[banknum];
wdenk5653fc32004-02-08 22:55:38 +00001896 int i, j;
1897 flash_sect_t sect_cnt;
Becky Bruce09ce9922009-02-02 16:34:51 -06001898 phys_addr_t sector;
wdenk5653fc32004-02-08 22:55:38 +00001899 unsigned long tmp;
1900 int size_ratio;
1901 uchar num_erase_regions;
wdenkbf9e3b32004-02-12 00:47:09 +00001902 int erase_region_size;
1903 int erase_region_count;
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001904 struct cfi_qry qry;
Anatolij Gustschin34bbb8f2010-11-28 02:13:33 +01001905 unsigned long max_size;
Stefan Roese260421a2006-11-13 13:55:24 +01001906
Kumar Galaf9796902008-05-15 15:13:08 -05001907 memset(&qry, 0, sizeof(qry));
1908
Stefan Roese260421a2006-11-13 13:55:24 +01001909 info->ext_addr = 0;
1910 info->cfi_version = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001911#ifdef CONFIG_SYS_FLASH_PROTECTION
Stefan Roese2662b402006-04-01 13:41:03 +02001912 info->legacy_unlock = 0;
1913#endif
wdenk5653fc32004-02-08 22:55:38 +00001914
Becky Bruce09ce9922009-02-02 16:34:51 -06001915 info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE);
wdenk5653fc32004-02-08 22:55:38 +00001916
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001917 if (flash_detect_cfi (info, &qry)) {
1918 info->vendor = le16_to_cpu(qry.p_id);
1919 info->ext_addr = le16_to_cpu(qry.p_adr);
1920 num_erase_regions = qry.num_erase_regions;
1921
Stefan Roese260421a2006-11-13 13:55:24 +01001922 if (info->ext_addr) {
1923 info->cfi_version = (ushort) flash_read_uchar (info,
1924 info->ext_addr + 3) << 8;
1925 info->cfi_version |= (ushort) flash_read_uchar (info,
1926 info->ext_addr + 4);
1927 }
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001928
wdenkbf9e3b32004-02-12 00:47:09 +00001929#ifdef DEBUG
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01001930 flash_printqry (&qry);
wdenkbf9e3b32004-02-12 00:47:09 +00001931#endif
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001932
wdenkbf9e3b32004-02-12 00:47:09 +00001933 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04001934 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenk5653fc32004-02-08 22:55:38 +00001935 case CFI_CMDSET_INTEL_STANDARD:
1936 case CFI_CMDSET_INTEL_EXTENDED:
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001937 cmdset_intel_init(info, &qry);
wdenk5653fc32004-02-08 22:55:38 +00001938 break;
1939 case CFI_CMDSET_AMD_STANDARD:
1940 case CFI_CMDSET_AMD_EXTENDED:
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001941 cmdset_amd_init(info, &qry);
wdenk5653fc32004-02-08 22:55:38 +00001942 break;
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01001943 default:
1944 printf("CFI: Unknown command set 0x%x\n",
1945 info->vendor);
1946 /*
1947 * Unfortunately, this means we don't know how
1948 * to get the chip back to Read mode. Might
1949 * as well try an Intel-style reset...
1950 */
1951 flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
1952 return 0;
wdenk5653fc32004-02-08 22:55:38 +00001953 }
wdenkcd37d9e2004-02-10 00:03:41 +00001954
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001955 /* Do manufacturer-specific fixups */
1956 switch (info->manufacturer_id) {
Mario Schuknecht2c9f48a2011-02-21 13:13:14 +01001957 case 0x0001: /* AMD */
1958 case 0x0037: /* AMIC */
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001959 flash_fixup_amd(info, &qry);
1960 break;
1961 case 0x001f:
1962 flash_fixup_atmel(info, &qry);
1963 break;
Richard Retanubune8eac432009-01-14 08:44:26 -05001964 case 0x0020:
1965 flash_fixup_stm(info, &qry);
1966 break;
Haavard Skinnemoen467bcee2007-12-14 15:36:18 +01001967 }
1968
wdenkbf9e3b32004-02-12 00:47:09 +00001969 debug ("manufacturer is %d\n", info->vendor);
Stefan Roese260421a2006-11-13 13:55:24 +01001970 debug ("manufacturer id is 0x%x\n", info->manufacturer_id);
1971 debug ("device id is 0x%x\n", info->device_id);
1972 debug ("device id2 is 0x%x\n", info->device_id2);
1973 debug ("cfi version is 0x%04x\n", info->cfi_version);
1974
wdenk5653fc32004-02-08 22:55:38 +00001975 size_ratio = info->portwidth / info->chipwidth;
wdenkbf9e3b32004-02-12 00:47:09 +00001976 /* if the chip is x8/x16 reduce the ratio by half */
1977 if ((info->interface == FLASH_CFI_X8X16)
1978 && (info->chipwidth == FLASH_CFI_BY8)) {
1979 size_ratio >>= 1;
1980 }
wdenkbf9e3b32004-02-12 00:47:09 +00001981 debug ("size_ratio %d port %d bits chip %d bits\n",
1982 size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
1983 info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
Ilya Yanokec50a8e2010-10-21 17:20:12 +02001984 info->size = 1 << qry.dev_size;
1985 /* multiply the size by the number of chips */
1986 info->size *= size_ratio;
Anatolij Gustschin34bbb8f2010-11-28 02:13:33 +01001987 max_size = cfi_flash_bank_size(banknum);
Ilya Yanokec50a8e2010-10-21 17:20:12 +02001988 if (max_size && (info->size > max_size)) {
1989 debug("[truncated from %ldMiB]", info->size >> 20);
1990 info->size = max_size;
1991 }
wdenkbf9e3b32004-02-12 00:47:09 +00001992 debug ("found %d erase regions\n", num_erase_regions);
wdenk5653fc32004-02-08 22:55:38 +00001993 sect_cnt = 0;
1994 sector = base;
wdenkbf9e3b32004-02-12 00:47:09 +00001995 for (i = 0; i < num_erase_regions; i++) {
1996 if (i > NUM_ERASE_REGIONS) {
wdenk028ab6b2004-02-23 23:54:43 +00001997 printf ("%d erase regions found, only %d used\n",
1998 num_erase_regions, NUM_ERASE_REGIONS);
wdenk5653fc32004-02-08 22:55:38 +00001999 break;
2000 }
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002001
Haavard Skinnemoen0ddf06d2007-12-14 15:36:17 +01002002 tmp = le32_to_cpu(qry.erase_region_info[i]);
2003 debug("erase region %u: 0x%08lx\n", i, tmp);
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002004
2005 erase_region_count = (tmp & 0xffff) + 1;
2006 tmp >>= 16;
wdenkbf9e3b32004-02-12 00:47:09 +00002007 erase_region_size =
2008 (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
wdenk4c0d4c32004-06-09 17:34:58 +00002009 debug ("erase_region_count = %d erase_region_size = %d\n",
wdenk028ab6b2004-02-23 23:54:43 +00002010 erase_region_count, erase_region_size);
wdenkbf9e3b32004-02-12 00:47:09 +00002011 for (j = 0; j < erase_region_count; j++) {
Ilya Yanokec50a8e2010-10-21 17:20:12 +02002012 if (sector - base >= info->size)
2013 break;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002014 if (sect_cnt >= CONFIG_SYS_MAX_FLASH_SECT) {
Michael Schwingen81b20cc2007-12-07 23:35:02 +01002015 printf("ERROR: too many flash sectors\n");
2016 break;
2017 }
Becky Bruce09ce9922009-02-02 16:34:51 -06002018 info->start[sect_cnt] =
2019 (ulong)map_physmem(sector,
2020 info->portwidth,
2021 MAP_NOCACHE);
wdenk5653fc32004-02-08 22:55:38 +00002022 sector += (erase_region_size * size_ratio);
wdenka1191902005-01-09 17:12:27 +00002023
2024 /*
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002025 * Only read protection status from
2026 * supported devices (intel...)
wdenka1191902005-01-09 17:12:27 +00002027 */
2028 switch (info->vendor) {
Vasiliy Leoenenko9c048b52008-05-07 21:25:33 +04002029 case CFI_CMDSET_INTEL_PROG_REGIONS:
wdenka1191902005-01-09 17:12:27 +00002030 case CFI_CMDSET_INTEL_EXTENDED:
2031 case CFI_CMDSET_INTEL_STANDARD:
Stefan Roesedf4e8132010-10-25 18:31:29 +02002032 /*
2033 * Set flash to read-id mode. Otherwise
2034 * reading protected status is not
2035 * guaranteed.
2036 */
2037 flash_write_cmd(info, sect_cnt, 0,
2038 FLASH_CMD_READ_ID);
wdenka1191902005-01-09 17:12:27 +00002039 info->protect[sect_cnt] =
2040 flash_isset (info, sect_cnt,
2041 FLASH_OFFSET_PROTECT,
2042 FLASH_STATUS_PROTECT);
2043 break;
2044 default:
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002045 /* default: not protected */
2046 info->protect[sect_cnt] = 0;
wdenka1191902005-01-09 17:12:27 +00002047 }
2048
wdenk5653fc32004-02-08 22:55:38 +00002049 sect_cnt++;
2050 }
2051 }
2052
2053 info->sector_count = sect_cnt;
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002054 info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size);
2055 tmp = 1 << qry.block_erase_timeout_typ;
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002056 info->erase_blk_tout = tmp *
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002057 (1 << qry.block_erase_timeout_max);
2058 tmp = (1 << qry.buf_write_timeout_typ) *
2059 (1 << qry.buf_write_timeout_max);
2060
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002061 /* round up when converting to ms */
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002062 info->buffer_write_tout = (tmp + 999) / 1000;
2063 tmp = (1 << qry.word_write_timeout_typ) *
2064 (1 << qry.word_write_timeout_max);
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002065 /* round up when converting to ms */
Haavard Skinnemoene23741f2007-12-14 15:36:16 +01002066 info->write_tout = (tmp + 999) / 1000;
wdenk5653fc32004-02-08 22:55:38 +00002067 info->flash_id = FLASH_MAN_CFI;
Haavard Skinnemoen7e5b9b42007-12-13 12:56:28 +01002068 if ((info->interface == FLASH_CFI_X8X16) &&
2069 (info->chipwidth == FLASH_CFI_BY8)) {
2070 /* XXX - Need to test on x8/x16 in parallel. */
2071 info->portwidth >>= 1;
wdenk855a4962004-03-14 18:23:55 +00002072 }
Mike Frysinger22159872008-10-02 01:55:38 -04002073
2074 flash_write_cmd (info, 0, 0, info->cmd_reset);
wdenk5653fc32004-02-08 22:55:38 +00002075 }
2076
wdenkbf9e3b32004-02-12 00:47:09 +00002077 return (info->size);
wdenk5653fc32004-02-08 22:55:38 +00002078}
2079
Mike Frysinger4ffeab22010-12-22 09:41:13 -05002080#ifdef CONFIG_FLASH_CFI_MTD
Piotr Ziecik6ea808e2008-11-17 15:49:32 +01002081void flash_set_verbose(uint v)
2082{
2083 flash_verbose = v;
2084}
Mike Frysinger4ffeab22010-12-22 09:41:13 -05002085#endif
Piotr Ziecik6ea808e2008-11-17 15:49:32 +01002086
Stefan Roese6f726f92010-10-25 18:31:48 +02002087static void cfi_flash_set_config_reg(u32 base, u16 val)
2088{
2089#ifdef CONFIG_SYS_CFI_FLASH_CONFIG_REGS
2090 /*
2091 * Only set this config register if really defined
2092 * to a valid value (0xffff is invalid)
2093 */
2094 if (val == 0xffff)
2095 return;
2096
2097 /*
2098 * Set configuration register. Data is "encrypted" in the 16 lower
2099 * address bits.
2100 */
2101 flash_write16(FLASH_CMD_SETUP, (void *)(base + (val << 1)));
2102 flash_write16(FLASH_CMD_SET_CR_CONFIRM, (void *)(base + (val << 1)));
2103
2104 /*
2105 * Finally issue reset-command to bring device back to
2106 * read-array mode
2107 */
2108 flash_write16(FLASH_CMD_RESET, (void *)base);
2109#endif
2110}
2111
wdenk5653fc32004-02-08 22:55:38 +00002112/*-----------------------------------------------------------------------
2113 */
Heiko Schocher6ee14162011-04-04 08:10:21 +02002114
2115void flash_protect_default(void)
2116{
Peter Tyser2c519832011-04-13 11:46:56 -05002117#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
2118 int i;
2119 struct apl_s {
2120 ulong start;
2121 ulong size;
2122 } apl[] = CONFIG_SYS_FLASH_AUTOPROTECT_LIST;
2123#endif
2124
Heiko Schocher6ee14162011-04-04 08:10:21 +02002125 /* Monitor protection ON by default */
2126#if (CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE) && \
2127 (!defined(CONFIG_MONITOR_IS_IN_RAM))
2128 flash_protect(FLAG_PROTECT_SET,
2129 CONFIG_SYS_MONITOR_BASE,
2130 CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
2131 flash_get_info(CONFIG_SYS_MONITOR_BASE));
2132#endif
2133
2134 /* Environment protection ON by default */
2135#ifdef CONFIG_ENV_IS_IN_FLASH
2136 flash_protect(FLAG_PROTECT_SET,
2137 CONFIG_ENV_ADDR,
2138 CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
2139 flash_get_info(CONFIG_ENV_ADDR));
2140#endif
2141
2142 /* Redundant environment protection ON by default */
2143#ifdef CONFIG_ENV_ADDR_REDUND
2144 flash_protect(FLAG_PROTECT_SET,
2145 CONFIG_ENV_ADDR_REDUND,
2146 CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
2147 flash_get_info(CONFIG_ENV_ADDR_REDUND));
2148#endif
2149
2150#if defined(CONFIG_SYS_FLASH_AUTOPROTECT_LIST)
2151 for (i = 0; i < (sizeof(apl) / sizeof(struct apl_s)); i++) {
2152 debug("autoprotecting from %08x to %08x\n",
2153 apl[i].start, apl[i].start + apl[i].size - 1);
2154 flash_protect(FLAG_PROTECT_SET,
2155 apl[i].start,
2156 apl[i].start + apl[i].size - 1,
2157 flash_get_info(apl[i].start));
2158 }
2159#endif
2160}
2161
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002162unsigned long flash_init (void)
wdenk5653fc32004-02-08 22:55:38 +00002163{
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002164 unsigned long size = 0;
2165 int i;
wdenk5653fc32004-02-08 22:55:38 +00002166
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002167#ifdef CONFIG_SYS_FLASH_PROTECTION
Eric Schumann3a3baf32009-03-21 09:59:34 -04002168 /* read environment from EEPROM */
2169 char s[64];
Wolfgang Denkcdb74972010-07-24 21:55:43 +02002170 getenv_f("unlock", s, sizeof(s));
Michael Schwingen81b20cc2007-12-07 23:35:02 +01002171#endif
wdenk5653fc32004-02-08 22:55:38 +00002172
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002173 /* Init: no FLASHes known */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002174 for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002175 flash_info[i].flash_id = FLASH_UNKNOWN;
wdenk5653fc32004-02-08 22:55:38 +00002176
Stefan Roese6f726f92010-10-25 18:31:48 +02002177 /* Optionally write flash configuration register */
2178 cfi_flash_set_config_reg(cfi_flash_bank_addr(i),
2179 cfi_flash_config_reg(i));
2180
Stefan Roeseb00e19c2010-08-30 10:11:51 +02002181 if (!flash_detect_legacy(cfi_flash_bank_addr(i), i))
Anatolij Gustschin34bbb8f2010-11-28 02:13:33 +01002182 flash_get_size(cfi_flash_bank_addr(i), i);
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002183 size += flash_info[i].size;
2184 if (flash_info[i].flash_id == FLASH_UNKNOWN) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002185#ifndef CONFIG_SYS_FLASH_QUIET_TEST
Peter Tysereddf52b2010-12-28 18:12:05 -06002186 printf ("## Unknown flash on Bank %d "
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002187 "- Size = 0x%08lx = %ld MB\n",
2188 i+1, flash_info[i].size,
John Schmoller0e3fa012010-09-29 13:49:05 -05002189 flash_info[i].size >> 20);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002190#endif /* CONFIG_SYS_FLASH_QUIET_TEST */
wdenk5653fc32004-02-08 22:55:38 +00002191 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002192#ifdef CONFIG_SYS_FLASH_PROTECTION
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002193 else if ((s != NULL) && (strcmp(s, "yes") == 0)) {
2194 /*
2195 * Only the U-Boot image and it's environment
2196 * is protected, all other sectors are
2197 * unprotected (unlocked) if flash hardware
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002198 * protection is used (CONFIG_SYS_FLASH_PROTECTION)
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002199 * and the environment variable "unlock" is
2200 * set to "yes".
2201 */
2202 if (flash_info[i].legacy_unlock) {
2203 int k;
Stefan Roese79b4cda2006-02-28 15:29:58 +01002204
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002205 /*
2206 * Disable legacy_unlock temporarily,
2207 * since flash_real_protect would
2208 * relock all other sectors again
2209 * otherwise.
2210 */
2211 flash_info[i].legacy_unlock = 0;
Stefan Roese79b4cda2006-02-28 15:29:58 +01002212
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002213 /*
2214 * Legacy unlocking (e.g. Intel J3) ->
2215 * unlock only one sector. This will
2216 * unlock all sectors.
2217 */
2218 flash_real_protect (&flash_info[i], 0, 0);
Stefan Roese79b4cda2006-02-28 15:29:58 +01002219
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002220 flash_info[i].legacy_unlock = 1;
2221
2222 /*
2223 * Manually mark other sectors as
2224 * unlocked (unprotected)
2225 */
2226 for (k = 1; k < flash_info[i].sector_count; k++)
2227 flash_info[i].protect[k] = 0;
2228 } else {
2229 /*
2230 * No legancy unlocking -> unlock all sectors
2231 */
2232 flash_protect (FLAG_PROTECT_CLEAR,
2233 flash_info[i].start[0],
2234 flash_info[i].start[0]
2235 + flash_info[i].size - 1,
2236 &flash_info[i]);
2237 }
Stefan Roese79b4cda2006-02-28 15:29:58 +01002238 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02002239#endif /* CONFIG_SYS_FLASH_PROTECTION */
wdenk5653fc32004-02-08 22:55:38 +00002240 }
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002241
Heiko Schocher6ee14162011-04-04 08:10:21 +02002242 flash_protect_default();
Piotr Ziecik91809ed2008-11-17 15:57:58 +01002243#ifdef CONFIG_FLASH_CFI_MTD
2244 cfi_mtd_init();
2245#endif
2246
Haavard Skinnemoenbe60a902007-10-06 18:55:36 +02002247 return (size);
wdenk5653fc32004-02-08 22:55:38 +00002248}