mirror of
https://github.com/Fishwaldo/u-boot.git
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board/genietv/flash.c: CodingStyle cleanup
Make (mostly) checkpatch clean (don't convert to use I/O accessors yet, so there will be "Use of volatile is usually wrong" warnings left. Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Wolfgang Denk
parent
28c665d4d5
commit
098a8a83ea
1 changed files with 178 additions and 176 deletions
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@ -24,32 +24,33 @@
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#include <common.h>
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#include <mpc8xx.h>
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static ulong flash_get_size (vu_long *addr, flash_info_t *info);
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static int write_word (flash_info_t *info, ulong dest, ulong data);
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static void flash_get_offsets (ulong base, flash_info_t *info);
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static ulong flash_get_size(vu_long *addr, flash_info_t *info);
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static int write_word(flash_info_t *info, ulong dest, ulong data);
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static void flash_get_offsets(ulong base, flash_info_t *info);
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/*-----------------------------------------------------------------------
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*/
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unsigned long flash_init (void)
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unsigned long flash_init(void)
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{
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unsigned long size_b0, size_b1;
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int i;
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/* Init: no FLASHes known */
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for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
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flash_info[i].flash_id = FLASH_UNKNOWN;
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for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
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flash_info[i].flash_id = FLASH_UNKNOWN;
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/* Detect size */
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size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
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size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE,
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&flash_info[0]);
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/* Setup offsets */
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flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
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flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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/* Monitor protection ON by default */
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@ -67,13 +68,13 @@ unsigned long flash_init (void)
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flash_info[0].size = size_b0;
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flash_info[1].size = size_b1;
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return (size_b0 + size_b1);
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return size_b0 + size_b1;
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}
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/*-----------------------------------------------------------------------
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* Fix this to support variable sector sizes
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*/
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static void flash_get_offsets (ulong base, flash_info_t *info)
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static void flash_get_offsets(ulong base, flash_info_t *info)
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{
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int i;
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@ -87,73 +88,85 @@ static void flash_get_offsets (ulong base, flash_info_t *info)
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/*-----------------------------------------------------------------------
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*/
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void flash_print_info (flash_info_t *info)
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void flash_print_info(flash_info_t *info)
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{
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int i;
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if (info->flash_id == FLASH_UNKNOWN)
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{
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puts ("missing or unknown FLASH type\n");
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if (info->flash_id == FLASH_UNKNOWN) {
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puts("missing or unknown FLASH type\n");
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return;
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}
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switch (info->flash_id & FLASH_VENDMASK)
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{
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case FLASH_MAN_AMD: printf ("AMD "); break;
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case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
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case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
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default: printf ("Unknown Vendor "); break;
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switch (info->flash_id & FLASH_VENDMASK) {
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case FLASH_MAN_AMD:
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printf("AMD ");
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break;
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case FLASH_MAN_FUJ:
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printf("FUJITSU ");
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break;
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case FLASH_MAN_BM:
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printf("BRIGHT MICRO ");
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break;
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default:
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printf("Unknown Vendor ");
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break;
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}
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switch (info->flash_id & FLASH_TYPEMASK)
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{
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case FLASH_AM040: printf ("29F040 or 29LV040 (4 Mbit, uniform sectors)\n");
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break;
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case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
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break;
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case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
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break;
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case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
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break;
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case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
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break;
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default: printf ("Unknown Chip Type\n");
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break;
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switch (info->flash_id & FLASH_TYPEMASK) {
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case FLASH_AM040:
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printf("29F040 or 29LV040 (4 Mbit, uniform sectors)\n");
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break;
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case FLASH_AM400B:
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printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM400T:
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printf("AM29LV400T (4 Mbit, top boot sector)\n");
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break;
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case FLASH_AM800B:
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printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM800T:
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printf("AM29LV800T (8 Mbit, top boot sector)\n");
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break;
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case FLASH_AM160B:
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printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM160T:
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printf("AM29LV160T (16 Mbit, top boot sector)\n");
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break;
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case FLASH_AM320B:
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printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T:
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printf("AM29LV320T (32 Mbit, top boot sector)\n");
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break;
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default:
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printf("Unknown Chip Type\n");
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break;
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}
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if (info->size >> 20) {
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printf (" Size: %ld MB in %d Sectors\n",
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info->size >> 20,
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info->sector_count);
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printf(" Size: %ld MB in %d Sectors\n",
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info->size >> 20,
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info->sector_count);
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} else {
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printf (" Size: %ld KB in %d Sectors\n",
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info->size >> 10,
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info->sector_count);
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printf(" Size: %ld KB in %d Sectors\n",
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info->size >> 10,
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info->sector_count);
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}
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puts (" Sector Start Addresses:");
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puts(" Sector Start Addresses:");
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for (i=0; i<info->sector_count; ++i)
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{
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for (i = 0; i < info->sector_count; ++i) {
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if ((i % 5) == 0)
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{
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puts ("\n ");
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}
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puts("\n ");
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printf (" %08lX%s",
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printf(" %08lX%s",
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info->start[i],
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info->protect[i] ? " (RO)" : " ");
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}
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putc ('\n');
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putc('\n');
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return;
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}
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/*-----------------------------------------------------------------------
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@ -163,7 +176,7 @@ void flash_print_info (flash_info_t *info)
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* The following code cannot be run from FLASH!
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*/
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static ulong flash_get_size (vu_long *addr, flash_info_t *info)
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static ulong flash_get_size(vu_long *addr, flash_info_t *info)
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{
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short i;
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volatile unsigned char *caddr;
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@ -173,9 +186,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
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/* Write auto select command: read Manufacturer ID */
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#if 0
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printf("Base address is: %08x\n", caddr);
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#endif
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debug("Base address is: %08x\n", caddr);
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caddr[0x0555] = 0xAA;
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caddr[0x02AA] = 0x55;
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@ -183,51 +194,47 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
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value = caddr[0];
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#if 0
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printf("Manufact ID: %02x\n", value);
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#endif
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switch (value)
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{
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case 0x1: /* AMD_MANUFACT */
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info->flash_id = FLASH_MAN_AMD;
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break;
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debug("Manufact ID: %02x\n", value);
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case 0x4: /* FUJ_MANUFACT */
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info->flash_id = FLASH_MAN_FUJ;
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switch (value) {
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case 0x1: /* AMD_MANUFACT */
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info->flash_id = FLASH_MAN_AMD;
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break;
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case 0x4: /* FUJ_MANUFACT */
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info->flash_id = FLASH_MAN_FUJ;
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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info->sector_count = 0;
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info->size = 0;
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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info->sector_count = 0;
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info->size = 0;
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break;
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}
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value = caddr[1]; /* device ID */
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#if 0
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printf("Device ID: %02x\n", value);
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#endif
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switch (value)
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{
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case AMD_ID_LV040B:
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info->flash_id += FLASH_AM040;
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info->sector_count = 8;
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info->size = 0x00080000;
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break; /* => 512Kb */
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default:
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info->flash_id = FLASH_UNKNOWN;
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return (0); /* => no or unknown flash */
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debug("Device ID: %02x\n", value);
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switch (value) {
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case AMD_ID_LV040B:
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info->flash_id += FLASH_AM040;
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info->sector_count = 8;
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info->size = 0x00080000;
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break; /* => 512Kb */
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default:
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info->flash_id = FLASH_UNKNOWN;
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return 0; /* => no or unknown flash */
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}
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flash_get_offsets ((ulong)addr, &flash_info[0]);
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flash_get_offsets((ulong)addr, &flash_info[0]);
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/* check for protected sectors */
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for (i = 0; i < info->sector_count; i++)
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{
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/* read sector protection at sector address, (A7 .. A0) = 0x02 */
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/* D0 = 1 if protected */
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for (i = 0; i < info->sector_count; i++) {
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/*
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* read sector protection at sector address,
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* (A7 .. A0) = 0x02
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* D0 = 1 if protected
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*/
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caddr = (volatile unsigned char *)(info->start[i]);
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info->protect[i] = caddr[2] & 1;
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}
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@ -235,52 +242,47 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
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/*
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* Prevent writes to uninitialized FLASH.
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*/
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if (info->flash_id != FLASH_UNKNOWN)
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{
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if (info->flash_id != FLASH_UNKNOWN) {
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caddr = (volatile unsigned char *)info->start[0];
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*caddr = 0xF0; /* reset bank */
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}
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return (info->size);
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return info->size;
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}
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/*-----------------------------------------------------------------------
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*/
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int flash_erase (flash_info_t *info, int s_first, int s_last)
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int flash_erase(flash_info_t *info, int s_first, int s_last)
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{
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volatile unsigned char *addr = (volatile unsigned char *)(info->start[0]);
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volatile unsigned char *addr =
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(volatile unsigned char *)(info->start[0]);
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int flag, prot, sect, l_sect;
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ulong start, now, last;
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if ((s_first < 0) || (s_first > s_last)) {
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if (info->flash_id == FLASH_UNKNOWN) {
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printf ("- missing\n");
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} else {
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printf ("- no sectors to erase\n");
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}
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if (info->flash_id == FLASH_UNKNOWN)
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printf("- missing\n");
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else
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printf("- no sectors to erase\n");
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return 1;
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}
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if ((info->flash_id == FLASH_UNKNOWN) ||
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(info->flash_id > FLASH_AMD_COMP)) {
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printf ("Can't erase unknown flash type - aborted\n");
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printf("Can't erase unknown flash type - aborted\n");
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return 1;
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}
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prot = 0;
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for (sect=s_first; sect<=s_last; ++sect) {
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if (info->protect[sect]) {
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for (sect = s_first; sect <= s_last; ++sect) {
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if (info->protect[sect])
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prot++;
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}
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}
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if (prot) {
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printf ("- Warning: %d protected sectors will not be erased!\n",
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printf("- Warning: %d protected sectors will not be erased!\n",
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prot);
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} else {
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printf ("\n");
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printf("\n");
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}
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l_sect = -1;
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@ -295,7 +297,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
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addr[0x02AA] = 0x55;
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/* Start erase on unprotected sectors */
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for (sect = s_first; sect<=s_last; sect++) {
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for (sect = s_first; sect <= s_last; sect++) {
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if (info->protect[sect] == 0) { /* not protected */
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addr = (volatile unsigned char *)(info->start[sect]);
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addr[0] = 0x30;
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@ -308,7 +310,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
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enable_interrupts();
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/* wait at least 80us - let's wait 1 ms */
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udelay (1000);
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udelay(1000);
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/*
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* We wait for the last triggered sector
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@ -316,19 +318,21 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
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if (l_sect < 0)
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goto DONE;
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start = get_timer (0);
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start = get_timer(0);
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last = start;
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addr = (volatile unsigned char *)(info->start[l_sect]);
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while ((addr[0] & 0xFF) != 0xFF)
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{
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if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf ("Timeout\n");
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while ((addr[0] & 0xFF) != 0xFF) {
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now = get_timer(start);
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if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf("Timeout\n");
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return 1;
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}
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/* show that we're waiting */
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if ((now - last) > 1000) { /* every second */
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putc ('.');
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putc('.');
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last = now;
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}
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}
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@ -339,7 +343,7 @@ DONE:
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addr[0] = 0xF0; /* reset bank */
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printf (" done\n");
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printf(" done\n");
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return 0;
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}
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@ -350,7 +354,7 @@ DONE:
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* 2 - Flash not erased
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*/
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int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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{
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ulong cp, wp, data;
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int i, l, rc;
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@ -360,23 +364,26 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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/*
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* handle unaligned start bytes
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*/
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if ((l = addr - wp) != 0) {
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l = addr - wp;
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if (l != 0) {
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data = 0;
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for (i=0, cp=wp; i<l; ++i, ++cp) {
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for (i = 0, cp = wp; i < l; ++i, ++cp)
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data = (data << 8) | (*(uchar *)cp);
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}
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for (; i<4 && cnt>0; ++i) {
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for (; i < 4 && cnt > 0; ++i) {
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data = (data << 8) | *src++;
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--cnt;
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++cp;
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}
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for (; cnt==0 && i<4; ++i, ++cp) {
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for (; cnt == 0 && i < 4; ++i, ++cp)
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data = (data << 8) | (*(uchar *)cp);
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}
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if ((rc = write_word(info, wp, data)) != 0) {
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return (rc);
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}
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rc = write_word(info, wp, data);
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if (rc != 0)
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return rc;
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wp += 4;
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}
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@ -385,33 +392,33 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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*/
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while (cnt >= 4) {
|
||||
data = 0;
|
||||
for (i=0; i<4; ++i) {
|
||||
for (i = 0; i < 4; ++i)
|
||||
data = (data << 8) | *src++;
|
||||
}
|
||||
if ((rc = write_word(info, wp, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
|
||||
rc = write_word(info, wp, data);
|
||||
|
||||
if (rc != 0)
|
||||
return rc;
|
||||
|
||||
wp += 4;
|
||||
cnt -= 4;
|
||||
}
|
||||
|
||||
if (cnt == 0) {
|
||||
return (0);
|
||||
}
|
||||
if (cnt == 0)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* handle unaligned tail bytes
|
||||
*/
|
||||
data = 0;
|
||||
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
|
||||
for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
|
||||
data = (data << 8) | *src++;
|
||||
--cnt;
|
||||
}
|
||||
for (; i<4; ++i, ++cp) {
|
||||
for (; i < 4; ++i, ++cp)
|
||||
data = (data << 8) | (*(uchar *)cp);
|
||||
}
|
||||
|
||||
return (write_word(info, wp, data));
|
||||
return write_word(info, wp, data);
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
|
|
@ -420,10 +427,11 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|||
* 1 - write timeout
|
||||
* 2 - Flash not erased
|
||||
*/
|
||||
static int write_word (flash_info_t *info, ulong dest, ulong data)
|
||||
static int write_word(flash_info_t *info, ulong dest, ulong data)
|
||||
{
|
||||
volatile unsigned char *addr = (volatile unsigned char*)(info->start[0]),
|
||||
*cdest,*cdata;
|
||||
volatile unsigned char *cdest, *cdata;
|
||||
volatile unsigned char *addr =
|
||||
(volatile unsigned char *)(info->start[0]);
|
||||
ulong start;
|
||||
int flag, count = 4 ;
|
||||
|
||||
|
|
@ -431,39 +439,33 @@ static int write_word (flash_info_t *info, ulong dest, ulong data)
|
|||
cdata = (volatile unsigned char *)&data ;
|
||||
|
||||
/* Check if Flash is (sufficiently) erased */
|
||||
if ((*((vu_long *)dest) & data) != data) {
|
||||
return (2);
|
||||
}
|
||||
if ((*((vu_long *)dest) & data) != data)
|
||||
return 2;
|
||||
|
||||
while(count--)
|
||||
{
|
||||
/* Disable interrupts which might cause a timeout here */
|
||||
flag = disable_interrupts();
|
||||
while (count--) {
|
||||
|
||||
addr[0x0555] = 0xAA;
|
||||
addr[0x02AA] = 0x55;
|
||||
addr[0x0555] = 0xA0;
|
||||
/* Disable interrupts which might cause a timeout here */
|
||||
flag = disable_interrupts();
|
||||
|
||||
*cdest = *cdata;
|
||||
addr[0x0555] = 0xAA;
|
||||
addr[0x02AA] = 0x55;
|
||||
addr[0x0555] = 0xA0;
|
||||
|
||||
/* re-enable interrupts if necessary */
|
||||
if (flag)
|
||||
enable_interrupts();
|
||||
*cdest = *cdata;
|
||||
|
||||
/* data polling for D7 */
|
||||
start = get_timer (0);
|
||||
while ((*cdest ^ *cdata) & 0x80)
|
||||
{
|
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
||||
return (1);
|
||||
/* re-enable interrupts if necessary */
|
||||
if (flag)
|
||||
enable_interrupts();
|
||||
|
||||
/* data polling for D7 */
|
||||
start = get_timer(0);
|
||||
while ((*cdest ^ *cdata) & 0x80) {
|
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
cdata++ ;
|
||||
cdest++ ;
|
||||
cdata++ ;
|
||||
cdest++ ;
|
||||
}
|
||||
return (0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue