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@@ -24,13 +24,13 @@
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#include <common.h>
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-ulong myflush(void);
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+ulong myflush (void);
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#define FLASH_BANK_SIZE PHYS_FLASH_SIZE
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-#define MAIN_SECT_SIZE 0x10000 /* 64 KB */
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+#define MAIN_SECT_SIZE 0x10000 /* 64 KB */
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-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
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+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
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#define CMD_READ_ARRAY 0x000000F0
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@@ -47,7 +47,7 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
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#define BIT_ERASE_DONE 0x00000080
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#define BIT_RDY_MASK 0x00000080
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#define BIT_PROGRAM_ERROR 0x00000020
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-#define BIT_TIMEOUT 0x80000000 /* our flag */
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+#define BIT_TIMEOUT 0x80000000 /* our flag */
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#define READY 1
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#define ERR 2
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@@ -56,391 +56,378 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
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/*-----------------------------------------------------------------------
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*/
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-ulong flash_init(void)
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+ulong flash_init (void)
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{
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- int i, j;
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- ulong size = 0;
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+ int i, j;
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+ ulong size = 0;
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- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
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- {
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- ulong flashbase = 0;
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- flash_info[i].flash_id =
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+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
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+ ulong flashbase = 0;
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+
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+ flash_info[i].flash_id =
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#if defined(CONFIG_AMD_LV400)
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- (AMD_MANUFACT & FLASH_VENDMASK) |
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- (AMD_ID_LV400B & FLASH_TYPEMASK);
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+ (AMD_MANUFACT & FLASH_VENDMASK) |
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+ (AMD_ID_LV400B & FLASH_TYPEMASK);
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#elif defined(CONFIG_AMD_LV800)
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- (AMD_MANUFACT & FLASH_VENDMASK) |
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- (AMD_ID_LV800B & FLASH_TYPEMASK);
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+ (AMD_MANUFACT & FLASH_VENDMASK) |
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+ (AMD_ID_LV800B & FLASH_TYPEMASK);
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#else
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#error "Unknown flash configured"
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#endif
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- flash_info[i].size = FLASH_BANK_SIZE;
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- flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
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- memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
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- if (i == 0)
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- flashbase = PHYS_FLASH_1;
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- else
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- panic("configured too many flash banks!\n");
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- for (j = 0; j < flash_info[i].sector_count; j++)
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- {
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- if (j <= 3)
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- {
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- /* 1st one is 16 KB */
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- if (j == 0)
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- {
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- flash_info[i].start[j] = flashbase + 0;
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- }
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-
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- /* 2nd and 3rd are both 8 KB */
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- if ((j == 1) || (j == 2))
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- {
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- flash_info[i].start[j] = flashbase + 0x4000 + (j-1)*0x2000;
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- }
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-
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- /* 4th 32 KB */
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- if (j == 3)
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- {
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- flash_info[i].start[j] = flashbase + 0x8000;
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+ flash_info[i].size = FLASH_BANK_SIZE;
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+ flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
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+ memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
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+ if (i == 0)
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+ flashbase = PHYS_FLASH_1;
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+ else
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+ panic ("configured too many flash banks!\n");
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+ for (j = 0; j < flash_info[i].sector_count; j++) {
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+ if (j <= 3) {
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+ /* 1st one is 16 KB */
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+ if (j == 0) {
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+ flash_info[i].start[j] =
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+ flashbase + 0;
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+ }
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+
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+ /* 2nd and 3rd are both 8 KB */
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+ if ((j == 1) || (j == 2)) {
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+ flash_info[i].start[j] =
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+ flashbase + 0x4000 + (j -
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+ 1) *
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+ 0x2000;
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+ }
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+
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+ /* 4th 32 KB */
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+ if (j == 3) {
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+ flash_info[i].start[j] =
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+ flashbase + 0x8000;
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+ }
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+ } else {
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+ flash_info[i].start[j] =
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+ flashbase + (j - 3) * MAIN_SECT_SIZE;
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+ }
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}
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- }
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- else
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- {
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- flash_info[i].start[j] = flashbase + (j - 3)*MAIN_SECT_SIZE;
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- }
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+ size += flash_info[i].size;
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}
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- size += flash_info[i].size;
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- }
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- flash_protect(FLAG_PROTECT_SET,
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- CFG_FLASH_BASE,
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- CFG_FLASH_BASE + monitor_flash_len - 1,
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- &flash_info[0]);
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+ flash_protect (FLAG_PROTECT_SET,
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+ CFG_FLASH_BASE,
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+ CFG_FLASH_BASE + monitor_flash_len - 1,
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+ &flash_info[0]);
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- flash_protect(FLAG_PROTECT_SET,
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- CFG_ENV_ADDR,
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- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
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- &flash_info[0]);
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+ flash_protect (FLAG_PROTECT_SET,
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+ CFG_ENV_ADDR,
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+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
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- return size;
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+ return size;
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}
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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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-
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- switch (info->flash_id & FLASH_VENDMASK)
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- {
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- case (AMD_MANUFACT & FLASH_VENDMASK):
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- printf("AMD: ");
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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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-
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- switch (info->flash_id & FLASH_TYPEMASK)
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- {
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- case (AMD_ID_LV400B & FLASH_TYPEMASK):
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- printf("1x Amd29LV400BB (4Mbit)\n");
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- break;
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- case (AMD_ID_LV800B & FLASH_TYPEMASK):
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- printf("1x Amd29LV800BB (8Mbit)\n");
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- break;
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- default:
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- printf("Unknown Chip Type\n");
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- goto Done;
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- break;
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- }
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-
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- printf(" Size: %ld MB in %d Sectors\n",
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- info->size >> 20, info->sector_count);
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-
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- printf(" Sector Start Addresses:");
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- for (i = 0; i < info->sector_count; i++)
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- {
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- if ((i % 5) == 0)
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- {
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- printf ("\n ");
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+ int i;
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+
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+ switch (info->flash_id & FLASH_VENDMASK) {
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+ case (AMD_MANUFACT & FLASH_VENDMASK):
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+ printf ("AMD: ");
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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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- printf (" %08lX%s", info->start[i],
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- info->protect[i] ? " (RO)" : " ");
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- }
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- printf ("\n");
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-Done:
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+ switch (info->flash_id & FLASH_TYPEMASK) {
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+ case (AMD_ID_LV400B & FLASH_TYPEMASK):
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+ printf ("1x Amd29LV400BB (4Mbit)\n");
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+ break;
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+ case (AMD_ID_LV800B & FLASH_TYPEMASK):
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+ printf ("1x Amd29LV800BB (8Mbit)\n");
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+ break;
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+ default:
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+ printf ("Unknown Chip Type\n");
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+ goto Done;
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+ break;
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+ }
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+
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+ printf (" Size: %ld MB in %d Sectors\n",
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+ info->size >> 20, info->sector_count);
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+
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+ printf (" Sector Start Addresses:");
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+ for (i = 0; i < info->sector_count; i++) {
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+ if ((i % 5) == 0) {
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+ printf ("\n ");
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+ }
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+ printf (" %08lX%s", info->start[i],
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+ info->protect[i] ? " (RO)" : " ");
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+ }
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+ printf ("\n");
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+
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+ Done:;
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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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- ushort result;
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- int iflag, cflag, prot, sect;
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- int rc = ERR_OK;
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- int chip;
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-
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- /* first look for protection bits */
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+ ushort result;
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+ int iflag, cflag, prot, sect;
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+ int rc = ERR_OK;
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+ int chip;
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- if (info->flash_id == FLASH_UNKNOWN)
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- return ERR_UNKNOWN_FLASH_TYPE;
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+ /* first look for protection bits */
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- if ((s_first < 0) || (s_first > s_last)) {
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- return ERR_INVAL;
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- }
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+ if (info->flash_id == FLASH_UNKNOWN)
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+ return ERR_UNKNOWN_FLASH_TYPE;
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- if ((info->flash_id & FLASH_VENDMASK) !=
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- (AMD_MANUFACT & FLASH_VENDMASK)) {
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- return ERR_UNKNOWN_FLASH_VENDOR;
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- }
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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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- prot++;
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+ if ((s_first < 0) || (s_first > s_last)) {
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+ return ERR_INVAL;
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}
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- }
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- if (prot)
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- return ERR_PROTECTED;
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-
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- /*
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- * Disable interrupts which might cause a timeout
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- * here. Remember that our exception vectors are
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- * at address 0 in the flash, and we don't want a
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- * (ticker) exception to happen while the flash
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- * chip is in programming mode.
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- */
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- cflag = icache_status();
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- icache_disable();
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- iflag = disable_interrupts();
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-
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- /* Start erase on unprotected sectors */
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- for (sect = s_first; sect<=s_last && !ctrlc(); sect++)
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- {
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- printf("Erasing sector %2d ... ", sect);
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-
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- /* arm simple, non interrupt dependent timer */
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- reset_timer_masked();
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-
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- if (info->protect[sect] == 0)
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- { /* not protected */
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- vu_short *addr = (vu_short *)(info->start[sect]);
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-
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- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
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- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
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- MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
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-
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- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
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- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
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- *addr = CMD_ERASE_CONFIRM;
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-
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- /* wait until flash is ready */
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- chip = 0;
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- do
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- {
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- result = *addr;
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+ if ((info->flash_id & FLASH_VENDMASK) !=
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+ (AMD_MANUFACT & FLASH_VENDMASK)) {
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+ return ERR_UNKNOWN_FLASH_VENDOR;
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+ }
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- /* check timeout */
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- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
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- {
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- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
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- chip = TMO;
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- break;
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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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+ prot++;
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}
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-
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- if (!chip && (result & 0xFFFF) & BIT_ERASE_DONE)
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- chip = READY;
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-
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- if (!chip && (result & 0xFFFF) & BIT_PROGRAM_ERROR)
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- chip = ERR;
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-
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- } while (!chip);
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-
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- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
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-
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- if (chip == ERR)
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- {
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- rc = ERR_PROG_ERROR;
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- goto outahere;
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- }
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- if (chip == TMO)
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- {
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- rc = ERR_TIMOUT;
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- goto outahere;
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- }
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-
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- printf("ok.\n");
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}
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- else /* it was protected */
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- {
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- printf("protected!\n");
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+ if (prot)
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+ return ERR_PROTECTED;
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+
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+ /*
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+ * Disable interrupts which might cause a timeout
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+ * here. Remember that our exception vectors are
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+ * at address 0 in the flash, and we don't want a
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+ * (ticker) exception to happen while the flash
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+ * chip is in programming mode.
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+ */
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+ cflag = icache_status ();
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+ icache_disable ();
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+ iflag = disable_interrupts ();
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+
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+ /* Start erase on unprotected sectors */
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+ for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
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+ printf ("Erasing sector %2d ... ", sect);
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+
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+ /* arm simple, non interrupt dependent timer */
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+ reset_timer_masked ();
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+
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+ if (info->protect[sect] == 0) { /* not protected */
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+ vu_short *addr = (vu_short *) (info->start[sect]);
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+
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+ MEM_FLASH_ADDR1 = CMD_UNLOCK1;
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+ MEM_FLASH_ADDR2 = CMD_UNLOCK2;
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+ MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
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+
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+ MEM_FLASH_ADDR1 = CMD_UNLOCK1;
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+ MEM_FLASH_ADDR2 = CMD_UNLOCK2;
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+ *addr = CMD_ERASE_CONFIRM;
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+
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+ /* wait until flash is ready */
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+ chip = 0;
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+
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+ do {
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+ result = *addr;
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+
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+ /* check timeout */
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+ if (get_timer_masked () >
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+ CFG_FLASH_ERASE_TOUT) {
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+ MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
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+ chip = TMO;
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+ break;
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+ }
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+
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+ if (!chip
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+ && (result & 0xFFFF) & BIT_ERASE_DONE)
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+ chip = READY;
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+
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+ if (!chip
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+ && (result & 0xFFFF) & BIT_PROGRAM_ERROR)
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+ chip = ERR;
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+
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+ } while (!chip);
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+
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+ MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
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+
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+ if (chip == ERR) {
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+ rc = ERR_PROG_ERROR;
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+ goto outahere;
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+ }
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+ if (chip == TMO) {
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+ rc = ERR_TIMOUT;
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+ goto outahere;
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+ }
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+
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+ printf ("ok.\n");
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+ } else { /* it was protected */
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+
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+ printf ("protected!\n");
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+ }
|
|
|
}
|
|
|
- }
|
|
|
|
|
|
- if (ctrlc())
|
|
|
- printf("User Interrupt!\n");
|
|
|
+ if (ctrlc ())
|
|
|
+ printf ("User Interrupt!\n");
|
|
|
|
|
|
-outahere:
|
|
|
- /* allow flash to settle - wait 10 ms */
|
|
|
- udelay_masked(10000);
|
|
|
+ outahere:
|
|
|
+ /* allow flash to settle - wait 10 ms */
|
|
|
+ udelay_masked (10000);
|
|
|
|
|
|
- if (iflag)
|
|
|
- enable_interrupts();
|
|
|
+ if (iflag)
|
|
|
+ enable_interrupts ();
|
|
|
|
|
|
- if (cflag)
|
|
|
- icache_enable();
|
|
|
+ if (cflag)
|
|
|
+ icache_enable ();
|
|
|
|
|
|
- return rc;
|
|
|
+ return rc;
|
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
* Copy memory to flash
|
|
|
*/
|
|
|
|
|
|
-volatile static int write_hword (flash_info_t *info, ulong dest, ushort data)
|
|
|
+volatile static int write_hword (flash_info_t * info, ulong dest, ushort data)
|
|
|
{
|
|
|
- vu_short *addr = (vu_short *)dest;
|
|
|
- ushort result;
|
|
|
- int rc = ERR_OK;
|
|
|
- int cflag, iflag;
|
|
|
- int chip;
|
|
|
-
|
|
|
- /*
|
|
|
- * Check if Flash is (sufficiently) erased
|
|
|
- */
|
|
|
- result = *addr;
|
|
|
- if ((result & data) != data)
|
|
|
- return ERR_NOT_ERASED;
|
|
|
-
|
|
|
-
|
|
|
- /*
|
|
|
- * Disable interrupts which might cause a timeout
|
|
|
- * here. Remember that our exception vectors are
|
|
|
- * at address 0 in the flash, and we don't want a
|
|
|
- * (ticker) exception to happen while the flash
|
|
|
- * chip is in programming mode.
|
|
|
- */
|
|
|
- cflag = icache_status();
|
|
|
- icache_disable();
|
|
|
- iflag = disable_interrupts();
|
|
|
-
|
|
|
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
|
|
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
|
|
- MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS;
|
|
|
- *addr = CMD_PROGRAM;
|
|
|
- *addr = data;
|
|
|
-
|
|
|
- /* arm simple, non interrupt dependent timer */
|
|
|
- reset_timer_masked();
|
|
|
-
|
|
|
- /* wait until flash is ready */
|
|
|
- chip = 0;
|
|
|
- do
|
|
|
- {
|
|
|
+ vu_short *addr = (vu_short *) dest;
|
|
|
+ ushort result;
|
|
|
+ int rc = ERR_OK;
|
|
|
+ int cflag, iflag;
|
|
|
+ int chip;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Check if Flash is (sufficiently) erased
|
|
|
+ */
|
|
|
result = *addr;
|
|
|
+ if ((result & data) != data)
|
|
|
+ return ERR_NOT_ERASED;
|
|
|
+
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Disable interrupts which might cause a timeout
|
|
|
+ * here. Remember that our exception vectors are
|
|
|
+ * at address 0 in the flash, and we don't want a
|
|
|
+ * (ticker) exception to happen while the flash
|
|
|
+ * chip is in programming mode.
|
|
|
+ */
|
|
|
+ cflag = icache_status ();
|
|
|
+ icache_disable ();
|
|
|
+ iflag = disable_interrupts ();
|
|
|
+
|
|
|
+ MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
|
|
+ MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
|
|
+ MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS;
|
|
|
+ *addr = CMD_PROGRAM;
|
|
|
+ *addr = data;
|
|
|
|
|
|
- /* check timeout */
|
|
|
- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
|
|
|
- {
|
|
|
- chip = ERR | TMO;
|
|
|
- break;
|
|
|
- }
|
|
|
- if (!chip && ((result & 0x80) == (data & 0x80)))
|
|
|
- chip = READY;
|
|
|
+ /* arm simple, non interrupt dependent timer */
|
|
|
+ reset_timer_masked ();
|
|
|
|
|
|
- if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR))
|
|
|
- {
|
|
|
+ /* wait until flash is ready */
|
|
|
+ chip = 0;
|
|
|
+ do {
|
|
|
result = *addr;
|
|
|
|
|
|
- if ((result & 0x80) == (data & 0x80))
|
|
|
+ /* check timeout */
|
|
|
+ if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
|
|
|
+ chip = ERR | TMO;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (!chip && ((result & 0x80) == (data & 0x80)))
|
|
|
chip = READY;
|
|
|
- else
|
|
|
- chip = ERR;
|
|
|
- }
|
|
|
|
|
|
- } while (!chip);
|
|
|
+ if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) {
|
|
|
+ result = *addr;
|
|
|
+
|
|
|
+ if ((result & 0x80) == (data & 0x80))
|
|
|
+ chip = READY;
|
|
|
+ else
|
|
|
+ chip = ERR;
|
|
|
+ }
|
|
|
+
|
|
|
+ } while (!chip);
|
|
|
|
|
|
- *addr = CMD_READ_ARRAY;
|
|
|
+ *addr = CMD_READ_ARRAY;
|
|
|
|
|
|
- if (chip == ERR || *addr != data)
|
|
|
- rc = ERR_PROG_ERROR;
|
|
|
+ if (chip == ERR || *addr != data)
|
|
|
+ rc = ERR_PROG_ERROR;
|
|
|
|
|
|
- if (iflag)
|
|
|
- enable_interrupts();
|
|
|
+ if (iflag)
|
|
|
+ enable_interrupts ();
|
|
|
|
|
|
- if (cflag)
|
|
|
- icache_enable();
|
|
|
+ if (cflag)
|
|
|
+ icache_enable ();
|
|
|
|
|
|
- return rc;
|
|
|
+ return rc;
|
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
* Copy memory to flash.
|
|
|
*/
|
|
|
|
|
|
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
|
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
|
{
|
|
|
- ulong cp, wp;
|
|
|
- int l;
|
|
|
- int i, rc;
|
|
|
- ushort data;
|
|
|
-
|
|
|
- wp = (addr & ~1); /* get lower word aligned address */
|
|
|
+ ulong cp, wp;
|
|
|
+ int l;
|
|
|
+ int i, rc;
|
|
|
+ ushort data;
|
|
|
+
|
|
|
+ wp = (addr & ~1); /* get lower word aligned address */
|
|
|
+
|
|
|
+ /*
|
|
|
+ * handle unaligned start bytes
|
|
|
+ */
|
|
|
+ if ((l = addr - wp) != 0) {
|
|
|
+ data = 0;
|
|
|
+ for (i = 0, cp = wp; i < l; ++i, ++cp) {
|
|
|
+ data = (data >> 8) | (*(uchar *) cp << 8);
|
|
|
+ }
|
|
|
+ for (; i < 2 && cnt > 0; ++i) {
|
|
|
+ data = (data >> 8) | (*src++ << 8);
|
|
|
+ --cnt;
|
|
|
+ ++cp;
|
|
|
+ }
|
|
|
+ for (; cnt == 0 && i < 2; ++i, ++cp) {
|
|
|
+ data = (data >> 8) | (*(uchar *) cp << 8);
|
|
|
+ }
|
|
|
|
|
|
- /*
|
|
|
- * handle unaligned start bytes
|
|
|
- */
|
|
|
- if ((l = addr - wp) != 0) {
|
|
|
- data = 0;
|
|
|
- for (i=0, cp=wp; i<l; ++i, ++cp) {
|
|
|
- data = (data >> 8) | (*(uchar *)cp << 8);
|
|
|
+ if ((rc = write_hword (info, wp, data)) != 0) {
|
|
|
+ return (rc);
|
|
|
+ }
|
|
|
+ wp += 2;
|
|
|
}
|
|
|
- for (; i<2 && cnt>0; ++i) {
|
|
|
- data = (data >> 8) | (*src++ << 8);
|
|
|
- --cnt;
|
|
|
- ++cp;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * handle word aligned part
|
|
|
+ */
|
|
|
+ while (cnt >= 2) {
|
|
|
+ data = *((vu_short *) src);
|
|
|
+ if ((rc = write_hword (info, wp, data)) != 0) {
|
|
|
+ return (rc);
|
|
|
+ }
|
|
|
+ src += 2;
|
|
|
+ wp += 2;
|
|
|
+ cnt -= 2;
|
|
|
}
|
|
|
- for (; cnt==0 && i<2; ++i, ++cp) {
|
|
|
- data = (data >> 8) | (*(uchar *)cp << 8);
|
|
|
+
|
|
|
+ if (cnt == 0) {
|
|
|
+ return ERR_OK;
|
|
|
}
|
|
|
|
|
|
- if ((rc = write_hword(info, wp, data)) != 0) {
|
|
|
- return (rc);
|
|
|
+ /*
|
|
|
+ * handle unaligned tail bytes
|
|
|
+ */
|
|
|
+ data = 0;
|
|
|
+ for (i = 0, cp = wp; i < 2 && cnt > 0; ++i, ++cp) {
|
|
|
+ data = (data >> 8) | (*src++ << 8);
|
|
|
+ --cnt;
|
|
|
}
|
|
|
- wp += 2;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * handle word aligned part
|
|
|
- */
|
|
|
- while (cnt >= 2) {
|
|
|
- data = *((vu_short*)src);
|
|
|
- if ((rc = write_hword(info, wp, data)) != 0) {
|
|
|
- return (rc);
|
|
|
+ for (; i < 2; ++i, ++cp) {
|
|
|
+ data = (data >> 8) | (*(uchar *) cp << 8);
|
|
|
}
|
|
|
- src += 2;
|
|
|
- wp += 2;
|
|
|
- cnt -= 2;
|
|
|
- }
|
|
|
-
|
|
|
- if (cnt == 0) {
|
|
|
- return ERR_OK;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * handle unaligned tail bytes
|
|
|
- */
|
|
|
- data = 0;
|
|
|
- for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
|
|
|
- data = (data >> 8) | (*src++ << 8);
|
|
|
- --cnt;
|
|
|
- }
|
|
|
- for (; i<2; ++i, ++cp) {
|
|
|
- data = (data >> 8) | (*(uchar *)cp << 8);
|
|
|
- }
|
|
|
-
|
|
|
- return write_hword(info, wp, data);
|
|
|
+
|
|
|
+ return write_hword (info, wp, data);
|
|
|
}
|