Merge with /home/wd/git/u-boot/testing-NAND/ to add new NAND handling.

[oweals/u-boot.git] / board / icecube / flash.c

diff --git a/board/icecube/flash.c b/board/icecube/flash.c
index 9164bd9ea16ed27b8ea38c09dd0fa1a92760580b..713011c972aa22fb299a7aa3b3813198a55261f7 100644 (file)
--- a/board/icecube/flash.c
+++ b/board/icecube/flash.c
@@ -64,24 +64,20 @@ unsigned long flash_init (void)
        unsigned long size = 0;
        int i;
        extern void flash_preinit(void);
+       extern void flash_afterinit(ulong);
+       ulong flashbase = CFG_FLASH_BASE;
 
        flash_preinit();
 
        /* Init: no FLASHes known */
        for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) {
-               ulong flashbase = CFG_FLASH_BASE;
-
                memset(&flash_info[i], 0, sizeof(flash_info_t));
 
                flash_info[i].size =
                        flash_get_size((FPW *)flashbase, &flash_info[i]);
 
-               if (flash_info[i].flash_id == FLASH_UNKNOWN) {
-                       printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n",
-                       i, flash_info[i].size);
-               }
-
                size += flash_info[i].size;
+               flashbase += 0x800000;
        }
 #if CFG_MONITOR_BASE >= CFG_FLASH_BASE
        /* monitor protection ON by default */
@@ -100,6 +96,7 @@ unsigned long flash_init (void)
 #endif
 
 
+       flash_afterinit(size);
        return size ? size : 1;
 }
 
@@ -126,7 +123,8 @@ static flash_info_t *flash_get_info(ulong base)
 
        for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
                info = & flash_info[i];
-               if (info->start[0] <= base && base <= info->start[0] + info->size - 1)
+               if (info->size &&
+                       info->start[0] <= base && base <= info->start[0] + info->size - 1)
                        break;
        }
 
@@ -141,7 +139,7 @@ void flash_print_info (flash_info_t *info)
        int i;
        uchar *boottype;
        uchar *bootletter;
-       uchar *fmt;
+       char *fmt;
        uchar botbootletter[] = "B";
        uchar topbootletter[] = "T";
        uchar botboottype[] = "bottom boot sector";
@@ -211,6 +209,8 @@ void flash_print_info (flash_info_t *info)
 ulong flash_get_size (FPWV *addr, flash_info_t *info)
 {
        int i;
+       FPWV* addr2;
+
        /* Write auto select command: read Manufacturer ID */
        /* Write auto select command sequence and test FLASH answer */
        addr[FLASH_CYCLE1] = (FPW)0x00AA00AA;   /* for AMD, Intel ignores this */
@@ -256,6 +256,17 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info)
                return (0);                     /* => no or unknown flash */
        }
 
+       /* test for real flash at bank 1 */
+       addr2 = (FPW *)((ulong)addr | 0x800000);
+       if (addr2 != addr &&
+               ((addr2[0] & 0xff) == (addr[0] & 0xff)) && ((FPW)addr2[1] == (FPW)addr[1])) {
+               /* Seems 2 banks are the same space (8Mb chip is installed,
+                * J24 in default position (CS0)). Disable this (first) bank.
+                */
+               info->flash_id = FLASH_UNKNOWN;
+               info->sector_count = 0;
+               info->size = 0;
+       }
        /* Put FLASH back in read mode */
        flash_reset(info);