diff options
Diffstat (limited to 'board/lwmon/flash.c')
| -rw-r--r-- | board/lwmon/flash.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/board/lwmon/flash.c b/board/lwmon/flash.c index 4004865c31..b894887c93 100644 --- a/board/lwmon/flash.c +++ b/board/lwmon/flash.c @@ -403,6 +403,26 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); + *addr = 0x00600060; /* clear lock bit setup */ + *addr = 0x00D000D0; /* clear lock bit confirm */ + + udelay (1000); + /* This takes awfully long - up to 50 ms and more */ + while (((status = *addr) & 0x00800080) != 0x00800080) { + if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + *addr = 0x00FF00FF; /* reset to read mode */ + return 1; + } + + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + udelay (1000); /* to trigger the watchdog */ + } + *addr = 0x00500050; /* clear status register */ *addr = 0x00200020; /* erase setup */ *addr = 0x00D000D0; /* erase confirm */ @@ -427,6 +447,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) putc ('.'); last = now; } + udelay (1000); /* to trigger the watchdog */ } *addr = 0x00FF00FF; /* reset to read mode */ |