Hello List, i am using a AT91RM9200-DK based board with 128Mb CFI Flash and U-Boot 1.1.5. While erasing larger areas (>5MB) i get "Flash erase timeout" at several adresses. The number of wait states for flash is checked and high enough. I triggered in cfi_flash.c in flash_status_check() behind get_timer() and found that get_timer() sometimes returned a negative number like 0xfff..... The timer functions are derived from the TC0 which is a 16 timer clocked at 30MHz with a reload value of ~30000. An overflow appears at 1000/s (HZ=1000). Function get_timer() calls basically get_timer_raw() which reads the 16 bit timer TC0. I think that overflows are not handled correctly in this for "if( now >= lastinc" must fail when a wrap appeared between two calls of it.

Has anyone similar problems or found a work around ?

Thanks Thomas -------------------------------------------------------- Absender ist HARTING Electric GmbH & Co. KG; Sitz der Gesellschaft: Espelkamp; Registergericht: Bad Oeynhausen; Register-Nr.: HRA 5602; personlich haftende Gesellschafterin: HARTING Electric Management GmbH; Sitz der Komplementar-GmbH: Espelkamp; Registergericht der Komplementar-GmbH: Bad Oeynhausen; Register-Nr. der Komplementar-GmbH: HRB 8807; Geschaftsfuhrer: Hans Peter Bollin, Dr. Dirk Steinbrink