Greetings all, Hi, I have 8MB AMD29FXX flash organized as 16 chips of 0.5 MB each as DIMM package on a MPC885 board. The same is accessed as a 4 x 2MB interleaved flash, of effective sector size 256k. I'm using the MTD concatation option to interleave thes chips. I'm using Arabella Linux, kernel 2.4.25.
When I attempt to write a 256k chunk of data to an erased sector the kerel crashes with the followng dump Waitin c03b2000[25] 'driv_mtd' Last syscall: 4 last math 00000000 last altivec 00000000 GPR00: 00040000 7FFFFDC0 00000000 0000000A 00000001 00000008 3006C2A4 00000001 GPR08: 7FFFFCD0 00000190 00000001 10010EAC 300052EC 00000000 30005140 30005000 GPR16: 00000002 000000CC riv_mtd' Last syscall: 4 last math 00000000 last altivec 00000000 GPR00: 00040000 7FFFFDC0 00000000 0000000A 00000001 00000008 3006C2A4 00000001 GPR08: 7FFFFCD0 00000190 00000001 10010EAC 300052EC 00000000 30005140 30005000 GPR16: 00000002 000000CC 300050A0 000000CC 30002D6C 30000C1C 00003915 30005154 GPR24: 30000130 30000000 10000000 10000000 00000003 10014000 00000000 00000000 Call backtrace: 100008A0 30026FE0 30026FFC 10000780 00000000 7FFFFF74 Kernel panic: Aiee, killing interrupt handler! In interrupt handler - not syncing <0>Rebooting in 180 seconds.. However when I try to write to the same sector in smaller chunks of 512 bytes, with a sleep of a few microseconds, the write operation to entire sector is successful, however a warning is raised. Warning: DQ5 raised while program operation was in progress, however operation completed OK I have the following is my kernel configuration : CONFIG_MTD=y CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CONCAT=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_CFI=y CONFIG_MTD_JEDECPROBE=y CONFIG_MTD_GEN_PROBE=y CONFIG_MTD_CFI_ADV_OPTIONS=y CONFIG_MTD_CFI_BE_BYTE_SWAP=y CONFIG_MTD_CFI_GEOMETRY=y CONFIG_MTD_CFI_B4=y CONFIG_MTD_CFI_I4=y CONFIG_MTD_CFI_AMDSTD=y CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_START=2800000 CONFIG_MTD_PHYSMAP_LEN=800000 CONFIG_MTD_PHYSMAP_BUSWIDTH=4 Is there a maximum chunk that be written to a sector a one shot? What am I doing wrong? TIA, -raghav- ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/