In message <000b01c1fb37$50751cf0$1a11efcb at industrialDiv.hanasys.co.kr> you wrote: > > Hi, > I want to make a flash file system on a custom MPC755 board with a 64-bit > (bus width) flash memory. > I set CONFIG_MTD_PHYSMAP_BUSWIDTH = 8 at kernel configure, and when it boots > the following message appears. > > physmap flash device: 400000 at 7c000000 > genprobe_new_chip called with unsupported buswidth 8
Seems your MTD drivers are missing support for 64 bit buswidth. > Is it possible to make a flash file system with a flash memory of 64 bit bus > width? If possible, what's the method? Please let me know. We implemented this long ago. See our kernel source tree at ftp://ftp.denx.de/pub/LinuxPPC/usr/src/ For example: ... TQM8260 flash bank 0: Using static image partition definition Creating 4 MTD partitions on "TQM8260 Bank 0": 0x00000000-0x00040000 : "ppcboot" 0x00040000-0x00100000 : "kernel" 0x00100000-0x00400000 : "initrd" 0x00400000-0x00800000 : "jffs" ... Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de There are two ways to write error-free programs. Only the third one works. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
