In message <OE14y3UiIMbhiv9sFU300001b52 at hotmail.com> you wrote: > > I read the flash manual about INTEL 28F640J3A.I know it has two > programming operations:Byte or Word.Byte is 8 bits and the Word is 16 bits. > but I refer some source code in PPCBOOT(/board/nx823/flash.c),I find a > strange thing:
Please do NOT post PPCBoot related questions to a Linux oriented mailing list. This is off topic here. Also note that PPCBoot is a dead end, as development has been discuntinued. You should base any current work on the successor, U-Boot, only. > Here,"data" is ulong and "*addr" is vu_long ,they are both 32 bits.Does > this mean programming operation is 32 bits?If so,it is opposition to the > FLASH manual.Why? This is just a configuration that uses two flash chips (one for the lower 16 bits, the other for the upper 16 bits) to give a 32 bit wide bus. Best regards, 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 Anarchy may not be the best form of government, but it's better than no government at all. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
