Dear all, I am writing a device driver for my customized PLB hardware module on my PPC405 & Xilinx ML403 architecture. In the driver code, I use a "iowrite32()" function to initiate a DMA transfer. However, I found that if I program as "iowrite32(0x12345678, address);", actually I am writing 0x87654321 to that address. However if I write a standalone program without a Linux OS, the Xilinx function "XIo_Out32()" just write the correct value 0x12345678 into address. Can anyone explain my why this happens? I know that PPC405 is a big-endian system. But I don't think this is a endian problem. After all endian is only an issue of the CPU architecture, not the OS. Am I right?
Thanks for your hints. BR Ming _________________________________________________________________ 享用世界上最大的电子邮件系统― MSN Hotmail。 http://www.hotmail.com _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
