Hi We have a custom made board and we are running 8250 processor. We are using DMA to transmit and receive data between peripheral and memory. The data is getting corrupted while transmitting and receiving. We are suspecting it might be due to data cache being enabled. So I disabled data cache in the routine enable_cache in the file arch/ppc/kernel/head.S. I rebuilt the kernel and when I run on my board it hangs after printing "Now booting the kernel". I would like to know why the kernel is not booting up. I have enclosed the console output:
Transfering control to linux (at address 00400040) loaded at : 00400040 0040b340 relocated to : 00400000 0040b300 board data at: 007FFE40 007FFEF8 relocated to: 0040B148 0040B200 image at: 0040B340 004B6026 avail ram: 004B7000 04000000 Linux/PPC load: console=ttyS0,9600 root=/dev/mtdblock/1 Uncompressing linux Now booting the kernel Also I would like to understand what is the use of ESE bit in SIUMCR. Should this bit be always enabled whenever data cache is enabled. Any help is appreciated. Yahoo! Tax Center - File online, calculators, forms, and more http://platinum.yahoo.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
