On Feb 26, 2008, at 11:30 AM, s.balamurugan wrote: > Hi, > We are using MPC8555 processor and uboot 1.1.4 both the uboot and > linux > was up. Now we plan to port QNX, we are facing following issues. > > 1. Qnx is not jumping to the startup location. After giving go > command > control is still in the uboot only. > > 2. When searching in the mailling list we came to know qnx required > to > flush the Data Cache before disabling it in the uboot level > (common/cmd_bootelf.c line no:59) > > 3. I checked other powerpc architecture like 7xx/74xx, 86xx and 4xx. > These architecture has seperate cache.S file ( cpu/mpc86xx/ > cache.S). That > file contains flush_data_cache function to flush the cache before > disabling it. But in the MPC85xx flushing the data cache was missing. > > 4. This is a bug in the 85xx uboot code. Is there any work arround for > this?
1.1.4 is a fairly old u-boot at this point. I believe we have reworked the PPC cache ops and fixed the fact that 85xx was missing flush_data_cache in the process. - k ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
