On Wed, Mar 19, 2008 at 09:22:08AM +0800, ???? wrote: > My board is MPC8360EMDS, my bootm command is "bootm uImage ramdisk_ppc > mpc836x_mds.dtb", I used the MPC8360E_PB_K26_20071012-LTIB.iso to generate > above > uImage, ramdisk_ppc,mpc836x_mds.dtb.
Could you try the latest upstream u-boot, dts, and kernel to see if things are better? > If I fill the frequency to zero on mpc836x_mds.dts, Which frequency property? Did you get any device-tree-related error messages from u-boot? > I also has another question, I modified the HRCW to config the cpu as > 660/330/400 > MHZ during power on, I used the "clocks" command on u-boot to see that the > clock > is real 660/330/400 MHZ, then I changed the frequency value on dts to > 660/330/400, > after the bootm command, the linux was not carshed after serial > configuration, but > the output is random. > > " > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled > serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A > [output from serial is random] > " > > I have config the frequency both on HRCW and devie tree is the same, why the > frequency for serial on linux is not right? Why the 528/260/400 is Ok, the > 660/330/400 has problem on serial. What are you putting in the serial nodes' clock-frequency in each case? -Scott ------------------------------------------------------------------------- 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
