Hi, Ansari! Ansari schrieb: > Hi Kumar, > > First of all thanks for ur reply . > > Even i went through the linux source . And i have observe that the reboot > command used to hard reset the core . I have few doubts can u please clarify > me. > > 1. Is there any way to reset the full chip with out using any external > signal (MPC8560) ? (like any register that can be used for reseting the > processor)
I RTFM: It should be the bits RST[1:0] in the Debug Control Register 0 (DBCR0). I didn't find details how the external signals are affected: HRESET_REQ# and friends. The HRESET_REQ# is usually fed back to the CPU's HRESET#. So if the HRESET_REQ# gets asserted by writing to above registers it should really bring down the CPU, it's internal as well as it's external components, which are usually connected to a replication of that signal. However the existence of cpm2_reset() and a qe_reset() (QuiccEngine?) in the code tells me that the above expectations could be wrong. Would be nice to have that verified by some hardware guys from freescale... > 2. Even same reboot command works fine for MPC8540 Processor ?. ...because it doesn't have a cpm ? > 3. what are the factors that makes ramdisk hangs . When its uncompressing ? Well, side effects ? Regards, -- Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Straße 45/1 Linhof Werksgelände D-81379 München Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
