The document TMS320DM644x DMSoC ARM Subsystem Reference Guide (SPRUE14) describes the initial state of various subsystems upon exiting a reset condition. The VPSS in particular is left in a disabled state, which means reset has been de-asserted, but the module's clock is off. Therefore and accesses to this module will not be peformed and you will read back all zeros.
Refer to Section 7 Power and Sleep Controller for details. Table 7-1 describes the state of the VPSS and Table 7-2 indicates the definition of the possible states. Regards, Brandon Azbell Texas Instruments Senior, Group Technical Staff System Applications [EMAIL PROTECTED] email 847.517.4536 voice 847.517.4576 fax 630.561.9593 mobile -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Carlos Ojea Sent: Monday, February 26, 2007 4:37 AM To: [EMAIL PROTECTED] Cc: [email protected] Subject: Re: How to power on the VPSS and VPBE modules from the ARM side inu-boot? Look for davinci_psc_all_enable function at board/davinci/davinci.c Cheers Carlos _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
