On Thu, 2015-03-05 at 01:26 -0600, Bansal Aneesh-B39320 wrote:
-----Original Message----- From: Wood Scott-B07421 Sent: Thursday, March 05, 2015 2:41 AM To: Bansal Aneesh-B39320 Cc: u-boot@lists.denx.de; Sun York-R58495; Gupta Ruchika-R66431 Subject: Re: [U-Boot, 1/2, v4] powerpc/mpc85xx: SECURE BOOT- NAND secure boot target for P3041
Where does the 3.5G limitation come from? Even if the physical address needs to be elsewhere due to bootrom constraints, we should be able to map it wherever we want in the TLB once U-Boot takes control.
The 3.5G limitation comes from BootROM in case of secure Boot. Initially U-Boot has to run from CPC configured as SRAM with address Within 3.5G. Once U-boot has relocated to DDR, we have removed the Corresponding TLB entry.
Again, you could relocate the virtual address of L3 much earlier.
-Scott