From: Txema Lopez [mailto:tlopez@aotek.es] Sent: 14 February 2007 09:01 To: Joakim Tjernlund Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] [PATCH] Fixup relocation patch.]
Joakim Tjernlund wrote:
I wonder, how far off is a fully relocatable u-boot? That
is, burn it anywhere
in flash and start it from there?
Jocke
Hi Jocke, The patch was done precisely for it. You can copy a U-Boot image from an address in flash to another and calculate the new pointers in the GOT an FIXUP sections before do the copy. But you need another change in U-Boot to turn it fully relocatable. U-Boot is hardly joined with the link address TEXT_BASE. You must replace it for a label in U-Boot and change the lines in the U-Boot code where there is a direct or indirect reference (as CFG_MONITOR_BASE) to TEXT_BASE.
Best regards, Txema
Hi Txema
Can you give an example on how to change these references to TEXT_BASE/CFG_MONITOR_BASE?
Regards Jocke