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-----Original Message----- From: Peter Pearse [mailto:peter.pearse@arm.com] Sent: 18 March 2008 09:32 To: 'Nishanth Menon' Subject: RE: [U-Boot-Users] Uboot-V2: ARM: towards a common start-arm.S
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Nishanth Menon Sent: 17 March 2008 22:32 To: s.hauer@pengutronix.de; u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] Uboot-V2: ARM: towards a common start-arm.S
Hi Sascha,
I think we dont have a seperate list for uboot-v2, so, just
wanted to
know the opinion of having a single
arch/arm/cpu/start-arm.S instead
of multiple start-arm files. essentially providing hooks to arch,soc,board specific preinits can allow us to reuse major chunk of code.. I have attached a sample start-arm.S (modified from start-arm920t.S) as reference.
Great idea.
Two trivial points.
a) In the past confusion has arisen because the reset vector is so called. Some users thought the code after reset: caused a reset, rather than running after the cpu has been reset. Could it be renamed start_code, as per current arm920t/start.S?
b) I dont believe that relocating the vector table to the reset address is ARCH or SOC dependent. It depends on TEXT_BASE and whether memory at the reset location is writeable. So it should be in your start.S somewhere, as per current arm920t/start.S.
Regards
Peter