| Message ID | 1290519180-6764-1-git-send-email-sr@denx.de |
|---|---|
| State | Superseded |
| Delegated to: | Stefan Roese |
| Headers | show |
Dear Stefan Roese, In message <1290519180-6764-1-git-send-email-sr@denx.de> you wrote: > Signed-off-by: Stefan Roese <sr@denx.de> > --- > arch/powerpc/cpu/ppc4xx/start.S | 17 +++-------------- > 1 files changed, 3 insertions(+), 14 deletions(-) > > diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S > index 65195f5..c36c13b 100644 > --- a/arch/powerpc/cpu/ppc4xx/start.S > +++ b/arch/powerpc/cpu/ppc4xx/start.S > @@ -48,21 +48,10 @@ > *------------------------------------------------------------------------------- > */ > > -/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards > - * > - * > - * The processor starts at 0xfffffffc and the code is executed > - * from flash/rom. > - * in memory, but as long we don't jump around before relocating. > - * board_init lies at a quite high address and when the cpu has > - * jumped there, everything is ok. > - * This works because the cpu gives the FLASH (CS0) the whole > - * address space at startup, and board_init lies as a echo of > - * the flash somewhere up there in the memorymap. > - * > - * board_init will change CS0 to be positioned at the correct > - * address and (s)dram will be positioned at address 0 > +/* > + * Startup code for IBM/AMCC PowerPC 4xx (PPC4xx) based boards > */ It appears that the old comment contained some information about how booting and especially address resolution works on 4xx. Is there some way to keep this (non-obvious, at least to me) information, instead of just deleting it? Best regards, Wolfgang Denk
Hi Wolfgang, On Tuesday 23 November 2010 20:58:24 Wolfgang Denk wrote: > It appears that the old comment contained some information about how > booting and especially address resolution works on 4xx. Is there some > way to keep this (non-obvious, at least to me) information, instead of > just deleting it? The old comment was really screwed up. I'll send a patch with a (hopefully) better description shortly. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office@denx.de
diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S index 65195f5..c36c13b 100644 --- a/arch/powerpc/cpu/ppc4xx/start.S +++ b/arch/powerpc/cpu/ppc4xx/start.S @@ -48,21 +48,10 @@ *------------------------------------------------------------------------------- */ -/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards - * - * - * The processor starts at 0xfffffffc and the code is executed - * from flash/rom. - * in memory, but as long we don't jump around before relocating. - * board_init lies at a quite high address and when the cpu has - * jumped there, everything is ok. - * This works because the cpu gives the FLASH (CS0) the whole - * address space at startup, and board_init lies as a echo of - * the flash somewhere up there in the memorymap. - * - * board_init will change CS0 to be positioned at the correct - * address and (s)dram will be positioned at address 0 +/* + * Startup code for IBM/AMCC PowerPC 4xx (PPC4xx) based boards */ + #include <asm-offsets.h> #include <config.h> #include <asm/ppc4xx.h>
Signed-off-by: Stefan Roese <sr@denx.de> --- arch/powerpc/cpu/ppc4xx/start.S | 17 +++-------------- 1 files changed, 3 insertions(+), 14 deletions(-)