[U-Boot-Users] arm SoC code in U-Boot.
ulf at atmel.com
Mon Mar 5 12:38:22 CET 2007
----- Original Message -----
From: "Txema Lopez" <tlopez at aotek.es>
To: <u-boot-users at lists.sourceforge.net>
Sent: Friday, March 02, 2007 11:03 AM
Subject: [U-Boot-Users] arm SoC code in U-Boot.
> Hi all,
> I'm working in a port for the csb535fs board. I sent a patch to U-Boot
> that includes a new directory (imx21) for the i.MX21 SoC related code
> following the actual policy of U-Boot. Grant Likely thinks (and now I'm
> agree) this code is very similar to imx code and must be put in the same
> directory. But, the SoC related code in U-Boot is located on the
> cpu/arm**** directories, so it's depends on the arm core. My idea is to
> put all this SoC related code in a specific directory (cpu/arm_soc).
> This would be the patch for the makefile.
> --- Makefile 2007-02-27 09:59:17.000000000 +0100
> +++ NewMakefile 2007-03-02 09:19:33.000000000 +0100
> @@ -191,8 +191,12 @@ LIBS = lib_generic/libgeneric.a
> LIBS += board/$(BOARDDIR)/lib$(BOARD).a
> LIBS += cpu/$(CPU)/lib$(CPU).a
> ifdef SOC
> +ifeq ($(ARCH),arm)
> +LIBS += cpu/arm_soc/$(SOC)/lib$(SOC).a
> LIBS += cpu/$(CPU)/$(SOC)/lib$(SOC).a
> LIBS += lib_$(ARCH)/lib$(ARCH).a
> LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a
> fs/jffs2/libjffs2.a \
> fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a
> So, these directories
> Must be moved from cpu/arm**** directories to cpu/arm_soc directory.
> This change could be a quite intrusive and would affect quite a few
> boards, so I need some feedback from the list.
> Wolfgang proposed a particular solution for the imx related code putting
> it in a new directory (cpu/arm/imx_common). For me is OK too. I don't
> know who has the last say in these questions but I would like to know
> what will be the solution to not work in vain.
It won't fix the problem when you have chips with different CPU core
architectures sharing the same peripherals
I.E: ARM926 and AVR32
It is probably better to have directories for IP-vendors.
This have already been proposed by Wolfgang.
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