> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Vishal Oliyil Kunnil
> Sent: 03 March 2008 09:18
> To: [email protected]
> Cc: [EMAIL PROTECTED]
> Subject: [U-Boot-Users] Cortex-M1 support
>
> Hi all,
>
> i have ported u-boot on Cortex-M1 series - It does not use
> the conventional arm routines in lib_arm (as Cortex M1 need
> these in Thumb-2). What is the correct method of integrating
> it in to u-boot ?
> For now I have a new directory named lib_armv6-m. Is it
> better to use place the lib files in existing arm folder ?
>
> Best regards,
> Vishal Oliyil Kunnil
Vishal
Currently I'm envisaging
./lib_arm Existing armv4,v5 assembly code
./lib_armv6 New v6 arm assembly code
./lib_armv6m New v6 thumb assembly code
./lib_armv7 New v7 arm assembly code
./lib_armv7m New v7m thumb assembly code
./cpu/armxxx Existing arm v4,v5 cpus
./cpu/armv6 New v6 arm cpus
./cpu/armv6m New v6 thumb cpus
./cpu/armv7 New v7 arm cpus
./cpu/armv7m New v7 thumb cpus
./include/asm-arm/arch-v6 v6 socs
./include/asm-arm/arch-v6m v6 thumb socs
./include/asm-arm/arch-v7 v7 socs
./include/asm-arm/arch-v7m v7 thumb socs
However it may be possible to reduce this depending on toolchains,
use of unified assembler code, ifdefs etc
I suggest you submit a patch with any v6m dependent code split out as above.
Please try to keep as much code as possible in existing locations,
rather than making identical copies.
I assume you are using the Code Sourcery toolchain....
Regards
Peter
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