From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gary Thomas To: ligl Cc: ecos-discuss@sources.redhat.com, Àå¿øÈ£ Subject: Re: [ECOS] Please check my *.ecc file Date: Tue, 15 Aug 2000 04:09:00 -0000 Message-id: References: <001801c00655$c2797360$c2080b0a@huawei.com.cn> X-SW-Source: 2000-08/msg00148.html Just so we're straight, you're using the basic 'mbx' port on a platform which is very much the same, but with a different memory map? If this is the only difference, then you can use CDL to control and describe these differences. Look at the ARM/EDB7xxx ports for examples. If there are more differences than just the memory map, perhaps you want to have a completely new platform, with the associated CDL. In any case, the code cited below is pretty ugly. I'll apply the attached patch to make it better. On 15-Aug-2000 ligl wrote: > You must to modify the mbx.S for your rom: > >#ifdef CYG_HAL_STARTUP_ROM > # move return address to where the ROM is > mflr r3 > andi. r3,r3,0xffff > oris r3,r3,0x0600 ====>> oris r3,r3,0xfc00 > mtlr r3 >#endif > ----- Original Message ----- > From: Àå¿øÈ£ > To: ecos-discuss@sources.redhat.com > Sent: Saturday, August 12, 2000 4:39 PM > Subject: [ECOS] Please check my *.ecc file > > > Thanks to your e-mail ,I succeeded building the stub. > However my stub rom was not running on the MBX . > > I just modified rom origin address( 0x6000000 -> 0xfc000000) in target.ld file. You should really make such changes in the MLT. Editting of 'target.ld' will only get you into trouble in the long run (plus my patches won't help!) Index: hal/powerpc/arch/current/ChangeLog =================================================================== RCS file: /local/cvsfiles/ecc/ecc/hal/powerpc/arch/current/ChangeLog,v retrieving revision 1.224 diff -u -5 -p -r1.224 ChangeLog --- hal/powerpc/arch/current/ChangeLog 2000/06/28 09:45:12 1.224 +++ hal/powerpc/arch/current/ChangeLog 2000/08/15 11:04:02 @@ -1,5 +1,9 @@ +2000-08-15 Gary Thomas + + * src/hal_mk_defs.c: Export memory layout for use by assembly code. + 2000-06-27 Jesper Skov * src/vectors.S: Removed unnecessary CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT checks. Index: hal/powerpc/arch/current/src/hal_mk_defs.c =================================================================== RCS file: /local/cvsfiles/ecc/ecc/hal/powerpc/arch/current/src/hal_mk_defs.c,v retrieving revision 1.3 diff -u -5 -p -r1.3 hal_mk_defs.c --- hal/powerpc/arch/current/src/hal_mk_defs.c 2000/02/22 10:14:53 1.3 +++ hal/powerpc/arch/current/src/hal_mk_defs.c 2000/08/15 11:04:03 @@ -42,10 +42,11 @@ //####DESCRIPTIONEND#### // //========================================================================== #include +#include CYGHWR_MEMORY_LAYOUT_H #include // HAL header #include // HAL header #ifdef CYGPKG_KERNEL # include @@ -121,10 +122,18 @@ main(void) DEFINE(CYGNUM_HAL_VSR_COUNT, CYGNUM_HAL_VSR_COUNT); // Variant definitions - want these to be included instead. #ifdef CYGPKG_HAL_POWERPC_MPC8xx DEFINE(CYGNUM_HAL_VECTOR_NMI, CYGNUM_HAL_VECTOR_NMI); +#endif + + // Memory layout values (since these aren't "asm"-safe) +#ifdef CYGMEM_REGION_rom + DEFINE(CYGMEM_REGION_rom, CYGMEM_REGION_rom); +#endif +#ifdef CYGMEM_REGION_ram + DEFINE(CYGMEM_REGION_ram, CYGMEM_REGION_ram); #endif } //-------------------------------------------------------------------------- // EOF hal_mk_defs.c Index: hal/powerpc/mbx/current/ChangeLog =================================================================== RCS file: /local/cvsfiles/ecc/ecc/hal/powerpc/mbx/current/ChangeLog,v retrieving revision 1.61 diff -u -5 -p -r1.61 ChangeLog --- hal/powerpc/mbx/current/ChangeLog 2000/06/28 09:45:17 1.61 +++ hal/powerpc/mbx/current/ChangeLog 2000/08/15 11:03:16 @@ -1,5 +1,9 @@ +2000-08-15 Gary Thomas + + * src/mbx.S: Use actual ROM layout instead of magic numbers. + 2000-06-28 Jesper Skov * include/hal_diag.h: * src/hal_diag.c: Cleanup. Index: hal/powerpc/mbx/current/src/mbx.S =================================================================== RCS file: /local/cvsfiles/ecc/ecc/hal/powerpc/mbx/current/src/mbx.S,v retrieving revision 1.15 diff -u -5 -p -r1.15 mbx.S --- hal/powerpc/mbx/current/src/mbx.S 2000/02/21 14:55:13 1.15 +++ hal/powerpc/mbx/current/src/mbx.S 2000/08/15 11:01:34 @@ -402,11 +402,11 @@ FUNC_START( hal_hardware_init ) #ifdef CYG_HAL_STARTUP_ROM # move return address to where the ROM is mflr r3 andi. r3,r3,0xffff - oris r3,r3,0xfe00 + oris r3,r3,CYGMEM_REGION_rom>>16 mtlr r3 #endif blr FUNC_END( hal_hardware_init )