Could we have an ACK before relese please? > After the removal of COLD/WARM start flags my mpc8321 > board didn't boot anymore. > Trial and error suggests that map/remap_flash_by_xxx needs > to wait after updating LBLAWAR1 to make sure the the change has > reached the HW before continuing with the code that depends on it. > Final fix suggested by Scott Wood. > > Signed-off-by: Joakim Tjernlund <joakim.tjernl...@transmode.se> > --- > > v2: Final adjustmenst based on inpt from Scott Wood. > arch/powerpc/cpu/mpc83xx/start.S | 8 ++++++++ > 1 files changed, 8 insertions(+), 0 deletions(-) > > diff --git a/arch/powerpc/cpu/mpc83xx/start.S > b/arch/powerpc/cpu/mpc83xx/start.S > index e8b1ebc..5a9b790 100644 > --- a/arch/powerpc/cpu/mpc83xx/start.S > +++ b/arch/powerpc/cpu/mpc83xx/start.S > @@ -1191,6 +1191,10 @@ map_flash_by_law1: > bne 1b > > stw r4, LBLAWAR1(r3) /* LBLAWAR1 <= 8MB Flash Size */ > + /* Wait for HW to catch up */ > + lwz r4, LBLAWAR1(r3) > + twi 0,r4,0 > + isync > blr > > /* Though all the LBIU Local Access Windows and LBC Banks will be > @@ -1229,5 +1233,9 @@ remap_flash_by_law0: > xor r4, r4, r4 > stw r4, LBLAWBAR1(r3) > stw r4, LBLAWAR1(r3) /* Off LBIU LAW1 */ > + /* Wait for HW to catch up */ > + lwz r4, LBLAWAR1(r3) > + twi 0,r4,0 > + isync > blr > #endif /* CONFIG_SYS_FLASHBOOT */ > -- > 1.7.2.2 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot
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