[U-Boot-Users] cfi_flash.c and lost volatile qualifier

Wolfgang Denk wd at denx.de
Tue Apr 29 22:43:48 CEST 2008


In message <alpine.DEB.1.10.0804291604250.32753 at pmy.adscville> you wrote:
> 
>  	I narrowed down the source of the problem to the loss of the 
> volatile qualifier on the addr pointer in flash_write_cmd().  Adding the 
> qualifier gets rid of the corruption.  In the older 1.2.0 sources, addr was 
> declared as "volatile cfiptr_t addr;".

The volatile should not be needed - the CFI driver should use correct
accessor macros instead. See
Documentation/volatile-considered-harmful.txt in your Linux kernel
source tree...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
No one wants war.
	-- Kirk, "Errand of Mercy", stardate 3201.7




More information about the U-Boot mailing list