Dear Macpaul Lin, In message <caccg+xpxhcpx5hnvmzegk3refutv9hnhjpbtlyw809+xuh-...@mail.gmail.com> you wrote: > > I've found that there is still a problem about taking volatile off in macro > __arch_get()/__arch_put() > on NDS32 based platforms. > GCC will optimized the code if the driver call x86 io emulation functions > if there is no volatile in __arch_get().
Do not use volatile constructs. Instead, use proper memory barrier instructions. > --bcaec51dd69dc100b404b25e1791 > Content-Type: text/html; charset=ISO-8859-1 > Content-Transfer-Encoding: quoted-printable And _please_ stop sending HTML! 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: w...@denx.de "They that can give up essential liberty to obtain a little temporary saftey deserve neither liberty not saftey." - Benjamin Franklin, 1759 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
