From 8a1d11f7973f3b4d01f2d9e7c57a4a0c5e7c3959 Mon Sep 17 00:00:00 2001 From: Julius Werner Date: Thu, 17 Jul 2014 10:43:15 -0700 Subject: libpayload: Expand setbits_le32() and fix readl() const-ness setbits_le32() is not really arch-specific... the arch-specific part of accessing memory is wrapped by readl() and writel(), and the endianness can be accounted for with the right macros. Generalize the definitions, add a be32 version and move them to endian.h so that all platforms can use them. Also include endian.h from libpayload.h so we won't update any payload's old use of the macros (endianness is something useful enough to always have avalable anyway, and shouldn't clash with other things). This also fixes a bug where these macros would only be available if libpayload-config.h had been independently included before. Also fix a bug with readl() macros on all archs where they refused to work on const pointers (which they should). CQ-DEPEND=CL:208712 BUG=None TEST=Stuff still compiles. Built and booted on Storm. Original-Change-Id: I01a7fbadbb5d740675657d95c1e969027562ba8c Original-Signed-off-by: Julius Werner Original-Reviewed-on: https://chromium-review.googlesource.com/208713 Original-Reviewed-by: Vadim Bendebury Original-Reviewed-by: David Hendricks (cherry picked from commit 951f8a6d77bc21bd793bf4f228a0965ade586f00) Signed-off-by: Marc Jones Change-Id: I51c25f01b200b91abbe32c879905349bb05dc9c8 Reviewed-on: http://review.coreboot.org/8129 Reviewed-by: Stefan Reinauer Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- payloads/libpayload/include/x86/arch/io.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'payloads/libpayload/include/x86') diff --git a/payloads/libpayload/include/x86/arch/io.h b/payloads/libpayload/include/x86/arch/io.h index bcfd30771e..0cb610fcc3 100644 --- a/payloads/libpayload/include/x86/arch/io.h +++ b/payloads/libpayload/include/x86/arch/io.h @@ -31,9 +31,9 @@ #ifndef _ARCH_IO_H #define _ARCH_IO_H -#define readb(_a) (*(volatile unsigned char *) (_a)) -#define readw(_a) (*(volatile unsigned short *) (_a)) -#define readl(_a) (*(volatile unsigned long *) (_a)) +#define readb(_a) (*(volatile const unsigned char *) (_a)) +#define readw(_a) (*(volatile const unsigned short *) (_a)) +#define readl(_a) (*(volatile const unsigned long *) (_a)) #define writeb(_v, _a) (*(volatile unsigned char *) (_a) = (_v)) #define writew(_v, _a) (*(volatile unsigned short *) (_a) = (_v)) -- cgit v1.2.3