Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-29 08:01:08 +00:00
Code Issues Projects Releases Packages Wiki Activity

smc91111: use SSYNC() rather than asm(ssync) for Blackfin

Browse source 
Since the "ssync" instruction may have hardware anomalies associated with
it, have the smc91111 driver use the SSYNC macro rather than invoking it
directly.  We workaround all the anomalies via this macro.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2008-02-24 23:52:35 -05:00 committed by Wolfgang Denk
parent 77ff7b7444
commit 8a30b47009
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/smc91111.h
View file

@ -186,7 +186,7 @@ typedef unsigned long int dword;
#ifdef CONFIG_ADNPESC1
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))))
#elif CONFIG_BLACKFIN
#define SMC_inw(r) ({ word __v = (*((volatile word *)(SMC_BASE_ADDRESS+(r)))); asm("ssync;"); __v;})
#define SMC_inw(r) ({ word __v = (*((volatile word *)(SMC_BASE_ADDRESS+(r)))); SSYNC(); __v;})
#else
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))))
#endif
@ -195,7 +195,7 @@ typedef unsigned long int dword;
#ifdef CONFIG_ADNPESC1
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))) = d)
#elif CONFIG_BLACKFIN
#define SMC_outw(d,r) {(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d);asm("ssync;");}
#define SMC_outw(d,r) {(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d); SSYNC();}
#else
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
#endif