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zynq: fix cache flush bug for emmc driver (have to invalidate cache *before* read)

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This commit is contained in:
cinap_lenrek 2015-09-05 00:33:57 +02:00
parent b9eb7258bd
commit faf3f0df06
1 changed files with 6 additions and 7 deletions
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13
sys/src/9/zynq/emmc.c
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@ -351,8 +351,13 @@ emmciosetup(int write, void *buf, int bsize, int bcount)
pa = PADDR(buf);
if(write){
/* flush cache before write */
cleandse((uchar*)buf, (uchar*)buf+len);
clean2pa(pa, pa+len);
} else {
/* invalidate cache before read */
invaldse((uchar*)buf, (uchar*)buf+len);
inval2pa(pa, pa+len);
}
r = emmc.regs;
@ -362,7 +367,7 @@ emmciosetup(int write, void *buf, int bsize, int bcount)
}
static void
emmcio(int write, uchar *buf, int len)
emmcio(int write, uchar *, int)
{
u32int *r;
int i;
@ -387,12 +392,6 @@ emmcio(int write, uchar *buf, int len)
}
if(i)
r[Interrupt] = i;
if(!write){
uintptr pa = PADDR(buf);
invaldse((uchar*)buf, (uchar*)buf+len);
inval2pa(pa, pa+len);
}
}
SDio sdio = {