Sorry, an old version.
26.11.2012 12:40, Alexander Varnin пишет:
S3C2443 CPU has a problem with incorrect reading from EXTINTn
registers. So s3c_irqext_type function wrongly modifies them.
So add special check to s3c_irqext_type, to handle this case.
Signed-off-by: Alexander Varnin <fenixk19@xxxxxxx>
---
arch/arm/plat-s3c24xx/irq.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index fe57bbb..bb36fc9 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -219,6 +219,21 @@ s3c_irqext_type(struct irq_data *data, unsigned int type)
}
value = __raw_readl(extint_reg);
+
+ if( (samsung_cpu_id & 0xfffff) == 0x43001) //Hack for 2443 error workaround
+ {
+ int i;
+ int fixed = 0;
+ if(extint_reg == S3C24XX_EXTINT1 || extint_reg == S3C24XX_EXTINT2)
+ for(i=0; i<7;i++)
+ fixed |= (((value >> ((7-i)*4+1)) & 7) | ((value >> ((7-i)*4-3)) & 8)) << i*4;
+ else
+ for(i=0; i<7;i++)
+ fixed |= ( (value >> (7-i)*4) & 0xf ) << i*4;
+ fixed |= (((value>>1) & 7) | ((value<<3) & 8)) << 27;
+ value = fixed;
+ }
+
value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset);
__raw_writel(value, extint_reg);
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
