Hi Linus,
On Wed, Nov 27, 2013 at 12:33:21PM +0000, Linus Walleij wrote:
> After commit e9e4ea74f06635f2ffc1dffe5ef40c854faa0a90
> "net: smc91x: dont't use SMC_outw for fixing up halfword-aligned data"
> The Versatile SMSC LAN91C111 is crashing like this:
[...]
> This is because the macro operations in smc91x.h defined
> for Versatile are missing SMC_outsw() as used in this
> commit.
>
> The Versatile needs and uses the same accessors as the other
> platforms in the first if(...) clause, just switch it to using
> that and we have one problem less to worry about.
[...]
> diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
> index c9d4c872e81d..902a7c268d82 100644
> --- a/drivers/net/ethernet/smsc/smc91x.h
> +++ b/drivers/net/ethernet/smsc/smc91x.h
> @@ -46,7 +46,8 @@
> defined(CONFIG_MACH_LITTLETON) ||\
> defined(CONFIG_MACH_ZYLONITE2) ||\
> defined(CONFIG_ARCH_VIPER) ||\
> - defined(CONFIG_MACH_STARGATE2)
> + defined(CONFIG_MACH_STARGATE2) ||\
> + defined(CONFIG_ARCH_VERSATILE)
>
> #include <asm/mach-types.h>
>
> @@ -206,23 +207,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
> #define RPC_LSA_DEFAULT RPC_LED_TX_RX
> #define RPC_LSB_DEFAULT RPC_LED_100_10
>
> -#elif defined(CONFIG_ARCH_VERSATILE)
> -
> -#define SMC_CAN_USE_8BIT 1
> -#define SMC_CAN_USE_16BIT 1
> -#define SMC_CAN_USE_32BIT 1
> -#define SMC_NOWAIT 1
> -
> -#define SMC_inb(a, r) readb((a) + (r))
> -#define SMC_inw(a, r) readw((a) + (r))
> -#define SMC_inl(a, r) readl((a) + (r))
> -#define SMC_outb(v, a, r) writeb(v, (a) + (r))
> -#define SMC_outw(v, a, r) writew(v, (a) + (r))
> -#define SMC_outl(v, a, r) writel(v, (a) + (r))
> -#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
> -#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
> -#define SMC_IRQ_FLAGS (-1) /* from resource */
> -
> #elif defined(CONFIG_MN10300)
Ha! I was about to post a different fix for this issue, see below. I think
we may want a combination of the two...
Will
--->8
>From 2b4db3f7ddd560bc52be522098a96a6d18388f0f Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@xxxxxxx>
Date: Wed, 27 Nov 2013 11:32:15 +0000
Subject: [PATCH] net: smc91x: ensure {in,out}sw are defined for platforms with
32-bit PIO
Commit e9e4ea74f066 ("net: smc91x: dont't use SMC_outw for fixing up
halfword-aligned data") introduced a requirement for all 32-bit PIO
capable platforms to implement the string variants for word accessors.
This patch adds the accessors to platforms where they are missing.
Reported-by: Russell King <linux@xxxxxxxxxxxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
drivers/net/ethernet/smsc/smc91x.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index c9d4c872e81d..cbe72022cb52 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -154,6 +154,8 @@ static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
#define SMC_outl(v, a, r) writel(v, (a) + (r))
#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
+#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
+#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
#define SMC_IRQ_FLAGS (-1) /* from resource */
/* We actually can't write halfwords properly if not word aligned */
@@ -221,6 +223,8 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
#define SMC_outl(v, a, r) writel(v, (a) + (r))
#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
+#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
+#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
#define SMC_IRQ_FLAGS (-1) /* from resource */
#elif defined(CONFIG_MN10300)
--
1.8.2.2
--
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