[MIPS] Alchemy: SMBus resource fix
Sergei Shtylyov [Sat, 5 Apr 2008 18:16:21 +0000 (22:16 +0400)]
The Alchemy platform code registers the SMBus device using the virtual
address of its registers instead of the physical one -- fix this, taking
into account that actually the whole megabyte is decoded by any of the
programmable serial controllers (one of which is SMBus), and that all the
Alchemy peripherals are directly mappable into KSEG1 kernel space and
therefore ioremap() call would just boil down to CKSEG1ADDR() invocation.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/au1000/common/platform.c
drivers/i2c/busses/i2c-au1550.c

index 31d2a22..dbefa9e 100644 (file)
@@ -269,8 +269,8 @@ static struct platform_device au1x00_pcmcia_device = {
 #ifdef SMBUS_PSC_BASE
 static struct resource pbdb_smbus_resources[] = {
        {
-               .start  = SMBUS_PSC_BASE,
-               .end    = SMBUS_PSC_BASE + 0x24 - 1,
+               .start  = CPHYSADDR(SMBUS_PSC_BASE),
+               .end    = CPHYSADDR(SMBUS_PSC_BASE + 0xfffff),
                .flags  = IORESOURCE_MEM,
        },
 };
index 491718f..cae9dc8 100644 (file)
@@ -335,7 +335,7 @@ i2c_au1550_probe(struct platform_device *pdev)
                goto out_mem;
        }
 
-       priv->psc_base = r->start;
+       priv->psc_base = CKSEG1ADDR(r->start);
        priv->xfer_timeout = 200;
        priv->ack_timeout = 200;