From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Date: Sun, 3 May 2020 17:43:32 +0000 (+0200)
Subject: net: pcnet: fix I/O primitives for memory access
X-Git-Tag: v2020.10~238
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8510580f2e85a8687b40fe5fc3d8c060e5278505;p=platform%2Fkernel%2Fu-boot.git

net: pcnet: fix I/O primitives for memory access

Commit 69529c912059 ("net: pcnet: Switch to PCI memory access")
switched from PCI IO access to PCI memory access without updating
the I/O primitives. Contrary to SH, the primitives for memory
access and IO access are implemented differently. Thus doing
memory access with IO port primitives breaks the driver on
MIPS Malta board.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
---

diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 34a5a16..f97e7f8 100644
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -91,37 +91,49 @@ static pcnet_priv_t *lp;
 
 static u16 pcnet_read_csr(struct eth_device *dev, int index)
 {
-	outw(index, dev->iobase + PCNET_RAP);
-	return inw(dev->iobase + PCNET_RDP);
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	writew(index, base + PCNET_RAP);
+	return readw(base + PCNET_RDP);
 }
 
 static void pcnet_write_csr(struct eth_device *dev, int index, u16 val)
 {
-	outw(index, dev->iobase + PCNET_RAP);
-	outw(val, dev->iobase + PCNET_RDP);
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	writew(index, base + PCNET_RAP);
+	writew(val, base + PCNET_RDP);
 }
 
 static u16 pcnet_read_bcr(struct eth_device *dev, int index)
 {
-	outw(index, dev->iobase + PCNET_RAP);
-	return inw(dev->iobase + PCNET_BDP);
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	writew(index, base + PCNET_RAP);
+	return readw(base + PCNET_BDP);
 }
 
 static void pcnet_write_bcr(struct eth_device *dev, int index, u16 val)
 {
-	outw(index, dev->iobase + PCNET_RAP);
-	outw(val, dev->iobase + PCNET_BDP);
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	writew(index, base + PCNET_RAP);
+	writew(val, base + PCNET_BDP);
 }
 
 static void pcnet_reset(struct eth_device *dev)
 {
-	inw(dev->iobase + PCNET_RESET);
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	readw(base + PCNET_RESET);
 }
 
 static int pcnet_check(struct eth_device *dev)
 {
-	outw(88, dev->iobase + PCNET_RAP);
-	return inw(dev->iobase + PCNET_RAP) == 88;
+	void __iomem *base = (void __iomem *)dev->iobase;
+
+	writew(88, base + PCNET_RAP);
+	return readw(base + PCNET_RAP) == 88;
 }
 
 static int pcnet_init (struct eth_device *dev, bd_t * bis);