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authorMagnus Damm <magnus.damm@gmail.com>2008-06-10 03:33:55 +0400
committerJeff Garzik <jgarzik@redhat.com>2008-06-12 05:58:11 +0400
commit12c03f59c3909159010b87a926f5626d4380d441 (patch)
tree3b1b210b33f55697833ef44dec10b8d73912a99b /drivers/net/smc911x.h
parent699559f84bee8b630c1d16fe1bc8e9667d170d65 (diff)
downloadlinux-12c03f59c3909159010b87a926f5626d4380d441.tar.xz
smc911x: introduce platform data flags
This patch adds a new header file for platform data information together with code that adds run time bus width and irq flag support. Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/smc911x.h')
-rw-r--r--drivers/net/smc911x.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/net/smc911x.h b/drivers/net/smc911x.h
index 271a3e8cf683..266232271a72 100644
--- a/drivers/net/smc911x.h
+++ b/drivers/net/smc911x.h
@@ -29,6 +29,7 @@
#ifndef _SMC911X_H_
#define _SMC911X_H_
+#include <linux/smc911x.h>
/*
* Use the DMA feature on PXA chips
*/
@@ -42,6 +43,12 @@
#define SMC_USE_16BIT 0
#define SMC_USE_32BIT 1
#define SMC_IRQ_SENSE IRQF_TRIGGER_LOW
+#else
+/*
+ * Default configuration
+ */
+
+#define SMC_DYNAMIC_BUS_CONFIG
#endif
/* store this information for the driver.. */
@@ -92,12 +99,84 @@ struct smc911x_local {
struct device *dev;
#endif
void __iomem *base;
+#ifdef SMC_DYNAMIC_BUS_CONFIG
+ struct smc911x_platdata cfg;
+#endif
};
/*
* Define the bus width specific IO macros
*/
+#ifdef SMC_DYNAMIC_BUS_CONFIG
+static inline unsigned int SMC_inl(struct smc911x_local *lp, int reg)
+{
+ void __iomem *ioaddr = lp->base + reg;
+
+ if (lp->cfg.flags & SMC911X_USE_32BIT)
+ return readl(ioaddr);
+
+ if (lp->cfg.flags & SMC911X_USE_16BIT)
+ return readw(ioaddr) | (readw(ioaddr + 2) << 16);
+
+ BUG();
+}
+
+static inline void SMC_outl(unsigned int value, struct smc911x_local *lp,
+ int reg)
+{
+ void __iomem *ioaddr = lp->base + reg;
+
+ if (lp->cfg.flags & SMC911X_USE_32BIT) {
+ writel(value, ioaddr);
+ return;
+ }
+
+ if (lp->cfg.flags & SMC911X_USE_16BIT) {
+ writew(value & 0xffff, ioaddr);
+ writew(value >> 16, ioaddr + 2);
+ return;
+ }
+
+ BUG();
+}
+
+static inline void SMC_insl(struct smc911x_local *lp, int reg,
+ void *addr, unsigned int count)
+{
+ void __iomem *ioaddr = lp->base + reg;
+
+ if (lp->cfg.flags & SMC911X_USE_32BIT) {
+ readsl(ioaddr, addr, count);
+ return;
+ }
+
+ if (lp->cfg.flags & SMC911X_USE_16BIT) {
+ readsw(ioaddr, addr, count * 2);
+ return;
+ }
+
+ BUG();
+}
+
+static inline void SMC_outsl(struct smc911x_local *lp, int reg,
+ void *addr, unsigned int count)
+{
+ void __iomem *ioaddr = lp->base + reg;
+
+ if (lp->cfg.flags & SMC911X_USE_32BIT) {
+ writesl(ioaddr, addr, count);
+ return;
+ }
+
+ if (lp->cfg.flags & SMC911X_USE_16BIT) {
+ writesw(ioaddr, addr, count * 2);
+ return;
+ }
+
+ BUG();
+}
+#else
#if SMC_USE_16BIT
#define SMC_inl(lp, r) ((readw((lp)->base + (r)) & 0xFFFF) + (readw((lp)->base + (r) + 2) << 16))
#define SMC_outl(v, lp, r) \
@@ -115,6 +194,8 @@ struct smc911x_local {
#define SMC_outsl(lp, r, p, l) writesl((int*)((lp)->base + (r)), p, l)
#endif /* SMC_USE_16BIT */
+#endif /* SMC_DYNAMIC_BUS_CONFIG */
+
#ifdef SMC_USE_PXA_DMA
#define SMC_USE_DMA