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Diffstat (limited to 'include/asm-arm/arch-ixp2000/platform.h')
-rw-r--r--include/asm-arm/arch-ixp2000/platform.h29
1 files changed, 0 insertions, 29 deletions
diff --git a/include/asm-arm/arch-ixp2000/platform.h b/include/asm-arm/arch-ixp2000/platform.h
index abdcf51bd28..aabeef2454d 100644
--- a/include/asm-arm/arch-ixp2000/platform.h
+++ b/include/asm-arm/arch-ixp2000/platform.h
@@ -15,39 +15,10 @@
#ifndef __ASSEMBLY__
-/*
- * The IXP2400 B0 silicon contains an erratum (#66) that causes writes
- * to on-chip I/O register to not complete fully. What this means is
- * that if you have a write to on-chip I/O followed by a back-to-back
- * read or write, the first write will happen twice. OR...if it's
- * not a back-to-back transaction, the read or write will generate
- * incorrect data.
- *
- * The official work around for this is to set the on-chip I/O regions
- * as XCB=101 and then force a read-back from the register.
- *
- */
-#if defined(CONFIG_ARCH_ENP2611) || defined(CONFIG_ARCH_IXDP2400) || defined(CONFIG_ARCH_IXDP2401)
-
-#include <asm/system.h> /* Pickup local_irq_ functions */
-
-static inline void ixp2000_reg_write(volatile void *reg, unsigned long val)
-{
- unsigned long dummy;
- unsigned long flags;
-
- local_irq_save(flags);
- *((volatile unsigned long *)reg) = val;
- barrier();
- dummy = *((volatile unsigned long *)reg);
- local_irq_restore(flags);
-}
-#else
static inline void ixp2000_reg_write(volatile void *reg, unsigned long val)
{
*((volatile unsigned long *)reg) = val;
}
-#endif /* IXDP2400 || IXDP2401 */
#define ixp2000_reg_read(reg) (*((volatile unsigned long *)reg))
/*