From 487778b781257831aa9b9140dd3c7ad4176e8314 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Fri, 6 Jun 2003 11:20:01 +0000
Subject: [PATCH] Patch by Robert Schwebel, April 02, 2003: fix for SMSC91111
 driver

---
 CHANGELOG          |  3 +++
 drivers/smc91111.c | 14 ++++++++++++++
 drivers/smc91111.h |  2 +-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index bcb7776738..f9790683bf 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,9 @@
 Changes since U-Boot 0.3.1:
 ======================================================================
 
+* Patch by Robert Schwebel, April 02, 2003:
+  fix for SMSC91111 driver
+
 * Patch by Vladimir Gurevich, 04 Jun 2003:
   make ppc405 ethernet driver compatible with CONFIG_NET_MULTI option
 
diff --git a/drivers/smc91111.c b/drivers/smc91111.c
index 652d859dc6..748830e01c 100644
--- a/drivers/smc91111.c
+++ b/drivers/smc91111.c
@@ -317,6 +317,17 @@ static int poll4int( byte mask, int timeout ) {
 	return 0;
 }
 
+/* Only one release command at a time, please */
+static inline void smc_wait_mmu_release_complete(void)
+{
+	int count = 0;
+	/* assume bank 2 selected */
+	while ( SMC_inw(MMU_CMD_REG) & MC_BUSY ) {
+		udelay(1); // Wait until not busy
+		if( ++count > 200) break;
+	}
+}
+
 /*
  . Function: smc_reset( void )
  . Purpose:
@@ -374,6 +385,7 @@ static void smc_reset( void )
 
 	/* Reset the MMU */
 	SMC_SELECT_BANK( 2 );
+	smc_wait_mmu_release_complete();
 	SMC_outw( MC_RESET, MMU_CMD_REG );
 	while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY )
 		udelay(1); /* Wait until not busy */
@@ -674,6 +686,8 @@ static int smc_open()
 /*	SMC_SELECT_BANK(0); */
 /*	SMC_outw(0, RPC_REG); */
 
+	SMC_SELECT_BANK(1);
+
 #ifdef USE_32_BIT
 	for ( i = 0; i < 6; i += 2 ) {
 		word address;
diff --git a/drivers/smc91111.h b/drivers/smc91111.h
index a372c2734d..3ac0a03d5d 100644
--- a/drivers/smc91111.h
+++ b/drivers/smc91111.h
@@ -80,7 +80,7 @@ typedef unsigned long int 		dword;
 #define	SMC_inw(r) 	(*((volatile word *)(SMC_BASE_ADDRESS+(r))))
 #define SMC_inb(p)	({ \
 	unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p)); \
-	unsigned int __v = *(volatile unsigned short *)((SMC_BASE_ADDRESS + __p) & ~1); \
+	unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \
 	if (__p & 1) __v >>= 8; \
 	else __v &= 0xff; \
 	__v; })
-- 
2.25.1