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authorwdenk <wdenk>2004-11-02 13:00:33 +0000
committerwdenk <wdenk>2004-11-02 13:00:33 +0000
commit1f6d4258c25bc41ce8404d3485ace1989f796a2f (patch)
tree0d8f04fd02a0c4294fa919bd3a0c62c95713ed39
parent983fda8391fa0ccfd4e0fd0bfb5a5e662e07b222 (diff)
downloadu-boot-linaro-stable-1f6d4258c25bc41ce8404d3485ace1989f796a2f.tar.gz
Work around for Ethernet problems on Xaeniax board
-rw-r--r--CHANGELOG2
-rw-r--r--drivers/smc91111.c33
-rw-r--r--drivers/smc91111.h22
-rw-r--r--include/configs/xaeniax.h2
4 files changed, 55 insertions, 4 deletions
diff --git a/CHANGELOG b/CHANGELOG
index 693ead40c..83344c711 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,8 @@
Changes since U-Boot 1.1.1:
======================================================================
+* Work around for Ethernet problems on Xaeniax board
+
* Patch by TsiChung Liew, 23 Sep 2004:
- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards
diff --git a/drivers/smc91111.c b/drivers/smc91111.c
index 44ce60b1f..69cbb1713 100644
--- a/drivers/smc91111.c
+++ b/drivers/smc91111.c
@@ -640,8 +640,15 @@ again:
}
/* we have a packet address, so tell the card to use it */
+#ifndef CONFIG_XAENIAX
SMC_outb (packet_no, PN_REG);
-
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl (packet_no << 16, 0);
+#endif
/* do not write new ptr value if Write data fifo not empty */
while ( saved_ptr & PTR_NOTEMPTY )
printf ("Write data fifo not empty!\n");
@@ -702,7 +709,9 @@ again:
/* release packet */
/* no need to release, MMU does that now */
- /* SMC_outw (MC_FREEPKT, MMU_CMD_REG); */
+#ifdef CONFIG_XAENIAX
+ SMC_outw (MC_FREEPKT, MMU_CMD_REG);
+#endif
/* wait for MMU getting ready (low) */
while (SMC_inw (MMU_CMD_REG) & MC_BUSY) {
@@ -722,7 +731,9 @@ again:
/* release packet */
/* no need to release, MMU does that now */
- /* SMC_outw (MC_FREEPKT, MMU_CMD_REG); */
+#ifdef CONFIG_XAENIAX
+ SMC_outw (MC_FREEPKT, MMU_CMD_REG);
+#endif
/* wait for MMU getting ready (low) */
while (SMC_inw (MMU_CMD_REG) & MC_BUSY) {
@@ -735,7 +746,15 @@ again:
}
/* restore previously saved registers */
+#ifndef CONFIG_XAENIAX
SMC_outb( saved_pnr, PN_REG );
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl(saved_pnr << 16, 0);
+#endif
SMC_outw( saved_ptr, PTR_REG );
return length;
@@ -913,7 +932,15 @@ static int smc_rcv()
udelay(1); /* Wait until not busy */
/* restore saved registers */
+#ifndef CONFIG_XAENIAX
SMC_outb( saved_pnr, PN_REG );
+#else
+ /* On Xaeniax board, we can't use SMC_outb here because that way
+ * the Allocate MMU command will end up written to the command register
+ * as well, which will lead to a problem.
+ */
+ SMC_outl( saved_pnr << 16, 0);
+#endif
SMC_outw( saved_ptr, PTR_REG );
if (!is_error) {
diff --git a/drivers/smc91111.h b/drivers/smc91111.h
index 0b6dfeb0d..cf08582fb 100644
--- a/drivers/smc91111.h
+++ b/drivers/smc91111.h
@@ -85,6 +85,19 @@ typedef unsigned long int dword;
if (__p & 2) __v >>= 8; \
else __v &= 0xff; \
__v; })
+#elif defined(CONFIG_XAENIAX)
+#define SMC_inl(r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
+#define SMC_inw(z) ({ \
+ unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (z)); \
+ unsigned int __v = *(volatile unsigned int *)((__p) & ~3); \
+ if (__p & 3) __v >>= 16; \
+ else __v &= 0xffff; \
+ __v; })
+#define SMC_inb(p) ({ \
+ unsigned int ___v = SMC_inw((p) & ~1); \
+ if (p & 1) ___v >>= 8; \
+ else ___v &= 0xff; \
+ ___v; })
#else
#define SMC_inl(r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))))
@@ -99,6 +112,15 @@ typedef unsigned long int dword;
#ifdef CONFIG_XSENGINE
#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r<<1))) = d)
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r<<1))) = d)
+#elif defined (CONFIG_XAENIAX)
+#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
+#define SMC_outw(d,p) ({ \
+ dword __dwo = SMC_inl((p) & ~3); \
+ dword __dwn = (word)(d); \
+ __dwo &= ((p) & 3) ? 0x0000ffff : 0xffff0000; \
+ __dwo |= ((p) & 3) ? __dwn << 16 : __dwn; \
+ SMC_outl(__dwo, (p) & ~3); \
+})
#else
#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
diff --git a/include/configs/xaeniax.h b/include/configs/xaeniax.h
index a7b695dda..9b8a59692 100644
--- a/include/configs/xaeniax.h
+++ b/include/configs/xaeniax.h
@@ -181,7 +181,7 @@
* SMSC91C111 Network Card
*/
#define CONFIG_DRIVER_SMC91111 1
-#define CONFIG_SMC91111_BASE 0x0C00030 /* chip select 3 */
+#define CONFIG_SMC91111_BASE 0x10000300 /* chip select 3 */
#define CONFIG_SMC_USE_32_BIT 1 /* 32 bit bus */
#undef CONFIG_SMC_91111_EXT_PHY /* we use internal phy */
#undef CONFIG_SHOW_ACTIVITY