[U-Boot] [PATCH] microblaze: usable uart16550 for big endian systems
Stephan Linz
linz at li-pro.net
Sat Nov 19 13:03:57 CET 2011
As a result of the commit 6833260 the uart16550 driver
is broken for Microblaze big endian systems, because of
the missing 3 byte offset. Other than as described, the
U-Boot BSP does not treat properly the 3 byte offset.
However, with the new 32 bit access to ns16550 registers
we can enable correct register access for Microblaze big
and little endian systems in the same manner.
Signed-off-by: Stephan Linz <linz at li-pro.net>
---
include/configs/microblaze-generic.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index 6b3fd76..cd3d2a1 100644
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -41,7 +41,12 @@
#elif XILINX_UART16550_BASEADDR
# define CONFIG_SYS_NS16550 1
# define CONFIG_SYS_NS16550_SERIAL
+# define CONFIG_SYS_NS16550_MEM32
+#if defined(__MICROBLAZEEL__)
# define CONFIG_SYS_NS16550_REG_SIZE -4
+#else
+# define CONFIG_SYS_NS16550_REG_SIZE 4
+#endif
# define CONFIG_CONS_INDEX 1
# define CONFIG_SYS_NS16550_COM1 \
(XILINX_UART16550_BASEADDR + 0x1000)
--
1.7.0.4
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