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-rw-r--r--board/esd/plu405/plu405.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/board/esd/plu405/plu405.c b/board/esd/plu405/plu405.c
index 61186a8..85057a2 100644
--- a/board/esd/plu405/plu405.c
+++ b/board/esd/plu405/plu405.c
@@ -104,6 +104,7 @@ int misc_init_r (void)
unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
unsigned char *dst;
+ unsigned char fctr;
ulong len = sizeof(fpgadata);
int status;
int index;
@@ -203,6 +204,15 @@ int misc_init_r (void)
out_8(duart0_mcr, 0x08);
out_8(duart1_mcr, 0x08);
+ /*
+ * Enable auto RS485 mode in 2nd external uart
+ */
+ out_8((void *)DUART1_BA + 3, 0xbf); /* write LCR */
+ fctr = in_8((void *)DUART1_BA + 1); /* read FCTR */
+ fctr |= 0x08; /* enable RS485 mode */
+ out_8((void *)DUART1_BA + 1, fctr); /* write FCTR */
+ out_8((void *)DUART1_BA + 3, 0); /* write LCR */
+
return (0);
}