powerpc/mpc5200: add rts/cts handling in PSC UART driver

Add RTS/CTS-support for the PSC of the MPC5200B. Tested with a Phytec
MPC5200B-IO.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 10 insertions, 1 deletions

diff --git a/arch/powerpc/include/asm/mpc52xx_psc.h b/arch/powerpc/include/asm/mpc52xx_psc.h
index 8917ed63056..a218da6bec7 100644
--- a/arch/powerpc/include/asm/mpc52xx_psc.h
+++ b/arch/powerpc/include/asm/mpc52xx_psc.h
@@ -68,12 +68,20 @@
 #define MPC52xx_PSC_IMR_ORERR           0x1000
 #define MPC52xx_PSC_IMR_IPC             0x8000
 
-/* PSC input port change bit */
+/* PSC input port change bits */
 #define MPC52xx_PSC_CTS                 0x01
 #define MPC52xx_PSC_DCD                 0x02
 #define MPC52xx_PSC_D_CTS               0x10
 #define MPC52xx_PSC_D_DCD               0x20
 
+/* PSC acr bits */
+#define MPC52xx_PSC_IEC_CTS             0x01
+#define MPC52xx_PSC_IEC_DCD             0x02
+
+/* PSC output port bits */
+#define MPC52xx_PSC_OP_RTS              0x01
+#define MPC52xx_PSC_OP_RES              0x02
+
 /* PSC mode fields */
 #define MPC52xx_PSC_MODE_5_BITS                 0x00
 #define MPC52xx_PSC_MODE_6_BITS                 0x01
@@ -91,6 +99,7 @@
 #define MPC52xx_PSC_MODE_ONE_STOP_5_BITS        0x00
 #define MPC52xx_PSC_MODE_ONE_STOP               0x07
 #define MPC52xx_PSC_MODE_TWO_STOP               0x0f
+#define MPC52xx_PSC_MODE_TXCTS                  0x10
 
 #define MPC52xx_PSC_RFNUM_MASK  0x01ff