mpc512x: add multi serial PSC support

Extend mpc512x serial driver to support multiple PSC ports.

Subsequent patches for PDM360NG board support make use of this
functionality by defining CONFIG_SERIAL_MULTI in the board config
file. Additionally the used PSC devices are specified by defining
e.g. CONFIG_SYS_PSC1, CONFIG_SYS_PSC4 and CONFIG_SYS_PSC6.

Support for PSC devices other than 1, 3, 4 and 6 is not added
by this patch because these aren't used currently. In the future
it can be easily added using DECLARE_PSC_SERIAL_FUNCTIONS(N) and
INIT_PSC_SERIAL_STRUCTURE(N) macros in cpu/mpc512x/serial.c.
Additionally you have to add code for registering added
devices in serial_initialize() in common/serial.c.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

1 files changed, 47 insertions, 45 deletions

diff --git a/arch/powerpc/include/asm/immap_512x.h b/arch/powerpc/include/asm/immap_512x.h
index 95350fd9b..8bce586b5 100644
--- a/arch/powerpc/include/asm/immap_512x.h
+++ b/arch/powerpc/include/asm/immap_512x.h
@@ -1116,66 +1116,68 @@ typedef struct fifoc512x {
  *
  * Overall size of FIFOC memory is not documented in the MPC5121e RM, but
  * tests indicate that it is 1024 words total.
+ *
+ * *_TX_SIZE and *_RX_SIZE is the number of 4-byte words for FIFO slice.
  */
-#define FIFOC_PSC0_TX_SIZE	0x0	/* number of 4-byte words for FIFO slice */
+#define FIFOC_PSC0_TX_SIZE	0x04
 #define FIFOC_PSC0_TX_ADDR	0x0
-#define FIFOC_PSC0_RX_SIZE	0x0
-#define FIFOC_PSC0_RX_ADDR	0x0
+#define FIFOC_PSC0_RX_SIZE	0x04
+#define FIFOC_PSC0_RX_ADDR	0x10
 
-#define FIFOC_PSC1_TX_SIZE	0x0
-#define FIFOC_PSC1_TX_ADDR	0x0
-#define FIFOC_PSC1_RX_SIZE	0x0
-#define FIFOC_PSC1_RX_ADDR	0x0
+#define FIFOC_PSC1_TX_SIZE	0x04
+#define FIFOC_PSC1_TX_ADDR	0x20
+#define FIFOC_PSC1_RX_SIZE	0x04
+#define FIFOC_PSC1_RX_ADDR	0x30
 
-#define FIFOC_PSC2_TX_SIZE	0x0
-#define FIFOC_PSC2_TX_ADDR	0x0
-#define FIFOC_PSC2_RX_SIZE	0x0
-#define FIFOC_PSC2_RX_ADDR	0x0
+#define FIFOC_PSC2_TX_SIZE	0x04
+#define FIFOC_PSC2_TX_ADDR	0x40
+#define FIFOC_PSC2_RX_SIZE	0x04
+#define FIFOC_PSC2_RX_ADDR	0x50
 
 #define FIFOC_PSC3_TX_SIZE	0x04
-#define FIFOC_PSC3_TX_ADDR	0x0
+#define FIFOC_PSC3_TX_ADDR	0x60
 #define FIFOC_PSC3_RX_SIZE	0x04
-#define FIFOC_PSC3_RX_ADDR	0x10
+#define FIFOC_PSC3_RX_ADDR	0x70
 
-#define FIFOC_PSC4_TX_SIZE	0x0
-#define FIFOC_PSC4_TX_ADDR	0x0
-#define FIFOC_PSC4_RX_SIZE	0x0
-#define FIFOC_PSC4_RX_ADDR	0x0
+#define FIFOC_PSC4_TX_SIZE	0x04
+#define FIFOC_PSC4_TX_ADDR	0x80
+#define FIFOC_PSC4_RX_SIZE	0x04
+#define FIFOC_PSC4_RX_ADDR	0x90
 
-#define FIFOC_PSC5_TX_SIZE	0x0
-#define FIFOC_PSC5_TX_ADDR	0x0
-#define FIFOC_PSC5_RX_SIZE	0x0
-#define FIFOC_PSC5_RX_ADDR	0x0
+#define FIFOC_PSC5_TX_SIZE	0x04
+#define FIFOC_PSC5_TX_ADDR	0xa0
+#define FIFOC_PSC5_RX_SIZE	0x04
+#define FIFOC_PSC5_RX_ADDR	0xb0
 
-#define FIFOC_PSC6_TX_SIZE	0x0
-#define FIFOC_PSC6_TX_ADDR	0x0
-#define FIFOC_PSC6_RX_SIZE	0x0
-#define FIFOC_PSC6_RX_ADDR	0x0
+#define FIFOC_PSC6_TX_SIZE	0x04
+#define FIFOC_PSC6_TX_ADDR	0xc0
+#define FIFOC_PSC6_RX_SIZE	0x04
+#define FIFOC_PSC6_RX_ADDR	0xd0
 
-#define FIFOC_PSC7_TX_SIZE	0x0
-#define FIFOC_PSC7_TX_ADDR	0x0
-#define FIFOC_PSC7_RX_SIZE	0x0
-#define FIFOC_PSC7_RX_ADDR	0x0
+#define FIFOC_PSC7_TX_SIZE	0x04
+#define FIFOC_PSC7_TX_ADDR	0xe0
+#define FIFOC_PSC7_RX_SIZE	0x04
+#define FIFOC_PSC7_RX_ADDR	0xf0
 
-#define FIFOC_PSC8_TX_SIZE	0x0
-#define FIFOC_PSC8_TX_ADDR	0x0
-#define FIFOC_PSC8_RX_SIZE	0x0
-#define FIFOC_PSC8_RX_ADDR	0x0
+#define FIFOC_PSC8_TX_SIZE	0x04
+#define FIFOC_PSC8_TX_ADDR	0x100
+#define FIFOC_PSC8_RX_SIZE	0x04
+#define FIFOC_PSC8_RX_ADDR	0x110
 
-#define FIFOC_PSC9_TX_SIZE	0x0
-#define FIFOC_PSC9_TX_ADDR	0x0
-#define FIFOC_PSC9_RX_SIZE	0x0
-#define FIFOC_PSC9_RX_ADDR	0x0
+#define FIFOC_PSC9_TX_SIZE	0x04
+#define FIFOC_PSC9_TX_ADDR	0x120
+#define FIFOC_PSC9_RX_SIZE	0x04
+#define FIFOC_PSC9_RX_ADDR	0x130
 
-#define FIFOC_PSC10_TX_SIZE	0x0
-#define FIFOC_PSC10_TX_ADDR	0x0
-#define FIFOC_PSC10_RX_SIZE	0x0
-#define FIFOC_PSC10_RX_ADDR	0x0
+#define FIFOC_PSC10_TX_SIZE	0x04
+#define FIFOC_PSC10_TX_ADDR	0x140
+#define FIFOC_PSC10_RX_SIZE	0x04
+#define FIFOC_PSC10_RX_ADDR	0x150
 
-#define FIFOC_PSC11_TX_SIZE	0x0
-#define FIFOC_PSC11_TX_ADDR	0x0
-#define FIFOC_PSC11_RX_SIZE	0x0
-#define FIFOC_PSC11_RX_ADDR	0x0
+#define FIFOC_PSC11_TX_SIZE	0x04
+#define FIFOC_PSC11_TX_ADDR	0x160
+#define FIFOC_PSC11_RX_SIZE	0x04
+#define FIFOC_PSC11_RX_ADDR	0x170
 
 /*
  * SATA