sh: Add support for SH7720 in serial_sh driver.

[u-boot] / drivers / serial / serial_sh.c

diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 78186326f0df2e90a84830c93a6cca7c57a14d5f..afba2d21b454ae5b1e9e2c3a9540f783736e7053 100644 (file)
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -1,7 +1,7 @@
 /*
  * SuperH SCIF device driver.
  * Copyright (c) 2007 Nobuhiro Iwamatsu
- * 
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -30,28 +30,44 @@
 #error "Default SCIF doesn't set....."
 #endif
 
+#if defined(CONFIG_SH3)
+/* There are SH7720's register */
+#define SCSMR  (volatile unsigned short *)(SCIF_BASE + 0x0)
+#define SCBRR  (volatile unsigned char  *)(SCIF_BASE + 0x4)
+#define SCSCR  (volatile unsigned short *)(SCIF_BASE + 0x8)
+#define SCFSR  (volatile unsigned short *)(SCIF_BASE + 0x14)   /* SCSSR */
+#define SCFCR  (volatile unsigned short *)(SCIF_BASE + 0x18)
+#define SCFDR  (volatile unsigned short *)(SCIF_BASE + 0x1C)
+#define SCFTDR (volatile unsigned char  *)(SCIF_BASE + 0x20)
+#define SCFRDR (volatile unsigned char  *)(SCIF_BASE + 0x24)
+#else
 #define SCSMR  (vu_short *)(SCIF_BASE + 0x0)
-#define SCBRR  (vu_char  *)(SCIF_BASE + 0x4) 
+#define SCBRR  (vu_char  *)(SCIF_BASE + 0x4)
 #define SCSCR  (vu_short *)(SCIF_BASE + 0x8)
 #define SCFTDR         (vu_char  *)(SCIF_BASE + 0xC)
 #define SCFSR  (vu_short *)(SCIF_BASE + 0x10)
 #define SCFRDR         (vu_char  *)(SCIF_BASE + 0x14)
 #define SCFCR  (vu_short *)(SCIF_BASE + 0x18)
 #define SCFDR  (vu_short *)(SCIF_BASE + 0x1C)
+#endif
+
 #if defined(CONFIG_SH4A)
 #define SCRFDR (vu_short *)(SCIF_BASE + 0x20)
 #define SCSPTR (vu_short *)(SCIF_BASE + 0x24)
 #define SCLSR   (vu_short *)(SCIF_BASE + 0x28)
 #define SCRER  (vu_short *)(SCIF_BASE + 0x2C)
+#define LSR_ORER       1
 #elif defined (CONFIG_SH4)
 #define SCSPTR         (vu_short *)(SCIF_BASE + 0x20)
 #define SCLSR  (vu_short *)(SCIF_BASE + 0x24)
+#define LSR_ORER       1
 #elif defined (CONFIG_SH3)
-#define SCLSR  (vu_short *)(SCIF_BASE + 0x24)
+#define SCLSR  SCFSR   /* SCSSR */
+#define LSR_ORER       0x0200
 #endif
 
 #define SCR_RE                 (1 << 4)
-#define SCR_TE                 (1 << 5) 
+#define SCR_TE                 (1 << 5)
 #define FCR_RFRST      (1 << 1) /* RFCL */
 #define FCR_TFRST      (1 << 2) /* TFCL */
 #define FSR_DR         (1 << 0)
@@ -67,10 +83,18 @@
 void serial_setbrg (void)
 {
        DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_CPU_SH7720)
+       int divisor = gd->baudrate * 16;
+
+       *SCBRR = (CONFIG_SYS_CLK_FREQ * 2 + (divisor / 2)) /
+                                               (gd->baudrate * 32) - 1;
+#else
        int divisor = gd->baudrate * 32;
 
-       *SCBRR = (CONFIG_SYS_CLK_FREQ + (divisor / 2)) / 
+       *SCBRR = (CONFIG_SYS_CLK_FREQ + (divisor / 2)) /
                                                (gd->baudrate * 32) - 1;
+#endif
 }
 
 int serial_init (void)
@@ -133,7 +157,6 @@ int serial_tstc (void)
 
 #define FSR_ERR_CLEAR   0x0063
 #define RDRF_CLEAR      0x00fc
-#define LSR_ORER        1
 void handle_error( void ){
 
        (void)*SCFSR ;