[U-Boot-Users] [PATCH] serial_sh: Add support for SH7720
Yoshihiro Shimoda
shimoda.yoshihiro at renesas.com
Mon Dec 3 14:58:47 CET 2007
Add support for SH7720 in serial_sh driver.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro at renesas.com>
CC: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
---
drivers/serial_sh.c | 26 ++++++++++++++++++++++++--
1 file changed, 24 insertions(+), 2 deletions(-)
--- a/drivers/serial_sh.c 2007-11-14 21:06:34.000000000 +0900
+++ b/drivers/serial_sh.c 2007-12-03 22:27:15.000000000 +0900
@@ -30,6 +30,17 @@
#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 (volatile unsigned short *)(SCIF_BASE + 0x0)
#define SCBRR (volatile unsigned char *)(SCIF_BASE + 0x4)
#define SCSCR (volatile unsigned short *)(SCIF_BASE + 0x8)
@@ -38,16 +49,21 @@
#define SCFRDR (volatile unsigned char *)(SCIF_BASE + 0x14)
#define SCFCR (volatile unsigned short *)(SCIF_BASE + 0x18)
#define SCFDR (volatile unsigned short *)(SCIF_BASE + 0x1C)
+#endif
+
#if defined(CONFIG_SH4A)
#define SCRFDR (volatile unsigned short *)(SCIF_BASE + 0x20)
#define SCSPTR (volatile unsigned short *)(SCIF_BASE + 0x24)
#define SCLSR (volatile unsigned short *)(SCIF_BASE + 0x28)
#define SCRER (volatile unsigned short *)(SCIF_BASE + 0x2C)
+#define LSR_ORER 1
#elif defined (CONFIG_SH4)
#define SCSPTR (volatile unsigned short *)(SCIF_BASE + 0x20)
#define SCLSR (volatile unsigned short *)(SCIF_BASE + 0x24)
+#define LSR_ORER 1
#elif defined (CONFIG_SH3)
-#define SCLSR (volatile unsigned short *)(SCIF_BASE + 0x24)
+#define SCLSR SCFSR /* SCSSR */
+#define LSR_ORER 0x0200
#endif
#define SCR_RE (1 << 4)
@@ -67,10 +83,17 @@
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)) /
(gd->baudrate * 32) - 1;
+#endif
}
int serial_init (void)
@@ -133,7 +156,6 @@ int serial_tstc (void)
#define FSR_ERR_CLEAR 0x0063
#define RDRF_CLEAR 0x00fc
-#define LSR_ORER 1
void handle_error( void ){
(void)*SCFSR ;
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