[U-Boot] [PATCH 1/3] serial: sh: Add support R8A7790

Nobuhiro Iwamatsu
2013-08-22T04:23:26Z

This adds the preset value to register, and setup of baudrate.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
---
drivers/serial/serial_sh.c | 1 +
drivers/serial/serial_sh.h | 13 +++++++++++++
2 files changed, 14 insertions(+)

diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 67cc0dc..0826d59 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -1,5 +1,6 @@
/*
* SuperH SCIF device driver.
+ * Copyright (C) 2013 Renesas Electronics Corporation
* Copyright (C) 2007,2008,2010 Nobuhiro Iwamatsu
* Copyright (C) 2002 - 2008 Paul Mundt
*
diff --git a/drivers/serial/serial_sh.h b/drivers/serial/serial_sh.h
index 7e38a3f..a6558af 100644
--- a/drivers/serial/serial_sh.h
+++ b/drivers/serial/serial_sh.h
@@ -224,6 +224,9 @@ struct uart_port {
# define SCSPTR3 0xffc60020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001 /* Overrun error bit */
# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+#elif defined(CONFIG_R8A7790)
+# define SCIF_ORER 0x0001
+# define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */
#else
# error CPU subtype not defined
#endif
@@ -298,6 +301,9 @@ struct uart_port {
/* SH7763 SCIF2 support */
# define SCIF2_RFDC_MASK 0x001f
# define SCIF2_TXROOM_MAX 16
+#elif defined(CONFIG_R8A7790)
+# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
+# define SCIF_RFDC_MASK 0x003f
#else
# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
# define SCIF_RFDC_MASK 0x001f
@@ -579,6 +585,10 @@ SCIF_FNS(SCSPTR, 0, 0, 0, 0)
#else
SCIF_FNS(SCSPTR, 0, 0, 0x20, 16)
#endif
+#if defined(CONFIG_R8A7790)
+SCIF_FNS(DL, 0, 0, 0x30, 16)
+SCIF_FNS(CKS, 0, 0, 0x34, 16)
+#endif
SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
#endif
#endif
@@ -720,6 +730,9 @@ static inline int scbrr_calc(struct uart_port port, int bps, int clk)
#define SCBRR_VALUE(bps, clk) scbrr_calc(sh_sci, bps, clk)
#elif defined(__H8300H__) || defined(__H8300S__)
#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
+#elif defined(CONFIG_R8A7790)
+#define SCBRR DL
+#define SCBRR_VALUE(bps, clk) (clk / bps / 16)
#else /* Generic SH */
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
#endif
--
1.8.3.2