[U-Boot] [PATCH] sh: Fix sh7264 clock speed and related serial setting

Phil Edworthy phil.edworthy at renesas.com
Mon Feb 13 13:03:50 CET 2012


The generalised calculation of the serial bit rate reg also applies
to sh7264, it was just the clock speed that was set incorrectly.

Signed-off-by: Phil Edworthy <phil.edworthy at renesas.com>
---
 drivers/serial/serial_sh.h |    2 --
 include/configs/rsk7264.h  |    2 +-
 2 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/serial/serial_sh.h b/drivers/serial/serial_sh.h
index 4e16e48..0b3e779 100644
--- a/drivers/serial/serial_sh.h
+++ b/drivers/serial/serial_sh.h
@@ -686,8 +686,6 @@ 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_CPU_SH7264)
-#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps))
 #else /* Generic SH */
 #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
 #endif
diff --git a/include/configs/rsk7264.h b/include/configs/rsk7264.h
index c1ffc34..af9524e 100644
--- a/include/configs/rsk7264.h
+++ b/include/configs/rsk7264.h
@@ -65,7 +65,7 @@
 #define CONFIG_ENV_SIZE		CONFIG_ENV_SECT_SIZE
 
 /* Board Clock */
-#define CONFIG_SYS_CLK_FREQ	33333333
+#define CONFIG_SYS_CLK_FREQ	36000000
 #define CMT_CLK_DIVIDER		32	/* 8 (default), 32, 128 or 512 */
 #define CONFIG_SYS_HZ		(CONFIG_SYS_CLK_FREQ / CMT_CLK_DIVIDER)
 
-- 
1.7.0.4



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