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| author | Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> | 2008-01-09 14:30:02 +0900 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2008-01-15 23:30:40 +0900 |
| commit | 7c10c57275901939a8ece4a9ef3e7ccb7c12a0ed (patch) | |
| tree | aee91a0d58ef7568d609ef89b4fa295c25a3888a /drivers | |
| parent | f9913a8ee71ff14fcfc1c7fd0e6912f897e69403 (diff) | |
| download | u-boot-imx-7c10c57275901939a8ece4a9ef3e7ccb7c12a0ed.zip u-boot-imx-7c10c57275901939a8ece4a9ef3e7ccb7c12a0ed.tar.gz u-boot-imx-7c10c57275901939a8ece4a9ef3e7ccb7c12a0ed.tar.bz2 | |
sh: Add support for SH7720 in serial_sh driver.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/serial_sh.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index ee44ba2..afba2d2 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -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 (vu_short *)(SCIF_BASE + 0x0) #define SCBRR (vu_char *)(SCIF_BASE + 0x4) #define SCSCR (vu_short *)(SCIF_BASE + 0x8) @@ -38,16 +49,21 @@ #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) @@ -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)) / (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 ; |