diff options
| author | Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> | 2008-08-22 17:48:51 +0900 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2008-08-31 23:02:21 +0900 |
| commit | ab09f433b50bb83b5e440c335bc3839ee069e534 (patch) | |
| tree | 2c2d4a4860b3d94958858f3c2ab157d020242e88 /drivers/serial/serial_sh.c | |
| parent | c655fad06ba3fb042dbc667724a40e1a9a091248 (diff) | |
sh: add support Renesas SH7723
Renesas SH7723 has 5 SCIF, SD, Camera, LCDC and other.
This patch supports CPU register's header file and SCIF serial driver.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'drivers/serial/serial_sh.c')
| -rw-r--r-- | drivers/serial/serial_sh.c | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index 46600e6587..61c2b82c0a 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -20,14 +20,20 @@ #include <common.h> #include <asm/processor.h> -#if defined (CONFIG_CONS_SCIF0) -#define SCIF_BASE SCIF0_BASE -#elif defined (CONFIG_CONS_SCIF1) -#define SCIF_BASE SCIF1_BASE -#elif defined (CONFIG_CONS_SCIF2) -#define SCIF_BASE SCIF2_BASE +#if defined(CONFIG_CONS_SCIF0) +# define SCIF_BASE SCIF0_BASE +#elif defined(CONFIG_CONS_SCIF1) +# define SCIF_BASE SCIF1_BASE +#elif defined(CONFIG_CONS_SCIF2) +# define SCIF_BASE SCIF2_BASE +#elif defined(CONFIG_CONS_SCIF3) +# define SCIF_BASE SCIF3_BASE +#elif defined(CONFIG_CONS_SCIF4) +# define SCIF_BASE SCIF4_BASE +#elif defined(CONFIG_CONS_SCIF5) +# define SCIF_BASE SCIF5_BASE #else -#error "Default SCIF doesn't set....." +# error "Default SCIF doesn't set....." #endif /* Base register */ @@ -36,7 +42,8 @@ #define SCSCR (vu_short *)(SCIF_BASE + 0x8) #define SCFCR (vu_short *)(SCIF_BASE + 0x18) #define SCFDR (vu_short *)(SCIF_BASE + 0x1C) -#ifdef CONFIG_CPU_SH7720 /* SH7720 specific */ +#if defined(CONFIG_CPU_SH7720) || \ + (defined(CONFIG_CPU_SH7723) && defined(CONFIG_SCIF_A)) # define SCFSR (vu_short *)(SCIF_BASE + 0x14) /* SCSSR */ # define SCFTDR (vu_char *)(SCIF_BASE + 0x20) # define SCFRDR (vu_char *)(SCIF_BASE + 0x24) @@ -55,7 +62,7 @@ # define LSR_ORER 1 # define FIFOLEVEL_MASK 0xFF #elif defined(CONFIG_CPU_SH7763) -# if defined (CONFIG_CONS_SCIF2) +# if defined(CONFIG_CONS_SCIF2) # define SCSPTR (vu_short *)(SCIF_BASE + 0x20) # define SCLSR (vu_short *)(SCIF_BASE + 0x24) # define LSR_ORER 1 @@ -68,6 +75,16 @@ # define LSR_ORER 1 # define FIFOLEVEL_MASK 0xFF # endif +#elif defined(CONFIG_CPU_SH7723) +# if defined(CONIFG_SCIF_A) +# define SCLSR SCFSR +# define LSR_ORER 0x0200 +# define FIFOLEVEL_MASK 0x3F +#else +# define SCLSR (vu_short *)(SCIF_BASE + 0x24) +# define LSR_ORER 1 +# define FIFOLEVEL_MASK 0x1F +#endif #elif defined(CONFIG_CPU_SH7750) || \ defined(CONFIG_CPU_SH7751) || \ defined(CONFIG_CPU_SH7722) || \ @@ -90,6 +107,9 @@ /* SCBRR register value setting */ #if defined(CONFIG_CPU_SH7720) # define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) +#elif defined(CONFIG_CPU_SH7723) && defined(CONFIG_SCIF_A) +/* SH7723 SCIFA use bus clock. So clock *2 */ +# define SCBRR_VALUE(bps, clk) (((clk*2*2)+16*bps)/(32*bps)-1) #else /* Generic SuperH */ # define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) #endif @@ -168,7 +188,7 @@ void serial_puts(const char *s) int serial_tstc(void) { - return serial_rx_fifo_level()? 1 : 0; + return serial_rx_fifo_level() ? 1 : 0; } #define FSR_ERR_CLEAR 0x0063 @@ -192,14 +212,16 @@ int serial_getc_check(void) handle_error(); if (*SCLSR & LSR_ORER) handle_error(); - return (status & (FSR_DR | FSR_RDF)); + return status & (FSR_DR | FSR_RDF); } int serial_getc(void) { unsigned short status; char ch; - while (!serial_getc_check()) ; + + while (!serial_getc_check()) + ; ch = *SCFRDR; status = *SCFSR; |