diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_sh.c | 128 |
1 files changed, 73 insertions, 55 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index aa4ff35..0801ac4 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -26,6 +26,8 @@ #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 #else #error "Default SCIF doesn't set....." #endif @@ -36,17 +38,17 @@ #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 */ -# define SCFSR (vu_short *)(SCIF_BASE + 0x14) /* SCSSR */ +#ifdef CONFIG_CPU_SH7720 /* SH7720 specific */ +# define SCFSR (vu_short *)(SCIF_BASE + 0x14) /* SCSSR */ # define SCFTDR (vu_char *)(SCIF_BASE + 0x20) # define SCFRDR (vu_char *)(SCIF_BASE + 0x24) #else # define SCFTDR (vu_char *)(SCIF_BASE + 0xC) -# define SCFSR (vu_short *)(SCIF_BASE + 0x10) +# define SCFSR (vu_short *)(SCIF_BASE + 0x10) # define SCFRDR (vu_char *)(SCIF_BASE + 0x14) #endif -#if defined(CONFIG_CPU_SH7780) || \ +#if defined(CONFIG_CPU_SH7780) || \ defined(CONFIG_CPU_SH7785) # define SCRFDR (vu_short *)(SCIF_BASE + 0x20) # define SCSPTR (vu_short *)(SCIF_BASE + 0x24) @@ -54,20 +56,34 @@ # define SCRER (vu_short *)(SCIF_BASE + 0x2C) # define LSR_ORER 1 # define FIFOLEVEL_MASK 0xFF +#elif defined(CONFIG_CPU_SH7763) +# if defined (CONFIG_CONS_SCIF2) +# define SCSPTR (vu_short *)(SCIF_BASE + 0x20) +# define SCLSR (vu_short *)(SCIF_BASE + 0x24) +# define LSR_ORER 1 +# define FIFOLEVEL_MASK 0x1F +# else +# 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 +# define FIFOLEVEL_MASK 0xFF +# endif #elif defined(CONFIG_CPU_SH7750) || \ defined(CONFIG_CPU_SH7751) || \ defined(CONFIG_CPU_SH7722) # define SCSPTR (vu_short *)(SCIF_BASE + 0x20) -# define SCLSR (vu_short *)(SCIF_BASE + 0x24) +# define SCLSR (vu_short *)(SCIF_BASE + 0x24) # define LSR_ORER 1 # define FIFOLEVEL_MASK 0x1F #elif defined(CONFIG_CPU_SH7720) -# define SCLSR (vu_short *)(SCIF_BASE + 0x24) +# define SCLSR (vu_short *)(SCIF_BASE + 0x24) # define LSR_ORER 0x0200 # define FIFOLEVEL_MASK 0x1F -#elif defined(CONFIG_CPU_SH7710) +#elif defined(CONFIG_CPU_SH7710) || \ defined(CONFIG_CPU_SH7712) -# define SCLSR SCFSR /* SCSSR */ +# define SCLSR SCFSR /* SCSSR */ # define LSR_ORER 1 # define FIFOLEVEL_MASK 0x1F #endif @@ -75,34 +91,34 @@ /* SCBRR register value setting */ #if defined(CONFIG_CPU_SH7720) # define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) -#else /* Generic SuperH */ +#else /* Generic SuperH */ # define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) #endif -#define SCR_RE (1 << 4) -#define SCR_TE (1 << 5) -#define FCR_RFRST (1 << 1) /* RFCL */ -#define FCR_TFRST (1 << 2) /* TFCL */ -#define FSR_DR (1 << 0) -#define FSR_RDF (1 << 1) -#define FSR_FER (1 << 3) -#define FSR_BRK (1 << 4) -#define FSR_FER (1 << 3) -#define FSR_TEND (1 << 6) -#define FSR_ER (1 << 7) +#define SCR_RE (1 << 4) +#define SCR_TE (1 << 5) +#define FCR_RFRST (1 << 1) /* RFCL */ +#define FCR_TFRST (1 << 2) /* TFCL */ +#define FSR_DR (1 << 0) +#define FSR_RDF (1 << 1) +#define FSR_FER (1 << 3) +#define FSR_BRK (1 << 4) +#define FSR_FER (1 << 3) +#define FSR_TEND (1 << 6) +#define FSR_ER (1 << 7) /*----------------------------------------------------------------------*/ -void serial_setbrg (void) +void serial_setbrg(void) { DECLARE_GLOBAL_DATA_PTR; - *SCBRR = SCBRR_VALUE(gd->baudrate,CONFIG_SYS_CLK_FREQ); + *SCBRR = SCBRR_VALUE(gd->baudrate, CONFIG_SYS_CLK_FREQ); } -int serial_init (void) +int serial_init(void) { *SCSCR = (SCR_RE | SCR_TE); - *SCSMR = 0 ; + *SCSMR = 0; *SCSMR = 0; *SCFCR = (FCR_RFRST | FCR_TFRST); *SCFCR; @@ -112,21 +128,21 @@ int serial_init (void) return 0; } -static int serial_rx_fifo_level (void) +static int serial_rx_fifo_level(void) { -#if defined(CONFIG_SH4A) +#if defined(SCRFDR) return (*SCRFDR >> 0) & FIFOLEVEL_MASK; #else return (*SCFDR >> 0) & FIFOLEVEL_MASK; #endif } -void serial_raw_putc (const char c) +void serial_raw_putc(const char c) { unsigned int fsr_bits_to_clear; while (1) { - if (*SCFSR & FSR_TEND) { /* Tx fifo is empty */ + if (*SCFSR & FSR_TEND) { /* Tx fifo is empty */ fsr_bits_to_clear = FSR_TEND; break; } @@ -137,65 +153,67 @@ void serial_raw_putc (const char c) *SCFSR &= ~fsr_bits_to_clear; } -void serial_putc (const char c) +void serial_putc(const char c) { if (c == '\n') - serial_raw_putc ('\r'); - serial_raw_putc (c); + serial_raw_putc('\r'); + serial_raw_putc(c); } -void serial_puts (const char *s) +void serial_puts(const char *s) { char c; while ((c = *s++) != 0) - serial_putc (c); + serial_putc(c); } -int serial_tstc (void) +int serial_tstc(void) { - return serial_rx_fifo_level() ? 1 : 0; + return serial_rx_fifo_level()? 1 : 0; } -#define FSR_ERR_CLEAR 0x0063 -#define RDRF_CLEAR 0x00fc -void handle_error( void ){ +#define FSR_ERR_CLEAR 0x0063 +#define RDRF_CLEAR 0x00fc +void handle_error(void) +{ - (void)*SCFSR ; - *SCFSR = FSR_ERR_CLEAR ; - (void)*SCLSR ; - *SCLSR = 0x00 ; + (void)*SCFSR; + *SCFSR = FSR_ERR_CLEAR; + (void)*SCLSR; + *SCLSR = 0x00; } -int serial_getc_check( void ){ +int serial_getc_check(void) +{ unsigned short status; - status = *SCFSR ; + status = *SCFSR; - if (status & (FSR_FER | FSR_FER | FSR_ER | FSR_BRK)) + if (status & (FSR_FER | FSR_ER | FSR_BRK)) handle_error(); - if( *SCLSR & LSR_ORER ) + if (*SCLSR & LSR_ORER) handle_error(); - return (status & ( FSR_DR | FSR_RDF )); + return (status & (FSR_DR | FSR_RDF)); } -int serial_getc (void) +int serial_getc(void) { - unsigned short status ; + unsigned short status; char ch; - while(!serial_getc_check()); + while (!serial_getc_check()) ; ch = *SCFRDR; - status = *SCFSR ; + status = *SCFSR; - *SCFSR = RDRF_CLEAR ; + *SCFSR = RDRF_CLEAR; if (status & (FSR_FER | FSR_FER | FSR_ER | FSR_BRK)) handle_error(); - if( *SCLSR & LSR_ORER ) + if (*SCLSR & LSR_ORER) handle_error(); - return ch ; + return ch; } -#endif /* CFG_SCIF_CONSOLE */ +#endif /* CFG_SCIF_CONSOLE */ |