diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8xx/serial.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xx/serial.c | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/serial.c b/arch/powerpc/cpu/mpc8xx/serial.c index 598ca2a..114dfe9 100644 --- a/arch/powerpc/cpu/mpc8xx/serial.c +++ b/arch/powerpc/cpu/mpc8xx/serial.c @@ -49,11 +49,11 @@ struct serialbuffer { static void serial_setdivisor(cpm8xx_t __iomem *cp) { - int divisor=(gd->cpu_clk + 8*gd->baudrate)/16/gd->baudrate; + int divisor = (gd->cpu_clk + 8 * gd->baudrate) / 16 / gd->baudrate; - if(divisor/16>0x1000) { + if (divisor / 16 > 0x1000) { /* bad divisor, assume 50MHz clock and 9600 baud */ - divisor=(50*1000*1000 + 8*9600)/16/9600; + divisor = (50 * 1000 * 1000 + 8 * 9600) / 16 / 9600; } #ifdef CONFIG_SYS_BRGCLK_PRESCALE @@ -72,7 +72,7 @@ static void serial_setdivisor(cpm8xx_t __iomem *cp) * as serial console interface. */ -static void smc_setbrg (void) +static void smc_setbrg(void) { immap_t __iomem *im = (immap_t __iomem *)CONFIG_SYS_IMMR; cpm8xx_t __iomem *cp = &(im->im_cpm); @@ -88,7 +88,7 @@ static void smc_setbrg (void) serial_setdivisor(cp); } -static int smc_init (void) +static int smc_init(void) { immap_t __iomem *im = (immap_t __iomem *)CONFIG_SYS_IMMR; smc_t __iomem *sp; @@ -161,7 +161,7 @@ static int smc_init (void) out_8(&sp->smc_smce, 0xff); /* Set up the baud rate generator */ - smc_setbrg (); + smc_setbrg(); /* Make the first buffer the only buffer. */ setbits_be16(&rtx->txbd.cbd_sc, BD_SC_WRAP); @@ -185,18 +185,17 @@ static int smc_init (void) /* Enable transmitter/receiver. */ setbits_be16(&sp->smc_smcmr, SMCMR_REN | SMCMR_TEN); - return (0); + return 0; } -static void -smc_putc(const char c) +static void smc_putc(const char c) { immap_t __iomem *im = (immap_t __iomem *)CONFIG_SYS_IMMR; cpm8xx_t __iomem *cpmp = &(im->im_cpm); struct serialbuffer __iomem *rtx; if (c == '\n') - smc_putc ('\r'); + smc_putc('\r'); rtx = (struct serialbuffer __iomem *)&cpmp->cp_dpmem[CPM_SERIAL_BASE]; @@ -206,19 +205,16 @@ smc_putc(const char c) setbits_be16(&rtx->txbd.cbd_sc, BD_SC_READY); while (in_be16(&rtx->txbd.cbd_sc) & BD_SC_READY) - WATCHDOG_RESET (); + WATCHDOG_RESET(); } -static void -smc_puts (const char *s) +static void smc_puts(const char *s) { - while (*s) { - smc_putc (*s++); - } + while (*s) + smc_putc(*s++); } -static int -smc_getc(void) +static int smc_getc(void) { immap_t __iomem *im = (immap_t __iomem *)CONFIG_SYS_IMMR; cpm8xx_t __iomem *cpmp = &(im->im_cpm); @@ -230,7 +226,7 @@ smc_getc(void) /* Wait for character to show up. */ while (in_be16(&rtx->rxbd.cbd_sc) & BD_SC_EMPTY) - WATCHDOG_RESET (); + WATCHDOG_RESET(); /* the characters are read one by one, * use the rxindex to know the next char to deliver @@ -245,11 +241,10 @@ smc_getc(void) setbits_be16(&rtx->rxbd.cbd_sc, BD_SC_EMPTY); } out_be32(&rtx->rxindex, rxindex); - return(c); + return c; } -static int -smc_tstc(void) +static int smc_tstc(void) { immap_t __iomem *im = (immap_t __iomem *)CONFIG_SYS_IMMR; cpm8xx_t __iomem *cpmp = &(im->im_cpm); @@ -260,8 +255,7 @@ smc_tstc(void) return !(in_be16(&rtx->rxbd.cbd_sc) & BD_SC_EMPTY); } -struct serial_device serial_smc_device = -{ +struct serial_device serial_smc_device = { .name = "serial_smc", .start = smc_init, .stop = NULL, |