diff options
Diffstat (limited to 'cpu/mpc8260')
| -rw-r--r-- | cpu/mpc8260/serial_smc.c | 54 |
1 files changed, 18 insertions, 36 deletions
diff --git a/cpu/mpc8260/serial_smc.c b/cpu/mpc8260/serial_smc.c index 794d6b3..fbb3fb0 100644 --- a/cpu/mpc8260/serial_smc.c +++ b/cpu/mpc8260/serial_smc.c @@ -106,8 +106,7 @@ int serial_init (void) *(ushort *)(&im->im_dprambase[PROFF_SMC_BASE]) = PROFF_SMC; up = (smc_uart_t *)&im->im_dprambase[PROFF_SMC]; - /* Disable transmitter/receiver. - */ + /* Disable transmitter/receiver. */ sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */ @@ -132,8 +131,7 @@ int serial_init (void) rtx->txbd.cbd_bufaddr = (uint) &rtx->txbuf; rtx->txbd.cbd_sc = 0; - /* Set up the uart parameters in the parameter ram. - */ + /* Set up the uart parameters in the parameter ram. */ up->smc_rbase = dpaddr; up->smc_tbase = dpaddr+sizeof(cbd_t); up->smc_rfcr = CPMFCR_EB; @@ -147,8 +145,7 @@ int serial_init (void) */ sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; - /* Mask all interrupts and remove anything pending. - */ + /* Mask all interrupts and remove anything pending. */ sp->smc_smcm = 0; sp->smc_smce = 0xff; @@ -157,12 +154,10 @@ int serial_init (void) */ im->im_cpmux.cmx_smr = (im->im_cpmux.cmx_smr&~CMXSMR_MASK)|CMXSMR_VALUE; - /* Set up the baud rate generator. - */ + /* Set up the baud rate generator. */ serial_setbrg (); - /* Make the first buffer the only buffer. - */ + /* Make the first buffer the only buffer. */ rtx->txbd.cbd_sc |= BD_SC_WRAP; rtx->rxbd.cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; @@ -171,8 +166,7 @@ int serial_init (void) up->smc_maxidl = CONFIG_SYS_MAXIDLE; rtx->rxindex = 0; - /* Initialize Tx/Rx parameters. - */ + /* Initialize Tx/Rx parameters. */ while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ ; @@ -183,8 +177,7 @@ int serial_init (void) while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ ; - /* Enable transmitter/receiver. - */ + /* Enable transmitter/receiver. */ sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; return (0); @@ -243,8 +236,7 @@ serial_getc(void) rtx = (serialbuffer_t *)&im->im_dprambase[up->smc_rbase]; - /* Wait for character to show up. - */ + /* Wait for character to show up. */ while (rtx->rxbd.cbd_sc & BD_SC_EMPTY) ; @@ -332,8 +324,7 @@ kgdb_serial_init (void) *(ushort *)(&im->im_dprambase[KGDB_PROFF_SMC_BASE]) = KGDB_PROFF_SMC; up = (smc_uart_t *)&im->im_dprambase[KGDB_PROFF_SMC]; - /* Disable transmitter/receiver. - */ + /* Disable transmitter/receiver. */ sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN); /* NOTE: I/O port pins are set up via the iop_conf_tab[] table */ @@ -354,8 +345,7 @@ kgdb_serial_init (void) tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1; tbdf->cbd_sc = 0; - /* Set up the uart parameters in the parameter ram. - */ + /* Set up the uart parameters in the parameter ram. */ up->smc_rbase = dpaddr; up->smc_tbase = dpaddr+sizeof(cbd_t); up->smc_rfcr = CPMFCR_EB; @@ -369,8 +359,7 @@ kgdb_serial_init (void) */ sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART; - /* Mask all interrupts and remove anything pending. - */ + /* Mask all interrupts and remove anything pending. */ sp->smc_smcm = 0; sp->smc_smce = 0xff; @@ -380,8 +369,7 @@ kgdb_serial_init (void) im->im_cpmux.cmx_smr = (im->im_cpmux.cmx_smr & ~KGDB_CMXSMR_MASK) | KGDB_CMXSMR_VALUE; - /* Set up the baud rate generator. - */ + /* Set up the baud rate generator. */ #if defined(CONFIG_KGDB_USE_EXTC) m8260_cpm_extcbrg(brg_map[KGDB_SMC_INDEX], speed, CONFIG_KGDB_EXTC_RATE, CONFIG_KGDB_EXTC_PINSEL); @@ -389,18 +377,15 @@ kgdb_serial_init (void) m8260_cpm_setbrg(brg_map[KGDB_SMC_INDEX], speed); #endif - /* Make the first buffer the only buffer. - */ + /* Make the first buffer the only buffer. */ tbdf->cbd_sc |= BD_SC_WRAP; rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP; - /* Single character receive. - */ + /* Single character receive. */ up->smc_mrblr = 1; up->smc_maxidl = 0; - /* Initialize Tx/Rx parameters. - */ + /* Initialize Tx/Rx parameters. */ while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ ; @@ -411,8 +396,7 @@ kgdb_serial_init (void) while (cp->cp_cpcr & CPM_CR_FLG) /* wait if cp is busy */ ; - /* Enable transmitter/receiver. - */ + /* Enable transmitter/receiver. */ sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN; printf("SMC%d at %dbps ", CONFIG_KGDB_INDEX, speed); @@ -433,8 +417,7 @@ putDebugChar(const char c) tbdf = (cbd_t *)&im->im_dprambase[up->smc_tbase]; - /* Wait for last character to go. - */ + /* Wait for last character to go. */ buf = (char *)tbdf->cbd_bufaddr; while (tbdf->cbd_sc & BD_SC_READY) ; @@ -465,8 +448,7 @@ getDebugChar(void) rbdf = (cbd_t *)&im->im_dprambase[up->smc_rbase]; - /* Wait for character to show up. - */ + /* Wait for character to show up. */ buf = (unsigned char *)rbdf->cbd_bufaddr; while (rbdf->cbd_sc & BD_SC_EMPTY) ; |