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author | H. Nikolaus Schaller <hns@goldelico.com> | 2011-01-11 17:31:17 +0100 |
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committer | H. Nikolaus Schaller <hns@goldelico.com> | 2011-01-11 17:31:17 +0100 |
commit | e1bbb64ec2ca8ddf1dec91ae1e08ef96ee53639a (patch) | |
tree | a1da223c1cfb33cf32d3a12347dda0c25babd93d /x-loader/drivers/serial.c | |
parent | 6494108fdc54f2bb285b3c4078d8965e89efaf95 (diff) | |
download | bootable_bootloader_goldelico_gta04_x-loader-e1bbb64ec2ca8ddf1dec91ae1e08ef96ee53639a.zip bootable_bootloader_goldelico_gta04_x-loader-e1bbb64ec2ca8ddf1dec91ae1e08ef96ee53639a.tar.gz bootable_bootloader_goldelico_gta04_x-loader-e1bbb64ec2ca8ddf1dec91ae1e08ef96ee53639a.tar.bz2 |
fixed issue with submodules
Diffstat (limited to 'x-loader/drivers/serial.c')
m--------- | x-loader | 0 | ||||
-rw-r--r-- | x-loader/drivers/serial.c | 119 |
2 files changed, 119 insertions, 0 deletions
diff --git a/x-loader b/x-loader deleted file mode 160000 -Subproject 1c9276af4d6a5b7014a7630a1abeddf3b317756 diff --git a/x-loader/drivers/serial.c b/x-loader/drivers/serial.c new file mode 100644 index 0000000..b9ecf2a --- /dev/null +++ b/x-loader/drivers/serial.c @@ -0,0 +1,119 @@ +/* + * (C) Copyright 2000 + * Rob Taylor, Flying Pig Systems. robt@flyingpig.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#ifdef CFG_PRINTF +#ifdef CFG_NS16550_SERIAL + +#include <ns16550.h> +#ifdef CFG_NS87308 +#include <ns87308.h> +#endif + +#if CONFIG_CONS_INDEX == 1 +static NS16550_t console = (NS16550_t) CFG_NS16550_COM1; +#elif CONFIG_CONS_INDEX == 2 +static NS16550_t console = (NS16550_t) CFG_NS16550_COM2; +#elif CONFIG_CONS_INDEX == 3 +static NS16550_t console = (NS16550_t) CFG_NS16550_COM3; +#elif CONFIG_CONS_INDEX == 4 +static NS16550_t console = (NS16550_t) CFG_NS16550_COM4; +#else +#error no valid console defined +#endif + +static int calc_divisor (void) +{ +// DECLARE_GLOBAL_DATA_PTR; +#ifdef CONFIG_OMAP1510 + /* If can't cleanly clock 115200 set div to 1 */ + if ((CFG_NS16550_CLK == 12000000) && (CONFIG_BAUDRATE == 115200)) { + console->osc_12m_sel = OSC_12M_SEL; /* enable 6.5 * divisor */ + return (1); /* return 1 for base divisor */ + } + console->osc_12m_sel = 0; /* clear if previsouly set */ +#endif +#if defined(CONFIG_OMAP1610) || defined(CONFIG_OMAP1710) + /* If can't cleanly clock 115200 set div to 1 */ + if ((CFG_NS16550_CLK == 48000000) && (CONFIG_BAUDRATE == 115200)) { + return (26); /* return 26 for base divisor */ + } +#endif + return (CFG_NS16550_CLK / 16 / CONFIG_BAUDRATE); +} + +int serial_init (void) +{ + int clock_divisor = calc_divisor(); + +#ifdef CFG_NS87308 + initialise_ns87308(); +#endif + + NS16550_init(console, clock_divisor); + + return (0); +} + +void +serial_putc(const char c) +{ + if (c == '\n') + NS16550_putc(console, '\r'); + + NS16550_putc(console, c); +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + + +int +serial_getc(void) +{ + return NS16550_getc(console); +} + +int +serial_tstc(void) +{ + return NS16550_tstc(console); +} + +void +serial_setbrg (void) +{ + int clock_divisor; + + clock_divisor = calc_divisor(); + NS16550_reinit(console, clock_divisor); +} + +#endif +#endif |