diff options
Diffstat (limited to 'cpu/arm920t/s3c24x0')
| -rw-r--r-- | cpu/arm920t/s3c24x0/Makefile | 3 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/serial.c | 304 |
2 files changed, 1 insertions, 306 deletions
diff --git a/cpu/arm920t/s3c24x0/Makefile b/cpu/arm920t/s3c24x0/Makefile index 6764920..8fd525e 100644 --- a/cpu/arm920t/s3c24x0/Makefile +++ b/cpu/arm920t/s3c24x0/Makefile @@ -25,8 +25,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = i2c.o interrupts.o serial.o speed.o \ - usb.o usb_ohci.o nand.o +COBJS = i2c.o interrupts.o speed.o usb.o usb_ohci.o nand.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/arm920t/s3c24x0/serial.c b/cpu/arm920t/s3c24x0/serial.c deleted file mode 100644 index 064b998..0000000 --- a/cpu/arm920t/s3c24x0/serial.c +++ /dev/null @@ -1,304 +0,0 @@ -/* - * (C) Copyright 2002 - * Gary Jennejohn, DENX Software Engineering, <gj@denx.de> - * - * 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> -#if defined(CONFIG_S3C2400) || defined (CONFIG_S3C2410) || defined (CONFIG_TRAB) - -#if defined(CONFIG_S3C2400) || defined(CONFIG_TRAB) -#include <s3c2400.h> -#elif defined(CONFIG_S3C2410) -#include <s3c2410.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_SERIAL1 -#define UART_NR S3C24X0_UART0 - -#elif defined(CONFIG_SERIAL2) -# if defined(CONFIG_TRAB) -# error "TRAB supports only CONFIG_SERIAL1" -# endif -#define UART_NR S3C24X0_UART1 - -#elif defined(CONFIG_SERIAL3) -# if defined(CONFIG_TRAB) -# #error "TRAB supports only CONFIG_SERIAL1" -# endif -#define UART_NR S3C24X0_UART2 - -#else -#error "Bad: you didn't configure serial ..." -#endif - -#if defined(CONFIG_SERIAL_MULTI) -#include <serial.h> - -/* Multi serial device functions */ -#define DECLARE_S3C_SERIAL_FUNCTIONS(port) \ - int s3serial##port##_init (void) {\ - return serial_init_dev(port);}\ - void s3serial##port##_setbrg (void) {\ - serial_setbrg_dev(port);}\ - int s3serial##port##_getc (void) {\ - return serial_getc_dev(port);}\ - int s3serial##port##_tstc (void) {\ - return serial_tstc_dev(port);}\ - void s3serial##port##_putc (const char c) {\ - serial_putc_dev(port, c);}\ - void s3serial##port##_puts (const char *s) {\ - serial_puts_dev(port, s);} - -#define INIT_S3C_SERIAL_STRUCTURE(port,name,bus) {\ - name,\ - bus,\ - s3serial##port##_init,\ - s3serial##port##_setbrg,\ - s3serial##port##_getc,\ - s3serial##port##_tstc,\ - s3serial##port##_putc,\ - s3serial##port##_puts, } - -#endif /* CONFIG_SERIAL_MULTI */ - -void _serial_setbrg(const int dev_index) -{ - S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index); - unsigned int reg = 0; - int i; - - /* value is calculated so : (int)(PCLK/16./baudrate) -1 */ - reg = get_PCLK() / (16 * gd->baudrate) - 1; - - uart->UBRDIV = reg; - for (i = 0; i < 100; i++); -} -#if defined(CONFIG_SERIAL_MULTI) -static inline void -serial_setbrg_dev(unsigned int dev_index) -{ - _serial_setbrg(dev_index); -} -#else -void serial_setbrg(void) -{ - _serial_setbrg(UART_NR); -} -#endif - - -/* Initialise the serial port. The settings are always 8 data bits, no parity, - * 1 stop bit, no start bits. - */ -static int serial_init_dev(const int dev_index) -{ - S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index); - - /* FIFO enable, Tx/Rx FIFO clear */ - uart->UFCON = 0x07; - uart->UMCON = 0x0; - - /* Normal,No parity,1 stop,8 bit */ - uart->ULCON = 0x3; - /* - * tx=level,rx=edge,disable timeout int.,enable rx error int., - * normal,interrupt or polling - */ - uart->UCON = 0x245; - -#ifdef CONFIG_HWFLOW - uart->UMCON = 0x1; /* RTS up */ -#endif - - /* FIXME: This is sooooooooooooooooooo ugly */ -#if defined(CONFIG_ARCH_GTA02_v1) || defined(CONFIG_ARCH_GTA02_v2) - /* we need auto hw flow control on the gsm and gps port */ - if (dev_index == 0 || dev_index == 1) - uart->UMCON = 0x10; -#endif - _serial_setbrg(dev_index); - - return (0); -} - -#if !defined(CONFIG_SERIAL_MULTI) -/* Initialise the serial port. The settings are always 8 data bits, no parity, - * 1 stop bit, no start bits. - */ -int serial_init (void) -{ - return serial_init_dev(UART_NR); -} -#endif - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -int _serial_getc (const int dev_index) -{ - S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index); - - /* wait for character to arrive */ - while (!(uart->UTRSTAT & 0x1)); - - return uart->URXH & 0xff; -} -#if defined(CONFIG_SERIAL_MULTI) -static inline int serial_getc_dev(unsigned int dev_index) -{ - return _serial_getc(dev_index); -} -#else -int serial_getc (void) -{ - return _serial_getc(UART_NR); -} -#endif - -#ifdef CONFIG_HWFLOW -static int hwflow = 0; /* turned off by default */ -int hwflow_onoff(int on) -{ - switch(on) { - case 0: - default: - break; /* return current */ - case 1: - hwflow = 1; /* turn on */ - break; - case -1: - hwflow = 0; /* turn off */ - break; - } - return hwflow; -} -#endif - -#ifdef CONFIG_MODEM_SUPPORT -static int be_quiet = 0; -void disable_putc(void) -{ - be_quiet = 1; -} - -void enable_putc(void) -{ - be_quiet = 0; -} -#endif - - -/* - * Output a single byte to the serial port. - */ -void _serial_putc (const char c, const int dev_index) -{ - S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index); -#ifdef CONFIG_MODEM_SUPPORT - if (be_quiet) - return; -#endif - - /* wait for room in the tx FIFO */ - while (!(uart->UTRSTAT & 0x2)); - -#ifdef CONFIG_HWFLOW - /* Wait for CTS up */ - while(hwflow && !(uart->UMSTAT & 0x1)) - ; -#endif - - uart->UTXH = c; - - /* If \n, also do \r */ - if (c == '\n') - serial_putc ('\r'); -} -#if defined(CONFIG_SERIAL_MULTI) -static inline void serial_putc_dev(unsigned int dev_index, const char c) -{ - _serial_putc(c, dev_index); -} -#else -void serial_putc(const char c) -{ - _serial_putc(c, UART_NR); -} -#endif - - -/* - * Test whether a character is in the RX buffer - */ -int _serial_tstc(const int dev_index) -{ - S3C24X0_UART * const uart = S3C24X0_GetBase_UART(dev_index); - - return uart->UTRSTAT & 0x1; -} -#if defined(CONFIG_SERIAL_MULTI) -static inline int -serial_tstc_dev(unsigned int dev_index) -{ - return _serial_tstc(dev_index); -} -#else -int serial_tstc(void) -{ - return _serial_tstc(UART_NR); -} -#endif - -void _serial_puts(const char *s, const int dev_index) -{ - while (*s) { - _serial_putc (*s++, dev_index); - } -} -#if defined(CONFIG_SERIAL_MULTI) -static inline void -serial_puts_dev(int dev_index, const char *s) -{ - _serial_puts(s, dev_index); -} -#else -void -serial_puts (const char *s) -{ - _serial_puts(s, UART_NR); -} -#endif - -#if defined(CONFIG_SERIAL_MULTI) -DECLARE_S3C_SERIAL_FUNCTIONS(0); -struct serial_device s3c24xx_serial0_device = - INIT_S3C_SERIAL_STRUCTURE(0, "s3ser0", "S3UART1"); -DECLARE_S3C_SERIAL_FUNCTIONS(1); -struct serial_device s3c24xx_serial1_device = - INIT_S3C_SERIAL_STRUCTURE(1, "s3ser1", "S3UART2"); -DECLARE_S3C_SERIAL_FUNCTIONS(2); -struct serial_device s3c24xx_serial2_device = - INIT_S3C_SERIAL_STRUCTURE(2, "s3ser2", "S3UART3"); - -#endif /* CONFIG_SERIAL_MULTI */ - -#endif /* defined(CONFIG_S3C2400) || defined (CONFIG_S3C2410) || defined (CONFIG_TRAB) */ |