* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@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
- *
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <linux/compiler.h>
#include <asm/arch/s3c24x0_cpu.h>
DECLARE_GLOBAL_DATA_PTR;
#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
#endif
#include <asm/io.h>
-
-#if defined(CONFIG_SERIAL_MULTI)
#include <serial.h>
/* Multi serial device functions */
serial_puts_dev(port, s); \
}
-#define INIT_S3C_SERIAL_STRUCTURE(port, name, bus) { \
- name, \
- bus, \
- s3serial##port##_init, \
- NULL,\
- s3serial##port##_setbrg, \
- s3serial##port##_getc, \
- s3serial##port##_tstc, \
- s3serial##port##_putc, \
- s3serial##port##_puts, \
+#define INIT_S3C_SERIAL_STRUCTURE(port, __name) { \
+ .name = __name, \
+ .start = s3serial##port##_init, \
+ .stop = NULL, \
+ .setbrg = s3serial##port##_setbrg, \
+ .getc = s3serial##port##_getc, \
+ .tstc = s3serial##port##_tstc, \
+ .putc = s3serial##port##_putc, \
+ .puts = s3serial##port##_puts, \
}
-#endif /* CONFIG_SERIAL_MULTI */
-
#ifdef CONFIG_HWFLOW
static int hwflow;
#endif
-void _serial_setbrg(const int dev_index)
+static void _serial_setbrg(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
unsigned int reg = 0;
/* value is calculated so : (int)(PCLK/16./baudrate) -1 */
reg = get_PCLK() / (16 * gd->baudrate) - 1;
- writel(reg, &uart->UBRDIV);
+ writel(reg, &uart->ubrdiv);
for (i = 0; i < 100; i++)
/* Delay */ ;
}
-#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.
#endif
/* FIFO enable, Tx/Rx FIFO clear */
- writel(0x07, &uart->UFCON);
- writel(0x0, &uart->UMCON);
+ writel(0x07, &uart->ufcon);
+ writel(0x0, &uart->umcon);
/* Normal,No parity,1 stop,8 bit */
- writel(0x3, &uart->ULCON);
+ writel(0x3, &uart->ulcon);
/*
* tx=level,rx=edge,disable timeout int.,enable rx error int.,
* normal,interrupt or polling
*/
- writel(0x245, &uart->UCON);
+ writel(0x245, &uart->ucon);
#ifdef CONFIG_HWFLOW
- writel(0x1, &uart->UMCON); /* RTS up */
+ writel(0x1, &uart->umcon); /* 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)
- writel(0x10, &uart->UMCON);
+ writel(0x10, &uart->umcon);
#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)
+static int _serial_getc(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
- while (!(readl(&uart->UTRSTAT) & 0x1))
+ while (!(readl(&uart->utrstat) & 0x1))
/* wait for character to arrive */ ;
- return readb(&uart->URXH) & 0xff;
+ return readb(&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
int hwflow_onoff(int on)
/*
* Output a single byte to the serial port.
*/
-void _serial_putc(const char c, const int dev_index)
+static void _serial_putc(const char c, const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
#ifdef CONFIG_MODEM_SUPPORT
return;
#endif
- while (!(readl(&uart->UTRSTAT) & 0x2))
+ while (!(readl(&uart->utrstat) & 0x2))
/* wait for room in the tx FIFO */ ;
#ifdef CONFIG_HWFLOW
- while (hwflow && !(readl(&uart->UMSTAT) & 0x1))
+ while (hwflow && !(readl(&uart->umstat) & 0x1))
/* Wait for CTS up */ ;
#endif
- writeb(c, &uart->UTXH);
+ writeb(c, &uart->utxh);
/* 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)
+static int _serial_tstc(const int dev_index)
{
struct s3c24x0_uart *uart = s3c24x0_get_base_uart(dev_index);
- return readl(&uart->UTRSTAT) & 0x1;
+ return readl(&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)
+static 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");
+INIT_S3C_SERIAL_STRUCTURE(0, "s3ser0");
DECLARE_S3C_SERIAL_FUNCTIONS(1);
struct serial_device s3c24xx_serial1_device =
-INIT_S3C_SERIAL_STRUCTURE(1, "s3ser1", "S3UART2");
+INIT_S3C_SERIAL_STRUCTURE(1, "s3ser1");
DECLARE_S3C_SERIAL_FUNCTIONS(2);
struct serial_device s3c24xx_serial2_device =
-INIT_S3C_SERIAL_STRUCTURE(2, "s3ser2", "S3UART3");
-#endif /* CONFIG_SERIAL_MULTI */
+INIT_S3C_SERIAL_STRUCTURE(2, "s3ser2");
+
+__weak struct serial_device *default_serial_console(void)
+{
+#if defined(CONFIG_SERIAL1)
+ return &s3c24xx_serial0_device;
+#elif defined(CONFIG_SERIAL2)
+ return &s3c24xx_serial1_device;
+#elif defined(CONFIG_SERIAL3)
+ return &s3c24xx_serial2_device;
+#else
+#error "CONFIG_SERIAL? missing."
+#endif
+}
+
+void s3c24xx_serial_initialize(void)
+{
+ serial_register(&s3c24xx_serial0_device);
+ serial_register(&s3c24xx_serial1_device);
+ serial_register(&s3c24xx_serial2_device);
+}
projects / karo-tx-uboot.git / blobdiff