* BJD, 04-Nov-2004
*/
+#include <linux/config.h>
#if defined(CONFIG_SERIAL_S3C2410_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#define SUPPORT_SYSRQ
/* UART name and device definitions */
#define S3C24XX_SERIAL_NAME "ttySAC"
+#define S3C24XX_SERIAL_DEVFS "tts/"
#define S3C24XX_SERIAL_MAJOR 204
#define S3C24XX_SERIAL_MINOR 64
return "S3C2410";
case PORT_S3C2440:
return "S3C2440";
- case PORT_S3C2412:
- return "S3C2412";
default:
return NULL;
}
.nr = 3,
.cons = S3C24XX_SERIAL_CONSOLE,
.driver_name = S3C24XX_SERIAL_NAME,
+ .devfs_name = S3C24XX_SERIAL_DEVFS,
.major = S3C24XX_SERIAL_MAJOR,
.minor = S3C24XX_SERIAL_MINOR,
};
port->mapbase = res->start;
port->membase = S3C24XX_VA_UART + (res->start - S3C24XX_PA_UART);
port->irq = platform_get_irq(platdev, 0);
- if (port->irq < 0)
- port->irq = 0;
ourport->clk = clk_get(&platdev->dev, "uart");
#endif /* CONFIG_CPU_S3C2410 */
-#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
+#ifdef CONFIG_CPU_S3C2440
static int s3c2440_serial_setsource(struct uart_port *port,
struct s3c24xx_uart_clksrc *clk)
#define s3c2440_uart_inf_at NULL
#endif /* CONFIG_CPU_S3C2440 */
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
-
-static int s3c2412_serial_setsource(struct uart_port *port,
- struct s3c24xx_uart_clksrc *clk)
-{
- unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
- ucon &= ~S3C2412_UCON_CLKMASK;
-
- if (strcmp(clk->name, "uclk") == 0)
- ucon |= S3C2440_UCON_UCLK;
- else if (strcmp(clk->name, "pclk") == 0)
- ucon |= S3C2440_UCON_PCLK;
- else if (strcmp(clk->name, "usysclk") == 0)
- ucon |= S3C2412_UCON_USYSCLK;
- else {
- printk(KERN_ERR "unknown clock source %s\n", clk->name);
- return -EINVAL;
- }
-
- wr_regl(port, S3C2410_UCON, ucon);
- return 0;
-}
-
-
-static int s3c2412_serial_getsource(struct uart_port *port,
- struct s3c24xx_uart_clksrc *clk)
-{
- unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
- switch (ucon & S3C2412_UCON_CLKMASK) {
- case S3C2412_UCON_UCLK:
- clk->divisor = 1;
- clk->name = "uclk";
- break;
-
- case S3C2412_UCON_PCLK:
- case S3C2412_UCON_PCLK2:
- clk->divisor = 1;
- clk->name = "pclk";
- break;
-
- case S3C2412_UCON_USYSCLK:
- clk->divisor = 1;
- clk->name = "usysclk";
- break;
- }
-
- return 0;
-}
-
-static int s3c2412_serial_resetport(struct uart_port *port,
- struct s3c2410_uartcfg *cfg)
-{
- unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
- dbg("%s: port=%p (%08lx), cfg=%p\n",
- __FUNCTION__, port, port->mapbase, cfg);
-
- /* ensure we don't change the clock settings... */
-
- ucon &= S3C2412_UCON_CLKMASK;
-
- wr_regl(port, S3C2410_UCON, ucon | cfg->ucon);
- wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
- /* reset both fifos */
-
- wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
- wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
- return 0;
-}
-
-static struct s3c24xx_uart_info s3c2412_uart_inf = {
- .name = "Samsung S3C2412 UART",
- .type = PORT_S3C2412,
- .fifosize = 64,
- .rx_fifomask = S3C2440_UFSTAT_RXMASK,
- .rx_fifoshift = S3C2440_UFSTAT_RXSHIFT,
- .rx_fifofull = S3C2440_UFSTAT_RXFULL,
- .tx_fifofull = S3C2440_UFSTAT_TXFULL,
- .tx_fifomask = S3C2440_UFSTAT_TXMASK,
- .tx_fifoshift = S3C2440_UFSTAT_TXSHIFT,
- .get_clksrc = s3c2412_serial_getsource,
- .set_clksrc = s3c2412_serial_setsource,
- .reset_port = s3c2412_serial_resetport,
-};
-
-/* device management */
-
-static int s3c2412_serial_probe(struct platform_device *dev)
-{
- dbg("s3c2440_serial_probe: dev=%p\n", dev);
- return s3c24xx_serial_probe(dev, &s3c2412_uart_inf);
-}
-
-static struct platform_driver s3c2412_serial_drv = {
- .probe = s3c2412_serial_probe,
- .remove = s3c24xx_serial_remove,
- .suspend = s3c24xx_serial_suspend,
- .resume = s3c24xx_serial_resume,
- .driver = {
- .name = "s3c2412-uart",
- .owner = THIS_MODULE,
- },
-};
-
-
-static inline int s3c2412_serial_init(void)
-{
- return s3c24xx_serial_init(&s3c2412_serial_drv, &s3c2412_uart_inf);
-}
-
-static inline void s3c2412_serial_exit(void)
-{
- platform_driver_unregister(&s3c2412_serial_drv);
-}
-
-#define s3c2412_uart_inf_at &s3c2412_uart_inf
-#else
-
-static inline int s3c2412_serial_init(void)
-{
- return 0;
-}
-
-static inline void s3c2412_serial_exit(void)
-{
-}
-
-#define s3c2412_uart_inf_at NULL
-#endif /* CONFIG_CPU_S3C2440 */
-
-
/* module initialisation code */
static int __init s3c24xx_serial_modinit(void)
s3c2400_serial_init();
s3c2410_serial_init();
- s3c2412_serial_init();
s3c2440_serial_init();
return 0;
{
s3c2400_serial_exit();
s3c2410_serial_exit();
- s3c2412_serial_exit();
s3c2440_serial_exit();
uart_unregister_driver(&s3c24xx_uart_drv);
return (utrstat & S3C2410_UTRSTAT_TXE) ? 1 : 0;
}
-static void
-s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
-{
- unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
- while (!s3c24xx_serial_console_txrdy(port, ufcon))
- barrier();
- wr_regb(cons_uart, S3C2410_UTXH, ch);
-}
-
static void
s3c24xx_serial_console_write(struct console *co, const char *s,
unsigned int count)
{
- uart_console_write(cons_uart, s, count, s3c24xx_serial_console_putchar);
+ int i;
+ unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
+
+ for (i = 0; i < count; i++) {
+ while (!s3c24xx_serial_console_txrdy(cons_uart, ufcon))
+ barrier();
+
+ wr_regb(cons_uart, S3C2410_UTXH, s[i]);
+
+ if (s[i] == '\n') {
+ while (!s3c24xx_serial_console_txrdy(cons_uart, ufcon))
+ barrier();
+
+ wr_regb(cons_uart, S3C2410_UTXH, '\r');
+ }
+ }
}
static void __init
info = s3c2410_uart_inf_at;
} else if (strcmp(dev->name, "s3c2440-uart") == 0) {
info = s3c2440_uart_inf_at;
- } else if (strcmp(dev->name, "s3c2412-uart") == 0) {
- info = s3c2412_uart_inf_at;
} else {
printk(KERN_ERR "s3c24xx: no driver for %s\n", dev->name);
return 0;
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung S3C2410/S3C2440/S3C2412 Serial port driver");
+MODULE_DESCRIPTION("Samsung S3C2410/S3C2440 Serial port driver");
git://git.onelab.eu / linux-2.6.git / blobdiff