diff options
Diffstat (limited to 'drivers/tty/serial/s3c2412.c')
-rw-r--r-- | drivers/tty/serial/s3c2412.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/drivers/tty/serial/s3c2412.c b/drivers/tty/serial/s3c2412.c deleted file mode 100644 index 2234bf9..0000000 --- a/drivers/tty/serial/s3c2412.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Driver for Samsung S3C2412 and S3C2413 SoC onboard UARTs. - * - * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/io.h> -#include <linux/platform_device.h> -#include <linux/init.h> -#include <linux/serial_core.h> -#include <linux/serial.h> - -#include <asm/irq.h> -#include <mach/hardware.h> - -#include <plat/regs-serial.h> -#include <mach/regs-gpio.h> - -#include "samsung.h" - -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", - __func__, 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, - .has_divslot = 1, - .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_driver = { - .probe = s3c2412_serial_probe, - .remove = __devexit_p(s3c24xx_serial_remove), - .driver = { - .name = "s3c2412-uart", - .owner = THIS_MODULE, - }, -}; - -static inline int s3c2412_serial_init(void) -{ - return s3c24xx_serial_init(&s3c2412_serial_driver, &s3c2412_uart_inf); -} - -static inline void s3c2412_serial_exit(void) -{ - platform_driver_unregister(&s3c2412_serial_driver); -} - -module_init(s3c2412_serial_init); -module_exit(s3c2412_serial_exit); - -MODULE_DESCRIPTION("Samsung S3C2412,S3C2413 SoC Serial port driver"); -MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:s3c2412-uart"); |