diff options
Diffstat (limited to 'drivers/tty/serial/s5pv210.c')
| -rw-r--r-- | drivers/tty/serial/s5pv210.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/drivers/tty/serial/s5pv210.c b/drivers/tty/serial/s5pv210.c deleted file mode 100644 index 8b0b888a1b7..00000000000 --- a/drivers/tty/serial/s5pv210.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * Based on drivers/serial/s3c6400.c - * - * Driver for Samsung S5PV210 SoC UARTs. - * - * 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 <linux/delay.h> - -#include <asm/irq.h> -#include <mach/hardware.h> -#include <plat/regs-serial.h> -#include "samsung.h" - -static int s5pv210_serial_setsource(struct uart_port *port, - struct s3c24xx_uart_clksrc *clk) -{ - struct s3c2410_uartcfg *cfg = port->dev->platform_data; - unsigned long ucon = rd_regl(port, S3C2410_UCON); - - if (cfg->flags & NO_NEED_CHECK_CLKSRC) - return 0; - - if (strcmp(clk->name, "pclk") == 0) - ucon &= ~S5PV210_UCON_CLKMASK; - else if (strcmp(clk->name, "uclk1") == 0) - ucon |= S5PV210_UCON_CLKMASK; - else { - printk(KERN_ERR "unknown clock source %s\n", clk->name); - return -EINVAL; - } - - wr_regl(port, S3C2410_UCON, ucon); - return 0; -} - - -static int s5pv210_serial_getsource(struct uart_port *port, - struct s3c24xx_uart_clksrc *clk) -{ - struct s3c2410_uartcfg *cfg = port->dev->platform_data; - u32 ucon = rd_regl(port, S3C2410_UCON); - - clk->divisor = 1; - - if (cfg->flags & NO_NEED_CHECK_CLKSRC) - return 0; - - switch (ucon & S5PV210_UCON_CLKMASK) { - case S5PV210_UCON_PCLK: - clk->name = "pclk"; - break; - case S5PV210_UCON_UCLK: - clk->name = "uclk1"; - break; - } - - return 0; -} - -static int s5pv210_serial_resetport(struct uart_port *port, - struct s3c2410_uartcfg *cfg) -{ - unsigned long ucon = rd_regl(port, S3C2410_UCON); - - ucon &= S5PV210_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); - - /* It is need to delay When reset FIFO register */ - udelay(1); - - return 0; -} - -#define S5PV210_UART_DEFAULT_INFO(fifo_size) \ - .name = "Samsung S5PV210 UART0", \ - .type = PORT_S3C6400, \ - .fifosize = fifo_size, \ - .has_divslot = 1, \ - .rx_fifomask = S5PV210_UFSTAT_RXMASK, \ - .rx_fifoshift = S5PV210_UFSTAT_RXSHIFT, \ - .rx_fifofull = S5PV210_UFSTAT_RXFULL, \ - .tx_fifofull = S5PV210_UFSTAT_TXFULL, \ - .tx_fifomask = S5PV210_UFSTAT_TXMASK, \ - .tx_fifoshift = S5PV210_UFSTAT_TXSHIFT, \ - .get_clksrc = s5pv210_serial_getsource, \ - .set_clksrc = s5pv210_serial_setsource, \ - .reset_port = s5pv210_serial_resetport - -static struct s3c24xx_uart_info s5p_port_fifo256 = { - S5PV210_UART_DEFAULT_INFO(256), -}; - -static struct s3c24xx_uart_info s5p_port_fifo64 = { - S5PV210_UART_DEFAULT_INFO(64), -}; - -static struct s3c24xx_uart_info s5p_port_fifo16 = { - S5PV210_UART_DEFAULT_INFO(16), -}; - -static struct s3c24xx_uart_info *s5p_uart_inf[] = { - [0] = &s5p_port_fifo256, - [1] = &s5p_port_fifo64, - [2] = &s5p_port_fifo16, - [3] = &s5p_port_fifo16, -}; - -/* device management */ -static int s5p_serial_probe(struct platform_device *pdev) -{ - return s3c24xx_serial_probe(pdev, s5p_uart_inf[pdev->id]); -} - -static struct platform_driver s5p_serial_driver = { - .probe = s5p_serial_probe, - .remove = __devexit_p(s3c24xx_serial_remove), - .driver = { - .name = "s5pv210-uart", - .owner = THIS_MODULE, - }, -}; - -static int __init s5p_serial_init(void) -{ - return s3c24xx_serial_init(&s5p_serial_driver, *s5p_uart_inf); -} - -static void __exit s5p_serial_exit(void) -{ - platform_driver_unregister(&s5p_serial_driver); -} - -module_init(s5p_serial_init); -module_exit(s5p_serial_exit); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:s5pv210-uart"); -MODULE_DESCRIPTION("Samsung S5PV210 UART Driver support"); -MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>"); |