Root/
1 | /* linux/drivers/serial/s3c240.c |
2 | * |
3 | * Driver for Samsung SoC onboard UARTs. |
4 | * |
5 | * Ben Dooks, Copyright (c) 2003-2005 Simtec Electronics |
6 | * http://armlinux.simtec.co.uk/ |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License version 2 as |
10 | * published by the Free Software Foundation. |
11 | */ |
12 | |
13 | #include <linux/module.h> |
14 | #include <linux/ioport.h> |
15 | #include <linux/io.h> |
16 | #include <linux/platform_device.h> |
17 | |
18 | #include <asm/irq.h> |
19 | |
20 | #include <mach/hardware.h> |
21 | |
22 | #include <plat/regs-serial.h> |
23 | #include <mach/regs-gpio.h> |
24 | |
25 | #include "samsung.h" |
26 | |
27 | static int s3c2400_serial_getsource(struct uart_port *port, |
28 | struct s3c24xx_uart_clksrc *clk) |
29 | { |
30 | clk->divisor = 1; |
31 | clk->name = "pclk"; |
32 | |
33 | return 0; |
34 | } |
35 | |
36 | static int s3c2400_serial_setsource(struct uart_port *port, |
37 | struct s3c24xx_uart_clksrc *clk) |
38 | { |
39 | return 0; |
40 | } |
41 | |
42 | static int s3c2400_serial_resetport(struct uart_port *port, |
43 | struct s3c2410_uartcfg *cfg) |
44 | { |
45 | dbg("s3c2400_serial_resetport: port=%p (%08lx), cfg=%p\n", |
46 | port, port->mapbase, cfg); |
47 | |
48 | wr_regl(port, S3C2410_UCON, cfg->ucon); |
49 | wr_regl(port, S3C2410_ULCON, cfg->ulcon); |
50 | |
51 | /* reset both fifos */ |
52 | |
53 | wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH); |
54 | wr_regl(port, S3C2410_UFCON, cfg->ufcon); |
55 | |
56 | return 0; |
57 | } |
58 | |
59 | static struct s3c24xx_uart_info s3c2400_uart_inf = { |
60 | .name = "Samsung S3C2400 UART", |
61 | .type = PORT_S3C2400, |
62 | .fifosize = 16, |
63 | .rx_fifomask = S3C2410_UFSTAT_RXMASK, |
64 | .rx_fifoshift = S3C2410_UFSTAT_RXSHIFT, |
65 | .rx_fifofull = S3C2410_UFSTAT_RXFULL, |
66 | .tx_fifofull = S3C2410_UFSTAT_TXFULL, |
67 | .tx_fifomask = S3C2410_UFSTAT_TXMASK, |
68 | .tx_fifoshift = S3C2410_UFSTAT_TXSHIFT, |
69 | .get_clksrc = s3c2400_serial_getsource, |
70 | .set_clksrc = s3c2400_serial_setsource, |
71 | .reset_port = s3c2400_serial_resetport, |
72 | }; |
73 | |
74 | static int s3c2400_serial_probe(struct platform_device *dev) |
75 | { |
76 | return s3c24xx_serial_probe(dev, &s3c2400_uart_inf); |
77 | } |
78 | |
79 | static struct platform_driver s3c2400_serial_driver = { |
80 | .probe = s3c2400_serial_probe, |
81 | .remove = __devexit_p(s3c24xx_serial_remove), |
82 | .driver = { |
83 | .name = "s3c2400-uart", |
84 | .owner = THIS_MODULE, |
85 | }, |
86 | }; |
87 | |
88 | s3c24xx_console_init(&s3c2400_serial_driver, &s3c2400_uart_inf); |
89 | |
90 | static inline int s3c2400_serial_init(void) |
91 | { |
92 | return s3c24xx_serial_init(&s3c2400_serial_driver, &s3c2400_uart_inf); |
93 | } |
94 | |
95 | static inline void s3c2400_serial_exit(void) |
96 | { |
97 | platform_driver_unregister(&s3c2400_serial_driver); |
98 | } |
99 | |
100 | module_init(s3c2400_serial_init); |
101 | module_exit(s3c2400_serial_exit); |
102 | |
103 | MODULE_LICENSE("GPL v2"); |
104 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); |
105 | MODULE_DESCRIPTION("Samsung S3C2400 SoC Serial port driver"); |
106 | MODULE_ALIAS("platform:s3c2400-uart"); |
107 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9