diff options
Diffstat (limited to 'arch/mips/wrppmc/serial.c')
-rw-r--r-- | arch/mips/wrppmc/serial.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/arch/mips/wrppmc/serial.c b/arch/mips/wrppmc/serial.c new file mode 100644 index 000000000000..6f9d0858f596 --- /dev/null +++ b/arch/mips/wrppmc/serial.c | |||
@@ -0,0 +1,80 @@ | |||
1 | /* | ||
2 | * Registration of WRPPMC UART platform device. | ||
3 | * | ||
4 | * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
19 | */ | ||
20 | #include <linux/errno.h> | ||
21 | #include <linux/init.h> | ||
22 | #include <linux/ioport.h> | ||
23 | #include <linux/platform_device.h> | ||
24 | #include <linux/serial_8250.h> | ||
25 | |||
26 | #include <asm/gt64120.h> | ||
27 | |||
28 | static struct resource wrppmc_uart_resource[] __initdata = { | ||
29 | { | ||
30 | .start = WRPPMC_UART16550_BASE, | ||
31 | .end = WRPPMC_UART16550_BASE + 7, | ||
32 | .flags = IORESOURCE_MEM, | ||
33 | }, | ||
34 | { | ||
35 | .start = WRPPMC_UART16550_IRQ, | ||
36 | .end = WRPPMC_UART16550_IRQ, | ||
37 | .flags = IORESOURCE_IRQ, | ||
38 | }, | ||
39 | }; | ||
40 | |||
41 | static struct plat_serial8250_port wrppmc_serial8250_port[] = { | ||
42 | { | ||
43 | .irq = WRPPMC_UART16550_IRQ, | ||
44 | .uartclk = WRPPMC_UART16550_CLOCK, | ||
45 | .iotype = UPIO_MEM, | ||
46 | .flags = UPF_IOREMAP | UPF_SKIP_TEST, | ||
47 | .mapbase = WRPPMC_UART16550_BASE, | ||
48 | }, | ||
49 | {}, | ||
50 | }; | ||
51 | |||
52 | static __init int wrppmc_uart_add(void) | ||
53 | { | ||
54 | struct platform_device *pdev; | ||
55 | int retval; | ||
56 | |||
57 | pdev = platform_device_alloc("serial8250", -1); | ||
58 | if (!pdev) | ||
59 | return -ENOMEM; | ||
60 | |||
61 | pdev->id = PLAT8250_DEV_PLATFORM; | ||
62 | pdev->dev.platform_data = wrppmc_serial8250_port; | ||
63 | |||
64 | retval = platform_device_add_resources(pdev, wrppmc_uart_resource, | ||
65 | ARRAY_SIZE(wrppmc_uart_resource)); | ||
66 | if (retval) | ||
67 | goto err_free_device; | ||
68 | |||
69 | retval = platform_device_add(pdev); | ||
70 | if (retval) | ||
71 | goto err_free_device; | ||
72 | |||
73 | return 0; | ||
74 | |||
75 | err_free_device: | ||
76 | platform_device_put(pdev); | ||
77 | |||
78 | return retval; | ||
79 | } | ||
80 | device_initcall(wrppmc_uart_add); | ||