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-rw-r--r--arch/mips/wrppmc/serial.c80
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
28static 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
41static 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
52static __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
75err_free_device:
76 platform_device_put(pdev);
77
78 return retval;
79}
80device_initcall(wrppmc_uart_add);