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Commit | Line | Data |
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fb82a3a7 YY |
1 | /* |
2 | * Registration of Cobalt UART platform device. | |
3 | * | |
ada8e951 | 4 | * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> |
fb82a3a7 YY |
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 <cobalt.h> | |
d5ab1a69 | 27 | #include <irq.h> |
fb82a3a7 YY |
28 | |
29 | static struct resource cobalt_uart_resource[] __initdata = { | |
30 | { | |
31 | .start = 0x1c800000, | |
32 | .end = 0x1c800007, | |
33 | .flags = IORESOURCE_MEM, | |
34 | }, | |
35 | { | |
d5ab1a69 YY |
36 | .start = SERIAL_IRQ, |
37 | .end = SERIAL_IRQ, | |
fb82a3a7 YY |
38 | .flags = IORESOURCE_IRQ, |
39 | }, | |
40 | }; | |
41 | ||
42 | static struct plat_serial8250_port cobalt_serial8250_port[] = { | |
43 | { | |
d5ab1a69 | 44 | .irq = SERIAL_IRQ, |
fb82a3a7 YY |
45 | .uartclk = 18432000, |
46 | .iotype = UPIO_MEM, | |
47 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, | |
48 | .mapbase = 0x1c800000, | |
49 | }, | |
50 | {}, | |
51 | }; | |
52 | ||
53 | static __init int cobalt_uart_add(void) | |
54 | { | |
55 | struct platform_device *pdev; | |
56 | int retval; | |
57 | ||
58 | /* | |
ac1a236a | 59 | * Cobalt Qube1 has no UART. |
fb82a3a7 | 60 | */ |
ac1a236a | 61 | if (cobalt_board_id == COBALT_BRD_ID_QUBE1) |
fb82a3a7 YY |
62 | return 0; |
63 | ||
64 | pdev = platform_device_alloc("serial8250", -1); | |
65 | if (!pdev) | |
66 | return -ENOMEM; | |
67 | ||
68 | pdev->id = PLAT8250_DEV_PLATFORM; | |
69 | pdev->dev.platform_data = cobalt_serial8250_port; | |
70 | ||
71 | retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource)); | |
72 | if (retval) | |
73 | goto err_free_device; | |
74 | ||
75 | retval = platform_device_add(pdev); | |
76 | if (retval) | |
77 | goto err_free_device; | |
78 | ||
79 | return 0; | |
80 | ||
81 | err_free_device: | |
82 | platform_device_put(pdev); | |
83 | ||
84 | return retval; | |
85 | } | |
86 | device_initcall(cobalt_uart_add); |