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1f21d2bd BM |
1 | /* |
2 | * Registration of Lasat UART platform device. | |
3 | * | |
70342287 | 4 | * Copyright (C) 2007 Brian Murphy <brian@murphy.dk> |
1f21d2bd BM |
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 St, 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 | ||
1f21d2bd BM |
26 | #include <asm/lasat/lasat.h> |
27 | #include <asm/lasat/serial.h> | |
28 | ||
29 | static struct resource lasat_serial_res[2] __initdata; | |
30 | ||
31 | static struct plat_serial8250_port lasat_serial8250_port[] = { | |
32 | { | |
33 | .iotype = UPIO_MEM, | |
34 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | | |
35 | UPF_SKIP_TEST, | |
36 | }, | |
37 | {}, | |
38 | }; | |
39 | ||
40 | static __init int lasat_uart_add(void) | |
41 | { | |
42 | struct platform_device *pdev; | |
43 | int retval; | |
44 | ||
45 | pdev = platform_device_alloc("serial8250", -1); | |
46 | if (!pdev) | |
47 | return -ENOMEM; | |
48 | ||
b27418aa | 49 | if (!IS_LASAT_200()) { |
1f21d2bd BM |
50 | lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100); |
51 | lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1; | |
52 | lasat_serial_res[0].flags = IORESOURCE_MEM; | |
53 | lasat_serial_res[1].start = LASATINT_UART_100; | |
54 | lasat_serial_res[1].end = LASATINT_UART_100; | |
55 | lasat_serial_res[1].flags = IORESOURCE_IRQ; | |
56 | ||
57 | lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_100; | |
58 | lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_100 * 16; | |
59 | lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_100; | |
60 | lasat_serial8250_port[0].irq = LASATINT_UART_100; | |
61 | } else { | |
62 | lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_200); | |
63 | lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_200 * 8 - 1; | |
64 | lasat_serial_res[0].flags = IORESOURCE_MEM; | |
65 | lasat_serial_res[1].start = LASATINT_UART_200; | |
66 | lasat_serial_res[1].end = LASATINT_UART_200; | |
67 | lasat_serial_res[1].flags = IORESOURCE_IRQ; | |
68 | ||
69 | lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_200; | |
70 | lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_200 * 16; | |
71 | lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_200; | |
72 | lasat_serial8250_port[0].irq = LASATINT_UART_200; | |
73 | } | |
74 | ||
75 | pdev->id = PLAT8250_DEV_PLATFORM; | |
76 | pdev->dev.platform_data = lasat_serial8250_port; | |
77 | ||
78 | retval = platform_device_add_resources(pdev, lasat_serial_res, ARRAY_SIZE(lasat_serial_res)); | |
79 | if (retval) | |
80 | goto err_free_device; | |
81 | ||
82 | retval = platform_device_add(pdev); | |
83 | if (retval) | |
84 | goto err_free_device; | |
85 | ||
86 | return 0; | |
87 | ||
88 | err_free_device: | |
89 | platform_device_put(pdev); | |
90 | ||
91 | return retval; | |
92 | } | |
93 | device_initcall(lasat_uart_add); |