| Yoichi Yuasa | fb82a3a | 2007-05-11 21:29:59 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Registration of Cobalt UART platform device. |
| 3 | * |
| 4 | * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> |
| 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> |
| 27 | |
| 28 | static struct resource cobalt_uart_resource[] __initdata = { |
| 29 | { |
| 30 | .start = 0x1c800000, |
| 31 | .end = 0x1c800007, |
| 32 | .flags = IORESOURCE_MEM, |
| 33 | }, |
| 34 | { |
| 35 | .start = COBALT_SERIAL_IRQ, |
| 36 | .end = COBALT_SERIAL_IRQ, |
| 37 | .flags = IORESOURCE_IRQ, |
| 38 | }, |
| 39 | }; |
| 40 | |
| 41 | static struct plat_serial8250_port cobalt_serial8250_port[] = { |
| 42 | { |
| 43 | .irq = COBALT_SERIAL_IRQ, |
| 44 | .uartclk = 18432000, |
| 45 | .iotype = UPIO_MEM, |
| 46 | .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, |
| 47 | .mapbase = 0x1c800000, |
| 48 | }, |
| 49 | {}, |
| 50 | }; |
| 51 | |
| 52 | static __init int cobalt_uart_add(void) |
| 53 | { |
| 54 | struct platform_device *pdev; |
| 55 | int retval; |
| 56 | |
| 57 | /* |
| 58 | * Cobalt Qube1 and RAQ1 have no UART. |
| 59 | */ |
| 60 | if (cobalt_board_id <= COBALT_BRD_ID_RAQ1) |
| 61 | return 0; |
| 62 | |
| 63 | pdev = platform_device_alloc("serial8250", -1); |
| 64 | if (!pdev) |
| 65 | return -ENOMEM; |
| 66 | |
| 67 | pdev->id = PLAT8250_DEV_PLATFORM; |
| 68 | pdev->dev.platform_data = cobalt_serial8250_port; |
| 69 | |
| 70 | retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource)); |
| 71 | if (retval) |
| 72 | goto err_free_device; |
| 73 | |
| 74 | retval = platform_device_add(pdev); |
| 75 | if (retval) |
| 76 | goto err_free_device; |
| 77 | |
| 78 | return 0; |
| 79 | |
| 80 | err_free_device: |
| 81 | platform_device_put(pdev); |
| 82 | |
| 83 | return retval; |
| 84 | } |
| 85 | device_initcall(cobalt_uart_add); |