| Yoichi Yuasa | 44173fb | 2007-05-10 22:21:35 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * NEC VR4100 series GIU 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 | |
| 25 | #include <asm/cpu.h> |
| 26 | #include <asm/vr41xx/giu.h> |
| 27 | #include <asm/vr41xx/irq.h> |
| 28 | |
| 29 | static struct resource giu_50pins_pullupdown_resource[] __initdata = { |
| 30 | { |
| 31 | .start = 0x0b000100, |
| 32 | .end = 0x0b00011f, |
| 33 | .flags = IORESOURCE_MEM, |
| 34 | }, |
| 35 | { |
| 36 | .start = 0x0b0002e0, |
| 37 | .end = 0x0b0002e3, |
| 38 | .flags = IORESOURCE_MEM, |
| 39 | }, |
| 40 | { |
| 41 | .start = GIUINT_IRQ, |
| 42 | .end = GIUINT_IRQ, |
| 43 | .flags = IORESOURCE_IRQ, |
| 44 | }, |
| 45 | }; |
| 46 | |
| 47 | static struct resource giu_36pins_resource[] __initdata = { |
| 48 | { |
| 49 | .start = 0x0f000140, |
| 50 | .end = 0x0f00015f, |
| 51 | .flags = IORESOURCE_MEM, |
| 52 | }, |
| 53 | { |
| 54 | .start = GIUINT_IRQ, |
| 55 | .end = GIUINT_IRQ, |
| 56 | .flags = IORESOURCE_IRQ, |
| 57 | }, |
| 58 | }; |
| 59 | |
| 60 | static struct resource giu_48pins_resource[] __initdata = { |
| 61 | { |
| 62 | .start = 0x0f000140, |
| 63 | .end = 0x0f000167, |
| 64 | .flags = IORESOURCE_MEM, |
| 65 | }, |
| 66 | { |
| 67 | .start = GIUINT_IRQ, |
| 68 | .end = GIUINT_IRQ, |
| 69 | .flags = IORESOURCE_IRQ, |
| 70 | }, |
| 71 | }; |
| 72 | |
| 73 | static int __init vr41xx_giu_add(void) |
| 74 | { |
| 75 | struct platform_device *pdev; |
| 76 | struct resource *res; |
| 77 | unsigned int num; |
| 78 | int retval; |
| 79 | |
| 80 | pdev = platform_device_alloc("GIU", -1); |
| 81 | if (!pdev) |
| 82 | return -ENOMEM; |
| 83 | |
| 84 | switch (current_cpu_data.cputype) { |
| 85 | case CPU_VR4111: |
| 86 | case CPU_VR4121: |
| 87 | pdev->id = GPIO_50PINS_PULLUPDOWN; |
| 88 | res = giu_50pins_pullupdown_resource; |
| 89 | num = ARRAY_SIZE(giu_50pins_pullupdown_resource); |
| 90 | break; |
| 91 | case CPU_VR4122: |
| 92 | case CPU_VR4131: |
| 93 | pdev->id = GPIO_36PINS; |
| 94 | res = giu_36pins_resource; |
| 95 | num = ARRAY_SIZE(giu_36pins_resource); |
| 96 | break; |
| 97 | case CPU_VR4133: |
| 98 | pdev->id = GPIO_48PINS_EDGE_SELECT; |
| 99 | res = giu_48pins_resource; |
| 100 | num = ARRAY_SIZE(giu_48pins_resource); |
| 101 | break; |
| 102 | default: |
| 103 | retval = -ENODEV; |
| 104 | goto err_free_device; |
| 105 | } |
| 106 | |
| 107 | retval = platform_device_add_resources(pdev, res, num); |
| 108 | if (retval) |
| 109 | goto err_free_device; |
| 110 | |
| 111 | retval = platform_device_add(pdev); |
| 112 | if (retval) |
| 113 | goto err_free_device; |
| 114 | |
| 115 | return 0; |
| 116 | |
| 117 | err_free_device: |
| 118 | platform_device_put(pdev); |
| 119 | |
| 120 | return retval; |
| 121 | } |
| 122 | device_initcall(vr41xx_giu_add); |