projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 44173fb2 YY |
1 | /* |
| 2 | * NEC VR4100 series GIU platform device. | |
| 3 | * | |
| 70342287 | 4 | * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> |
| 44173fb2 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> | |
| c72f4d61 | 22 | #include <linux/smp.h> |
| 44173fb2 YY |
23 | #include <linux/ioport.h> |
| 24 | #include <linux/platform_device.h> | |
| 25 | ||
| 26 | #include <asm/cpu.h> | |
| 27 | #include <asm/vr41xx/giu.h> | |
| 28 | #include <asm/vr41xx/irq.h> | |
| 29 | ||
| 30 | static struct resource giu_50pins_pullupdown_resource[] __initdata = { | |
| 31 | { | |
| 32 | .start = 0x0b000100, | |
| 33 | .end = 0x0b00011f, | |
| 34 | .flags = IORESOURCE_MEM, | |
| 35 | }, | |
| 36 | { | |
| 37 | .start = 0x0b0002e0, | |
| 38 | .end = 0x0b0002e3, | |
| 39 | .flags = IORESOURCE_MEM, | |
| 40 | }, | |
| 41 | { | |
| 42 | .start = GIUINT_IRQ, | |
| 43 | .end = GIUINT_IRQ, | |
| 44 | .flags = IORESOURCE_IRQ, | |
| 45 | }, | |
| 46 | }; | |
| 47 | ||
| 48 | static struct resource giu_36pins_resource[] __initdata = { | |
| 49 | { | |
| 50 | .start = 0x0f000140, | |
| 51 | .end = 0x0f00015f, | |
| 52 | .flags = IORESOURCE_MEM, | |
| 53 | }, | |
| 54 | { | |
| 55 | .start = GIUINT_IRQ, | |
| 56 | .end = GIUINT_IRQ, | |
| 57 | .flags = IORESOURCE_IRQ, | |
| 58 | }, | |
| 59 | }; | |
| 60 | ||
| 61 | static struct resource giu_48pins_resource[] __initdata = { | |
| 62 | { | |
| 63 | .start = 0x0f000140, | |
| 64 | .end = 0x0f000167, | |
| 65 | .flags = IORESOURCE_MEM, | |
| 66 | }, | |
| 67 | { | |
| 68 | .start = GIUINT_IRQ, | |
| 69 | .end = GIUINT_IRQ, | |
| 70 | .flags = IORESOURCE_IRQ, | |
| 71 | }, | |
| 72 | }; | |
| 73 | ||
| 74 | static int __init vr41xx_giu_add(void) | |
| 75 | { | |
| 76 | struct platform_device *pdev; | |
| 77 | struct resource *res; | |
| 78 | unsigned int num; | |
| 79 | int retval; | |
| 80 | ||
| 81 | pdev = platform_device_alloc("GIU", -1); | |
| 82 | if (!pdev) | |
| 83 | return -ENOMEM; | |
| 84 | ||
| 10cc3529 | 85 | switch (current_cpu_type()) { |
| 44173fb2 YY |
86 | case CPU_VR4111: |
| 87 | case CPU_VR4121: | |
| 88 | pdev->id = GPIO_50PINS_PULLUPDOWN; | |
| 89 | res = giu_50pins_pullupdown_resource; | |
| 90 | num = ARRAY_SIZE(giu_50pins_pullupdown_resource); | |
| 91 | break; | |
| 92 | case CPU_VR4122: | |
| 93 | case CPU_VR4131: | |
| 94 | pdev->id = GPIO_36PINS; | |
| 95 | res = giu_36pins_resource; | |
| 96 | num = ARRAY_SIZE(giu_36pins_resource); | |
| 97 | break; | |
| 98 | case CPU_VR4133: | |
| 99 | pdev->id = GPIO_48PINS_EDGE_SELECT; | |
| 100 | res = giu_48pins_resource; | |
| 101 | num = ARRAY_SIZE(giu_48pins_resource); | |
| 102 | break; | |
| 103 | default: | |
| 104 | retval = -ENODEV; | |
| 105 | goto err_free_device; | |
| 106 | } | |
| 107 | ||
| 108 | retval = platform_device_add_resources(pdev, res, num); | |
| 109 | if (retval) | |
| 110 | goto err_free_device; | |
| 111 | ||
| 112 | retval = platform_device_add(pdev); | |
| 113 | if (retval) | |
| 114 | goto err_free_device; | |
| 115 | ||
| 116 | return 0; | |
| 117 | ||
| 118 | err_free_device: | |
| 119 | platform_device_put(pdev); | |
| 120 | ||
| 121 | return retval; | |
| 122 | } | |
| 123 | device_initcall(vr41xx_giu_add); |