1 /*
2 * arch/arm/mach-ks8695/board-dsm320.c
3 *
4 * DSM-320 D-Link Wireless Media Player, board support.
5 *
6 * Copyright 2008 Simtec Electronics
7 * Daniel Silverstone <dsilvers@simtec.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13 #include <linux/gpio.h>
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/map.h>
22 #include <linux/mtd/physmap.h>
23 #include <linux/mtd/partitions.h>
24
25 #include <asm/mach-types.h>
26
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/irq.h>
30
31 #include <mach/devices.h>
32 #include <mach/gpio-ks8695.h>
33
34 #include "generic.h"
35
36 #ifdef CONFIG_PCI
dsm320_pci_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)37 static int dsm320_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
38 {
39 switch (slot) {
40 case 0:
41 /* PCI-AHB bridge? */
42 return KS8695_IRQ_EXTERN0;
43 case 18:
44 /* Mini PCI slot */
45 return KS8695_IRQ_EXTERN2;
46 case 20:
47 /* RealMAGIC chip */
48 return KS8695_IRQ_EXTERN0;
49 }
50 BUG();
51 }
52
53 static struct ks8695_pci_cfg __initdata dsm320_pci = {
54 .mode = KS8695_MODE_MINIPCI,
55 .map_irq = dsm320_pci_map_irq,
56 };
57
dsm320_register_pci(void)58 static void __init dsm320_register_pci(void)
59 {
60 /* Initialise the GPIO lines for interrupt mode */
61 /* RealMAGIC */
62 ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
63 /* MiniPCI Slot */
64 ks8695_gpio_interrupt(KS8695_GPIO_2, IRQ_TYPE_LEVEL_LOW);
65
66 ks8695_init_pci(&dsm320_pci);
67 }
68
69 #else
dsm320_register_pci(void)70 static inline void __init dsm320_register_pci(void) { }
71 #endif
72
73 static struct physmap_flash_data dsm320_nor_pdata = {
74 .width = 4,
75 .nr_parts = 0,
76 };
77
78 static struct resource dsm320_nor_resource[] = {
79 [0] = {
80 .start = SZ_32M, /* We expect the bootloader to map
81 * the flash here.
82 */
83 .end = SZ_32M + SZ_4M - 1,
84 .flags = IORESOURCE_MEM,
85 }
86 };
87
88 static struct platform_device dsm320_device_nor = {
89 .name = "physmap-flash",
90 .id = -1,
91 .num_resources = ARRAY_SIZE(dsm320_nor_resource),
92 .resource = dsm320_nor_resource,
93 .dev = {
94 .platform_data = &dsm320_nor_pdata,
95 },
96 };
97
dsm320_register_nor(void)98 void __init dsm320_register_nor(void)
99 {
100 int ret;
101
102 ret = platform_device_register(&dsm320_device_nor);
103 if (ret < 0)
104 printk(KERN_ERR "failed to register physmap-flash device\n");
105 }
106
dsm320_init(void)107 static void __init dsm320_init(void)
108 {
109 /* GPIO registration */
110 ks8695_register_gpios();
111
112 /* PCI registration */
113 dsm320_register_pci();
114
115 /* Network device */
116 ks8695_add_device_lan(); /* eth0 = LAN */
117
118 /* NOR devices */
119 dsm320_register_nor();
120 }
121
122 MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player")
123 /* Maintainer: Simtec Electronics. */
124 .atag_offset = 0x100,
125 .map_io = ks8695_map_io,
126 .init_irq = ks8695_init_irq,
127 .init_machine = dsm320_init,
128 .init_time = ks8695_timer_init,
129 .restart = ks8695_restart,
130 MACHINE_END
131