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-rw-r--r--arch/arm/mach-ks8695/board-og.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/board-og.c b/arch/arm/mach-ks8695/board-og.c
new file mode 100644
index 000000000000..1623ba461e47
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+++ b/arch/arm/mach-ks8695/board-og.c
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1/*
2 * board-og.c -- support for the OpenGear KS8695 based boards.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/kernel.h>
10#include <linux/types.h>
11#include <linux/interrupt.h>
12#include <linux/init.h>
13#include <linux/delay.h>
14#include <linux/platform_device.h>
15#include <linux/serial_8250.h>
16#include <linux/gpio.h>
17#include <linux/irq.h>
18#include <asm/mach-types.h>
19#include <asm/mach/arch.h>
20#include <asm/mach/map.h>
21#include <mach/devices.h>
22#include <mach/regs-gpio.h>
23#include <mach/gpio-ks8695.h>
24#include "generic.h"
25
26static int og_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
27{
28 if (machine_is_im4004() && (slot == 8))
29 return KS8695_IRQ_EXTERN1;
30 return KS8695_IRQ_EXTERN0;
31}
32
33static struct ks8695_pci_cfg __initdata og_pci = {
34 .mode = KS8695_MODE_PCI,
35 .map_irq = og_pci_map_irq,
36};
37
38static void __init og_register_pci(void)
39{
40 /* Initialize the GPIO lines for interrupt mode */
41 ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
42
43 /* Cardbus Slot */
44 if (machine_is_im4004())
45 ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_LOW);
46
47 ks8695_init_pci(&og_pci);
48}
49
50/*
51 * The PCI bus reset is driven by a dedicated GPIO line. Toggle it here
52 * and bring the PCI bus out of reset.
53 */
54static void __init og_pci_bus_reset(void)
55{
56 unsigned int rstline = 1;
57
58 /* Some boards use a different GPIO as the PCI reset line */
59 if (machine_is_im4004())
60 rstline = 2;
61 else if (machine_is_im42xx())
62 rstline = 0;
63
64 gpio_request(rstline, "PCI reset");
65 gpio_direction_output(rstline, 0);
66
67 /* Drive a reset on the PCI reset line */
68 gpio_set_value(rstline, 1);
69 gpio_set_value(rstline, 0);
70 mdelay(100);
71 gpio_set_value(rstline, 1);
72 mdelay(100);
73}
74
75/*
76 * Direct connect serial ports (non-PCI that is).
77 */
78#define S8250_PHYS 0x03800000
79#define S8250_VIRT 0xf4000000
80#define S8250_SIZE 0x00100000
81
82static struct __initdata map_desc og_io_desc[] = {
83 {
84 .virtual = S8250_VIRT,
85 .pfn = __phys_to_pfn(S8250_PHYS),
86 .length = S8250_SIZE,
87 .type = MT_DEVICE,
88 }
89};
90
91static struct resource og_uart_resources[] = {
92 {
93 .start = S8250_VIRT,
94 .end = S8250_VIRT + S8250_SIZE,
95 .flags = IORESOURCE_MEM
96 },
97};
98
99static struct plat_serial8250_port og_uart_data[] = {
100 {
101 .mapbase = S8250_VIRT,
102 .membase = (char *) S8250_VIRT,
103 .irq = 3,
104 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
105 .iotype = UPIO_MEM,
106 .regshift = 2,
107 .uartclk = 115200 * 16,
108 },
109 { },
110};
111
112static struct platform_device og_uart = {
113 .name = "serial8250",
114 .id = 0,
115 .dev.platform_data = og_uart_data,
116 .num_resources = 1,
117 .resource = og_uart_resources
118};
119
120static struct platform_device *og_devices[] __initdata = {
121 &og_uart
122};
123
124static void __init og_init(void)
125{
126 ks8695_register_gpios();
127
128 if (machine_is_cm4002()) {
129 ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_HIGH);
130 iotable_init(og_io_desc, ARRAY_SIZE(og_io_desc));
131 platform_add_devices(og_devices, ARRAY_SIZE(og_devices));
132 } else {
133 og_pci_bus_reset();
134 og_register_pci();
135 }
136
137 ks8695_add_device_lan();
138 ks8695_add_device_wan();
139}
140
141#ifdef CONFIG_MACH_CM4002
142MACHINE_START(CM4002, "OpenGear/CM4002")
143 /* OpenGear Inc. */
144 .atag_offset = 0x100,
145 .map_io = ks8695_map_io,
146 .init_irq = ks8695_init_irq,
147 .init_machine = og_init,
148 .timer = &ks8695_timer,
149 .restart = ks8695_restart,
150MACHINE_END
151#endif
152
153#ifdef CONFIG_MACH_CM4008
154MACHINE_START(CM4008, "OpenGear/CM4008")
155 /* OpenGear Inc. */
156 .atag_offset = 0x100,
157 .map_io = ks8695_map_io,
158 .init_irq = ks8695_init_irq,
159 .init_machine = og_init,
160 .timer = &ks8695_timer,
161 .restart = ks8695_restart,
162MACHINE_END
163#endif
164
165#ifdef CONFIG_MACH_CM41xx
166MACHINE_START(CM41XX, "OpenGear/CM41xx")
167 /* OpenGear Inc. */
168 .atag_offset = 0x100,
169 .map_io = ks8695_map_io,
170 .init_irq = ks8695_init_irq,
171 .init_machine = og_init,
172 .timer = &ks8695_timer,
173 .restart = ks8695_restart,
174MACHINE_END
175#endif
176
177#ifdef CONFIG_MACH_IM4004
178MACHINE_START(IM4004, "OpenGear/IM4004")
179 /* OpenGear Inc. */
180 .atag_offset = 0x100,
181 .map_io = ks8695_map_io,
182 .init_irq = ks8695_init_irq,
183 .init_machine = og_init,
184 .timer = &ks8695_timer,
185 .restart = ks8695_restart,
186MACHINE_END
187#endif
188
189#ifdef CONFIG_MACH_IM42xx
190MACHINE_START(IM42XX, "OpenGear/IM42xx")
191 /* OpenGear Inc. */
192 .atag_offset = 0x100,
193 .map_io = ks8695_map_io,
194 .init_irq = ks8695_init_irq,
195 .init_machine = og_init,
196 .timer = &ks8695_timer,
197 .restart = ks8695_restart,
198MACHINE_END
199#endif
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