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c680b77e LB |
1 | /* |
2 | * arch/arm/mach-iop32x/iq80321.c | |
3 | * | |
4 | * Board support code for the Intel IQ80321 platform. | |
5 | * | |
6 | * Author: Rory Bolt <rorybolt@pacbell.net> | |
7 | * Copyright (C) 2002 Rory Bolt | |
8 | * Copyright (C) 2004 Intel Corp. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | */ | |
15 | ||
16 | #include <linux/mm.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/pci.h> | |
20 | #include <linux/string.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/serial_core.h> | |
23 | #include <linux/serial_8250.h> | |
24 | #include <linux/mtd/physmap.h> | |
25 | #include <linux/platform_device.h> | |
26 | #include <asm/hardware.h> | |
27 | #include <asm/io.h> | |
28 | #include <asm/irq.h> | |
29 | #include <asm/mach/arch.h> | |
30 | #include <asm/mach/map.h> | |
31 | #include <asm/mach/pci.h> | |
32 | #include <asm/mach/time.h> | |
33 | #include <asm/mach-types.h> | |
34 | #include <asm/page.h> | |
35 | #include <asm/pgtable.h> | |
3668b45d | 36 | #include <asm/arch/time.h> |
c680b77e LB |
37 | |
38 | /* | |
39 | * IQ80321 timer tick configuration. | |
40 | */ | |
41 | static void __init iq80321_timer_init(void) | |
42 | { | |
43 | /* 33.333 MHz crystal. */ | |
3668b45d | 44 | iop_init_time(200000000); |
c680b77e LB |
45 | } |
46 | ||
47 | static struct sys_timer iq80321_timer = { | |
48 | .init = iq80321_timer_init, | |
3668b45d | 49 | .offset = iop_gettimeoffset, |
c680b77e LB |
50 | }; |
51 | ||
52 | ||
53 | /* | |
54 | * IQ80321 I/O. | |
55 | */ | |
56 | static struct map_desc iq80321_io_desc[] __initdata = { | |
57 | { /* on-board devices */ | |
58 | .virtual = IQ80321_UART, | |
59 | .pfn = __phys_to_pfn(IQ80321_UART), | |
60 | .length = 0x00100000, | |
61 | .type = MT_DEVICE, | |
62 | }, | |
63 | }; | |
64 | ||
65 | void __init iq80321_map_io(void) | |
66 | { | |
67 | iop3xx_map_io(); | |
68 | iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc)); | |
69 | } | |
70 | ||
71 | ||
72 | /* | |
73 | * IQ80321 PCI. | |
74 | */ | |
75 | static inline int __init | |
76 | iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
77 | { | |
78 | int irq; | |
79 | ||
80 | if ((slot == 2 || slot == 6) && pin == 1) { | |
81 | /* PCI-X Slot INTA */ | |
c852ac80 | 82 | irq = IRQ_IOP32X_XINT2; |
c680b77e LB |
83 | } else if ((slot == 2 || slot == 6) && pin == 2) { |
84 | /* PCI-X Slot INTA */ | |
c852ac80 | 85 | irq = IRQ_IOP32X_XINT3; |
c680b77e LB |
86 | } else if ((slot == 2 || slot == 6) && pin == 3) { |
87 | /* PCI-X Slot INTA */ | |
c852ac80 | 88 | irq = IRQ_IOP32X_XINT0; |
c680b77e LB |
89 | } else if ((slot == 2 || slot == 6) && pin == 4) { |
90 | /* PCI-X Slot INTA */ | |
c852ac80 | 91 | irq = IRQ_IOP32X_XINT1; |
c680b77e LB |
92 | } else if (slot == 4 || slot == 8) { |
93 | /* Gig-E */ | |
c852ac80 | 94 | irq = IRQ_IOP32X_XINT0; |
c680b77e LB |
95 | } else { |
96 | printk(KERN_ERR "iq80321_pci_map_irq() called for unknown " | |
97 | "device PCI:%d:%d:%d\n", dev->bus->number, | |
98 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); | |
99 | irq = -1; | |
100 | } | |
101 | ||
102 | return irq; | |
103 | } | |
104 | ||
105 | static struct hw_pci iq80321_pci __initdata = { | |
106 | .swizzle = pci_std_swizzle, | |
107 | .nr_controllers = 1, | |
108 | .setup = iop3xx_pci_setup, | |
109 | .preinit = iop3xx_pci_preinit, | |
110 | .scan = iop3xx_pci_scan_bus, | |
111 | .map_irq = iq80321_pci_map_irq, | |
112 | }; | |
113 | ||
114 | static int __init iq80321_pci_init(void) | |
115 | { | |
116 | if (machine_is_iq80321()) | |
117 | pci_common_init(&iq80321_pci); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
122 | subsys_initcall(iq80321_pci_init); | |
123 | ||
124 | ||
125 | /* | |
126 | * IQ80321 machine initialisation. | |
127 | */ | |
128 | static struct physmap_flash_data iq80321_flash_data = { | |
129 | .width = 1, | |
130 | }; | |
131 | ||
132 | static struct resource iq80321_flash_resource = { | |
133 | .start = 0xf0000000, | |
134 | .end = 0xf07fffff, | |
135 | .flags = IORESOURCE_MEM, | |
136 | }; | |
137 | ||
138 | static struct platform_device iq80321_flash_device = { | |
139 | .name = "physmap-flash", | |
140 | .id = 0, | |
141 | .dev = { | |
142 | .platform_data = &iq80321_flash_data, | |
143 | }, | |
144 | .num_resources = 1, | |
145 | .resource = &iq80321_flash_resource, | |
146 | }; | |
147 | ||
148 | static struct plat_serial8250_port iq80321_serial_port[] = { | |
149 | { | |
150 | .mapbase = IQ80321_UART, | |
151 | .membase = (char *)IQ80321_UART, | |
c852ac80 | 152 | .irq = IRQ_IOP32X_XINT1, |
c680b77e LB |
153 | .flags = UPF_SKIP_TEST, |
154 | .iotype = UPIO_MEM, | |
155 | .regshift = 0, | |
156 | .uartclk = 1843200, | |
157 | }, | |
158 | { }, | |
159 | }; | |
160 | ||
161 | static struct resource iq80321_uart_resource = { | |
162 | .start = IQ80321_UART, | |
163 | .end = IQ80321_UART + 7, | |
164 | .flags = IORESOURCE_MEM, | |
165 | }; | |
166 | ||
167 | static struct platform_device iq80321_serial_device = { | |
168 | .name = "serial8250", | |
169 | .id = PLAT8250_DEV_PLATFORM, | |
170 | .dev = { | |
171 | .platform_data = iq80321_serial_port, | |
172 | }, | |
173 | .num_resources = 1, | |
174 | .resource = &iq80321_uart_resource, | |
175 | }; | |
176 | ||
177 | static void __init iq80321_init_machine(void) | |
178 | { | |
179 | platform_device_register(&iop3xx_i2c0_device); | |
180 | platform_device_register(&iop3xx_i2c1_device); | |
181 | platform_device_register(&iq80321_flash_device); | |
182 | platform_device_register(&iq80321_serial_device); | |
183 | } | |
184 | ||
185 | MACHINE_START(IQ80321, "Intel IQ80321") | |
186 | /* Maintainer: Intel Corp. */ | |
187 | .phys_io = IQ80321_UART, | |
188 | .io_pg_offst = ((IQ80321_UART) >> 18) & 0xfffc, | |
189 | .boot_params = 0xa0000100, | |
190 | .map_io = iq80321_map_io, | |
c852ac80 | 191 | .init_irq = iop32x_init_irq, |
c680b77e LB |
192 | .timer = &iq80321_timer, |
193 | .init_machine = iq80321_init_machine, | |
194 | MACHINE_END |