atomic: use <linux/atomic.h>
[linux-2.6.git] / arch / arm / mach-cns3xxx / cns3420vb.c
1 /*
2  * Cavium Networks CNS3420 Validation Board
3  *
4  * Copyright 2000 Deep Blue Solutions Ltd
5  * Copyright 2008 ARM Limited
6  * Copyright 2008 Cavium Networks
7  *                Scott Shu
8  * Copyright 2010 MontaVista Software, LLC.
9  *                Anton Vorontsov <avorontsov@mvista.com>
10  *
11  * This file is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License, Version 2, as
13  * published by the Free Software Foundation.
14  */
15
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/compiler.h>
19 #include <linux/io.h>
20 #include <linux/dma-mapping.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_8250.h>
23 #include <linux/platform_device.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/mtd/partitions.h>
27 #include <asm/setup.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/time.h>
32 #include <mach/hardware.h>
33 #include <mach/cns3xxx.h>
34 #include <mach/irqs.h>
35 #include "core.h"
36 #include "devices.h"
37
38 /*
39  * NOR Flash
40  */
41 static struct mtd_partition cns3420_nor_partitions[] = {
42         {
43                 .name           = "uboot",
44                 .size           = 0x00040000,
45                 .offset         = 0,
46                 .mask_flags     = MTD_WRITEABLE,
47         }, {
48                 .name           = "kernel",
49                 .size           = 0x004C0000,
50                 .offset         = MTDPART_OFS_APPEND,
51         }, {
52                 .name           = "filesystem",
53                 .size           = 0x7000000,
54                 .offset         = MTDPART_OFS_APPEND,
55         }, {
56                 .name           = "filesystem2",
57                 .size           = 0x0AE0000,
58                 .offset         = MTDPART_OFS_APPEND,
59         }, {
60                 .name           = "ubootenv",
61                 .size           = MTDPART_SIZ_FULL,
62                 .offset         = MTDPART_OFS_APPEND,
63         },
64 };
65
66 static struct physmap_flash_data cns3420_nor_pdata = {
67         .width = 2,
68         .parts = cns3420_nor_partitions,
69         .nr_parts = ARRAY_SIZE(cns3420_nor_partitions),
70 };
71
72 static struct resource cns3420_nor_res = {
73         .start = CNS3XXX_FLASH_BASE,
74         .end = CNS3XXX_FLASH_BASE + SZ_128M - 1,
75         .flags = IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
76 };
77
78 static struct platform_device cns3420_nor_pdev = {
79         .name = "physmap-flash",
80         .id = 0,
81         .resource = &cns3420_nor_res,
82         .num_resources = 1,
83         .dev = {
84                 .platform_data = &cns3420_nor_pdata,
85         },
86 };
87
88 /*
89  * UART
90  */
91 static void __init cns3420_early_serial_setup(void)
92 {
93 #ifdef CONFIG_SERIAL_8250_CONSOLE
94         static struct uart_port cns3420_serial_port = {
95                 .membase        = (void __iomem *)CNS3XXX_UART0_BASE_VIRT,
96                 .mapbase        = CNS3XXX_UART0_BASE,
97                 .irq            = IRQ_CNS3XXX_UART0,
98                 .iotype         = UPIO_MEM,
99                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
100                 .regshift       = 2,
101                 .uartclk        = 24000000,
102                 .line           = 0,
103                 .type           = PORT_16550A,
104                 .fifosize       = 16,
105         };
106
107         early_serial_setup(&cns3420_serial_port);
108 #endif
109 }
110
111 /*
112  * USB
113  */
114 static struct resource cns3xxx_usb_ehci_resources[] = {
115         [0] = {
116                 .start = CNS3XXX_USB_BASE,
117                 .end   = CNS3XXX_USB_BASE + SZ_16M - 1,
118                 .flags = IORESOURCE_MEM,
119         },
120         [1] = {
121                 .start = IRQ_CNS3XXX_USB_EHCI,
122                 .flags = IORESOURCE_IRQ,
123         },
124 };
125
126 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
127
128 static struct platform_device cns3xxx_usb_ehci_device = {
129         .name          = "cns3xxx-ehci",
130         .num_resources = ARRAY_SIZE(cns3xxx_usb_ehci_resources),
131         .resource      = cns3xxx_usb_ehci_resources,
132         .dev           = {
133                 .dma_mask          = &cns3xxx_usb_ehci_dma_mask,
134                 .coherent_dma_mask = DMA_BIT_MASK(32),
135         },
136 };
137
138 static struct resource cns3xxx_usb_ohci_resources[] = {
139         [0] = {
140                 .start = CNS3XXX_USB_OHCI_BASE,
141                 .end   = CNS3XXX_USB_OHCI_BASE + SZ_16M - 1,
142                 .flags = IORESOURCE_MEM,
143         },
144         [1] = {
145                 .start = IRQ_CNS3XXX_USB_OHCI,
146                 .flags = IORESOURCE_IRQ,
147         },
148 };
149
150 static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
151
152 static struct platform_device cns3xxx_usb_ohci_device = {
153         .name          = "cns3xxx-ohci",
154         .num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
155         .resource      = cns3xxx_usb_ohci_resources,
156         .dev           = {
157                 .dma_mask          = &cns3xxx_usb_ohci_dma_mask,
158                 .coherent_dma_mask = DMA_BIT_MASK(32),
159         },
160 };
161
162 /*
163  * Initialization
164  */
165 static struct platform_device *cns3420_pdevs[] __initdata = {
166         &cns3420_nor_pdev,
167         &cns3xxx_usb_ehci_device,
168         &cns3xxx_usb_ohci_device,
169 };
170
171 static void __init cns3420_init(void)
172 {
173         platform_add_devices(cns3420_pdevs, ARRAY_SIZE(cns3420_pdevs));
174
175         cns3xxx_ahci_init();
176         cns3xxx_sdhci_init();
177
178         pm_power_off = cns3xxx_power_off;
179 }
180
181 static struct map_desc cns3420_io_desc[] __initdata = {
182         {
183                 .virtual        = CNS3XXX_UART0_BASE_VIRT,
184                 .pfn            = __phys_to_pfn(CNS3XXX_UART0_BASE),
185                 .length         = SZ_4K,
186                 .type           = MT_DEVICE,
187         },
188 };
189
190 static void __init cns3420_map_io(void)
191 {
192         cns3xxx_map_io();
193         iotable_init(cns3420_io_desc, ARRAY_SIZE(cns3420_io_desc));
194
195         cns3420_early_serial_setup();
196 }
197
198 MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
199         .boot_params    = 0x00000100,
200         .map_io         = cns3420_map_io,
201         .init_irq       = cns3xxx_init_irq,
202         .timer          = &cns3xxx_timer,
203         .init_machine   = cns3420_init,
204 MACHINE_END