Merge branch 'samsung/exynos5' into next/soc2
[linux-2.6.git] / arch / arm / mach-ux500 / cpu-db5500.c
1 /*
2  * Copyright (C) ST-Ericsson SA 2010
3  *
4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
5  * License terms: GNU General Public License (GPL) version 2
6  */
7
8 #include <linux/platform_device.h>
9 #include <linux/amba/bus.h>
10 #include <linux/io.h>
11 #include <linux/irq.h>
12
13 #include <asm/mach/map.h>
14 #include <asm/pmu.h>
15
16 #include <plat/gpio-nomadik.h>
17
18 #include <mach/hardware.h>
19 #include <mach/devices.h>
20 #include <mach/setup.h>
21 #include <mach/irqs.h>
22 #include <mach/usb.h>
23
24 #include "devices-db5500.h"
25 #include "ste-dma40-db5500.h"
26
27 static struct map_desc u5500_uart_io_desc[] __initdata = {
28         __IO_DEV_DESC(U5500_UART0_BASE, SZ_4K),
29         __IO_DEV_DESC(U5500_UART2_BASE, SZ_4K),
30 };
31
32 static struct map_desc u5500_io_desc[] __initdata = {
33         /* SCU base also covers GIC CPU BASE and TWD with its 4K page */
34         __IO_DEV_DESC(U5500_SCU_BASE, SZ_4K),
35         __IO_DEV_DESC(U5500_GIC_DIST_BASE, SZ_4K),
36         __IO_DEV_DESC(U5500_L2CC_BASE, SZ_4K),
37         __IO_DEV_DESC(U5500_MTU0_BASE, SZ_4K),
38         __IO_DEV_DESC(U5500_BACKUPRAM0_BASE, SZ_8K),
39
40         __IO_DEV_DESC(U5500_GPIO0_BASE, SZ_4K),
41         __IO_DEV_DESC(U5500_GPIO1_BASE, SZ_4K),
42         __IO_DEV_DESC(U5500_GPIO2_BASE, SZ_4K),
43         __IO_DEV_DESC(U5500_GPIO3_BASE, SZ_4K),
44         __IO_DEV_DESC(U5500_GPIO4_BASE, SZ_4K),
45         __IO_DEV_DESC(U5500_PRCMU_BASE, SZ_4K),
46         __IO_DEV_DESC(U5500_PRCMU_TCDM_BASE, SZ_4K),
47 };
48
49 static struct resource mbox0_resources[] = {
50         {
51                 .name = "mbox_peer",
52                 .start = U5500_MBOX0_PEER_START,
53                 .end = U5500_MBOX0_PEER_END,
54                 .flags = IORESOURCE_MEM,
55         },
56         {
57                 .name = "mbox_local",
58                 .start = U5500_MBOX0_LOCAL_START,
59                 .end = U5500_MBOX0_LOCAL_END,
60                 .flags = IORESOURCE_MEM,
61         },
62         {
63                 .name = "mbox_irq",
64                 .start = MBOX_PAIR0_VIRT_IRQ,
65                 .end = MBOX_PAIR0_VIRT_IRQ,
66                 .flags = IORESOURCE_IRQ,
67         }
68 };
69
70 static struct resource mbox1_resources[] = {
71         {
72                 .name = "mbox_peer",
73                 .start = U5500_MBOX1_PEER_START,
74                 .end = U5500_MBOX1_PEER_END,
75                 .flags = IORESOURCE_MEM,
76         },
77         {
78                 .name = "mbox_local",
79                 .start = U5500_MBOX1_LOCAL_START,
80                 .end = U5500_MBOX1_LOCAL_END,
81                 .flags = IORESOURCE_MEM,
82         },
83         {
84                 .name = "mbox_irq",
85                 .start = MBOX_PAIR1_VIRT_IRQ,
86                 .end = MBOX_PAIR1_VIRT_IRQ,
87                 .flags = IORESOURCE_IRQ,
88         }
89 };
90
91 static struct resource mbox2_resources[] = {
92         {
93                 .name = "mbox_peer",
94                 .start = U5500_MBOX2_PEER_START,
95                 .end = U5500_MBOX2_PEER_END,
96                 .flags = IORESOURCE_MEM,
97         },
98         {
99                 .name = "mbox_local",
100                 .start = U5500_MBOX2_LOCAL_START,
101                 .end = U5500_MBOX2_LOCAL_END,
102                 .flags = IORESOURCE_MEM,
103         },
104         {
105                 .name = "mbox_irq",
106                 .start = MBOX_PAIR2_VIRT_IRQ,
107                 .end = MBOX_PAIR2_VIRT_IRQ,
108                 .flags = IORESOURCE_IRQ,
109         }
110 };
111
112 static struct platform_device mbox0_device = {
113         .id = 0,
114         .name = "mbox",
115         .resource = mbox0_resources,
116         .num_resources = ARRAY_SIZE(mbox0_resources),
117 };
118
119 static struct platform_device mbox1_device = {
120         .id = 1,
121         .name = "mbox",
122         .resource = mbox1_resources,
123         .num_resources = ARRAY_SIZE(mbox1_resources),
124 };
125
126 static struct platform_device mbox2_device = {
127         .id = 2,
128         .name = "mbox",
129         .resource = mbox2_resources,
130         .num_resources = ARRAY_SIZE(mbox2_resources),
131 };
132
133 static struct platform_device *db5500_platform_devs[] __initdata = {
134         &mbox0_device,
135         &mbox1_device,
136         &mbox2_device,
137 };
138
139 static resource_size_t __initdata db5500_gpio_base[] = {
140         U5500_GPIOBANK0_BASE,
141         U5500_GPIOBANK1_BASE,
142         U5500_GPIOBANK2_BASE,
143         U5500_GPIOBANK3_BASE,
144         U5500_GPIOBANK4_BASE,
145         U5500_GPIOBANK5_BASE,
146         U5500_GPIOBANK6_BASE,
147         U5500_GPIOBANK7_BASE,
148 };
149
150 static void __init db5500_add_gpios(struct device *parent)
151 {
152         struct nmk_gpio_platform_data pdata = {
153                 /* No custom data yet */
154         };
155
156         dbx500_add_gpios(parent, ARRAY_AND_SIZE(db5500_gpio_base),
157                          IRQ_DB5500_GPIO0, &pdata);
158 }
159
160 void __init u5500_map_io(void)
161 {
162         /*
163          * Map the UARTs early so that the DEBUG_LL stuff continues to work.
164          */
165         iotable_init(u5500_uart_io_desc, ARRAY_SIZE(u5500_uart_io_desc));
166
167         ux500_map_io();
168
169         iotable_init(u5500_io_desc, ARRAY_SIZE(u5500_io_desc));
170
171         _PRCMU_BASE = __io_address(U5500_PRCMU_BASE);
172 }
173
174 static void __init db5500_pmu_init(void)
175 {
176         struct resource res[] = {
177                 [0] = {
178                         .start          = IRQ_DB5500_PMU0,
179                         .end            = IRQ_DB5500_PMU0,
180                         .flags          = IORESOURCE_IRQ,
181                 },
182                 [1] = {
183                         .start          = IRQ_DB5500_PMU1,
184                         .end            = IRQ_DB5500_PMU1,
185                         .flags          = IORESOURCE_IRQ,
186                 },
187         };
188
189         platform_device_register_simple("arm-pmu", ARM_PMU_DEVICE_CPU,
190                                         res, ARRAY_SIZE(res));
191 }
192
193 static int usb_db5500_rx_dma_cfg[] = {
194         DB5500_DMA_DEV4_USB_OTG_IEP_1_9,
195         DB5500_DMA_DEV5_USB_OTG_IEP_2_10,
196         DB5500_DMA_DEV6_USB_OTG_IEP_3_11,
197         DB5500_DMA_DEV20_USB_OTG_IEP_4_12,
198         DB5500_DMA_DEV21_USB_OTG_IEP_5_13,
199         DB5500_DMA_DEV22_USB_OTG_IEP_6_14,
200         DB5500_DMA_DEV23_USB_OTG_IEP_7_15,
201         DB5500_DMA_DEV38_USB_OTG_IEP_8
202 };
203
204 static int usb_db5500_tx_dma_cfg[] = {
205         DB5500_DMA_DEV4_USB_OTG_OEP_1_9,
206         DB5500_DMA_DEV5_USB_OTG_OEP_2_10,
207         DB5500_DMA_DEV6_USB_OTG_OEP_3_11,
208         DB5500_DMA_DEV20_USB_OTG_OEP_4_12,
209         DB5500_DMA_DEV21_USB_OTG_OEP_5_13,
210         DB5500_DMA_DEV22_USB_OTG_OEP_6_14,
211         DB5500_DMA_DEV23_USB_OTG_OEP_7_15,
212         DB5500_DMA_DEV38_USB_OTG_OEP_8
213 };
214
215 static const char *db5500_read_soc_id(void)
216 {
217         return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
218 }
219
220 static struct device * __init db5500_soc_device_init(void)
221 {
222         const char *soc_id = db5500_read_soc_id();
223
224         return ux500_soc_device_init(soc_id);
225 }
226
227 struct device * __init u5500_init_devices(void)
228 {
229         struct device *parent;
230         int i;
231
232         parent = db5500_soc_device_init();
233
234         db5500_add_gpios(parent);
235         db5500_pmu_init();
236         db5500_dma_init(parent);
237         db5500_add_rtc(parent);
238         db5500_add_usb(parent, usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
239
240         for (i = 0; i < ARRAY_SIZE(db5500_platform_devs); i++)
241                 db5500_platform_devs[i]->dev.parent = parent;
242
243         platform_add_devices(db5500_platform_devs,
244                              ARRAY_SIZE(db5500_platform_devs));
245
246         return parent;
247 }