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
db5500_add_gpios(struct device * parent)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
u5500_map_io(void)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
db5500_pmu_init(void)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
db5500_read_soc_id(void)215 static const char *db5500_read_soc_id(void)
216 {
217 return kasprintf(GFP_KERNEL, "u5500 currently unsupported\n");
218 }
219
db5500_soc_device_init(void)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
u5500_init_devices(void)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 }
248