1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*
* USB
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/usb/musb.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#include <mach/da8xx.h>
#include <linux/platform_data/usb-davinci.h>
#define DAVINCI_USB_OTG_BASE 0x01c64000
#define DA8XX_USB0_BASE 0x01e00000
#define DA8XX_USB1_BASE 0x01e25000
#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
static struct musb_hdrc_eps_bits musb_eps[] = {
{ "ep1_tx", 8, },
{ "ep1_rx", 8, },
{ "ep2_tx", 8, },
{ "ep2_rx", 8, },
{ "ep3_tx", 5, },
{ "ep3_rx", 5, },
{ "ep4_tx", 5, },
{ "ep4_rx", 5, },
};
static struct musb_hdrc_config musb_config = {
.multipoint = true,
.dyn_fifo = true,
.soft_con = true,
.dma = true,
.num_eps = 5,
.dma_channels = 8,
.ram_bits = 10,
.eps_bits = musb_eps,
};
static struct musb_hdrc_platform_data usb_data = {
/* OTG requires a Mini-AB connector */
.mode = MUSB_OTG,
.clock = "usb",
.config = &musb_config,
};
static struct resource usb_resources[] = {
{
/* physical address */
.start = DAVINCI_USB_OTG_BASE,
.end = DAVINCI_USB_OTG_BASE + 0x5ff,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_USBINT,
.flags = IORESOURCE_IRQ,
.name = "mc"
},
{
/* placeholder for the dedicated CPPI IRQ */
.flags = IORESOURCE_IRQ,
.name = "dma"
},
};
static u64 usb_dmamask = DMA_BIT_MASK(32);
static struct platform_device usb_dev = {
.name = "musb-davinci",
.id = -1,
.dev = {
.platform_data = &usb_data,
.dma_mask = &usb_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.resource = usb_resources,
.num_resources = ARRAY_SIZE(usb_resources),
};
void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
{
usb_data.power = mA > 510 ? 255 : mA / 2;
usb_data.potpgt = (potpgt_ms + 1) / 2;
if (cpu_is_davinci_dm646x()) {
/* Override the defaults as DM6467 uses different IRQs. */
usb_dev.resource[1].start = IRQ_DM646X_USBINT;
usb_dev.resource[2].start = IRQ_DM646X_USBDMAINT;
} else /* other devices don't have dedicated CPPI IRQ */
usb_dev.num_resources = 2;
platform_device_register(&usb_dev);
}
#ifdef CONFIG_ARCH_DAVINCI_DA8XX
static struct resource da8xx_usb20_resources[] = {
{
.start = DA8XX_USB0_BASE,
.end = DA8XX_USB0_BASE + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_DA8XX_USB_INT,
.flags = IORESOURCE_IRQ,
.name = "mc",
},
};
int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
{
usb_data.clock = "usb20";
usb_data.power = mA > 510 ? 255 : mA / 2;
usb_data.potpgt = (potpgt + 1) / 2;
usb_dev.resource = da8xx_usb20_resources;
usb_dev.num_resources = ARRAY_SIZE(da8xx_usb20_resources);
usb_dev.name = "musb-da8xx";
return platform_device_register(&usb_dev);
}
#endif /* CONFIG_DAVINCI_DA8XX */
#else
void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
{
}
#ifdef CONFIG_ARCH_DAVINCI_DA8XX
int __init da8xx_register_usb20(unsigned mA, unsigned potpgt)
{
return 0;
}
#endif
#endif /* CONFIG_USB_MUSB_HDRC */
#ifdef CONFIG_ARCH_DAVINCI_DA8XX
static struct resource da8xx_usb11_resources[] = {
[0] = {
.start = DA8XX_USB1_BASE,
.end = DA8XX_USB1_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_DA8XX_IRQN,
.end = IRQ_DA8XX_IRQN,
.flags = IORESOURCE_IRQ,
},
};
static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
static struct platform_device da8xx_usb11_device = {
.name = "ohci",
.id = 0,
.dev = {
.dma_mask = &da8xx_usb11_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
.num_resources = ARRAY_SIZE(da8xx_usb11_resources),
.resource = da8xx_usb11_resources,
};
int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
{
da8xx_usb11_device.dev.platform_data = pdata;
return platform_device_register(&da8xx_usb11_device);
}
#endif /* CONFIG_DAVINCI_DA8XX */
|
