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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
From 40b9d3026ed0b3bcd59f90391195df5b2adabad2 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 14 Jul 2013 23:34:53 +0200
Subject: [PATCH 19/33] USB: add OHCI/EHCI OF binding
based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/ralink/Kconfig | 2 ++
drivers/usb/Makefile | 3 ++-
drivers/usb/host/ehci-platform.c | 19 +++++++++++++++----
drivers/usb/host/ohci-platform.c | 37 ++++++++++++++++++++++++++++++++-----
4 files changed, 51 insertions(+), 10 deletions(-)
Index: linux-3.10.1/arch/mips/ralink/Kconfig
===================================================================
--- linux-3.10.1.orig/arch/mips/ralink/Kconfig 2013-07-15 17:35:28.021178556 +0200
+++ linux-3.10.1/arch/mips/ralink/Kconfig 2013-07-15 20:00:19.501385660 +0200
@@ -24,6 +24,8 @@
config SOC_MT7620
bool "MT7620"
+ select USB_ARCH_HAS_OHCI
+ select USB_ARCH_HAS_EHCI
select HW_HAS_PCI
endchoice
Index: linux-3.10.1/drivers/usb/Makefile
===================================================================
--- linux-3.10.1.orig/drivers/usb/Makefile 2013-07-13 20:42:41.000000000 +0200
+++ linux-3.10.1/drivers/usb/Makefile 2013-07-15 19:47:26.725367249 +0200
@@ -10,6 +10,8 @@
obj-$(CONFIG_USB_MON) += mon/
+obj-$(CONFIG_USB_PHY) += phy/
+
obj-$(CONFIG_PCI) += host/
obj-$(CONFIG_USB_EHCI_HCD) += host/
obj-$(CONFIG_USB_ISP116X_HCD) += host/
@@ -44,7 +46,6 @@
obj-$(CONFIG_USB_SERIAL) += serial/
obj-$(CONFIG_USB) += misc/
-obj-$(CONFIG_USB_PHY) += phy/
obj-$(CONFIG_EARLY_PRINTK_DBGP) += early/
obj-$(CONFIG_USB_ATM) += atm/
Index: linux-3.10.1/drivers/usb/host/ehci-platform.c
===================================================================
--- linux-3.10.1.orig/drivers/usb/host/ehci-platform.c 2013-07-15 17:35:22.761178428 +0200
+++ linux-3.10.1/drivers/usb/host/ehci-platform.c 2013-07-15 19:47:14.525366961 +0200
@@ -29,6 +29,8 @@
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/otg.h>
#include "ehci.h"
@@ -118,6 +120,15 @@
hcd->rsrc_start = res_mem->start;
hcd->rsrc_len = resource_size(res_mem);
+#ifdef CONFIG_USB_PHY
+ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(hcd->phy)) {
+ otg_set_host(hcd->phy->otg,
+ &hcd->self);
+ usb_phy_init(hcd->phy);
+ }
+#endif
+
hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
if (IS_ERR(hcd->regs)) {
err = PTR_ERR(hcd->regs);
@@ -155,6 +166,9 @@
if (pdata == &ehci_platform_defaults)
dev->dev.platform_data = NULL;
+ if (pdata == &ehci_platform_defaults)
+ dev->dev.platform_data = NULL;
+
return 0;
}
@@ -199,9 +213,8 @@
#define ehci_platform_resume NULL
#endif /* CONFIG_PM */
-static const struct of_device_id vt8500_ehci_ids[] = {
- { .compatible = "via,vt8500-ehci", },
- { .compatible = "wm,prizm-ehci", },
+static const struct of_device_id ralink_ehci_ids[] = {
+ { .compatible = "ralink,rt3xxx-ehci", },
{}
};
@@ -225,7 +238,7 @@
.owner = THIS_MODULE,
.name = "ehci-platform",
.pm = &ehci_platform_pm_ops,
- .of_match_table = of_match_ptr(vt8500_ehci_ids),
+ .of_match_table = of_match_ptr(ralink_ehci_ids),
}
};
Index: linux-3.10.1/drivers/usb/host/ohci-platform.c
===================================================================
--- linux-3.10.1.orig/drivers/usb/host/ohci-platform.c 2013-07-13 20:42:41.000000000 +0200
+++ linux-3.10.1/drivers/usb/host/ohci-platform.c 2013-07-15 19:55:15.913378428 +0200
@@ -16,6 +16,10 @@
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/usb/ohci_pdriver.h>
+#include <linux/dma-mapping.h>
+#include <linux/of.h>
+
+static struct usb_ohci_pdata ohci_platform_defaults;
static int ohci_platform_reset(struct usb_hcd *hcd)
{
@@ -88,14 +92,22 @@
{
struct usb_hcd *hcd;
struct resource *res_mem;
- struct usb_ohci_pdata *pdata = dev->dev.platform_data;
+ struct usb_ohci_pdata *pdata;
int irq;
int err = -ENOMEM;
- if (!pdata) {
- WARN_ON(1);
- return -ENODEV;
- }
+ /*
+ * use reasonable defaults so platforms don't have to provide these.
+ * with DT probing on ARM, none of these are set.
+ */
+ if (!dev->dev.platform_data)
+ dev->dev.platform_data = &ohci_platform_defaults;
+ if (!dev->dev.dma_mask)
+ dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
+ if (!dev->dev.coherent_dma_mask)
+ dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+ pdata = dev->dev.platform_data;
if (usb_disabled())
return -ENODEV;
@@ -128,6 +140,12 @@
hcd->rsrc_start = res_mem->start;
hcd->rsrc_len = resource_size(res_mem);
+#ifdef CONFIG_USB_PHY
+ hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(hcd->phy))
+ usb_phy_init(hcd->phy);
+#endif
+
hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
if (IS_ERR(hcd->regs)) {
err = PTR_ERR(hcd->regs);
@@ -162,6 +180,9 @@
if (pdata->power_off)
pdata->power_off(dev);
+ if (pdata == &ohci_platform_defaults)
+ dev->dev.platform_data = NULL;
+
return 0;
}
@@ -201,6 +222,11 @@
#define ohci_platform_resume NULL
#endif /* CONFIG_PM */
+static const struct of_device_id ralink_ohci_ids[] = {
+ { .compatible = "ralink,rt3xxx-ohci", },
+ {}
+};
+
static const struct platform_device_id ohci_platform_table[] = {
{ "ohci-platform", 0 },
{ }
@@ -221,5 +247,6 @@
.owner = THIS_MODULE,
.name = "ohci-platform",
.pm = &ohci_platform_pm_ops,
+ .of_match_table = of_match_ptr(ralink_ohci_ids),
}
};
|
