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
|
#ifndef LINUX_SSB_DRIVER_GIGE_H_
#define LINUX_SSB_DRIVER_GIGE_H_
#include <linux/ssb/ssb.h>
#include <linux/bug.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#ifdef CONFIG_SSB_DRIVER_GIGE
#define SSB_GIGE_PCIIO 0x0000 /* PCI I/O Registers (1024 bytes) */
#define SSB_GIGE_RESERVED 0x0400 /* Reserved (1024 bytes) */
#define SSB_GIGE_PCICFG 0x0800 /* PCI config space (256 bytes) */
#define SSB_GIGE_SHIM_FLUSHSTAT 0x0C00 /* PCI to OCP: Flush status control (32bit) */
#define SSB_GIGE_SHIM_FLUSHRDA 0x0C04 /* PCI to OCP: Flush read address (32bit) */
#define SSB_GIGE_SHIM_FLUSHTO 0x0C08 /* PCI to OCP: Flush timeout counter (32bit) */
#define SSB_GIGE_SHIM_BARRIER 0x0C0C /* PCI to OCP: Barrier register (32bit) */
#define SSB_GIGE_SHIM_MAOCPSI 0x0C10 /* PCI to OCP: MaocpSI Control (32bit) */
#define SSB_GIGE_SHIM_SIOCPMA 0x0C14 /* PCI to OCP: SiocpMa Control (32bit) */
/* TM Status High flags */
#define SSB_GIGE_TMSHIGH_RGMII 0x00010000 /* Have an RGMII PHY-bus */
/* TM Status Low flags */
#define SSB_GIGE_TMSLOW_TXBYPASS 0x00080000 /* TX bypass (no delay) */
#define SSB_GIGE_TMSLOW_RXBYPASS 0x00100000 /* RX bypass (no delay) */
#define SSB_GIGE_TMSLOW_DLLEN 0x01000000 /* Enable DLL controls */
/* Boardflags (low) */
#define SSB_GIGE_BFL_ROBOSWITCH 0x0010
#define SSB_GIGE_MEM_RES_NAME "SSB Broadcom 47xx GigE memory"
#define SSB_GIGE_IO_RES_NAME "SSB Broadcom 47xx GigE I/O"
struct ssb_gige {
struct ssb_device *dev;
spinlock_t lock;
/* True, if the device has an RGMII bus.
* False, if the device has a GMII bus. */
bool has_rgmii;
/* The PCI controller device. */
struct pci_controller pci_controller;
struct pci_ops pci_ops;
struct resource mem_resource;
struct resource io_resource;
};
/* Check whether a PCI device is a SSB Gigabit Ethernet core. */
extern bool pdev_is_ssb_gige_core(struct pci_dev *pdev);
/* Convert a pci_dev pointer to a ssb_gige pointer. */
static inline struct ssb_gige * pdev_to_ssb_gige(struct pci_dev *pdev)
{
if (!pdev_is_ssb_gige_core(pdev))
return NULL;
return container_of(pdev->bus->ops, struct ssb_gige, pci_ops);
}
/* Returns whether the PHY is connected by an RGMII bus. */
static inline bool ssb_gige_is_rgmii(struct pci_dev *pdev)
{
struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
return (dev ? dev->has_rgmii : 0);
}
/* Returns whether we have a Roboswitch. */
static inline bool ssb_gige_have_roboswitch(struct pci_dev *pdev)
{
struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
if (dev)
return !!(dev->dev->bus->sprom.boardflags_lo &
SSB_GIGE_BFL_ROBOSWITCH);
return 0;
}
/* Returns whether we can only do one DMA at once. */
static inline bool ssb_gige_one_dma_at_once(struct pci_dev *pdev)
{
struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
if (dev)
return ((dev->dev->bus->chip_id == 0x4785) &&
(dev->dev->bus->chip_rev < 2));
return 0;
}
/* Returns whether we must flush posted writes. */
static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev)
{
struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
if (dev)
return (dev->dev->bus->chip_id == 0x4785);
return 0;
}
#ifdef CONFIG_BCM47XX
#include <bcm47xx_nvram.h>
/* Get the device MAC address */
static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
{
char buf[20];
if (bcm47xx_nvram_getenv("et0macaddr", buf, sizeof(buf)) < 0)
return;
bcm47xx_nvram_parse_macaddr(buf, macaddr);
}
#else
static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
{
}
#endif
extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
struct pci_dev *pdev);
extern int ssb_gige_map_irq(struct ssb_device *sdev,
const struct pci_dev *pdev);
/* The GigE driver is not a standalone module, because we don't have support
* for unregistering the driver. So we could not unload the module anyway. */
extern int ssb_gige_init(void);
static inline void ssb_gige_exit(void)
{
/* Currently we can not unregister the GigE driver,
* because we can not unregister the PCI bridge. */
BUG();
}
#else /* CONFIG_SSB_DRIVER_GIGE */
/* Gigabit Ethernet driver disabled */
static inline int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
struct pci_dev *pdev)
{
return -ENOSYS;
}
static inline int ssb_gige_map_irq(struct ssb_device *sdev,
const struct pci_dev *pdev)
{
return -ENOSYS;
}
static inline int ssb_gige_init(void)
{
return 0;
}
static inline void ssb_gige_exit(void)
{
}
static inline bool pdev_is_ssb_gige_core(struct pci_dev *pdev)
{
return 0;
}
static inline struct ssb_gige * pdev_to_ssb_gige(struct pci_dev *pdev)
{
return NULL;
}
static inline bool ssb_gige_is_rgmii(struct pci_dev *pdev)
{
return 0;
}
static inline bool ssb_gige_have_roboswitch(struct pci_dev *pdev)
{
return 0;
}
static inline bool ssb_gige_one_dma_at_once(struct pci_dev *pdev)
{
return 0;
}
static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev)
{
return 0;
}
#endif /* CONFIG_SSB_DRIVER_GIGE */
#endif /* LINUX_SSB_DRIVER_GIGE_H_ */
|
