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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* Copyright (C) 2005 Sven Luther <sl@bplan-gmbh.de>
* Thanks to :
* Dale Farnsworth <dale@farnsworth.org>
* Mark A. Greer <mgreer@mvista.com>
* Nicolas DET <nd@bplan-gmbh.de>
* Benjamin Herrenschmidt <benh@kernel.crashing.org>
* And anyone else who helped me on this.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mv643xx.h>
#include <linux/pci.h>
#define PEGASOS2_MARVELL_REGBASE (0xf1000000)
#define PEGASOS2_MARVELL_REGSIZE (0x00004000)
#define PEGASOS2_SRAM_BASE (0xf2000000)
#define PEGASOS2_SRAM_SIZE (256*1024)
#define PEGASOS2_SRAM_BASE_ETH0 (PEGASOS2_SRAM_BASE)
#define PEGASOS2_SRAM_BASE_ETH1 (PEGASOS2_SRAM_BASE_ETH0 + (PEGASOS2_SRAM_SIZE / 2) )
#define PEGASOS2_SRAM_RXRING_SIZE (PEGASOS2_SRAM_SIZE/4)
#define PEGASOS2_SRAM_TXRING_SIZE (PEGASOS2_SRAM_SIZE/4)
#undef BE_VERBOSE
static struct resource mv643xx_eth_shared_resources[] = {
[0] = {
.name = "ethernet shared base",
.start = 0xf1000000 + MV643XX_ETH_SHARED_REGS,
.end = 0xf1000000 + MV643XX_ETH_SHARED_REGS +
MV643XX_ETH_SHARED_REGS_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device mv643xx_eth_shared_device = {
.name = MV643XX_ETH_SHARED_NAME,
.id = 0,
.num_resources = ARRAY_SIZE(mv643xx_eth_shared_resources),
.resource = mv643xx_eth_shared_resources,
};
static struct resource mv643xx_eth0_resources[] = {
[0] = {
.name = "eth0 irq",
.start = 9,
.end = 9,
.flags = IORESOURCE_IRQ,
},
};
static struct mv643xx_eth_platform_data eth0_pd = {
.shared = &mv643xx_eth_shared_device,
.port_number = 0,
.tx_sram_addr = PEGASOS2_SRAM_BASE_ETH0,
.tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
.tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
.rx_sram_addr = PEGASOS2_SRAM_BASE_ETH0 + PEGASOS2_SRAM_TXRING_SIZE,
.rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
.rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
};
static struct platform_device eth0_device = {
.name = MV643XX_ETH_NAME,
.id = 0,
.num_resources = ARRAY_SIZE(mv643xx_eth0_resources),
.resource = mv643xx_eth0_resources,
.dev = {
.platform_data = ð0_pd,
},
};
static struct resource mv643xx_eth1_resources[] = {
[0] = {
.name = "eth1 irq",
.start = 9,
.end = 9,
.flags = IORESOURCE_IRQ,
},
};
static struct mv643xx_eth_platform_data eth1_pd = {
.shared = &mv643xx_eth_shared_device,
.port_number = 1,
.tx_sram_addr = PEGASOS2_SRAM_BASE_ETH1,
.tx_sram_size = PEGASOS2_SRAM_TXRING_SIZE,
.tx_queue_size = PEGASOS2_SRAM_TXRING_SIZE/16,
.rx_sram_addr = PEGASOS2_SRAM_BASE_ETH1 + PEGASOS2_SRAM_TXRING_SIZE,
.rx_sram_size = PEGASOS2_SRAM_RXRING_SIZE,
.rx_queue_size = PEGASOS2_SRAM_RXRING_SIZE/16,
};
static struct platform_device eth1_device = {
.name = MV643XX_ETH_NAME,
.id = 1,
.num_resources = ARRAY_SIZE(mv643xx_eth1_resources),
.resource = mv643xx_eth1_resources,
.dev = {
.platform_data = ð1_pd,
},
};
static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
&mv643xx_eth_shared_device,
ð0_device,
ð1_device,
};
/***********/
/***********/
#define MV_READ(offset,val) { val = readl(mv643xx_reg_base + offset); }
#define MV_WRITE(offset,data) writel(data, mv643xx_reg_base + offset)
static void __iomem *mv643xx_reg_base;
static int Enable_SRAM(void)
{
u32 ALong;
if (mv643xx_reg_base == NULL)
mv643xx_reg_base = ioremap(PEGASOS2_MARVELL_REGBASE,
PEGASOS2_MARVELL_REGSIZE);
if (mv643xx_reg_base == NULL)
return -ENOMEM;
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: register remapped from %p to %p\n",
(void *)PEGASOS2_MARVELL_REGBASE, (void *)mv643xx_reg_base);
#endif
MV_WRITE(MV64340_SRAM_CONFIG, 0);
MV_WRITE(MV64340_INTEGRATED_SRAM_BASE_ADDR, PEGASOS2_SRAM_BASE >> 16);
MV_READ(MV64340_BASE_ADDR_ENABLE, ALong);
ALong &= ~(1 << 19);
MV_WRITE(MV64340_BASE_ADDR_ENABLE, ALong);
ALong = 0x02;
ALong |= PEGASOS2_SRAM_BASE & 0xffff0000;
MV_WRITE(MV643XX_ETH_BAR_4, ALong);
MV_WRITE(MV643XX_ETH_SIZE_REG_4, (PEGASOS2_SRAM_SIZE-1) & 0xffff0000);
MV_READ(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
ALong &= ~(1 << 4);
MV_WRITE(MV643XX_ETH_BASE_ADDR_ENABLE_REG, ALong);
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: register unmapped\n");
printk("Pegasos II/Marvell MV64361: SRAM at %p, size=%x\n", (void*) PEGASOS2_SRAM_BASE, PEGASOS2_SRAM_SIZE);
#endif
iounmap(mv643xx_reg_base);
mv643xx_reg_base = NULL;
return 1;
}
/***********/
/***********/
static int __init mv643xx_eth_add_pds(void)
{
int ret = 0;
static struct pci_device_id pci_marvell_mv64360[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, PCI_DEVICE_ID_MARVELL_MV64360) },
{ }
};
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: init\n");
#endif
if (pci_dev_present(pci_marvell_mv64360)) {
ret = platform_add_devices(mv643xx_eth_pd_devs,
ARRAY_SIZE(mv643xx_eth_pd_devs));
if ( Enable_SRAM() < 0)
{
eth0_pd.tx_sram_addr = 0;
eth0_pd.tx_sram_size = 0;
eth0_pd.rx_sram_addr = 0;
eth0_pd.rx_sram_size = 0;
eth1_pd.tx_sram_addr = 0;
eth1_pd.tx_sram_size = 0;
eth1_pd.rx_sram_addr = 0;
eth1_pd.rx_sram_size = 0;
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: Can't enable the "
"SRAM\n");
#endif
}
}
#ifdef BE_VERBOSE
printk("Pegasos II/Marvell MV64361: init is over\n");
#endif
return ret;
}
device_initcall(mv643xx_eth_add_pds);
|
