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
|
#include <common.h>
#include <galileo/pci.h>
#include <net.h>
#include <pci.h>
#include "zuma_pbb.h"
#include "zuma_pbb_mbox.h"
struct _zuma_mbox_dev zuma_mbox_dev;
static int zuma_mbox_write(struct _zuma_mbox_dev *dev, unsigned int data)
{
unsigned int status, count = 0, i;
status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
while((status & OUT_PENDING) && count < 1000) {
count++;
for(i=0;i<1000;i++);
status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
}
if(count < 1000) {
/* if SET it means msg pending */
/* printf("mbox real write %08x\n",data); */
dev->sip->mbox_out = cpu_to_le32(data);
return 4;
}
printf("mbox tx timeout\n");
return 0;
}
static int zuma_mbox_read(struct _zuma_mbox_dev *dev, unsigned int *data)
{
unsigned int status, count = 0, i;
status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
while(!(status & IN_VALID) && count < 1000) {
count++;
for(i=0;i<1000;i++);
status = (volatile int)le32_to_cpu(dev->sip->mbox_status);
}
if(count < 1000) {
/* if SET it means msg pending */
*data=le32_to_cpu(dev->sip->mbox_in);
/*printf("mbox real read %08x\n", *data); */
return 4;
}
printf("mbox rx timeout\n");
return 0;
}
static int zuma_mbox_do_one_mailbox(unsigned int out, unsigned int *in)
{
int ret;
ret=zuma_mbox_write(&zuma_mbox_dev,out);
/*printf("write 0x%08x (%d bytes)\n", out, ret); */
if(ret!=4) return -1;
ret=zuma_mbox_read(&zuma_mbox_dev,in);
/*printf("read 0x%08x (%d bytes)\n", *in, ret); */
if(ret!=4) return -1;
return 0;
}
#define RET_IF_FAILED(x) if ((x) == -1) return -1
static int zuma_mbox_do_all_mailbox(void)
{
unsigned int data_in;
unsigned short sdata_in;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_START, &data_in));
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACL, &data_in));
memcpy(zuma_acc_mac+2,&data_in,4);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_MACH, &data_in));
sdata_in=data_in&0xffff;
memcpy(zuma_acc_mac,&sdata_in,2);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_IP, &data_in));
zuma_ip=data_in;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_SLOT, &data_in));
zuma_slot_bac=data_in>>3;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_BAUD, &data_in));
zuma_console_baud = data_in & 0xffff;
zuma_debug_baud = data_in >> 16;
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_ENG_PRV_MACL, &data_in));
memcpy(zuma_prv_mac+2,&data_in,4);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_ENG_PRV_MACH, &data_in));
sdata_in=data_in&0xffff;
memcpy(zuma_prv_mac,&sdata_in,2);
RET_IF_FAILED(zuma_mbox_do_one_mailbox(ZUMA_MBOXMSG_DONE, &data_in));
return 0;
}
static void
zuma_mbox_dump(void)
{
printf("ACC MAC=%04x%08x\n",*(unsigned short *)(&zuma_acc_mac),*(unsigned int *)((char *)&zuma_acc_mac+2));
printf("PRV MAC=%04x%08x\n",*(unsigned short *)(&zuma_prv_mac),*(unsigned int *)((char *)&zuma_prv_mac+2));
printf("slot:bac=%d:%d\n",(zuma_slot_bac>>2)&0xf, zuma_slot_bac & 0x3);
printf("BAUD1=%d BAUD2=%d\n",zuma_console_baud,zuma_debug_baud);
}
static void
zuma_mbox_setenv(void)
{
char *data, buf[32];
unsigned char save = 0;
data = getenv("baudrate");
if(!data || (zuma_console_baud != simple_strtoul(data, NULL, 10))) {
sprintf(buf, "%6d", zuma_console_baud);
setenv("baudrate", buf);
save=1;
printf("baudrate doesn't match from mbox\n");
}
ip_to_string(zuma_ip, buf);
setenv("ipaddr", buf);
sprintf(buf,"%02x:%02x:%02x:%02x:%02x:%02x",
zuma_prv_mac[0],
zuma_prv_mac[1],
zuma_prv_mac[2],
zuma_prv_mac[3],
zuma_prv_mac[4],
zuma_prv_mac[5]);
setenv("ethaddr", buf);
sprintf(buf,"%02x",zuma_slot_bac);
setenv("bacslot", buf);
if(save)
saveenv();
}
/**
* zuma_mbox_init:
*/
int zuma_mbox_init(void)
{
unsigned int iobase;
memset(&zuma_mbox_dev, 0, sizeof(struct _zuma_mbox_dev));
zuma_mbox_dev.dev = pci_find_device(VENDOR_ID_ZUMA, DEVICE_ID_ZUMA_PBB, 0);
if(zuma_mbox_dev.dev == -1) {
printf("no zuma pbb\n");
return -1;
}
pci_read_config_dword(zuma_mbox_dev.dev, PCI_BASE_ADDRESS_0, &iobase);
zuma_mbox_dev.sip = (PBB_DMA_REG_MAP *) (iobase & PCI_BASE_ADDRESS_MEM_MASK);
zuma_mbox_dev.sip->int_mask.word=0;
printf("pbb @ %p v%d.%d, timestamp %08x\n", zuma_mbox_dev.sip,
zuma_mbox_dev.sip->version.pci_bits.rev_major,
zuma_mbox_dev.sip->version.pci_bits.rev_minor,
zuma_mbox_dev.sip->timestamp);
if (zuma_mbox_do_all_mailbox() == -1) {
printf("mailbox failed.. no ACC?\n");
return -1;
}
zuma_mbox_dump();
zuma_mbox_setenv();
return 0;
}
|
