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
|
/*
* U-boot - main board file
*
* Copyright (c) 2008-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <net.h>
#include <netdev.h>
#include <spi.h>
#include <asm/blackfin.h>
#include <asm/net.h>
#include <asm/portmux.h>
#include <asm/mach-common/bits/otp.h>
#include <asm/sdh.h>
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
printf("Board: ADI BF518F EZ-Board board\n");
printf(" Support: http://blackfin.uclinux.org/\n");
return 0;
}
#if defined(CONFIG_BFIN_MAC)
static void board_init_enetaddr(uchar *mac_addr)
{
bool valid_mac = false;
#if 0
/* the MAC is stored in OTP memory page 0xDF */
uint32_t ret;
uint64_t otp_mac;
ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
if (!(ret & OTP_MASTER_ERROR)) {
uchar *otp_mac_p = (uchar *)&otp_mac;
for (ret = 0; ret < 6; ++ret)
mac_addr[ret] = otp_mac_p[5 - ret];
if (is_valid_ether_addr(mac_addr))
valid_mac = true;
}
#endif
if (!valid_mac) {
puts("Warning: Generating 'random' MAC address\n");
bfin_gen_rand_mac(mac_addr);
}
eth_setenv_enetaddr("ethaddr", mac_addr);
}
#define KSZ_MAX_HZ 5000000
#define KSZ_WRITE 0x02
#define KSZ_READ 0x03
#define KSZ_REG_CHID 0x00 /* Register 0: Chip ID0 */
#define KSZ_REG_STPID 0x01 /* Register 1: Chip ID1 / Start Switch */
#define KSZ_REG_GC9 0x0b /* Register 11: Global Control 9 */
#define KSZ_REG_P3C0 0x30 /* Register 48: Port 3 Control 0 */
static int ksz8893m_transfer(struct spi_slave *slave, uchar dir, uchar reg,
uchar data, uchar result[3])
{
unsigned char dout[3] = { dir, reg, data, };
return spi_xfer(slave, sizeof(dout) * 8, dout, result, SPI_XFER_BEGIN | SPI_XFER_END);
}
static int ksz8893m_reg_set(struct spi_slave *slave, uchar reg, uchar data)
{
unsigned char din[3];
return ksz8893m_transfer(slave, KSZ_WRITE, reg, data, din);
}
static int ksz8893m_reg_read(struct spi_slave *slave, uchar reg)
{
int ret;
unsigned char din[3];
ret = ksz8893m_transfer(slave, KSZ_READ, reg, 0, din);
return ret ? ret : din[2];
}
static int ksz8893m_reg_clear(struct spi_slave *slave, uchar reg, uchar mask)
{
return ksz8893m_reg_set(slave, reg, ksz8893m_reg_read(slave, reg) & mask);
}
static int ksz8893m_reset(struct spi_slave *slave)
{
int ret = 0;
/* Disable STPID mode */
ret |= ksz8893m_reg_clear(slave, KSZ_REG_GC9, 0x01);
/* Disable VLAN tag insert on Port3 */
ret |= ksz8893m_reg_clear(slave, KSZ_REG_P3C0, 0x04);
/* Start switch */
ret |= ksz8893m_reg_set(slave, KSZ_REG_STPID, 0x01);
return ret;
}
int board_eth_init(bd_t *bis)
{
static bool switch_is_alive = false, phy_is_ksz = true;
int ret;
if (!switch_is_alive) {
struct spi_slave *slave = spi_setup_slave(0, 1, KSZ_MAX_HZ, SPI_MODE_3);
if (slave) {
if (!spi_claim_bus(slave)) {
phy_is_ksz = (ksz8893m_reg_read(slave, KSZ_REG_CHID) == 0x88);
ret = phy_is_ksz ? ksz8893m_reset(slave) : 0;
switch_is_alive = (ret == 0);
spi_release_bus(slave);
}
spi_free_slave(slave);
}
}
if (switch_is_alive)
return bfin_EMAC_initialize(bis);
else
return -1;
}
#endif
int misc_init_r(void)
{
#ifdef CONFIG_BFIN_MAC
uchar enetaddr[6];
if (!eth_getenv_enetaddr("ethaddr", enetaddr))
board_init_enetaddr(enetaddr);
#endif
return 0;
}
int board_early_init_f(void)
{
/* connect async banks by default */
const unsigned short pins[] = {
P_AMS2, P_AMS3, 0,
};
return peripheral_request_list(pins, "async");
}
#ifdef CONFIG_BFIN_SDH
int board_mmc_init(bd_t *bis)
{
return bfin_mmc_init(bis);
}
#endif
|
