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
|
/*
* vme8349.c -- esd VME8349 board support
*
* Copyright (c) 2008-2009 esd gmbh.
*
* (C) Copyright 2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
* Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <ioports.h>
#include <mpc83xx.h>
#include <asm/mpc8349_pci.h>
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#endif
#include <asm/io.h>
#include <asm/mmu.h>
#include <spd.h>
#include <spd_sdram.h>
#include <i2c.h>
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
void ddr_enable_ecc(unsigned int dram_size);
int dram_init(void)
{
volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
u32 msize = 0;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
return -ENXIO;
/* DDR SDRAM - Main memory */
im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR;
msize = spd_sdram();
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
/*
* Initialize and enable DDR ECC.
*/
ddr_enable_ecc(msize * 1024 * 1024);
#endif
/* Now check memory size (after ECC is initialized) */
msize = get_ram_size(0, msize);
/* return total bus SDRAM size(bytes) -- DDR */
gd->ram_size = msize * 1024 * 1024;
return 0;
}
int checkboard(void)
{
#ifdef VME_CADDY2
puts("Board: esd VME-CADDY/2\n");
#else
puts("Board: esd VME-CPU/8349\n");
#endif
return 0;
}
#ifdef VME_CADDY2
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
#endif
#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
#ifdef CONFIG_PCI
ft_pci_setup(blob, bd);
#endif
return 0;
}
#endif
int misc_init_r()
{
immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
clrsetbits_be32(&im->im_lbc.lcrr, LBCR_LDIS, 0);
return 0;
}
/*
* Provide SPD values for spd_sdram(). Both boards (VME-CADDY/2
* and VME-CADDY/2) have different SDRAM configurations.
*/
#ifdef VME_CADDY2
#define SMALL_RAM 0xff
#define LARGE_RAM 0x00
#else
#define SMALL_RAM 0x00
#define LARGE_RAM 0xff
#endif
#define SPD_VAL(a, b) (((a) & SMALL_RAM) | ((b) & LARGE_RAM))
static spd_eeprom_t default_spd_eeprom = {
SPD_VAL(0x80, 0x80), /* 00 use 128 Bytes */
SPD_VAL(0x07, 0x07), /* 01 use 128 Bytes */
SPD_MEMTYPE_DDR2, /* 02 type is DDR2 */
SPD_VAL(0x0d, 0x0d), /* 03 rows: 13 */
SPD_VAL(0x09, 0x0a), /* 04 cols: 9 / 10 */
SPD_VAL(0x00, 0x00), /* 05 */
SPD_VAL(0x40, 0x40), /* 06 */
SPD_VAL(0x00, 0x00), /* 07 */
SPD_VAL(0x05, 0x05), /* 08 */
SPD_VAL(0x30, 0x30), /* 09 */
SPD_VAL(0x45, 0x45), /* 10 */
SPD_VAL(0x02, 0x02), /* 11 ecc used */
SPD_VAL(0x82, 0x82), /* 12 */
SPD_VAL(0x10, 0x10), /* 13 */
SPD_VAL(0x08, 0x08), /* 14 */
SPD_VAL(0x00, 0x00), /* 15 */
SPD_VAL(0x0c, 0x0c), /* 16 */
SPD_VAL(0x04, 0x08), /* 17 banks: 4 / 8 */
SPD_VAL(0x38, 0x38), /* 18 */
SPD_VAL(0x00, 0x00), /* 19 */
SPD_VAL(0x02, 0x02), /* 20 */
SPD_VAL(0x00, 0x00), /* 21 */
SPD_VAL(0x03, 0x03), /* 22 */
SPD_VAL(0x3d, 0x3d), /* 23 */
SPD_VAL(0x45, 0x45), /* 24 */
SPD_VAL(0x50, 0x50), /* 25 */
SPD_VAL(0x45, 0x45), /* 26 */
SPD_VAL(0x3c, 0x3c), /* 27 */
SPD_VAL(0x28, 0x28), /* 28 */
SPD_VAL(0x3c, 0x3c), /* 29 */
SPD_VAL(0x2d, 0x2d), /* 30 */
SPD_VAL(0x20, 0x80), /* 31 */
SPD_VAL(0x20, 0x20), /* 32 */
SPD_VAL(0x27, 0x27), /* 33 */
SPD_VAL(0x10, 0x10), /* 34 */
SPD_VAL(0x17, 0x17), /* 35 */
SPD_VAL(0x3c, 0x3c), /* 36 */
SPD_VAL(0x1e, 0x1e), /* 37 */
SPD_VAL(0x1e, 0x1e), /* 38 */
SPD_VAL(0x00, 0x00), /* 39 */
SPD_VAL(0x00, 0x06), /* 40 */
SPD_VAL(0x37, 0x37), /* 41 */
SPD_VAL(0x4b, 0x7f), /* 42 */
SPD_VAL(0x80, 0x80), /* 43 */
SPD_VAL(0x18, 0x18), /* 44 */
SPD_VAL(0x22, 0x22), /* 45 */
SPD_VAL(0x00, 0x00), /* 46 */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
SPD_VAL(0x10, 0x10), /* 62 */
SPD_VAL(0x7e, 0x1d), /* 63 */
{ 'e', 's', 'd', '-', 'g', 'm', 'b', 'h' },
SPD_VAL(0x00, 0x00), /* 72 */
#ifdef VME_CADDY2
{ "vme-caddy/2 ram " }
#else
{ "vme-cpu/2 ram " }
#endif
};
int vme8349_read_spd(uchar chip, uint addr, int alen, uchar *buffer, int len)
{
int old_bus = i2c_get_bus_num();
unsigned int l, sum;
int valid = 0;
i2c_set_bus_num(0);
if (i2c_read(chip, addr, alen, buffer, len) == 0)
if (memcmp(&buffer[64], &default_spd_eeprom.mid[0], 8) == 0) {
sum = 0;
for (l = 0; l < 63; l++)
sum = (sum + buffer[l]) & 0xff;
if (sum == buffer[63])
valid = 1;
else
printf("Invalid checksum in EEPROM %02x %02x\n",
sum, buffer[63]);
}
if (valid == 0) {
memcpy(buffer, (void *)&default_spd_eeprom, len);
sum = 0;
for (l = 0; l < 63; l++)
sum = (sum + buffer[l]) & 0xff;
if (sum != buffer[63])
printf("Invalid checksum in FLASH %02x %02x\n",
sum, buffer[63]);
buffer[63] = sum;
}
i2c_set_bus_num(old_bus);
return 0;
}
|
