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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
/*
* (C) Copyright 2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdt_support.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/module_fuse.h>
struct fuse_entry_desc {
enum fuse_module_type module;
const char *node_path;
u32 fuse_word_offset;
u32 fuse_bit_offset;
u32 status;
};
static struct fuse_entry_desc mx6_fuse_descs[] = {
#ifdef CONFIG_MX6UL
{MX6_MODULE_TSC, "/soc/aips-bus@02000000/tsc@02040000", 0x430, 22},
{MX6_MODULE_ADC2, "/soc/aips-bus@02100000/adc@0219c000", 0x430, 23},
{MX6_MODULE_SIM1, "/soc/aips-bus@02100000/sim@0218c000", 0x430, 24},
{MX6_MODULE_SIM2, "/soc/aips-bus@02100000/sim@021b4000", 0x430, 25},
{MX6_MODULE_FLEXCAN1, "/soc/aips-bus@02000000/can@02090000", 0x430, 26},
{MX6_MODULE_FLEXCAN2, "/soc/aips-bus@02000000/can@02094000", 0x430, 27},
{MX6_MODULE_SPDIF, "/soc/aips-bus@02000000/spba-bus@02000000/spdif@02004000", 0x440, 2},
{MX6_MODULE_EIM, "/soc/aips-bus@02100000/weim@021b8000", 0x440, 3},
{MX6_MODULE_SD1, "/soc/aips-bus@02100000/usdhc@02190000", 0x440, 4},
{MX6_MODULE_SD2, "/soc/aips-bus@02100000/usdhc@02194000", 0x440, 5},
{MX6_MODULE_QSPI1, "/soc/aips-bus@02100000/qspi@021e0000", 0x440, 6},
{MX6_MODULE_GPMI, "/soc/gpmi-nand@01806000", 0x440, 7},
{MX6_MODULE_APBHDMA, "/soc/dma-apbh@01804000", 0x440, 7},
{MX6_MODULE_LCDIF, "/soc/aips-bus@02100000/lcdif@021c8000", 0x440, 8},
{MX6_MODULE_PXP, "/soc/aips-bus@02100000/pxp@021cc000", 0x440, 9},
{MX6_MODULE_CSI, "/soc/aips-bus@02100000/csi@021c4000", 0x440, 10},
{MX6_MODULE_ADC1, "/soc/aips-bus@02100000/adc@02198000", 0x440, 11},
{MX6_MODULE_ENET1, "/soc/aips-bus@02100000/ethernet@02188000", 0x440, 12},
{MX6_MODULE_ENET2, "/soc/aips-bus@02000000/ethernet@020b4000", 0x440, 13},
{MX6_MODULE_CAAM, "/soc/aips-bus@02100000/caam@2140000", 0x440, 14},
{MX6_MODULE_USB_OTG2, "/soc/aips-bus@02100000/usb@02184200", 0x440, 15},
{MX6_MODULE_SAI2, "/soc/aips-bus@02000000/spba-bus@02000000/sai@0202c000", 0x440, 24},
{MX6_MODULE_SAI3, "/soc/aips-bus@02000000/spba-bus@02000000/sai@02030000", 0x440, 24},
{MX6_MODULE_BEE, "/soc/aips-bus@02000000/bee@02044000", 0x440, 25},
{MX6_MODULE_UART5, "/soc/aips-bus@02100000/serial@021f4000", 0x440, 26},
{MX6_MODULE_UART6, "/soc/aips-bus@02100000/serial@021fc000", 0x440, 26},
{MX6_MODULE_UART7, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02018000", 0x440, 26},
{MX6_MODULE_UART8, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02024000", 0x440, 26},
{MX6_MODULE_PWM5, "/soc/aips-bus@02000000/pwm@020f0000", 0x440, 27},
{MX6_MODULE_PWM6, "/soc/aips-bus@02000000/pwm@020f4000", 0x440, 27},
{MX6_MODULE_PWM7, "/soc/aips-bus@02000000/pwm@020f8000", 0x440, 27},
{MX6_MODULE_PWM8, "/soc/aips-bus@02000000/pwm@020fc000", 0x440, 27},
{MX6_MODULE_ECSPI3, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02010000", 0x440, 28},
{MX6_MODULE_ECSPI4, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02014000", 0x440, 28},
{MX6_MODULE_I2C3, "/soc/aips-bus@02100000/i2c@021a8000", 0x440, 29},
{MX6_MODULE_I2C4, "/soc/aips-bus@02100000/i2c@021f8000", 0x440, 29},
{MX6_MODULE_GPT2, "/soc/aips-bus@02000000/gpt@020e8000", 0x440, 30},
{MX6_MODULE_EPIT2, "/soc/aips-bus@02000000/epit@020d4000", 0x440, 31},
#endif
};
u32 check_module_fused(enum fuse_module_type module)
{
u32 i, reg;
for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
if (mx6_fuse_descs[i].module == module) {
reg = readl(OCOTP_BASE_ADDR + mx6_fuse_descs[i].fuse_word_offset);
if (reg & (1 << mx6_fuse_descs[i].fuse_bit_offset))
return 1; /* disabled */
else
return 0; /* enabled */
}
}
return 0; /* Not has a fuse, always enabled */
}
#ifdef DEBUG
void print_fuse_status()
{
u32 i, reg;
for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
reg = readl(OCOTP_BASE_ADDR + mx6_fuse_descs[i].fuse_word_offset);
if (reg & (1 << mx6_fuse_descs[i].fuse_bit_offset))
printf("%s, disabled\n", mx6_fuse_descs[i].node_path);
}
}
void simulate_fuse()
{
u32 i, reg;
for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
if (MX6_MODULE_SD2 == mx6_fuse_descs[i].module)
continue;
reg = readl(OCOTP_BASE_ADDR + mx6_fuse_descs[i].fuse_word_offset);
reg |= (1 << mx6_fuse_descs[i].fuse_bit_offset);
writel(reg, OCOTP_BASE_ADDR + mx6_fuse_descs[i].fuse_word_offset);
}
}
#endif
#ifdef CONFIG_OF_SYSTEM_SETUP
int ft_system_setup(void *blob, bd_t *bd)
{
u32 i, reg;
const char *status = "disabled";
int rc;
for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
reg = readl(OCOTP_BASE_ADDR + mx6_fuse_descs[i].fuse_word_offset);
if (reg & (1 << mx6_fuse_descs[i].fuse_bit_offset)) {
int nodeoff = fdt_path_offset(blob, mx6_fuse_descs[i].node_path);
if (nodeoff < 0)
continue; /* Not found, skip it */
add_status:
rc = fdt_setprop(blob, nodeoff, "status", status, strlen(status) + 1);
if (rc) {
if (rc == -FDT_ERR_NOSPACE) {
rc = fdt_increase_size(blob, 512);
if (!rc)
goto add_status;
}
printf("Unable to update property %s:%s, err=%s\n",
mx6_fuse_descs[i].node_path, "status", fdt_strerror(rc));
} else {
printf("Modify %s:%s disabled\n",
mx6_fuse_descs[i].node_path, "status");
}
}
}
printf("ft_system_setup for mx6\n");
return 0;
}
#endif
u32 mx6_esdhc_fused(u32 base_addr)
{
switch (base_addr) {
case USDHC1_BASE_ADDR:
return check_module_fused(MX6_MODULE_SD1);
case USDHC2_BASE_ADDR:
return check_module_fused(MX6_MODULE_SD2);
#ifdef USDHC3_BASE_ADDR
case USDHC3_BASE_ADDR:
return check_module_fused(MX6_MODULE_SD3);
#endif
#ifdef USDHC4_BASE_ADDR
case USDHC4_BASE_ADDR:
return check_module_fused(MX6_MODULE_SD4);
#endif
default:
return 0;
}
}
u32 mx6_ecspi_fused(u32 base_addr)
{
switch (base_addr) {
case ECSPI1_BASE_ADDR:
return check_module_fused(MX6_MODULE_ECSPI1);
case ECSPI2_BASE_ADDR:
return check_module_fused(MX6_MODULE_ECSPI2);
case ECSPI3_BASE_ADDR:
return check_module_fused(MX6_MODULE_ECSPI3);
case ECSPI4_BASE_ADDR:
return check_module_fused(MX6_MODULE_ECSPI4);
#ifdef ECSPI5_BASE_ADDR
case ECSPI5_BASE_ADDR:
return check_module_fused(MX6_MODULE_ECSPI5);
#endif
default:
return 0;
}
}
u32 mx6_uart_fused(u32 base_addr)
{
switch (base_addr) {
case UART1_BASE:
return check_module_fused(MX6_MODULE_UART1);
case UART2_BASE:
return check_module_fused(MX6_MODULE_UART2);
case UART3_BASE:
return check_module_fused(MX6_MODULE_UART3);
case UART4_BASE:
return check_module_fused(MX6_MODULE_UART4);
case UART5_BASE:
return check_module_fused(MX6_MODULE_UART5);
case MX6UL_UART6_BASE_ADDR:
case MX6SX_UART6_BASE_ADDR:
return check_module_fused(MX6_MODULE_UART6);
#ifdef UART7_IPS_BASE_ADDR
case UART7_IPS_BASE_ADDR:
return check_module_fused(MX6_MODULE_UART7);
#endif
#ifdef UART8_IPS_BASE_ADDR
case UART8_IPS_BASE_ADDR:
return check_module_fused(MX6_MODULE_UART8);
#endif
}
return 0;
}
u32 mx6_usb_fused(u32 base_addr)
{
int i = (base_addr - USB_BASE_ADDR) / 0x200;
return check_module_fused(MX6_MODULE_USB_OTG1 + i);
}
u32 mx6_qspi_fused(u32 base_addr)
{
switch (base_addr) {
#ifdef QSPI1_BASE_ADDR
case QSPI1_BASE_ADDR:
return check_module_fused(MX6_MODULE_QSPI1);
#endif
#ifdef QSPI2_BASE_ADDR
case QSPI2_BASE_ADDR:
return check_module_fused(MX6_MODULE_QSPI2);
#endif
default:
return 0;
}
}
u32 mx6_i2c_fused(u32 base_addr)
{
switch (base_addr) {
case I2C1_BASE_ADDR:
return check_module_fused(MX6_MODULE_I2C1);
case I2C2_BASE_ADDR:
return check_module_fused(MX6_MODULE_I2C2);
case I2C3_BASE_ADDR:
return check_module_fused(MX6_MODULE_I2C3);
#ifdef I2C4_BASE_ADDR
case I2C4_BASE_ADDR:
return check_module_fused(MX6_MODULE_I2C4);
#endif
}
return 0;
}
u32 mx6_enet_fused(u32 base_addr)
{
switch (base_addr) {
case ENET_BASE_ADDR:
return check_module_fused(MX6_MODULE_ENET1);
#ifdef ENET2_BASE_ADDR
case ENET2_BASE_ADDR:
return check_module_fused(MX6_MODULE_ENET2);
#endif
default:
return 0;
}
}
|
