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11#include <common.h>
12#include <i2c.h>
13#include <asm/arch/imx-regs.h>
14#include <asm/arch/iomux.h>
15#include <asm/arch/mx6-pins.h>
16#include <asm/gpio.h>
17#include <asm/mach-imx/iomux-v3.h>
18
19#include "pf0100_otp.inc"
20#include "pf0100.h"
21
22
23
24
25
26static iomux_v3_cfg_t const pmic_prog_pads[] = {
27 MX6_PAD_NANDF_D3__GPIO2_IO03 | MUX_PAD_CTRL(NO_PAD_CTRL),
28# define PMIC_PROG_VOLTAGE IMX_GPIO_NR(2, 3)
29};
30
31unsigned pmic_init(void)
32{
33 unsigned programmed = 0;
34 uchar bus = 1;
35 uchar devid, revid, val;
36
37 puts("PMIC: ");
38 if (!((0 == i2c_set_bus_num(bus)) &&
39 (0 == i2c_probe(PFUZE100_I2C_ADDR)))) {
40 puts("i2c bus failed\n");
41 return 0;
42 }
43
44 if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_DEVICEID, 1, &devid, 1) < 0) {
45 puts("i2c pmic devid read failed\n");
46 return 0;
47 }
48 if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_REVID, 1, &revid, 1) < 0) {
49 puts("i2c pmic revid read failed\n");
50 return 0;
51 }
52 printf("device id: 0x%.2x, revision id: 0x%.2x\n", devid, revid);
53
54#ifdef DEBUG
55 {
56 unsigned i, j;
57
58 for (i = 0; i < 16; i++)
59 printf("\t%x", i);
60 for (j = 0; j < 0x80; ) {
61 printf("\n%2x", j);
62 for (i = 0; i < 16; i++) {
63 i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
64 printf("\t%2x", val);
65 }
66 j += 0x10;
67 }
68 printf("\nEXT Page 1");
69
70 val = PFUZE100_PAGE_REGISTER_PAGE1;
71 if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1,
72 &val, 1)) {
73 puts("i2c write failed\n");
74 return 0;
75 }
76
77 for (j = 0x80; j < 0x100; ) {
78 printf("\n%2x", j);
79 for (i = 0; i < 16; i++) {
80 i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
81 printf("\t%2x", val);
82 }
83 j += 0x10;
84 }
85 printf("\nEXT Page 2");
86
87 val = PFUZE100_PAGE_REGISTER_PAGE2;
88 if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1,
89 &val, 1)) {
90 puts("i2c write failed\n");
91 return 0;
92 }
93
94 for (j = 0x80; j < 0x100; ) {
95 printf("\n%2x", j);
96 for (i = 0; i < 16; i++) {
97 i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
98 printf("\t%2x", val);
99 }
100 j += 0x10;
101 }
102 printf("\n");
103 }
104#endif
105
106 val = PFUZE100_PAGE_REGISTER_PAGE1;
107 if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1, &val, 1)) {
108 puts("i2c write failed\n");
109 return 0;
110 }
111 if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR1, 1, &val, 1) < 0) {
112 puts("i2c fuse_por read failed\n");
113 return 0;
114 }
115 if (val & PFUZE100_FUSE_POR_M)
116 programmed++;
117
118 if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR2, 1, &val, 1) < 0) {
119 puts("i2c fuse_por read failed\n");
120 return programmed;
121 }
122 if (val & PFUZE100_FUSE_POR_M)
123 programmed++;
124
125 if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR3, 1, &val, 1) < 0) {
126 puts("i2c fuse_por read failed\n");
127 return programmed;
128 }
129 if (val & PFUZE100_FUSE_POR_M)
130 programmed++;
131
132 switch (programmed) {
133 case 0:
134 printf("PMIC: not programmed\n");
135 break;
136 case 3:
137 printf("PMIC: programmed\n");
138 break;
139 default:
140 printf("PMIC: undefined programming state\n");
141 break;
142 }
143
144 return programmed;
145}
146
147int pf0100_prog(void)
148{
149 unsigned char bus = 1;
150 unsigned char val;
151 unsigned int i;
152
153 if (pmic_init() == 3) {
154 puts("PMIC already programmed, exiting\n");
155 return CMD_RET_FAILURE;
156 }
157
158 imx_iomux_v3_setup_multiple_pads(pmic_prog_pads,
159 ARRAY_SIZE(pmic_prog_pads));
160 gpio_direction_output(PMIC_PROG_VOLTAGE, 0);
161
162 if (!((0 == i2c_set_bus_num(bus)) &&
163 (0 == i2c_probe(PFUZE100_I2C_ADDR)))) {
164 puts("i2c bus failed\n");
165 return CMD_RET_FAILURE;
166 }
167
168 for (i = 0; i < ARRAY_SIZE(pmic_otp_prog); i++) {
169 switch (pmic_otp_prog[i].cmd) {
170 case pmic_i2c:
171 val = (unsigned char) (pmic_otp_prog[i].value & 0xff);
172 if (i2c_write(PFUZE100_I2C_ADDR, pmic_otp_prog[i].reg,
173 1, &val, 1)) {
174 printf("i2c write failed, reg 0x%2x, value 0x%2x\n",
175 pmic_otp_prog[i].reg, val);
176 return CMD_RET_FAILURE;
177 }
178 break;
179 case pmic_delay:
180 udelay(pmic_otp_prog[i].value * 1000);
181 break;
182 case pmic_vpgm:
183 gpio_direction_output(PMIC_PROG_VOLTAGE,
184 pmic_otp_prog[i].value);
185 break;
186 case pmic_pwr:
187
188 break;
189 }
190 }
191 return CMD_RET_SUCCESS;
192}
193
194int do_pf0100_prog(cmd_tbl_t *cmdtp, int flag, int argc,
195 char * const argv[])
196{
197 int ret;
198 puts("Programming PMIC OTP...");
199 ret = pf0100_prog();
200 if (ret == CMD_RET_SUCCESS)
201 puts("done.\n");
202 else
203 puts("failed.\n");
204 return ret;
205}
206
207U_BOOT_CMD(
208 pf0100_otp_prog, 1, 0, do_pf0100_prog,
209 "Program the OTP fuses on the PMIC PF0100",
210 ""
211);
212
