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6c5879f3 MB |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | * | |
23 | * hacked for evb440spe | |
24 | */ | |
25 | ||
26 | #include <common.h> | |
27 | #include <command.h> | |
28 | #include "yucca.h" | |
29 | #include <i2c.h> | |
30 | #include <asm/byteorder.h> | |
31 | ||
32 | extern void print_evb440spe_info(void); | |
b87dfd28 | 33 | static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, |
54841ab5 | 34 | int flag, int argc, char * const argv[]); |
6c5879f3 | 35 | |
6c5879f3 | 36 | /* ------------------------------------------------------------------------- */ |
54841ab5 | 37 | int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
6c5879f3 MB |
38 | { |
39 | return setBootStrapClock (cmdtp, 1, flag, argc, argv); | |
40 | } | |
41 | ||
42 | /* ------------------------------------------------------------------------- */ | |
43 | /* Modify memory. | |
44 | * | |
45 | * Syntax: | |
46 | * evb440spe wrclk prom0,prom1 | |
47 | */ | |
48 | static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag, | |
54841ab5 | 49 | int argc, char * const argv[]) |
6c5879f3 MB |
50 | { |
51 | uchar chip; | |
52 | ulong data; | |
53 | int nbytes; | |
54 | extern char console_buffer[]; | |
55 | ||
56 | char sysClock[4]; | |
57 | char cpuClock[4]; | |
58 | char plbClock[4]; | |
59 | char pcixClock[4]; | |
60 | ||
47e26b1b WD |
61 | if (argc < 3) |
62 | return cmd_usage(cmdtp); | |
6c5879f3 MB |
63 | |
64 | if (strcmp(argv[2], "prom0") == 0) | |
65 | chip = IIC0_BOOTPROM_ADDR; | |
66 | else | |
67 | chip = IIC0_ALT_BOOTPROM_ADDR; | |
68 | ||
69 | do { | |
8ed44d91 | 70 | printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n"); |
6c5879f3 MB |
71 | nbytes = readline (" ? "); |
72 | ||
73 | if (strcmp(console_buffer, "quit") == 0) | |
74 | return 0; | |
75 | ||
76 | if ((strcmp(console_buffer, "33") != 0) & | |
77 | (strcmp(console_buffer, "66") != 0)) | |
78 | nbytes=0; | |
79 | ||
80 | strcpy(sysClock, console_buffer); | |
81 | ||
82 | } while (nbytes == 0); | |
83 | ||
84 | do { | |
85 | if (strcmp(sysClock, "66") == 0) { | |
8ed44d91 | 86 | printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n"); |
6c5879f3 MB |
87 | } else { |
88 | #ifdef CONFIG_STRESS | |
8ed44d91 | 89 | printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n"); |
6c5879f3 | 90 | #else |
8ed44d91 | 91 | printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n"); |
6c5879f3 MB |
92 | #endif |
93 | } | |
94 | nbytes = readline (" ? "); | |
95 | ||
96 | if (strcmp(console_buffer, "quit") == 0) | |
97 | return 0; | |
98 | ||
99 | if (strcmp(sysClock, "66") == 0) { | |
100 | if ((strcmp(console_buffer, "400") != 0) & | |
101 | (strcmp(console_buffer, "533") != 0) | |
102 | #ifdef CONFIG_STRESS | |
103 | & (strcmp(console_buffer, "667") != 0) | |
104 | #endif | |
105 | ) { | |
106 | nbytes = 0; | |
107 | } | |
108 | } else { | |
109 | if ((strcmp(console_buffer, "400") != 0) & | |
110 | (strcmp(console_buffer, "500") != 0) & | |
111 | (strcmp(console_buffer, "533") != 0) | |
112 | #ifdef CONFIG_STRESS | |
113 | & (strcmp(console_buffer, "667") != 0) | |
114 | #endif | |
115 | ) { | |
116 | nbytes = 0; | |
117 | } | |
118 | } | |
119 | ||
120 | strcpy(cpuClock, console_buffer); | |
121 | ||
122 | } while (nbytes == 0); | |
123 | ||
124 | if (strcmp(cpuClock, "500") == 0){ | |
125 | strcpy(plbClock, "166"); | |
126 | } else if (strcmp(cpuClock, "533") == 0){ | |
127 | strcpy(plbClock, "133"); | |
128 | } else { | |
129 | do { | |
130 | if (strcmp(cpuClock, "400") == 0) | |
8ed44d91 | 131 | printf("enter plb clock frequency 100, 133 MHz or quit to abort\n"); |
6c5879f3 MB |
132 | |
133 | #ifdef CONFIG_STRESS | |
134 | if (strcmp(cpuClock, "667") == 0) | |
8ed44d91 | 135 | printf("enter plb clock frequency 133, 166 MHz or quit to abort\n"); |
6c5879f3 MB |
136 | |
137 | #endif | |
138 | nbytes = readline (" ? "); | |
139 | ||
140 | if (strcmp(console_buffer, "quit") == 0) | |
141 | return 0; | |
142 | ||
143 | if (strcmp(cpuClock, "400") == 0) { | |
144 | if ((strcmp(console_buffer, "100") != 0) & | |
145 | (strcmp(console_buffer, "133") != 0)) | |
146 | nbytes = 0; | |
147 | } | |
148 | #ifdef CONFIG_STRESS | |
149 | if (strcmp(cpuClock, "667") == 0) { | |
150 | if ((strcmp(console_buffer, "133") != 0) & | |
151 | (strcmp(console_buffer, "166") != 0)) | |
152 | nbytes = 0; | |
153 | } | |
154 | #endif | |
155 | strcpy(plbClock, console_buffer); | |
156 | ||
157 | } while (nbytes == 0); | |
158 | } | |
159 | ||
160 | do { | |
8ed44d91 | 161 | printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n"); |
6c5879f3 MB |
162 | nbytes = readline (" ? "); |
163 | ||
164 | if (strcmp(console_buffer, "quit") == 0) | |
165 | return 0; | |
166 | ||
167 | if ((strcmp(console_buffer, "33") != 0) & | |
168 | (strcmp(console_buffer, "66") != 0) & | |
169 | (strcmp(console_buffer, "100") != 0) & | |
170 | (strcmp(console_buffer, "133") != 0)) { | |
171 | nbytes = 0; | |
172 | } | |
173 | strcpy(pcixClock, console_buffer); | |
174 | ||
175 | } while (nbytes == 0); | |
176 | ||
8ed44d91 WD |
177 | printf("\nsys clk = %s MHz\n", sysClock); |
178 | printf("cpu clk = %s MHz\n", cpuClock); | |
179 | printf("plb clk = %s MHz\n", plbClock); | |
180 | printf("Pci-X clk = %s MHz\n", pcixClock); | |
6c5879f3 MB |
181 | |
182 | do { | |
183 | printf("\npress [y] to write I2C bootstrap \n"); | |
184 | printf("or [n] to abort. \n"); | |
185 | printf("Don't forget to set board switches \n"); | |
186 | printf("according to your choice before re-starting \n"); | |
187 | printf("(refer to 440spe_uboot_kit_um_1_01.pdf) \n"); | |
188 | ||
189 | nbytes = readline (" ? "); | |
190 | if (strcmp(console_buffer, "n") == 0) | |
191 | return 0; | |
192 | ||
193 | } while (nbytes == 0); | |
194 | ||
195 | if (strcmp(sysClock, "33") == 0) { | |
196 | if ((strcmp(cpuClock, "400") == 0) & | |
197 | (strcmp(plbClock, "100") == 0)) | |
198 | data = 0x8678c206; | |
199 | ||
200 | if ((strcmp(cpuClock, "400") == 0) & | |
201 | (strcmp(plbClock, "133") == 0)) | |
202 | data = 0x8678c2c6; | |
203 | ||
204 | if ((strcmp(cpuClock, "500") == 0)) | |
205 | data = 0x8778f2c6; | |
206 | ||
207 | if ((strcmp(cpuClock, "533") == 0)) | |
208 | data = 0x87790252; | |
209 | ||
210 | #ifdef CONFIG_STRESS | |
211 | if ((strcmp(cpuClock, "667") == 0) & | |
212 | (strcmp(plbClock, "133") == 0)) | |
213 | data = 0x87794256; | |
214 | ||
215 | if ((strcmp(cpuClock, "667") == 0) & | |
216 | (strcmp(plbClock, "166") == 0)) | |
217 | data = 0x87794206; | |
218 | ||
219 | #endif | |
220 | } | |
221 | if (strcmp(sysClock, "66") == 0) { | |
222 | if ((strcmp(cpuClock, "400") == 0) & | |
223 | (strcmp(plbClock, "100") == 0)) | |
224 | data = 0x84706206; | |
225 | ||
226 | if ((strcmp(cpuClock, "400") == 0) & | |
227 | (strcmp(plbClock, "133") == 0)) | |
228 | data = 0x847062c6; | |
229 | ||
230 | if ((strcmp(cpuClock, "533") == 0)) | |
231 | data = 0x85708206; | |
232 | ||
233 | #ifdef CONFIG_STRESS | |
234 | if ((strcmp(cpuClock, "667") == 0) & | |
235 | (strcmp(plbClock, "133") == 0)) | |
236 | data = 0x8570a256; | |
237 | ||
238 | if ((strcmp(cpuClock, "667") == 0) & | |
239 | (strcmp(plbClock, "166") == 0)) | |
240 | data = 0x8570a206; | |
241 | ||
242 | #endif | |
243 | } | |
244 | ||
245 | #ifdef DEBUG | |
246 | printf(" pin strap0 to write in i2c = %x\n", data); | |
247 | #endif /* DEBUG */ | |
248 | ||
249 | if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0) | |
250 | printf("Error writing strap0 in %s\n", argv[2]); | |
251 | ||
252 | if (strcmp(pcixClock, "33") == 0) | |
253 | data = 0x00000701; | |
254 | ||
255 | if (strcmp(pcixClock, "66") == 0) | |
256 | data = 0x00000601; | |
257 | ||
258 | if (strcmp(pcixClock, "100") == 0) | |
259 | data = 0x00000501; | |
260 | ||
261 | if (strcmp(pcixClock, "133") == 0) | |
262 | data = 0x00000401; | |
263 | ||
264 | if (strcmp(plbClock, "166") == 0) | |
265 | data = data | 0x05950000; | |
266 | else | |
267 | data = data | 0x05A50000; | |
268 | ||
269 | #ifdef DEBUG | |
270 | printf(" pin strap1 to write in i2c = %x\n", data); | |
271 | #endif /* DEBUG */ | |
272 | ||
273 | udelay(1000); | |
274 | if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0) | |
275 | printf("Error writing strap1 in %s\n", argv[2]); | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | U_BOOT_CMD( | |
281 | evb440spe, 3, 1, do_evb440spe, | |
2fb2604d | 282 | "program the serial device strap", |
a89c33db | 283 | "wrclk [prom0|prom1] - program the serial device strap" |
6c5879f3 | 284 | ); |