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Marian Balakowicz6c5879f2006-06-30 16:30:46 +02001/*
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
32extern void print_evb440spe_info(void);
Wolfgang Denkb87dfd22006-07-19 13:50:38 +020033static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
Wolfgang Denk54841ab2010-06-28 22:00:46 +020034 int flag, int argc, char * const argv[]);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020035
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020036/* ------------------------------------------------------------------------- */
Wolfgang Denk54841ab2010-06-28 22:00:46 +020037int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020038{
39 return setBootStrapClock (cmdtp, 1, flag, argc, argv);
40}
41
42/* ------------------------------------------------------------------------- */
43/* Modify memory.
44 *
45 * Syntax:
46 * evb440spe wrclk prom0,prom1
47 */
48static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
Wolfgang Denk54841ab2010-06-28 22:00:46 +020049 int argc, char * const argv[])
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020050{
51 uchar chip;
52 ulong data;
53 int nbytes;
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020054
55 char sysClock[4];
56 char cpuClock[4];
57 char plbClock[4];
58 char pcixClock[4];
59
Wolfgang Denk47e26b12010-07-17 01:06:04 +020060 if (argc < 3)
61 return cmd_usage(cmdtp);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020062
63 if (strcmp(argv[2], "prom0") == 0)
64 chip = IIC0_BOOTPROM_ADDR;
65 else
66 chip = IIC0_ALT_BOOTPROM_ADDR;
67
68 do {
Wolfgang Denk8ed44d92008-10-19 02:35:50 +020069 printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020070 nbytes = readline (" ? ");
71
72 if (strcmp(console_buffer, "quit") == 0)
73 return 0;
74
75 if ((strcmp(console_buffer, "33") != 0) &
76 (strcmp(console_buffer, "66") != 0))
77 nbytes=0;
78
79 strcpy(sysClock, console_buffer);
80
81 } while (nbytes == 0);
82
83 do {
84 if (strcmp(sysClock, "66") == 0) {
Wolfgang Denk8ed44d92008-10-19 02:35:50 +020085 printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020086 } else {
87#ifdef CONFIG_STRESS
Wolfgang Denk8ed44d92008-10-19 02:35:50 +020088 printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020089#else
Wolfgang Denk8ed44d92008-10-19 02:35:50 +020090 printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +020091#endif
92 }
93 nbytes = readline (" ? ");
94
95 if (strcmp(console_buffer, "quit") == 0)
96 return 0;
97
98 if (strcmp(sysClock, "66") == 0) {
99 if ((strcmp(console_buffer, "400") != 0) &
100 (strcmp(console_buffer, "533") != 0)
101#ifdef CONFIG_STRESS
102 & (strcmp(console_buffer, "667") != 0)
103#endif
104 ) {
105 nbytes = 0;
106 }
107 } else {
108 if ((strcmp(console_buffer, "400") != 0) &
109 (strcmp(console_buffer, "500") != 0) &
110 (strcmp(console_buffer, "533") != 0)
111#ifdef CONFIG_STRESS
112 & (strcmp(console_buffer, "667") != 0)
113#endif
114 ) {
115 nbytes = 0;
116 }
117 }
118
119 strcpy(cpuClock, console_buffer);
120
121 } while (nbytes == 0);
122
123 if (strcmp(cpuClock, "500") == 0){
124 strcpy(plbClock, "166");
125 } else if (strcmp(cpuClock, "533") == 0){
126 strcpy(plbClock, "133");
127 } else {
128 do {
129 if (strcmp(cpuClock, "400") == 0)
Wolfgang Denk8ed44d92008-10-19 02:35:50 +0200130 printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200131
132#ifdef CONFIG_STRESS
133 if (strcmp(cpuClock, "667") == 0)
Wolfgang Denk8ed44d92008-10-19 02:35:50 +0200134 printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200135
136#endif
137 nbytes = readline (" ? ");
138
139 if (strcmp(console_buffer, "quit") == 0)
140 return 0;
141
142 if (strcmp(cpuClock, "400") == 0) {
143 if ((strcmp(console_buffer, "100") != 0) &
144 (strcmp(console_buffer, "133") != 0))
145 nbytes = 0;
146 }
147#ifdef CONFIG_STRESS
148 if (strcmp(cpuClock, "667") == 0) {
149 if ((strcmp(console_buffer, "133") != 0) &
150 (strcmp(console_buffer, "166") != 0))
151 nbytes = 0;
152 }
153#endif
154 strcpy(plbClock, console_buffer);
155
156 } while (nbytes == 0);
157 }
158
159 do {
Wolfgang Denk8ed44d92008-10-19 02:35:50 +0200160 printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200161 nbytes = readline (" ? ");
162
163 if (strcmp(console_buffer, "quit") == 0)
164 return 0;
165
166 if ((strcmp(console_buffer, "33") != 0) &
167 (strcmp(console_buffer, "66") != 0) &
168 (strcmp(console_buffer, "100") != 0) &
169 (strcmp(console_buffer, "133") != 0)) {
170 nbytes = 0;
171 }
172 strcpy(pcixClock, console_buffer);
173
174 } while (nbytes == 0);
175
Wolfgang Denk8ed44d92008-10-19 02:35:50 +0200176 printf("\nsys clk = %s MHz\n", sysClock);
177 printf("cpu clk = %s MHz\n", cpuClock);
178 printf("plb clk = %s MHz\n", plbClock);
179 printf("Pci-X clk = %s MHz\n", pcixClock);
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200180
181 do {
182 printf("\npress [y] to write I2C bootstrap \n");
183 printf("or [n] to abort. \n");
184 printf("Don't forget to set board switches \n");
185 printf("according to your choice before re-starting \n");
186 printf("(refer to 440spe_uboot_kit_um_1_01.pdf) \n");
187
188 nbytes = readline (" ? ");
189 if (strcmp(console_buffer, "n") == 0)
190 return 0;
191
192 } while (nbytes == 0);
193
194 if (strcmp(sysClock, "33") == 0) {
195 if ((strcmp(cpuClock, "400") == 0) &
196 (strcmp(plbClock, "100") == 0))
197 data = 0x8678c206;
198
199 if ((strcmp(cpuClock, "400") == 0) &
200 (strcmp(plbClock, "133") == 0))
201 data = 0x8678c2c6;
202
203 if ((strcmp(cpuClock, "500") == 0))
204 data = 0x8778f2c6;
205
206 if ((strcmp(cpuClock, "533") == 0))
207 data = 0x87790252;
208
209#ifdef CONFIG_STRESS
210 if ((strcmp(cpuClock, "667") == 0) &
211 (strcmp(plbClock, "133") == 0))
212 data = 0x87794256;
213
214 if ((strcmp(cpuClock, "667") == 0) &
215 (strcmp(plbClock, "166") == 0))
216 data = 0x87794206;
217
218#endif
219 }
220 if (strcmp(sysClock, "66") == 0) {
221 if ((strcmp(cpuClock, "400") == 0) &
222 (strcmp(plbClock, "100") == 0))
223 data = 0x84706206;
224
225 if ((strcmp(cpuClock, "400") == 0) &
226 (strcmp(plbClock, "133") == 0))
227 data = 0x847062c6;
228
229 if ((strcmp(cpuClock, "533") == 0))
230 data = 0x85708206;
231
232#ifdef CONFIG_STRESS
233 if ((strcmp(cpuClock, "667") == 0) &
234 (strcmp(plbClock, "133") == 0))
235 data = 0x8570a256;
236
237 if ((strcmp(cpuClock, "667") == 0) &
238 (strcmp(plbClock, "166") == 0))
239 data = 0x8570a206;
240
241#endif
242 }
243
244#ifdef DEBUG
245 printf(" pin strap0 to write in i2c = %x\n", data);
246#endif /* DEBUG */
247
248 if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0)
249 printf("Error writing strap0 in %s\n", argv[2]);
250
251 if (strcmp(pcixClock, "33") == 0)
252 data = 0x00000701;
253
254 if (strcmp(pcixClock, "66") == 0)
255 data = 0x00000601;
256
257 if (strcmp(pcixClock, "100") == 0)
258 data = 0x00000501;
259
260 if (strcmp(pcixClock, "133") == 0)
261 data = 0x00000401;
262
263 if (strcmp(plbClock, "166") == 0)
264 data = data | 0x05950000;
265 else
266 data = data | 0x05A50000;
267
268#ifdef DEBUG
269 printf(" pin strap1 to write in i2c = %x\n", data);
270#endif /* DEBUG */
271
272 udelay(1000);
273 if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0)
274 printf("Error writing strap1 in %s\n", argv[2]);
275
276 return 0;
277}
278
279U_BOOT_CMD(
280 evb440spe, 3, 1, do_evb440spe,
Peter Tyser2fb26042009-01-27 18:03:12 -0600281 "program the serial device strap",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200282 "wrclk [prom0|prom1] - program the serial device strap"
Marian Balakowicz6c5879f2006-06-30 16:30:46 +0200283);