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wdenkf7d15722004-12-18 22:35:43 +00001/*
2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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
24#if 0
25#define DEBUG
26#endif
27
28#include <common.h>
29#include <mpc8xx.h>
30#include <i2c.h>
stroesecd5b2b92005-07-05 11:35:27 +000031#include <miiphy.h>
wdenkf7d15722004-12-18 22:35:43 +000032
Marian Balakowicz63ff0042005-10-28 22:30:33 +020033int fec8xx_miiphy_write(char *devname, unsigned char addr,
34 unsigned char reg, unsigned short value);
wdenkf7d15722004-12-18 22:35:43 +000035
36/*********************************************************************/
37/* UPMA Pre Initilization Table by WV (Miron MT48LC16M16A2-7E B) */
38/*********************************************************************/
39const uint sdram_init_upm_table[] = {
40 /* SDRAM Initialisation Sequence (offset 0 in UPMA RAM) WV */
41 /* NOP - Precharge - AutoRefr - NOP - NOP */
42 /* NOP - AutoRefr - NOP */
43 /* NOP - NOP - LoadModeR - NOP - Active */
44 /* Position of Single Read */
45 0x0ffffc04, 0x0ff77c04, 0x0ff5fc04, 0x0ffffc04, 0x0ffffc04,
46 0x0ffffc04, 0x0ff5fc04, 0x0ffffc04,
47
48 /* Burst Read. (offset 8 in UPMA RAM) */
49 /* Cycle lent for Initialisation WV */
50 0x0ffffc04, 0x0ffffc34, 0x0f057c34, 0x0ffffc30, 0x1ff7fc05,
51 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
52 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
53
54 /* Single Write. (offset 18 in UPMA RAM) */
55 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
56 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
57
58 /* Burst Write. (offset 20 in UPMA RAM) */
59 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
60 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
61 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
62
63 /* Refresh (offset 30 in UPMA RAM) */
64 0x0FF77C04, 0x0FFFFC04, 0x0FF5FC84, 0x0FFFFC04, 0x0FFFFC04,
65 0x0FFFFC84, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
66 0xFFFFFFFF, 0xFFFFFFFF,
67
68 /* Exception. (offset 3c in UPMA RAM) */
69 0x7FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
70};
71
72/*********************************************************************/
73/* UPMA initilization table. */
74/*********************************************************************/
75const uint sdram_upm_table[] = {
76 /* single read. (offset 0 in UPMA RAM) */
77 0x0F07FC04, 0x0FFFFC04, 0x00BDFC04, 0x0FF77C00, 0x1FFFFC05,
78 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, /* 0x05-0x07 new WV */
79
80 /* Burst Read. (offset 8 in UPMA RAM) */
81 0x0F07FC04, 0x0FFFFC04, 0x00BDFC04, 0x00FFFC00, 0x00FFFC00,
82 0x00FFFC00, 0x0FF77C00, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
83 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
84
85 /* Single Write. (offset 18 in UPMA RAM) */
86 0x0F07FC04, 0x0FFFFC00, 0x00BD7C04, 0x0FFFFC04, 0x0FF77C04,
87 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
88
89 /* Burst Write. (offset 20 in UPMA RAM) */
90 0x0F07FC04, 0x0FFFFC00, 0x00BD7C00, 0x00FFFC00, 0x00FFFC00,
91 0x00FFFC04, 0x0FFFFC04, 0x0FF77C04, 0x1FFFFC05, 0xFFFFFFFF,
92 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
93
94 /* Refresh (offset 30 in UPMA RAM) */
95 0x0FF77C04, 0x0FFFFC04, 0x0FF5FC84, 0x0FFFFC04, 0x0FFFFC04,
96 0x0FFFFC84, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
97 0xFFFFFFFF, 0xFFFFFFFF,
98
99 /* Exception. (offset 3c in UPMA RAM) */
100 0x7FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, /* 0x3C new WV */
101};
102
103/*********************************************************************/
104/* UPMB initilization table. */
105/*********************************************************************/
106const uint mpm_upm_table[] = {
107 /* single read. (offset 0 in upm RAM) */
108 0x8FF00004, 0x0FF00004, 0x0FF81004, 0x1FF00001,
109 0x1FF00001, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
110
111 /* burst read. (Offset 8 in upm RAM) */
112 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
113 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
114 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
115 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
116
117 /* single write. (Offset 0x18 in upm RAM) */
118 0x8FF00004, 0x0FF00004, 0x0FF81004, 0x0FF00004,
119 0x0FF00004, 0x1FF00001, 0xFFFFFFFF, 0xFFFFFFFF,
120
121 /* burst write. (Offset 0x20 in upm RAM) */
122 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
123 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
124 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
125 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
126
127 /* Refresh cycle, offset 0x30 */
128 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
129 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
130 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
131
132 /* Exception, 0ffset 0x3C */
133 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
134};
135
136
137int board_switch(void)
138{
139 volatile pcmconf8xx_t *pcmp;
140
141 pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
142
143 return ((pcmp->pcmc_pipr >> 24) & 0xf);
144}
145
146
147/*
148 * Check Board Identity:
149 */
150int checkboard (void)
151{
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200152 char str[64];
wdenkf7d15722004-12-18 22:35:43 +0000153 int i = getenv_r ("serial#", str, sizeof(str));
154
155 puts ("Board: ");
156
157 if (i == -1) {
158 puts ("### No HW ID - assuming UC100");
159 } else {
160 puts(str);
161 }
162
163 printf (" (SWITCH=%1X)\n", board_switch());
164
165 return 0;
166}
167
168
169/*
170 * Initialize SDRAM
171 */
172long int initdram (int board_type)
173{
174 volatile immap_t *immap = (immap_t *) CFG_IMMR;
175 volatile memctl8xx_t *memctl = &immap->im_memctl;
176
177 /*---------------------------------------------------------------------*/
178 /* Initialize the UPMA/UPMB registers with the appropriate table. */
179 /*---------------------------------------------------------------------*/
180 upmconfig (UPMA, (uint *) sdram_init_upm_table,
181 sizeof (sdram_init_upm_table) / sizeof (uint));
182 upmconfig (UPMB, (uint *) mpm_upm_table,
183 sizeof (mpm_upm_table) / sizeof (uint));
184
185 /*---------------------------------------------------------------------*/
186 /* Memory Periodic Timer Prescaler: divide by 16 */
187 /*---------------------------------------------------------------------*/
188 memctl->memc_mptpr = 0x0200; /* Divide by 32 WV */
189
190 memctl->memc_mamr = CFG_MAMR_VAL & 0xFF7FFFFF; /* Bit 8 := "0" Kein Refresh WV */
191 memctl->memc_mbmr = CFG_MBMR_VAL;
192
193 /*---------------------------------------------------------------------*/
194 /* Initialize the Memory Controller registers, MPTPR, Chip Select 1 */
195 /* for SDRAM */
196 /* */
197 /* NOTE: The refresh rate in MAMR reg is set according to the lowest */
198 /* clock rate (16.67MHz) to allow proper operation for all ADS */
199 /* clock frequencies. */
200 /*---------------------------------------------------------------------*/
201 memctl->memc_or1 = CFG_OR1_PRELIM;
202 memctl->memc_br1 = CFG_BR1_PRELIM;
203
204 /*-------------------------------------------------------------------*/
205 /* Wait at least 200 usec for DRAM to stabilize, this magic number */
206 /* obtained from the init code. */
207 /*-------------------------------------------------------------------*/
208 udelay(200);
209
210 memctl->memc_mamr = (memctl->memc_mamr | 0x04) & ~0x08;
211
212 memctl->memc_br1 = CFG_BR1_PRELIM;
213 memctl->memc_or1 = CFG_OR1_PRELIM;
214
215 /*---------------------------------------------------------------------*/
216 /* run MRS command in location 5-8 of UPMB. */
217 /*---------------------------------------------------------------------*/
218 memctl->memc_mar = 0x88;
219 /* RUN UPMA on CS1 1-time from UPMA addr 0x05 */
220
221 memctl->memc_mcr = 0x80002100;
222 /* RUN UPMA on CS1 1-time from UPMA addr 0x00 WV */
223
224 udelay(200);
225
226 /*---------------------------------------------------------------------*/
227 /* Initialisation for normal access WV */
228 /*---------------------------------------------------------------------*/
229
230 /*---------------------------------------------------------------------*/
231 /* Initialize the UPMA register with the appropriate table. */
232 /*---------------------------------------------------------------------*/
233 upmconfig (UPMA, (uint *) sdram_upm_table,
234 sizeof (sdram_upm_table) / sizeof (uint));
235
236 /*---------------------------------------------------------------------*/
237 /* rerstore MBMR value (4-beat refresh burst.) */
238 /*---------------------------------------------------------------------*/
239 memctl->memc_mamr = CFG_MAMR_VAL | 0x00800000; /* Bit 8 := "1" Refresh Enable WV */
240
241 udelay(200);
242
243 return (64 * 1024 * 1024); /* fixed setup for 64MBytes! */
244}
245
246
247int misc_init_r (void)
248{
249 uchar val;
250
251 /*
252 * Make sure that RTC has clock output enabled (triggers watchdog!)
253 */
254 val = i2c_reg_read (CFG_I2C_RTC_ADDR, 0x0D);
255 val |= 0x80;
256 i2c_reg_write (CFG_I2C_RTC_ADDR, 0x0D, val);
257
stroesecd5b2b92005-07-05 11:35:27 +0000258 /*
259 * Configure PHY to setup LED's correctly and use 100MBit, FD
260 */
261 mii_init();
262
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200263 /* disable auto-negotiation, 100mbit, full-duplex */
264 fec8xx_miiphy_write(NULL, 0, PHY_BMCR, 0x2100);
265
266 /* set LED's to Link, Transmit, Receive */
267 fec8xx_miiphy_write(NULL, 0, PHY_FCSCR, 0x4122);
stroesecd5b2b92005-07-05 11:35:27 +0000268
wdenkf7d15722004-12-18 22:35:43 +0000269 return 0;
270}
271
272
273#ifdef CONFIG_POST
274/*
275 * Returns 1 if keys pressed to start the power-on long-running tests
276 * Called from board_init_f().
277 */
278int post_hotkeys_pressed (void)
279{
280 return 0; /* No hotkeys supported */
281}
282#endif