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Commit | Line | Data |
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8b07a110 WD |
1 | /* |
2 | * (C) Copyright 2003,Motorola Inc. | |
3 | * Xianghua Xiao, (X.Xiao@motorola.com) | |
4 | * | |
5 | * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com> | |
6 | * | |
7 | * (C) Copyright 2004 Wind River Systems Inc <www.windriver.com>. | |
8 | * Added support for Wind River SBC8560 board | |
9 | * | |
10 | * See file CREDITS for list of people who contributed to this | |
11 | * project. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License as | |
15 | * published by the Free Software Foundation; either version 2 of | |
16 | * the License, or (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
26 | * MA 02111-1307 USA | |
27 | */ | |
28 | ||
29 | ||
30 | extern long int spd_sdram (void); | |
31 | ||
32 | #include <common.h> | |
33 | #include <asm/processor.h> | |
34 | #include <asm/immap_85xx.h> | |
35 | #include <ioports.h> | |
36 | #include <spd.h> | |
37 | #include <miiphy.h> | |
38 | ||
39 | long int fixed_sdram (void); | |
40 | ||
41 | /* | |
42 | * I/O Port configuration table | |
43 | * | |
44 | * if conf is 1, then that port pin will be configured at boot time | |
45 | * according to the five values podr/pdir/ppar/psor/pdat for that entry | |
46 | */ | |
47 | ||
48 | const iop_conf_t iop_conf_tab[4][32] = { | |
49 | ||
50 | /* Port A configuration */ | |
51 | { /* conf ppar psor pdir podr pdat */ | |
52 | /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */ | |
53 | /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */ | |
54 | /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */ | |
55 | /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */ | |
56 | /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */ | |
57 | /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */ | |
58 | /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */ | |
59 | /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */ | |
60 | /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */ | |
61 | /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */ | |
62 | /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */ | |
63 | /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */ | |
64 | /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */ | |
65 | /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */ | |
66 | /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */ | |
67 | /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */ | |
68 | /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */ | |
69 | /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */ | |
70 | /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */ | |
71 | /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */ | |
72 | /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */ | |
73 | /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */ | |
74 | /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */ | |
75 | /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */ | |
76 | /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */ | |
77 | /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */ | |
78 | /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */ | |
79 | /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */ | |
80 | /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */ | |
81 | /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */ | |
82 | /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */ | |
83 | /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */ | |
84 | }, | |
85 | ||
86 | /* Port B configuration */ | |
87 | { /* conf ppar psor pdir podr pdat */ | |
88 | /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */ | |
89 | /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */ | |
90 | /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */ | |
91 | /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */ | |
92 | /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */ | |
93 | /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */ | |
94 | /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */ | |
95 | /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */ | |
96 | /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */ | |
97 | /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */ | |
98 | /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */ | |
99 | /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */ | |
100 | /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */ | |
101 | /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */ | |
102 | /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */ | |
103 | /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */ | |
104 | /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */ | |
105 | /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */ | |
106 | /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */ | |
107 | /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */ | |
108 | /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ | |
109 | /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ | |
110 | /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ | |
111 | /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */ | |
112 | /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ | |
113 | /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ | |
114 | /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ | |
115 | /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */ | |
116 | /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
117 | /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
118 | /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
119 | /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ | |
120 | }, | |
121 | ||
122 | /* Port C */ | |
123 | { /* conf ppar psor pdir podr pdat */ | |
124 | /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */ | |
125 | /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */ | |
126 | /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */ | |
127 | /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */ | |
128 | /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */ | |
129 | /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */ | |
130 | /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */ | |
131 | /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */ | |
132 | /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */ | |
133 | /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */ | |
134 | /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */ | |
135 | /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */ | |
136 | /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */ | |
137 | /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */ | |
138 | /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */ | |
139 | /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */ | |
140 | /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */ | |
141 | /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */ | |
142 | /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */ | |
143 | /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */ | |
144 | /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */ | |
145 | /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */ | |
146 | /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */ | |
147 | /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */ | |
148 | /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */ | |
149 | /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */ | |
150 | /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */ | |
151 | /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */ | |
152 | /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */ | |
153 | /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */ | |
154 | /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */ | |
155 | /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */ | |
156 | }, | |
157 | ||
158 | /* Port D */ | |
159 | { /* conf ppar psor pdir podr pdat */ | |
160 | /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */ | |
161 | /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */ | |
162 | /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 RTS */ | |
163 | /* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RxD */ | |
164 | /* PD27 */ { 1, 1, 1, 1, 0, 0 }, /* SCC2 TxD */ | |
165 | /* PD26 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 RTS */ | |
166 | /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */ | |
167 | /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */ | |
168 | /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */ | |
169 | /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */ | |
170 | /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */ | |
171 | /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */ | |
172 | /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */ | |
173 | /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */ | |
174 | /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */ | |
175 | /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */ | |
176 | /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */ | |
177 | /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */ | |
178 | /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */ | |
179 | /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */ | |
180 | /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */ | |
181 | /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */ | |
182 | /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */ | |
183 | /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */ | |
184 | /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */ | |
185 | /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */ | |
186 | /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */ | |
187 | /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */ | |
188 | /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
189 | /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
190 | /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */ | |
191 | /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */ | |
192 | } | |
193 | }; | |
194 | ||
195 | int board_early_init_f (void) | |
196 | { | |
197 | #if defined(CONFIG_PCI) | |
198 | volatile immap_t *immr = (immap_t *)CFG_IMMR; | |
199 | volatile ccsr_pcix_t *pci = &immr->im_pcix; | |
200 | ||
201 | pci->peer &= 0xfffffffdf; /* disable master abort */ | |
202 | #endif | |
203 | return 0; | |
204 | } | |
205 | ||
206 | void reset_phy (void) | |
207 | { | |
208 | #if defined(CONFIG_ETHER_ON_FCC) /* avoid compile warnings for now */ | |
209 | volatile unsigned char *bcsr = (unsigned char *) CFG_BCSR; | |
210 | #endif | |
211 | /* reset Giga bit Ethernet port if needed here */ | |
212 | ||
213 | /* reset the CPM FEC port */ | |
214 | #if (CONFIG_ETHER_INDEX == 2) | |
215 | bcsr[0] &= ~0x20; | |
216 | udelay(2); | |
217 | bcsr[0] |= 0x20; | |
218 | udelay(1000); | |
219 | #elif (CONFIG_ETHER_INDEX == 3) | |
220 | bcsr[0] &= ~0x10; | |
221 | udelay(2); | |
222 | bcsr[0] |= 0x10; | |
223 | udelay(1000); | |
224 | #endif | |
225 | #if defined(CONFIG_MII) && defined(CONFIG_ETHER_ON_FCC) | |
226 | miiphy_reset(0x0); /* reset PHY */ | |
227 | miiphy_write(0, PHY_MIPSCR, 0xf028); /* change PHY address to 0x02 */ | |
228 | miiphy_write(0x02, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); | |
229 | #endif /* CONFIG_MII */ | |
230 | } | |
231 | ||
232 | int checkboard (void) | |
233 | { | |
234 | sys_info_t sysinfo; | |
235 | ||
236 | get_sys_info (&sysinfo); | |
237 | ||
238 | printf ("Board: Wind River SBC8560 Board\n"); | |
239 | printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000); | |
240 | printf ("\tCCB: %lu MHz\n", sysinfo.freqSystemBus / 1000000); | |
241 | printf ("\tDDR: %lu MHz\n", sysinfo.freqSystemBus / 2000000); | |
242 | if((CFG_LBC_LCRR & 0x0f) == 2 || (CFG_LBC_LCRR & 0x0f) == 4 \ | |
243 | || (CFG_LBC_LCRR & 0x0f) == 8) { | |
244 | printf ("\tLBC: %lu MHz\n", sysinfo.freqSystemBus / 1000000 /(CFG_LBC_LCRR & 0x0f)); | |
245 | } else { | |
246 | printf("\tLBC: unknown\n"); | |
247 | } | |
248 | printf("\tCPM: %lu Mhz\n", sysinfo.freqSystemBus / 1000000); | |
249 | printf("L1 D-cache 32KB, L1 I-cache 32KB enabled.\n"); | |
250 | return (0); | |
251 | } | |
252 | ||
253 | ||
254 | long int initdram (int board_type) | |
255 | { | |
256 | long dram_size = 0; | |
257 | extern long spd_sdram (void); | |
258 | volatile immap_t *immap = (immap_t *)CFG_IMMR; | |
281e00a3 | 259 | #if 0 |
8b07a110 WD |
260 | #if !defined(CONFIG_RAM_AS_FLASH) |
261 | volatile ccsr_lbc_t *lbc= &immap->im_lbc; | |
262 | sys_info_t sysinfo; | |
263 | uint temp_lbcdll = 0; | |
264 | #endif | |
281e00a3 | 265 | #endif /* 0 */ |
8b07a110 WD |
266 | #if !defined(CONFIG_RAM_AS_FLASH) || defined(CONFIG_DDR_DLL) |
267 | volatile ccsr_gur_t *gur= &immap->im_gur; | |
268 | #endif | |
269 | #if defined(CONFIG_DDR_DLL) | |
270 | uint temp_ddrdll = 0; | |
271 | ||
272 | /* Work around to stabilize DDR DLL */ | |
273 | temp_ddrdll = gur->ddrdllcr; | |
274 | gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000; | |
275 | asm("sync;isync;msync"); | |
276 | #endif | |
277 | ||
278 | #if defined(CONFIG_SPD_EEPROM) | |
279 | dram_size = spd_sdram (); | |
280 | #else | |
281 | dram_size = fixed_sdram (); | |
282 | #endif | |
283 | ||
281e00a3 | 284 | #if 0 |
8b07a110 WD |
285 | #if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus SDRAM is not emulating flash */ |
286 | get_sys_info(&sysinfo); | |
287 | /* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */ | |
288 | if(sysinfo.freqSystemBus/(CFG_LBC_LCRR & 0x0f) < 66000000) { | |
289 | lbc->lcrr = (CFG_LBC_LCRR & 0x0fffffff)| 0x80000000; | |
290 | } else { | |
291 | #if defined(CONFIG_MPC85xx_REV1) /* need change CLKDIV before enable DLL */ | |
292 | lbc->lcrr = 0x10000004; /* default CLKDIV is 8, change it to 4 temporarily */ | |
293 | #endif | |
294 | lbc->lcrr = CFG_LBC_LCRR & 0x7fffffff; | |
295 | udelay(200); | |
296 | temp_lbcdll = gur->lbcdllcr; | |
297 | gur->lbcdllcr = ((temp_lbcdll & 0xff) << 16 ) | 0x80000000; | |
298 | asm("sync;isync;msync"); | |
299 | } | |
300 | lbc->or2 = CFG_OR2_PRELIM; /* 64MB SDRAM */ | |
301 | lbc->br2 = CFG_BR2_PRELIM; | |
302 | lbc->lbcr = CFG_LBC_LBCR; | |
303 | lbc->lsdmr = CFG_LBC_LSDMR_1; | |
304 | asm("sync"); | |
305 | (unsigned int) * (ulong *)0 = 0x000000ff; | |
306 | lbc->lsdmr = CFG_LBC_LSDMR_2; | |
307 | asm("sync"); | |
308 | (unsigned int) * (ulong *)0 = 0x000000ff; | |
309 | lbc->lsdmr = CFG_LBC_LSDMR_3; | |
310 | asm("sync"); | |
311 | (unsigned int) * (ulong *)0 = 0x000000ff; | |
312 | lbc->lsdmr = CFG_LBC_LSDMR_4; | |
313 | asm("sync"); | |
314 | (unsigned int) * (ulong *)0 = 0x000000ff; | |
315 | lbc->lsdmr = CFG_LBC_LSDMR_5; | |
316 | asm("sync"); | |
317 | lbc->lsrt = CFG_LBC_LSRT; | |
318 | asm("sync"); | |
319 | lbc->mrtpr = CFG_LBC_MRTPR; | |
320 | asm("sync"); | |
321 | #endif | |
322 | #endif | |
323 | ||
324 | #if defined(CONFIG_DDR_ECC) | |
325 | { | |
326 | /* Initialize all of memory for ECC, then | |
327 | * enable errors */ | |
328 | uint *p = 0; | |
329 | uint i = 0; | |
330 | volatile immap_t *immap = (immap_t *)CFG_IMMR; | |
331 | volatile ccsr_ddr_t *ddr= &immap->im_ddr; | |
332 | dma_init(); | |
333 | for (*p = 0; p < (uint *)(8 * 1024); p++) { | |
334 | if (((unsigned int)p & 0x1f) == 0) { dcbz(p); } | |
335 | *p = (unsigned int)0xdeadbeef; | |
336 | if (((unsigned int)p & 0x1c) == 0x1c) { dcbf(p); } | |
337 | } | |
338 | ||
339 | /* 8K */ | |
340 | dma_xfer((uint *)0x2000,0x2000,(uint *)0); | |
341 | /* 16K */ | |
342 | dma_xfer((uint *)0x4000,0x4000,(uint *)0); | |
343 | /* 32K */ | |
344 | dma_xfer((uint *)0x8000,0x8000,(uint *)0); | |
345 | /* 64K */ | |
346 | dma_xfer((uint *)0x10000,0x10000,(uint *)0); | |
347 | /* 128k */ | |
348 | dma_xfer((uint *)0x20000,0x20000,(uint *)0); | |
349 | /* 256k */ | |
350 | dma_xfer((uint *)0x40000,0x40000,(uint *)0); | |
351 | /* 512k */ | |
352 | dma_xfer((uint *)0x80000,0x80000,(uint *)0); | |
353 | /* 1M */ | |
354 | dma_xfer((uint *)0x100000,0x100000,(uint *)0); | |
355 | /* 2M */ | |
356 | dma_xfer((uint *)0x200000,0x200000,(uint *)0); | |
357 | /* 4M */ | |
358 | dma_xfer((uint *)0x400000,0x400000,(uint *)0); | |
359 | ||
360 | for (i = 1; i < dram_size / 0x800000; i++) { | |
361 | dma_xfer((uint *)(0x800000*i),0x800000,(uint *)0); | |
362 | } | |
363 | ||
364 | /* Enable errors for ECC */ | |
365 | ddr->err_disable = 0x00000000; | |
366 | asm("sync;isync;msync"); | |
367 | } | |
368 | #endif | |
369 | ||
370 | return dram_size; | |
371 | } | |
372 | ||
373 | ||
374 | #if defined(CFG_DRAM_TEST) | |
375 | int testdram (void) | |
376 | { | |
377 | uint *pstart = (uint *) CFG_MEMTEST_START; | |
378 | uint *pend = (uint *) CFG_MEMTEST_END; | |
379 | uint *p; | |
380 | ||
381 | printf("SDRAM test phase 1:\n"); | |
382 | for (p = pstart; p < pend; p++) | |
383 | *p = 0xaaaaaaaa; | |
384 | ||
385 | for (p = pstart; p < pend; p++) { | |
386 | if (*p != 0xaaaaaaaa) { | |
387 | printf ("SDRAM test fails at: %08x\n", (uint) p); | |
388 | return 1; | |
389 | } | |
390 | } | |
391 | ||
392 | printf("SDRAM test phase 2:\n"); | |
393 | for (p = pstart; p < pend; p++) | |
394 | *p = 0x55555555; | |
395 | ||
396 | for (p = pstart; p < pend; p++) { | |
397 | if (*p != 0x55555555) { | |
398 | printf ("SDRAM test fails at: %08x\n", (uint) p); | |
399 | return 1; | |
400 | } | |
401 | } | |
402 | ||
403 | printf("SDRAM test passed.\n"); | |
404 | return 0; | |
405 | } | |
406 | #endif | |
407 | ||
408 | #if !defined(CONFIG_SPD_EEPROM) | |
409 | /************************************************************************* | |
410 | * fixed sdram init -- doesn't use serial presence detect. | |
411 | ************************************************************************/ | |
412 | long int fixed_sdram (void) | |
413 | { | |
414 | ||
415 | #define CFG_DDR_CONTROL 0xc2000000 | |
416 | ||
417 | #ifndef CFG_RAMBOOT | |
418 | volatile immap_t *immap = (immap_t *)CFG_IMMR; | |
419 | volatile ccsr_ddr_t *ddr= &immap->im_ddr; | |
420 | ||
421 | ddr->cs0_bnds = 0x00000007; | |
422 | ddr->cs1_bnds = 0x0010001f; | |
423 | ddr->cs2_bnds = 0x00000000; | |
424 | ddr->cs3_bnds = 0x00000000; | |
425 | ddr->cs0_config = 0x80000102; | |
426 | ddr->cs1_config = 0x80000102; | |
427 | ddr->cs2_config = 0x00000000; | |
428 | ddr->cs3_config = 0x00000000; | |
429 | ddr->timing_cfg_1 = 0x37334321; | |
430 | ddr->timing_cfg_2 = 0x00000800; | |
431 | ddr->sdram_cfg = 0x42000000; | |
432 | ddr->sdram_mode = 0x00000022; | |
433 | ddr->sdram_interval = 0x05200100; | |
434 | ddr->err_sbe = 0x00ff0000; | |
435 | #if defined (CONFIG_DDR_ECC) | |
436 | ddr->err_disable = 0x0000000D; | |
437 | #endif | |
438 | asm("sync;isync;msync"); | |
439 | udelay(500); | |
440 | #if defined (CONFIG_DDR_ECC) | |
441 | /* Enable ECC checking */ | |
442 | ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000); | |
443 | #else | |
444 | ddr->sdram_cfg = CFG_DDR_CONTROL; | |
445 | #endif | |
446 | asm("sync; isync; msync"); | |
447 | udelay(500); | |
448 | #endif | |
449 | return CFG_SDRAM_SIZE * 1024 * 1024; | |
450 | } | |
451 | #endif /* !defined(CONFIG_SPD_EEPROM) */ |