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gerrit.cesnet.cz / github / trini / u-boot / 07bc20560cb9d3d186cca268c05c82762e8c55ad / . / board / sbc8560 / sbc8560.c
blob: e8b9929e77118b1432c3185bb0dad7e4168d2953 [file] [log] [blame]
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]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
30extern 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
39long 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
48const 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
195int 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
206void 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)
Marian Balakowicz63ff0042005-10-28 22:30:33 +0200[diff] [blame]226 /* reset PHY */
227 miiphy_reset("FCC1 ETHERNET", 0x0);
228
229 /* change PHY address to 0x02 */
230 bb_miiphy_write(NULL, 0, PHY_MIPSCR, 0xf028);
231
232 bb_miiphy_write(NULL, 0x02, PHY_BMCR,
233 PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]234#endif /* CONFIG_MII */
235}
236
237int checkboard (void)
238{
239 sys_info_t sysinfo;
240
241 get_sys_info (&sysinfo);
242
wdenkc15f3122004-10-10 22:44:24 +0000[diff] [blame]243#ifdef CONFIG_SBC8560
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]244 printf ("Board: Wind River SBC8560 Board\n");
wdenkc15f3122004-10-10 22:44:24 +0000[diff] [blame]245#else
246 printf ("Board: Wind River SBC8540 Board\n");
247#endif
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]248 printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
249 printf ("\tCCB: %lu MHz\n", sysinfo.freqSystemBus / 1000000);
250 printf ("\tDDR: %lu MHz\n", sysinfo.freqSystemBus / 2000000);
251 if((CFG_LBC_LCRR & 0x0f) == 2 || (CFG_LBC_LCRR & 0x0f) == 4 \
252 || (CFG_LBC_LCRR & 0x0f) == 8) {
253 printf ("\tLBC: %lu MHz\n", sysinfo.freqSystemBus / 1000000 /(CFG_LBC_LCRR & 0x0f));
254 } else {
255 printf("\tLBC: unknown\n");
256 }
257 printf("\tCPM: %lu Mhz\n", sysinfo.freqSystemBus / 1000000);
258 printf("L1 D-cache 32KB, L1 I-cache 32KB enabled.\n");
259 return (0);
260}
261
262
263long int initdram (int board_type)
264{
265 long dram_size = 0;
266 extern long spd_sdram (void);
267 volatile immap_t *immap = (immap_t *)CFG_IMMR;
wdenk281e00a2004-08-01 22:48:16 +0000[diff] [blame]268#if 0
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]269#if !defined(CONFIG_RAM_AS_FLASH)
270 volatile ccsr_lbc_t *lbc= &immap->im_lbc;
271 sys_info_t sysinfo;
272 uint temp_lbcdll = 0;
273#endif
wdenk281e00a2004-08-01 22:48:16 +0000[diff] [blame]274#endif /* 0 */
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]275#if !defined(CONFIG_RAM_AS_FLASH) || defined(CONFIG_DDR_DLL)
276 volatile ccsr_gur_t *gur= &immap->im_gur;
277#endif
278#if defined(CONFIG_DDR_DLL)
279 uint temp_ddrdll = 0;
280
281 /* Work around to stabilize DDR DLL */
282 temp_ddrdll = gur->ddrdllcr;
283 gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
284 asm("sync;isync;msync");
285#endif
286
287#if defined(CONFIG_SPD_EEPROM)
288 dram_size = spd_sdram ();
289#else
290 dram_size = fixed_sdram ();
291#endif
292
wdenk281e00a2004-08-01 22:48:16 +0000[diff] [blame]293#if 0
wdenk8b07a112004-07-10 21:45:47 +0000[diff] [blame]294#if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus SDRAM is not emulating flash */
295 get_sys_info(&sysinfo);
296 /* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */
297 if(sysinfo.freqSystemBus/(CFG_LBC_LCRR & 0x0f) < 66000000) {
298 lbc->lcrr = (CFG_LBC_LCRR & 0x0fffffff)| 0x80000000;
299 } else {
300#if defined(CONFIG_MPC85xx_REV1) /* need change CLKDIV before enable DLL */
301 lbc->lcrr = 0x10000004; /* default CLKDIV is 8, change it to 4 temporarily */
302#endif
303 lbc->lcrr = CFG_LBC_LCRR & 0x7fffffff;
304 udelay(200);
305 temp_lbcdll = gur->lbcdllcr;
306 gur->lbcdllcr = ((temp_lbcdll & 0xff) << 16 ) | 0x80000000;
307 asm("sync;isync;msync");
308 }
309 lbc->or2 = CFG_OR2_PRELIM; /* 64MB SDRAM */
310 lbc->br2 = CFG_BR2_PRELIM;
311 lbc->lbcr = CFG_LBC_LBCR;
312 lbc->lsdmr = CFG_LBC_LSDMR_1;
313 asm("sync");
314 (unsigned int) * (ulong *)0 = 0x000000ff;
315 lbc->lsdmr = CFG_LBC_LSDMR_2;
316 asm("sync");
317 (unsigned int) * (ulong *)0 = 0x000000ff;
318 lbc->lsdmr = CFG_LBC_LSDMR_3;
319 asm("sync");
320 (unsigned int) * (ulong *)0 = 0x000000ff;
321 lbc->lsdmr = CFG_LBC_LSDMR_4;
322 asm("sync");
323 (unsigned int) * (ulong *)0 = 0x000000ff;
324 lbc->lsdmr = CFG_LBC_LSDMR_5;
325 asm("sync");
326 lbc->lsrt = CFG_LBC_LSRT;
327 asm("sync");
328 lbc->mrtpr = CFG_LBC_MRTPR;
329 asm("sync");
330#endif
331#endif
332
333#if defined(CONFIG_DDR_ECC)
334 {
335 /* Initialize all of memory for ECC, then
336 * enable errors */
337 uint *p = 0;
338 uint i = 0;
339 volatile immap_t *immap = (immap_t *)CFG_IMMR;
340 volatile ccsr_ddr_t *ddr= &immap->im_ddr;
341 dma_init();
342 for (*p = 0; p < (uint *)(8 * 1024); p++) {
343 if (((unsigned int)p & 0x1f) == 0) { dcbz(p); }
344 *p = (unsigned int)0xdeadbeef;
345 if (((unsigned int)p & 0x1c) == 0x1c) { dcbf(p); }
346 }
347
348 /* 8K */
349 dma_xfer((uint *)0x2000,0x2000,(uint *)0);
350 /* 16K */
351 dma_xfer((uint *)0x4000,0x4000,(uint *)0);
352 /* 32K */
353 dma_xfer((uint *)0x8000,0x8000,(uint *)0);
354 /* 64K */
355 dma_xfer((uint *)0x10000,0x10000,(uint *)0);
356 /* 128k */
357 dma_xfer((uint *)0x20000,0x20000,(uint *)0);
358 /* 256k */
359 dma_xfer((uint *)0x40000,0x40000,(uint *)0);
360 /* 512k */
361 dma_xfer((uint *)0x80000,0x80000,(uint *)0);
362 /* 1M */
363 dma_xfer((uint *)0x100000,0x100000,(uint *)0);
364 /* 2M */
365 dma_xfer((uint *)0x200000,0x200000,(uint *)0);
366 /* 4M */
367 dma_xfer((uint *)0x400000,0x400000,(uint *)0);
368
369 for (i = 1; i < dram_size / 0x800000; i++) {
370 dma_xfer((uint *)(0x800000*i),0x800000,(uint *)0);
371 }
372
373 /* Enable errors for ECC */
374 ddr->err_disable = 0x00000000;
375 asm("sync;isync;msync");
376 }
377#endif
378
379 return dram_size;
380}
381
382
383#if defined(CFG_DRAM_TEST)
384int testdram (void)
385{
386 uint *pstart = (uint *) CFG_MEMTEST_START;
387 uint *pend = (uint *) CFG_MEMTEST_END;
388 uint *p;
389
390 printf("SDRAM test phase 1:\n");
391 for (p = pstart; p < pend; p++)
392 *p = 0xaaaaaaaa;
393
394 for (p = pstart; p < pend; p++) {
395 if (*p != 0xaaaaaaaa) {
396 printf ("SDRAM test fails at: %08x\n", (uint) p);
397 return 1;
398 }
399 }
400
401 printf("SDRAM test phase 2:\n");
402 for (p = pstart; p < pend; p++)
403 *p = 0x55555555;
404
405 for (p = pstart; p < pend; p++) {
406 if (*p != 0x55555555) {
407 printf ("SDRAM test fails at: %08x\n", (uint) p);
408 return 1;
409 }
410 }
411
412 printf("SDRAM test passed.\n");
413 return 0;
414}
415#endif
416
417#if !defined(CONFIG_SPD_EEPROM)
418/*************************************************************************
419 * fixed sdram init -- doesn't use serial presence detect.
420 ************************************************************************/
421long int fixed_sdram (void)
422{
423
424#define CFG_DDR_CONTROL 0xc2000000
425
426 #ifndef CFG_RAMBOOT
427 volatile immap_t *immap = (immap_t *)CFG_IMMR;
428 volatile ccsr_ddr_t *ddr= &immap->im_ddr;
429
430 ddr->cs0_bnds = 0x00000007;
431 ddr->cs1_bnds = 0x0010001f;
432 ddr->cs2_bnds = 0x00000000;
433 ddr->cs3_bnds = 0x00000000;
434 ddr->cs0_config = 0x80000102;
435 ddr->cs1_config = 0x80000102;
436 ddr->cs2_config = 0x00000000;
437 ddr->cs3_config = 0x00000000;
438 ddr->timing_cfg_1 = 0x37334321;
439 ddr->timing_cfg_2 = 0x00000800;
440 ddr->sdram_cfg = 0x42000000;
441 ddr->sdram_mode = 0x00000022;
442 ddr->sdram_interval = 0x05200100;
443 ddr->err_sbe = 0x00ff0000;
444 #if defined (CONFIG_DDR_ECC)
445 ddr->err_disable = 0x0000000D;
446 #endif
447 asm("sync;isync;msync");
448 udelay(500);
449 #if defined (CONFIG_DDR_ECC)
450 /* Enable ECC checking */
451 ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
452 #else
453 ddr->sdram_cfg = CFG_DDR_CONTROL;
454 #endif
455 asm("sync; isync; msync");
456 udelay(500);
457 #endif
458 return CFG_SDRAM_SIZE * 1024 * 1024;
459}
460#endif /* !defined(CONFIG_SPD_EEPROM) */