blob: ed7139d87eb4a7a35740a830c93799d661456aad [file] [log] [blame]
wdenk42d1f032003-10-15 23:53:47 +00001/*
wdenk97d80fc2004-06-09 00:34:46 +00002 * Copyright 2004 Freescale Semiconductor.
wdenk42d1f032003-10-15 23:53:47 +00003 * (C) Copyright 2003,Motorola Inc.
4 * Xianghua Xiao, (X.Xiao@motorola.com)
5 *
6 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27
wdenk42d1f032003-10-15 23:53:47 +000028#include <common.h>
wdenk9aea9532004-08-01 23:02:45 +000029#include <pci.h>
wdenk42d1f032003-10-15 23:53:47 +000030#include <asm/processor.h>
31#include <asm/immap_85xx.h>
32#include <ioports.h>
33#include <spd.h>
34#include <miiphy.h>
35
wdenk0ac6f8b2004-07-09 23:27:13 +000036#if defined(CONFIG_DDR_ECC)
37extern void ddr_enable_ecc(unsigned int dram_size);
38#endif
39
40extern long int spd_sdram(void);
41
wdenk9aea9532004-08-01 23:02:45 +000042void local_bus_init(void);
wdenk0ac6f8b2004-07-09 23:27:13 +000043void sdram_init(void);
44long int fixed_sdram(void);
45
wdenk42d1f032003-10-15 23:53:47 +000046
47/*
48 * I/O Port configuration table
49 *
50 * if conf is 1, then that port pin will be configured at boot time
51 * according to the five values podr/pdir/ppar/psor/pdat for that entry
52 */
53
54const iop_conf_t iop_conf_tab[4][32] = {
55
56 /* Port A configuration */
57 { /* conf ppar psor pdir podr pdat */
58 /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
59 /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
60 /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
61 /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
62 /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
63 /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
64 /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
65 /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
66 /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
67 /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
68 /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
69 /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
70 /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
71 /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
72 /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
73 /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
74 /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
75 /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
76 /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
77 /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
78 /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
79 /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
80 /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
81 /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
82 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
83 /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
84 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
85 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
86 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
87 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
88 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
89 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
90 },
91
92 /* Port B configuration */
93 { /* conf ppar psor pdir podr pdat */
94 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
95 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
96 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
97 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
98 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
99 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
100 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
101 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
102 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
103 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
104 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
105 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
106 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
107 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
108 /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
109 /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
110 /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
111 /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
112 /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
113 /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
114 /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
115 /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
116 /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
117 /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
118 /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
119 /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
120 /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
121 /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
122 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
123 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
124 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
125 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
126 },
127
128 /* Port C */
129 { /* conf ppar psor pdir podr pdat */
130 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
131 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
132 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
133 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
134 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
135 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
136 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
137 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
138 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
139 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
140 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
141 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
142 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
143 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
144 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
145 /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
146 /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
147 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
148 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
149 /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
150 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
151 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
152 /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
153 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
154 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
155 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
156 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
157 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
158 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
159 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
160 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
161 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
162 },
163
164 /* Port D */
165 { /* conf ppar psor pdir podr pdat */
166 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
167 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
168 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
169 /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
170 /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
171 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
172 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
173 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
174 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
175 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
176 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
177 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
178 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
179 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
180 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
181 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
182 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
183 /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
184 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
185 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
186 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
187 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
188 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
189 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
190 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
191 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
192 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
193 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
194 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
195 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
196 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
197 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
198 }
199};
200
wdenk0ac6f8b2004-07-09 23:27:13 +0000201
202/*
203 * MPC8560ADS Board Status & Control Registers
204 */
205typedef struct bcsr_ {
wdenk42d1f032003-10-15 23:53:47 +0000206 volatile unsigned char bcsr0;
207 volatile unsigned char bcsr1;
208 volatile unsigned char bcsr2;
209 volatile unsigned char bcsr3;
210 volatile unsigned char bcsr4;
211 volatile unsigned char bcsr5;
212} bcsr_t;
213
wdenk9aea9532004-08-01 23:02:45 +0000214
wdenkc837dcb2004-01-20 23:12:12 +0000215int board_early_init_f (void)
wdenk42d1f032003-10-15 23:53:47 +0000216{
217#if defined(CONFIG_PCI)
wdenk9aea9532004-08-01 23:02:45 +0000218 volatile immap_t *immr = (immap_t *)CFG_IMMR;
219 volatile ccsr_pcix_t *pci = &immr->im_pcix;
wdenk42d1f032003-10-15 23:53:47 +0000220
wdenk9aea9532004-08-01 23:02:45 +0000221 pci->peer &= 0xffffffdf; /* disable master abort */
wdenk42d1f032003-10-15 23:53:47 +0000222#endif
wdenk0ac6f8b2004-07-09 23:27:13 +0000223
wdenk9aea9532004-08-01 23:02:45 +0000224 return 0;
wdenk42d1f032003-10-15 23:53:47 +0000225}
226
227void reset_phy (void)
228{
229#if defined(CONFIG_ETHER_ON_FCC) /* avoid compile warnings for now */
230 volatile bcsr_t *bcsr = (bcsr_t *) CFG_BCSR;
231#endif
232 /* reset Giga bit Ethernet port if needed here */
233
234 /* reset the CPM FEC port */
235#if (CONFIG_ETHER_INDEX == 2)
236 bcsr->bcsr2 &= ~FETH2_RST;
237 udelay(2);
238 bcsr->bcsr2 |= FETH2_RST;
239 udelay(1000);
240#elif (CONFIG_ETHER_INDEX == 3)
241 bcsr->bcsr3 &= ~FETH3_RST;
242 udelay(2);
243 bcsr->bcsr3 |= FETH3_RST;
244 udelay(1000);
245#endif
246#if defined(CONFIG_MII) && defined(CONFIG_ETHER_ON_FCC)
247 miiphy_reset(0x0); /* reset PHY */
248 miiphy_write(0, PHY_MIPSCR, 0xf028); /* change PHY address to 0x02 */
249 miiphy_write(0x02, PHY_BMCR, PHY_BMCR_AUTON | PHY_BMCR_RST_NEG);
250#endif /* CONFIG_MII */
251}
252
wdenk9aea9532004-08-01 23:02:45 +0000253
wdenk42d1f032003-10-15 23:53:47 +0000254int checkboard (void)
255{
wdenk97d80fc2004-06-09 00:34:46 +0000256 puts("Board: ADS\n");
wdenk0ac6f8b2004-07-09 23:27:13 +0000257
258#ifdef CONFIG_PCI
259 printf(" PCI1: 32 bit, %d MHz (compiled)\n",
260 CONFIG_SYS_CLK_FREQ / 1000000);
261#else
262 printf(" PCI1: disabled\n");
263#endif
wdenk9aea9532004-08-01 23:02:45 +0000264
265 /*
266 * Initialize local bus.
267 */
268 local_bus_init();
269
wdenk97d80fc2004-06-09 00:34:46 +0000270 return 0;
wdenk42d1f032003-10-15 23:53:47 +0000271}
272
273
wdenk0ac6f8b2004-07-09 23:27:13 +0000274long int
275initdram(int board_type)
wdenk42d1f032003-10-15 23:53:47 +0000276{
277 long dram_size = 0;
278 extern long spd_sdram (void);
279 volatile immap_t *immap = (immap_t *)CFG_IMMR;
wdenk0ac6f8b2004-07-09 23:27:13 +0000280
281 puts("Initializing\n");
wdenk97d80fc2004-06-09 00:34:46 +0000282
wdenk42d1f032003-10-15 23:53:47 +0000283#if defined(CONFIG_DDR_DLL)
wdenk0ac6f8b2004-07-09 23:27:13 +0000284 {
wdenk9aea9532004-08-01 23:02:45 +0000285 volatile ccsr_gur_t *gur= &immap->im_gur;
286 uint temp_ddrdll = 0;
wdenk42d1f032003-10-15 23:53:47 +0000287
wdenk9aea9532004-08-01 23:02:45 +0000288 /*
289 * Work around to stabilize DDR DLL
290 */
291 temp_ddrdll = gur->ddrdllcr;
292 gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000;
293 asm("sync;isync;msync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000294 }
wdenk42d1f032003-10-15 23:53:47 +0000295#endif
296
297#if defined(CONFIG_SPD_EEPROM)
298 dram_size = spd_sdram ();
299#else
300 dram_size = fixed_sdram ();
301#endif
302
wdenk0ac6f8b2004-07-09 23:27:13 +0000303#if defined(CONFIG_DDR_ECC)
304 /*
305 * Initialize and enable DDR ECC.
306 */
307 ddr_enable_ecc(dram_size);
308#endif
309
310 /*
311 * Initialize SDRAM.
312 */
313 sdram_init();
314
315 puts(" DDR: ");
316 return dram_size;
317}
318
319
320/*
wdenk9aea9532004-08-01 23:02:45 +0000321 * Initialize Local Bus
wdenk0ac6f8b2004-07-09 23:27:13 +0000322 */
323
wdenk9aea9532004-08-01 23:02:45 +0000324void
325local_bus_init(void)
wdenk0ac6f8b2004-07-09 23:27:13 +0000326{
wdenk9aea9532004-08-01 23:02:45 +0000327 volatile immap_t *immap = (immap_t *)CFG_IMMR;
328 volatile ccsr_gur_t *gur = &immap->im_gur;
wdenk0ac6f8b2004-07-09 23:27:13 +0000329 volatile ccsr_lbc_t *lbc = &immap->im_lbc;
wdenk0ac6f8b2004-07-09 23:27:13 +0000330
wdenk9aea9532004-08-01 23:02:45 +0000331 uint clkdiv;
332 uint lbc_hz;
333 sys_info_t sysinfo;
wdenk0ac6f8b2004-07-09 23:27:13 +0000334
335 /*
wdenk9aea9532004-08-01 23:02:45 +0000336 * Errata LBC11.
337 * Fix Local Bus clock glitch when DLL is enabled.
wdenk0ac6f8b2004-07-09 23:27:13 +0000338 *
wdenk9aea9532004-08-01 23:02:45 +0000339 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
340 * If localbus freq is > 133Mhz, DLL can be safely enabled.
341 * Between 66 and 133, the DLL is enabled with an override workaround.
wdenk0ac6f8b2004-07-09 23:27:13 +0000342 */
wdenk9aea9532004-08-01 23:02:45 +0000343
344 get_sys_info(&sysinfo);
345 clkdiv = lbc->lcrr & 0x0f;
346 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
347
348 if (lbc_hz < 66) {
349 lbc->lcrr = CFG_LBC_LCRR | 0x80000000; /* DLL Bypass */
350
351 } else if (lbc_hz >= 133) {
352 lbc->lcrr = CFG_LBC_LCRR & (~0x80000000); /* DLL Enabled */
wdenk0ac6f8b2004-07-09 23:27:13 +0000353
wdenk42d1f032003-10-15 23:53:47 +0000354 } else {
wdenk0ac6f8b2004-07-09 23:27:13 +0000355 /*
356 * On REV1 boards, need to change CLKDIV before enable DLL.
357 * Default CLKDIV is 8, change it to 4 temporarily.
358 */
wdenk9aea9532004-08-01 23:02:45 +0000359 uint pvr = get_pvr();
wdenk0ac6f8b2004-07-09 23:27:13 +0000360 uint temp_lbcdll = 0;
wdenk97d80fc2004-06-09 00:34:46 +0000361
362 if (pvr == PVR_85xx_REV1) {
wdenk9aea9532004-08-01 23:02:45 +0000363 /* FIXME: Justify the high bit here. */
wdenk0ac6f8b2004-07-09 23:27:13 +0000364 lbc->lcrr = 0x10000004;
wdenk97d80fc2004-06-09 00:34:46 +0000365 }
wdenk0ac6f8b2004-07-09 23:27:13 +0000366
wdenk9aea9532004-08-01 23:02:45 +0000367 lbc->lcrr = CFG_LBC_LCRR & (~0x80000000);/* DLL Enabled */
368 udelay(200);
369
370 /*
371 * Sample LBC DLL ctrl reg, upshift it to set the
372 * override bits.
373 */
wdenk42d1f032003-10-15 23:53:47 +0000374 temp_lbcdll = gur->lbcdllcr;
wdenk9aea9532004-08-01 23:02:45 +0000375 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
376 asm("sync;isync;msync");
wdenk42d1f032003-10-15 23:53:47 +0000377 }
wdenk9aea9532004-08-01 23:02:45 +0000378}
379
380
381/*
382 * Initialize SDRAM memory on the Local Bus.
383 */
384
385void
386sdram_init(void)
387{
388 volatile immap_t *immap = (immap_t *)CFG_IMMR;
389 volatile ccsr_lbc_t *lbc= &immap->im_lbc;
390 uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
391
392 puts(" SDRAM: ");
393 print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
wdenk0ac6f8b2004-07-09 23:27:13 +0000394
395 /*
396 * Setup SDRAM Base and Option Registers
397 */
398 lbc->or2 = CFG_OR2_PRELIM;
wdenk42d1f032003-10-15 23:53:47 +0000399 lbc->br2 = CFG_BR2_PRELIM;
400 lbc->lbcr = CFG_LBC_LBCR;
wdenk9aea9532004-08-01 23:02:45 +0000401 asm("msync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000402
wdenk42d1f032003-10-15 23:53:47 +0000403 lbc->lsrt = CFG_LBC_LSRT;
wdenk42d1f032003-10-15 23:53:47 +0000404 lbc->mrtpr = CFG_LBC_MRTPR;
wdenk9aea9532004-08-01 23:02:45 +0000405 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000406
407 /*
408 * Configure the SDRAM controller.
409 */
410 lbc->lsdmr = CFG_LBC_LSDMR_1;
wdenk9aea9532004-08-01 23:02:45 +0000411 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000412 *sdram_addr = 0xff;
wdenk9aea9532004-08-01 23:02:45 +0000413 ppcDcbf((unsigned long) sdram_addr);
414 udelay(100);
wdenk0ac6f8b2004-07-09 23:27:13 +0000415
416 lbc->lsdmr = CFG_LBC_LSDMR_2;
wdenk9aea9532004-08-01 23:02:45 +0000417 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000418 *sdram_addr = 0xff;
wdenk9aea9532004-08-01 23:02:45 +0000419 ppcDcbf((unsigned long) sdram_addr);
420 udelay(100);
wdenk0ac6f8b2004-07-09 23:27:13 +0000421
422 lbc->lsdmr = CFG_LBC_LSDMR_3;
wdenk9aea9532004-08-01 23:02:45 +0000423 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000424 *sdram_addr = 0xff;
wdenk9aea9532004-08-01 23:02:45 +0000425 ppcDcbf((unsigned long) sdram_addr);
426 udelay(100);
wdenk0ac6f8b2004-07-09 23:27:13 +0000427
428 lbc->lsdmr = CFG_LBC_LSDMR_4;
wdenk9aea9532004-08-01 23:02:45 +0000429 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000430 *sdram_addr = 0xff;
wdenk9aea9532004-08-01 23:02:45 +0000431 ppcDcbf((unsigned long) sdram_addr);
432 udelay(100);
wdenk0ac6f8b2004-07-09 23:27:13 +0000433
434 lbc->lsdmr = CFG_LBC_LSDMR_5;
wdenk9aea9532004-08-01 23:02:45 +0000435 asm("sync");
wdenk0ac6f8b2004-07-09 23:27:13 +0000436 *sdram_addr = 0xff;
wdenk9aea9532004-08-01 23:02:45 +0000437 ppcDcbf((unsigned long) sdram_addr);
438 udelay(100);
wdenk42d1f032003-10-15 23:53:47 +0000439}
440
441
442#if defined(CFG_DRAM_TEST)
443int testdram (void)
444{
445 uint *pstart = (uint *) CFG_MEMTEST_START;
446 uint *pend = (uint *) CFG_MEMTEST_END;
447 uint *p;
448
449 printf("SDRAM test phase 1:\n");
450 for (p = pstart; p < pend; p++)
451 *p = 0xaaaaaaaa;
452
453 for (p = pstart; p < pend; p++) {
454 if (*p != 0xaaaaaaaa) {
455 printf ("SDRAM test fails at: %08x\n", (uint) p);
456 return 1;
457 }
458 }
459
460 printf("SDRAM test phase 2:\n");
461 for (p = pstart; p < pend; p++)
462 *p = 0x55555555;
463
464 for (p = pstart; p < pend; p++) {
465 if (*p != 0x55555555) {
466 printf ("SDRAM test fails at: %08x\n", (uint) p);
467 return 1;
468 }
469 }
470
471 printf("SDRAM test passed.\n");
472 return 0;
473}
474#endif
475
wdenk0ac6f8b2004-07-09 23:27:13 +0000476
wdenk42d1f032003-10-15 23:53:47 +0000477#if !defined(CONFIG_SPD_EEPROM)
478/*************************************************************************
479 * fixed sdram init -- doesn't use serial presence detect.
480 ************************************************************************/
481long int fixed_sdram (void)
482{
483 #ifndef CFG_RAMBOOT
484 volatile immap_t *immap = (immap_t *)CFG_IMMR;
485 volatile ccsr_ddr_t *ddr= &immap->im_ddr;
486
487 ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
488 ddr->cs0_config = CFG_DDR_CS0_CONFIG;
489 ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
490 ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
491 ddr->sdram_mode = CFG_DDR_MODE;
492 ddr->sdram_interval = CFG_DDR_INTERVAL;
493 #if defined (CONFIG_DDR_ECC)
494 ddr->err_disable = 0x0000000D;
495 ddr->err_sbe = 0x00ff0000;
496 #endif
497 asm("sync;isync;msync");
498 udelay(500);
499 #if defined (CONFIG_DDR_ECC)
500 /* Enable ECC checking */
501 ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000);
502 #else
503 ddr->sdram_cfg = CFG_DDR_CONTROL;
504 #endif
505 asm("sync; isync; msync");
506 udelay(500);
507 #endif
wdenk0ac6f8b2004-07-09 23:27:13 +0000508 return CFG_SDRAM_SIZE * 1024 * 1024;
wdenk42d1f032003-10-15 23:53:47 +0000509}
510#endif /* !defined(CONFIG_SPD_EEPROM) */
wdenk9aea9532004-08-01 23:02:45 +0000511
512
513#if defined(CONFIG_PCI)
514/*
515 * Initialize PCI Devices, report devices found.
516 */
517
518#ifndef CONFIG_PCI_PNP
519static struct pci_config_table pci_mpc85xxads_config_table[] = {
520 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
521 PCI_IDSEL_NUMBER, PCI_ANY_ID,
522 pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
523 PCI_ENET0_MEMADDR,
524 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
525 } },
526 { }
527};
528#endif
529
530
531static struct pci_controller hose = {
532#ifndef CONFIG_PCI_PNP
533 config_table: pci_mpc85xxads_config_table,
534#endif
535};
536
537#endif /* CONFIG_PCI */
538
539
540void
541pci_init_board(void)
542{
543#ifdef CONFIG_PCI
544 extern void pci_mpc85xx_init(struct pci_controller *hose);
545
546 pci_mpc85xx_init(&hose);
547#endif /* CONFIG_PCI */
548}