blob: 6b8aa68f5419829a93760e8bb629ebc1e94f17cd [file] [log] [blame]
wdenk0aeb8532004-10-10 21:21:55 +00001/*
2 * Copyright 2004 Freescale Semiconductor.
3 *
4 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
wdenk0aeb8532004-10-10 21:21:55 +000025#include <common.h>
26#include <pci.h>
27#include <asm/processor.h>
28#include <asm/immap_85xx.h>
Wolfgang Denkcd0bf802005-07-21 16:14:36 +020029#include <ioports.h>
wdenk0aeb8532004-10-10 21:21:55 +000030#include <spd.h>
31
32#include "../common/cadmus.h"
33#include "../common/eeprom.h"
34
Jon Loeliger77a4f6e2005-07-25 14:05:07 -050035#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
wdenk0aeb8532004-10-10 21:21:55 +000036extern void ddr_enable_ecc(unsigned int dram_size);
37#endif
38
39extern long int spd_sdram(void);
40
41void local_bus_init(void);
42void sdram_init(void);
43
Wolfgang Denkcd0bf802005-07-21 16:14:36 +020044/*
45 * I/O Port configuration table
46 *
47 * if conf is 1, then that port pin will be configured at boot time
48 * according to the five values podr/pdir/ppar/psor/pdat for that entry
49 */
50
51const iop_conf_t iop_conf_tab[4][32] = {
52
53 /* Port A configuration */
54 { /* conf ppar psor pdir podr pdat */
55 /* PA31 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxENB */
56 /* PA30 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 TxClav */
57 /* PA29 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 TxSOC */
58 /* PA28 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 RxENB */
59 /* PA27 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxSOC */
60 /* PA26 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 RxClav */
61 /* PA25 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
62 /* PA24 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
63 /* PA23 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
64 /* PA22 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
65 /* PA21 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
66 /* PA20 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
67 /* PA19 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
68 /* PA18 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
69 /* PA17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[7] */
70 /* PA16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[6] */
71 /* PA15 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[5] */
72 /* PA14 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[4] */
73 /* PA13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[3] */
74 /* PA12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[2] */
75 /* PA11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[1] */
76 /* PA10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXD[0] */
77 /* PA9 */ { 0, 1, 1, 1, 0, 0 }, /* FCC1 L1TXD */
78 /* PA8 */ { 0, 1, 1, 0, 0, 0 }, /* FCC1 L1RXD */
79 /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
80 /* PA6 */ { 0, 1, 1, 1, 0, 0 }, /* TDM A1 L1RSYNC */
81 /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
82 /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
83 /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
84 /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
85 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FREERUN */
86 /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
87 },
88
89 /* Port B configuration */
90 { /* conf ppar psor pdir podr pdat */
91 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
92 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
93 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
94 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
95 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
96 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
97 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
98 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
99 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
100 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
101 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
102 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
103 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
104 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
105 /* PB17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_DIV */
106 /* PB16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RX_ERR */
107 /* PB15 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_ERR */
108 /* PB14 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TX_EN */
109 /* PB13 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:COL */
110 /* PB12 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:CRS */
111 /* PB11 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
112 /* PB10 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
113 /* PB9 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
114 /* PB8 */ { 0, 1, 0, 0, 0, 0 }, /* FCC3:RXD */
115 /* PB7 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
116 /* PB6 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
117 /* PB5 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
118 /* PB4 */ { 0, 1, 0, 1, 0, 0 }, /* FCC3:TXD */
119 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
120 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
121 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
122 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
123 },
124
125 /* Port C */
126 { /* conf ppar psor pdir podr pdat */
127 /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
128 /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
129 /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
130 /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
131 /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* UART Clock in */
132 /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
133 /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
134 /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
135 /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
136 /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
137 /* PC21 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
138 /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
139 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK CLK13 */
140 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK14) */
141 /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
142 /* PC16 */ { 0, 1, 0, 0, 0, 0 }, /* FCC Tx Clock (CLK16) */
143 /* PC15 */ { 1, 1, 0, 0, 0, 0 }, /* PC15 */
144 /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
145 /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
146 /* PC12 */ { 0, 1, 0, 1, 0, 0 }, /* PC12 */
147 /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* LXT971 transmit control */
148 /* PC10 */ { 1, 0, 0, 1, 0, 0 }, /* FETHMDC */
149 /* PC9 */ { 1, 0, 0, 0, 0, 0 }, /* FETHMDIO */
150 /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
151 /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
152 /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
153 /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
154 /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
155 /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
156 /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
157 /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
158 /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
159 },
160
161 /* Port D */
162 { /* conf ppar psor pdir podr pdat */
163 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
164 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
165 /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
166 /* PD28 */ { 0, 1, 0, 0, 0, 0 }, /* PD28 */
167 /* PD27 */ { 0, 1, 1, 1, 0, 0 }, /* PD27 */
168 /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
169 /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
170 /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
171 /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
172 /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
173 /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
174 /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
175 /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
176 /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
177 /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
178 /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
179 /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
180 /* PD14 */ { 0, 0, 0, 1, 0, 0 }, /* LED */
181 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
182 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
183 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
184 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
185 /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
186 /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
187 /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
188 /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
189 /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
190 /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
191 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
192 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
193 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
194 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
195 }
196};
197
wdenkef3386f2004-10-10 21:27:30 +0000198int board_early_init_f (void)
wdenk0aeb8532004-10-10 21:21:55 +0000199{
wdenkef3386f2004-10-10 21:27:30 +0000200 return 0;
wdenk0aeb8532004-10-10 21:21:55 +0000201}
202
wdenkef3386f2004-10-10 21:27:30 +0000203int checkboard (void)
wdenk0aeb8532004-10-10 21:21:55 +0000204{
wdenkef3386f2004-10-10 21:27:30 +0000205 volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
206 volatile ccsr_gur_t *gur = &immap->im_gur;
wdenk0aeb8532004-10-10 21:21:55 +0000207
wdenkef3386f2004-10-10 21:27:30 +0000208 /* PCI slot in USER bits CSR[6:7] by convention. */
209 uint pci_slot = get_pci_slot ();
wdenk0aeb8532004-10-10 21:21:55 +0000210
wdenkef3386f2004-10-10 21:27:30 +0000211 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
212 uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
213 uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
214 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
wdenk0aeb8532004-10-10 21:21:55 +0000215
wdenkef3386f2004-10-10 21:27:30 +0000216 uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
wdenk0aeb8532004-10-10 21:21:55 +0000217
wdenkef3386f2004-10-10 21:27:30 +0000218 uint cpu_board_rev = get_cpu_board_revision ();
wdenk0aeb8532004-10-10 21:21:55 +0000219
wdenkef3386f2004-10-10 21:27:30 +0000220 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
221 get_board_version (), pci_slot);
wdenk0aeb8532004-10-10 21:21:55 +0000222
wdenkef3386f2004-10-10 21:27:30 +0000223 printf ("CPU Board Revision %d.%d (0x%04x)\n",
224 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
225 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
wdenk0aeb8532004-10-10 21:21:55 +0000226
wdenkef3386f2004-10-10 21:27:30 +0000227 printf (" PCI1: %d bit, %s MHz, %s\n",
228 (pci1_32) ? 32 : 64,
229 (pci1_speed == 33000000) ? "33" :
230 (pci1_speed == 66000000) ? "66" : "unknown",
231 pci1_clk_sel ? "sync" : "async");
wdenk0aeb8532004-10-10 21:21:55 +0000232
wdenkef3386f2004-10-10 21:27:30 +0000233 if (pci_dual) {
234 printf (" PCI2: 32 bit, 66 MHz, %s\n",
235 pci2_clk_sel ? "sync" : "async");
236 } else {
237 printf (" PCI2: disabled\n");
238 }
wdenk0aeb8532004-10-10 21:21:55 +0000239
wdenkef3386f2004-10-10 21:27:30 +0000240 /*
241 * Initialize local bus.
242 */
243 local_bus_init ();
wdenk0aeb8532004-10-10 21:21:55 +0000244
wdenkef3386f2004-10-10 21:27:30 +0000245 return 0;
wdenk0aeb8532004-10-10 21:21:55 +0000246}
247
wdenk0aeb8532004-10-10 21:21:55 +0000248long int
249initdram(int board_type)
250{
251 long dram_size = 0;
252 volatile immap_t *immap = (immap_t *)CFG_IMMR;
253
254 puts("Initializing\n");
255
256#if defined(CONFIG_DDR_DLL)
257 {
258 /*
259 * Work around to stabilize DDR DLL MSYNC_IN.
260 * Errata DDR9 seems to have been fixed.
261 * This is now the workaround for Errata DDR11:
262 * Override DLL = 1, Course Adj = 1, Tap Select = 0
263 */
264
265 volatile ccsr_gur_t *gur= &immap->im_gur;
266
267 gur->ddrdllcr = 0x81000000;
268 asm("sync;isync;msync");
269 udelay(200);
270 }
271#endif
wdenk0aeb8532004-10-10 21:21:55 +0000272 dram_size = spd_sdram();
273
Jon Loeliger77a4f6e2005-07-25 14:05:07 -0500274#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
wdenk0aeb8532004-10-10 21:21:55 +0000275 /*
276 * Initialize and enable DDR ECC.
277 */
278 ddr_enable_ecc(dram_size);
279#endif
wdenk0aeb8532004-10-10 21:21:55 +0000280 /*
281 * SDRAM Initialization
282 */
283 sdram_init();
284
285 puts(" DDR: ");
286 return dram_size;
287}
288
wdenk0aeb8532004-10-10 21:21:55 +0000289/*
290 * Initialize Local Bus
291 */
wdenk0aeb8532004-10-10 21:21:55 +0000292void
293local_bus_init(void)
294{
295 volatile immap_t *immap = (immap_t *)CFG_IMMR;
296 volatile ccsr_gur_t *gur = &immap->im_gur;
297 volatile ccsr_lbc_t *lbc = &immap->im_lbc;
298
299 uint clkdiv;
300 uint lbc_hz;
301 sys_info_t sysinfo;
302 uint temp_lbcdll;
303
304 /*
305 * Errata LBC11.
306 * Fix Local Bus clock glitch when DLL is enabled.
307 *
308 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
309 * If localbus freq is > 133Mhz, DLL can be safely enabled.
310 * Between 66 and 133, the DLL is enabled with an override workaround.
311 */
312
313 get_sys_info(&sysinfo);
314 clkdiv = lbc->lcrr & 0x0f;
315 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
316
317 if (lbc_hz < 66) {
318 lbc->lcrr |= 0x80000000; /* DLL Bypass */
319
320 } else if (lbc_hz >= 133) {
321 lbc->lcrr &= (~0x80000000); /* DLL Enabled */
322
323 } else {
324 lbc->lcrr &= (~0x8000000); /* DLL Enabled */
325 udelay(200);
326
327 /*
328 * Sample LBC DLL ctrl reg, upshift it to set the
329 * override bits.
330 */
331 temp_lbcdll = gur->lbcdllcr;
332 gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000);
333 asm("sync;isync;msync");
334 }
335}
336
wdenk0aeb8532004-10-10 21:21:55 +0000337/*
338 * Initialize SDRAM memory on the Local Bus.
339 */
wdenk0aeb8532004-10-10 21:21:55 +0000340void
341sdram_init(void)
342{
343#if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM)
344
345 uint idx;
346 volatile immap_t *immap = (immap_t *)CFG_IMMR;
347 volatile ccsr_lbc_t *lbc = &immap->im_lbc;
348 uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
349 uint cpu_board_rev;
350 uint lsdmr_common;
351
352 puts(" SDRAM: ");
353
354 print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
355
356 /*
357 * Setup SDRAM Base and Option Registers
358 */
359 lbc->or2 = CFG_OR2_PRELIM;
360 asm("msync");
361
362 lbc->br2 = CFG_BR2_PRELIM;
363 asm("msync");
364
365 lbc->lbcr = CFG_LBC_LBCR;
366 asm("msync");
367
368
369 lbc->lsrt = CFG_LBC_LSRT;
370 lbc->mrtpr = CFG_LBC_MRTPR;
371 asm("msync");
372
373 /*
374 * Determine which address lines to use baed on CPU board rev.
375 */
376 cpu_board_rev = get_cpu_board_revision();
377 lsdmr_common = CFG_LBC_LSDMR_COMMON;
378 if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_0) {
379 lsdmr_common |= CFG_LBC_LSDMR_BSMA1617;
380 } else if (cpu_board_rev == MPC85XX_CPU_BOARD_REV_1_1) {
381 lsdmr_common |= CFG_LBC_LSDMR_BSMA1516;
382 } else {
383 /*
384 * Assume something unable to identify itself is
385 * really old, and likely has lines 16/17 mapped.
386 */
387 lsdmr_common |= CFG_LBC_LSDMR_BSMA1617;
388 }
389
390 /*
391 * Issue PRECHARGE ALL command.
392 */
393 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_PCHALL;
394 asm("sync;msync");
395 *sdram_addr = 0xff;
396 ppcDcbf((unsigned long) sdram_addr);
397 udelay(100);
398
399 /*
400 * Issue 8 AUTO REFRESH commands.
401 */
402 for (idx = 0; idx < 8; idx++) {
403 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_ARFRSH;
404 asm("sync;msync");
405 *sdram_addr = 0xff;
406 ppcDcbf((unsigned long) sdram_addr);
407 udelay(100);
408 }
409
410 /*
411 * Issue 8 MODE-set command.
412 */
413 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_MRW;
414 asm("sync;msync");
415 *sdram_addr = 0xff;
416 ppcDcbf((unsigned long) sdram_addr);
417 udelay(100);
418
419 /*
420 * Issue NORMAL OP command.
421 */
422 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_NORMAL;
423 asm("sync;msync");
424 *sdram_addr = 0xff;
425 ppcDcbf((unsigned long) sdram_addr);
426 udelay(200); /* Overkill. Must wait > 200 bus cycles */
427
428#endif /* enable SDRAM init */
429}
430
wdenk0aeb8532004-10-10 21:21:55 +0000431#if defined(CFG_DRAM_TEST)
432int
433testdram(void)
434{
435 uint *pstart = (uint *) CFG_MEMTEST_START;
436 uint *pend = (uint *) CFG_MEMTEST_END;
437 uint *p;
438
439 printf("Testing DRAM from 0x%08x to 0x%08x\n",
440 CFG_MEMTEST_START,
441 CFG_MEMTEST_END);
442
443 printf("DRAM test phase 1:\n");
444 for (p = pstart; p < pend; p++)
445 *p = 0xaaaaaaaa;
446
447 for (p = pstart; p < pend; p++) {
448 if (*p != 0xaaaaaaaa) {
449 printf ("DRAM test fails at: %08x\n", (uint) p);
450 return 1;
451 }
452 }
453
454 printf("DRAM test phase 2:\n");
455 for (p = pstart; p < pend; p++)
456 *p = 0x55555555;
457
458 for (p = pstart; p < pend; p++) {
459 if (*p != 0x55555555) {
460 printf ("DRAM test fails at: %08x\n", (uint) p);
461 return 1;
462 }
463 }
464
465 printf("DRAM test passed.\n");
466 return 0;
467}
468#endif
469
wdenk0aeb8532004-10-10 21:21:55 +0000470#if defined(CONFIG_PCI)
471
472/*
473 * Initialize PCI Devices, report devices found.
474 */
475
476#ifndef CONFIG_PCI_PNP
477static struct pci_config_table pci_mpc85xxcds_config_table[] = {
478 { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
479 PCI_IDSEL_NUMBER, PCI_ANY_ID,
480 pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
481 PCI_ENET0_MEMADDR,
482 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
483 } },
484 { }
485};
486#endif
487
wdenk0aeb8532004-10-10 21:21:55 +0000488static struct pci_controller hose = {
489#ifndef CONFIG_PCI_PNP
490 config_table: pci_mpc85xxcds_config_table,
491#endif
492};
493
494#endif /* CONFIG_PCI */
495
wdenk0aeb8532004-10-10 21:21:55 +0000496void
497pci_init_board(void)
498{
499#ifdef CONFIG_PCI
500 extern void pci_mpc85xx_init(struct pci_controller *hose);
501
502 pci_mpc85xx_init(&hose);
503#endif
504}