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fsl_esdhc: Fix esdhc disabled problem on some platforms
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11c45ebd 1/*
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2 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
3 *
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4 * Copyright 2007 Embedded Specialties, Inc.
5 *
6 * Copyright 2004, 2007 Freescale Semiconductor.
7 *
8 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
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#include <common.h>
30#include <pci.h>
31#include <asm/processor.h>
32#include <asm/immap_85xx.h>
c8514622 33#include <asm/fsl_pci.h>
33b9079b 34#include <asm/fsl_ddr_sdram.h>
a30a549a 35#include <spd_sdram.h>
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36#include <netdev.h>
37#include <tsec.h>
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38#include <miiphy.h>
39#include <libfdt.h>
40#include <fdt_support.h>
41
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42DECLARE_GLOBAL_DATA_PTR;
43
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44void local_bus_init(void);
45void sdram_init(void);
46long int fixed_sdram (void);
47
48int board_early_init_f (void)
49{
50 return 0;
51}
52
53int checkboard (void)
54{
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55 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
56 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
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57
58 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
0c7e4d45 59 in_8(rev) >> 4);
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60
61 /*
62 * Initialize local bus.
63 */
64 local_bus_init ();
65
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66 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
67 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
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68 return 0;
69}
70
9973e3c6 71phys_size_t
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72initdram(int board_type)
73{
74 long dram_size = 0;
75
76 puts("Initializing\n");
77
78#if defined(CONFIG_DDR_DLL)
79 {
80 /*
81 * Work around to stabilize DDR DLL MSYNC_IN.
82 * Errata DDR9 seems to have been fixed.
83 * This is now the workaround for Errata DDR11:
84 * Override DLL = 1, Course Adj = 1, Tap Select = 0
85 */
86
6d0f6bcf 87 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
11c45ebd 88
0c7e4d45 89 out_be32(&gur->ddrdllcr, 0x81000000);
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90 asm("sync;isync;msync");
91 udelay(200);
92 }
93#endif
94
95#if defined(CONFIG_SPD_EEPROM)
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96 dram_size = fsl_ddr_sdram();
97 dram_size = setup_ddr_tlbs(dram_size / 0x100000);
98 dram_size *= 0x100000;
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99#else
100 dram_size = fixed_sdram ();
101#endif
102
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103 /*
104 * SDRAM Initialization
105 */
106 sdram_init();
107
108 puts(" DDR: ");
109 return dram_size;
110}
111
112/*
113 * Initialize Local Bus
114 */
115void
116local_bus_init(void)
117{
6d0f6bcf 118 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 119 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
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120
121 uint clkdiv;
122 uint lbc_hz;
123 sys_info_t sysinfo;
124
125 get_sys_info(&sysinfo);
0c7e4d45 126 clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
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127 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
128
0c7e4d45 129 out_be32(&gur->lbiuiplldcr1, 0x00078080);
11c45ebd 130 if (clkdiv == 16) {
0c7e4d45 131 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
11c45ebd 132 } else if (clkdiv == 8) {
0c7e4d45 133 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
11c45ebd 134 } else if (clkdiv == 4) {
0c7e4d45 135 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
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136 }
137
0c7e4d45 138 setbits_be32(&lbc->lcrr, 0x00030000);
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139
140 asm("sync;isync;msync");
141
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142 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
143 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
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144}
145
146/*
147 * Initialize SDRAM memory on the Local Bus.
148 */
149void
150sdram_init(void)
151{
11d5a629 152#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
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153
154 uint idx;
f51cdaf1 155 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 156 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
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157 uint lsdmr_common;
158
159 puts(" SDRAM: ");
160
6d0f6bcf 161 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
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162
163 /*
164 * Setup SDRAM Base and Option Registers
165 */
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166 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
167 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
168 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
169 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
11d5a629 170
0c7e4d45 171 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
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172 asm("msync");
173
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174 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
175 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
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176 asm("msync");
177
178 /*
179 * MPC8548 uses "new" 15-16 style addressing.
180 */
6d0f6bcf 181 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
b0fe93ed 182 lsdmr_common |= LSDMR_BSMA1516;
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183
184 /*
185 * Issue PRECHARGE ALL command.
186 */
0c7e4d45 187 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL);
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188 asm("sync;msync");
189 *sdram_addr = 0xff;
190 ppcDcbf((unsigned long) sdram_addr);
191 udelay(100);
192
193 /*
194 * Issue 8 AUTO REFRESH commands.
195 */
196 for (idx = 0; idx < 8; idx++) {
0c7e4d45 197 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH);
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198 asm("sync;msync");
199 *sdram_addr = 0xff;
200 ppcDcbf((unsigned long) sdram_addr);
201 udelay(100);
202 }
203
204 /*
205 * Issue 8 MODE-set command.
206 */
0c7e4d45 207 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW);
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208 asm("sync;msync");
209 *sdram_addr = 0xff;
210 ppcDcbf((unsigned long) sdram_addr);
211 udelay(100);
212
213 /*
214 * Issue NORMAL OP command.
215 */
0c7e4d45 216 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL);
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217 asm("sync;msync");
218 *sdram_addr = 0xff;
219 ppcDcbf((unsigned long) sdram_addr);
220 udelay(200); /* Overkill. Must wait > 200 bus cycles */
221
222#endif /* enable SDRAM init */
223}
224
6d0f6bcf 225#if defined(CONFIG_SYS_DRAM_TEST)
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226int
227testdram(void)
228{
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229 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
230 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
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231 uint *p;
232
233 printf("Testing DRAM from 0x%08x to 0x%08x\n",
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234 CONFIG_SYS_MEMTEST_START,
235 CONFIG_SYS_MEMTEST_END);
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236
237 printf("DRAM test phase 1:\n");
238 for (p = pstart; p < pend; p++)
239 *p = 0xaaaaaaaa;
240
241 for (p = pstart; p < pend; p++) {
242 if (*p != 0xaaaaaaaa) {
243 printf ("DRAM test fails at: %08x\n", (uint) p);
244 return 1;
245 }
246 }
247
248 printf("DRAM test phase 2:\n");
249 for (p = pstart; p < pend; p++)
250 *p = 0x55555555;
251
252 for (p = pstart; p < pend; p++) {
253 if (*p != 0x55555555) {
254 printf ("DRAM test fails at: %08x\n", (uint) p);
255 return 1;
256 }
257 }
258
259 printf("DRAM test passed.\n");
260 return 0;
261}
262#endif
263
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264#if !defined(CONFIG_SPD_EEPROM)
265#define CONFIG_SYS_DDR_CONTROL 0xc300c000
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266/*************************************************************************
267 * fixed_sdram init -- doesn't use serial presence detect.
268 * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
269 ************************************************************************/
270long int fixed_sdram (void)
271{
6d0f6bcf 272 volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
11c45ebd 273
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PG
274 out_be32(&ddr->cs0_bnds, 0x0000007f);
275 out_be32(&ddr->cs1_bnds, 0x008000ff);
276 out_be32(&ddr->cs2_bnds, 0x00000000);
277 out_be32(&ddr->cs3_bnds, 0x00000000);
278 out_be32(&ddr->cs0_config, 0x80010101);
279 out_be32(&ddr->cs1_config, 0x80010101);
280 out_be32(&ddr->cs2_config, 0x00000000);
281 out_be32(&ddr->cs3_config, 0x00000000);
282 out_be32(&ddr->timing_cfg_3, 0x00000000);
283 out_be32(&ddr->timing_cfg_0, 0x00220802);
284 out_be32(&ddr->timing_cfg_1, 0x38377322);
285 out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
286 out_be32(&ddr->sdram_cfg, 0x4300C000);
287 out_be32(&ddr->sdram_cfg_2, 0x24401000);
288 out_be32(&ddr->sdram_mode, 0x23C00542);
289 out_be32(&ddr->sdram_mode_2, 0x00000000);
290 out_be32(&ddr->sdram_interval, 0x05080100);
291 out_be32(&ddr->sdram_md_cntl, 0x00000000);
292 out_be32(&ddr->sdram_data_init, 0x00000000);
293 out_be32(&ddr->sdram_clk_cntl, 0x03800000);
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294 asm("sync;isync;msync");
295 udelay(500);
296
297 #if defined (CONFIG_DDR_ECC)
298 /* Enable ECC checking */
0c7e4d45 299 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
11c45ebd 300 #else
0c7e4d45 301 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
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302 #endif
303
6d0f6bcf 304 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
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305}
306#endif
307
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308#ifdef CONFIG_PCI1
309static struct pci_controller pci1_hose;
310#endif /* CONFIG_PCI1 */
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311
312#ifdef CONFIG_PCIE1
313static struct pci_controller pcie1_hose;
314#endif /* CONFIG_PCIE1 */
315
11c45ebd 316
fdc7eb90 317#ifdef CONFIG_PCI
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318void
319pci_init_board(void)
320{
6d0f6bcf 321 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
fdc7eb90
PG
322 struct fsl_pci_info pci_info[2];
323 u32 devdisr, pordevsr, porpllsr, io_sel;
324 int first_free_busno = 0;
325 int num = 0;
11c45ebd 326
fdc7eb90
PG
327#ifdef CONFIG_PCIE1
328 int pcie_configured;
329#endif
11c45ebd 330
fdc7eb90
PG
331 devdisr = in_be32(&gur->devdisr);
332 pordevsr = in_be32(&gur->pordevsr);
333 porpllsr = in_be32(&gur->porpllsr);
334 io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
11c45ebd 335
fdc7eb90
PG
336 debug(" pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
337
338#ifdef CONFIG_PCI1
339 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
340 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
341 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
342 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
343 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
11c45ebd 344
8ca78f2c 345 printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
11c45ebd 346 (pci_32) ? 32 : 64,
2c40acd3
PG
347 (pci_speed == 33000000) ? "33" :
348 (pci_speed == 66000000) ? "66" : "unknown",
11c45ebd 349 pci_clk_sel ? "sync" : "async",
fdc7eb90
PG
350 pci_arb ? "arbiter" : "external-arbiter");
351
352 SET_STD_PCI_INFO(pci_info[num], 1);
353 first_free_busno = fsl_pci_init_port(&pci_info[num++],
01471d53 354 &pci1_hose, first_free_busno);
11c45ebd 355 } else {
8ca78f2c 356 printf("PCI: disabled\n");
11c45ebd 357 }
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358
359 puts("\n");
11c45ebd 360#else
fdc7eb90 361 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
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362#endif
363
fdc7eb90 364 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
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365
366#ifdef CONFIG_PCIE1
fdc7eb90 367 pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
11c45ebd 368
fdc7eb90
PG
369 if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
370 SET_STD_PCIE_INFO(pci_info[num], 1);
8ca78f2c 371 printf("PCIE: base address %lx\n", pci_info[num].regs);
fdc7eb90 372 first_free_busno = fsl_pci_init_port(&pci_info[num++],
01471d53 373 &pcie1_hose, first_free_busno);
11c45ebd 374 } else {
8ca78f2c 375 printf("PCIE: disabled\n");
11c45ebd 376 }
fdc7eb90
PG
377
378 puts("\n");
11c45ebd 379#else
fdc7eb90 380 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCIE); /* disable */
11c45ebd 381#endif
11c45ebd 382}
fdc7eb90 383#endif
11c45ebd 384
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385int board_eth_init(bd_t *bis)
386{
387 tsec_standard_init(bis);
388 pci_eth_init(bis);
389 return 0; /* otherwise cpu_eth_init gets run */
390}
391
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392int last_stage_init(void)
393{
394 return 0;
395}
396
397#if defined(CONFIG_OF_BOARD_SETUP)
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398void ft_board_setup(void *blob, bd_t *bd)
399{
400 ft_cpu_setup(blob, bd);
6525d51f
KG
401
402#ifdef CONFIG_FSL_PCI_INIT
403 FT_FSL_PCI_SETUP;
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404#endif
405}
406#endif