]> git.ipfire.org Git - people/ms/u-boot.git/blame - board/sbc8548/sbc8548.c
sbc8548: Fix LBC SDRAM initialization settings
[people/ms/u-boot.git] / board / sbc8548 / sbc8548.c
CommitLineData
11c45ebd 1/*
bd42bbb8
PG
2 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
3 *
11c45ebd
JH
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>
5d27e02c 35#include <asm/fsl_serdes.h>
a30a549a 36#include <spd_sdram.h>
94ca0914
PG
37#include <netdev.h>
38#include <tsec.h>
11c45ebd
JH
39#include <miiphy.h>
40#include <libfdt.h>
41#include <fdt_support.h>
42
11c45ebd
JH
43DECLARE_GLOBAL_DATA_PTR;
44
11c45ebd 45void local_bus_init(void);
11c45ebd
JH
46
47int board_early_init_f (void)
48{
49 return 0;
50}
51
52int checkboard (void)
53{
6d0f6bcf
JCPV
54 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
55 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
11c45ebd
JH
56
57 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
0c7e4d45 58 in_8(rev) >> 4);
11c45ebd
JH
59
60 /*
61 * Initialize local bus.
62 */
63 local_bus_init ();
64
0c7e4d45
PG
65 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
66 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
11c45ebd
JH
67 return 0;
68}
69
11c45ebd
JH
70/*
71 * Initialize Local Bus
72 */
73void
74local_bus_init(void)
75{
6d0f6bcf 76 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
f51cdaf1 77 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
11c45ebd
JH
78
79 uint clkdiv;
11c45ebd
JH
80 sys_info_t sysinfo;
81
82 get_sys_info(&sysinfo);
0c7e4d45 83 clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
11c45ebd 84
0c7e4d45 85 out_be32(&gur->lbiuiplldcr1, 0x00078080);
11c45ebd 86 if (clkdiv == 16) {
0c7e4d45 87 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
11c45ebd 88 } else if (clkdiv == 8) {
0c7e4d45 89 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
11c45ebd 90 } else if (clkdiv == 4) {
0c7e4d45 91 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
11c45ebd
JH
92 }
93
0c7e4d45 94 setbits_be32(&lbc->lcrr, 0x00030000);
11c45ebd
JH
95
96 asm("sync;isync;msync");
97
0c7e4d45
PG
98 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
99 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
11c45ebd
JH
100}
101
102/*
103 * Initialize SDRAM memory on the Local Bus.
104 */
70961ba4 105void lbc_sdram_init(void)
11c45ebd 106{
11d5a629 107#if defined(CONFIG_SYS_LBC_SDRAM_SIZE)
11c45ebd
JH
108
109 uint idx;
5f4c6f0d 110 const unsigned long size = CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024;
f51cdaf1 111 volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
6d0f6bcf 112 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
5f4c6f0d 113 uint *sdram_addr2 = (uint *)(CONFIG_SYS_LBC_SDRAM_BASE + size/2);
11c45ebd
JH
114
115 puts(" SDRAM: ");
116
5f4c6f0d 117 print_size(size, "\n");
11c45ebd
JH
118
119 /*
120 * Setup SDRAM Base and Option Registers
121 */
f51cdaf1
BB
122 set_lbc_or(3, CONFIG_SYS_OR3_PRELIM);
123 set_lbc_br(3, CONFIG_SYS_BR3_PRELIM);
124 set_lbc_or(4, CONFIG_SYS_OR4_PRELIM);
125 set_lbc_br(4, CONFIG_SYS_BR4_PRELIM);
11d5a629 126
0c7e4d45 127 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
11c45ebd
JH
128 asm("msync");
129
0c7e4d45
PG
130 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
131 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
11c45ebd
JH
132 asm("msync");
133
11c45ebd
JH
134 /*
135 * Issue PRECHARGE ALL command.
136 */
5f4c6f0d 137 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_PCHALL);
11c45ebd
JH
138 asm("sync;msync");
139 *sdram_addr = 0xff;
140 ppcDcbf((unsigned long) sdram_addr);
5f4c6f0d
PG
141 *sdram_addr2 = 0xff;
142 ppcDcbf((unsigned long) sdram_addr2);
11c45ebd
JH
143 udelay(100);
144
145 /*
146 * Issue 8 AUTO REFRESH commands.
147 */
148 for (idx = 0; idx < 8; idx++) {
5f4c6f0d 149 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_ARFRSH);
11c45ebd
JH
150 asm("sync;msync");
151 *sdram_addr = 0xff;
152 ppcDcbf((unsigned long) sdram_addr);
5f4c6f0d
PG
153 *sdram_addr2 = 0xff;
154 ppcDcbf((unsigned long) sdram_addr2);
11c45ebd
JH
155 udelay(100);
156 }
157
158 /*
159 * Issue 8 MODE-set command.
160 */
5f4c6f0d 161 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_MRW);
11c45ebd
JH
162 asm("sync;msync");
163 *sdram_addr = 0xff;
164 ppcDcbf((unsigned long) sdram_addr);
5f4c6f0d
PG
165 *sdram_addr2 = 0xff;
166 ppcDcbf((unsigned long) sdram_addr2);
11c45ebd
JH
167 udelay(100);
168
169 /*
5f4c6f0d 170 * Issue RFEN command.
11c45ebd 171 */
5f4c6f0d 172 out_be32(&lbc->lsdmr, CONFIG_SYS_LBC_LSDMR_RFEN);
11c45ebd
JH
173 asm("sync;msync");
174 *sdram_addr = 0xff;
175 ppcDcbf((unsigned long) sdram_addr);
5f4c6f0d
PG
176 *sdram_addr2 = 0xff;
177 ppcDcbf((unsigned long) sdram_addr2);
11c45ebd
JH
178 udelay(200); /* Overkill. Must wait > 200 bus cycles */
179
180#endif /* enable SDRAM init */
181}
182
6d0f6bcf 183#if defined(CONFIG_SYS_DRAM_TEST)
11c45ebd
JH
184int
185testdram(void)
186{
6d0f6bcf
JCPV
187 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
188 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
11c45ebd
JH
189 uint *p;
190
191 printf("Testing DRAM from 0x%08x to 0x%08x\n",
6d0f6bcf
JCPV
192 CONFIG_SYS_MEMTEST_START,
193 CONFIG_SYS_MEMTEST_END);
11c45ebd
JH
194
195 printf("DRAM test phase 1:\n");
196 for (p = pstart; p < pend; p++)
197 *p = 0xaaaaaaaa;
198
199 for (p = pstart; p < pend; p++) {
200 if (*p != 0xaaaaaaaa) {
201 printf ("DRAM test fails at: %08x\n", (uint) p);
202 return 1;
203 }
204 }
205
206 printf("DRAM test phase 2:\n");
207 for (p = pstart; p < pend; p++)
208 *p = 0x55555555;
209
210 for (p = pstart; p < pend; p++) {
211 if (*p != 0x55555555) {
212 printf ("DRAM test fails at: %08x\n", (uint) p);
213 return 1;
214 }
215 }
216
217 printf("DRAM test passed.\n");
218 return 0;
219}
220#endif
221
0c7e4d45
PG
222#if !defined(CONFIG_SPD_EEPROM)
223#define CONFIG_SYS_DDR_CONTROL 0xc300c000
11c45ebd
JH
224/*************************************************************************
225 * fixed_sdram init -- doesn't use serial presence detect.
226 * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
227 ************************************************************************/
38dba0c2 228phys_size_t fixed_sdram(void)
11c45ebd 229{
6d0f6bcf 230 volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
11c45ebd 231
0c7e4d45
PG
232 out_be32(&ddr->cs0_bnds, 0x0000007f);
233 out_be32(&ddr->cs1_bnds, 0x008000ff);
234 out_be32(&ddr->cs2_bnds, 0x00000000);
235 out_be32(&ddr->cs3_bnds, 0x00000000);
236 out_be32(&ddr->cs0_config, 0x80010101);
237 out_be32(&ddr->cs1_config, 0x80010101);
238 out_be32(&ddr->cs2_config, 0x00000000);
239 out_be32(&ddr->cs3_config, 0x00000000);
240 out_be32(&ddr->timing_cfg_3, 0x00000000);
241 out_be32(&ddr->timing_cfg_0, 0x00220802);
242 out_be32(&ddr->timing_cfg_1, 0x38377322);
243 out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
244 out_be32(&ddr->sdram_cfg, 0x4300C000);
245 out_be32(&ddr->sdram_cfg_2, 0x24401000);
246 out_be32(&ddr->sdram_mode, 0x23C00542);
247 out_be32(&ddr->sdram_mode_2, 0x00000000);
248 out_be32(&ddr->sdram_interval, 0x05080100);
249 out_be32(&ddr->sdram_md_cntl, 0x00000000);
250 out_be32(&ddr->sdram_data_init, 0x00000000);
251 out_be32(&ddr->sdram_clk_cntl, 0x03800000);
11c45ebd
JH
252 asm("sync;isync;msync");
253 udelay(500);
254
255 #if defined (CONFIG_DDR_ECC)
256 /* Enable ECC checking */
0c7e4d45 257 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
11c45ebd 258 #else
0c7e4d45 259 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
11c45ebd
JH
260 #endif
261
6d0f6bcf 262 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
11c45ebd
JH
263}
264#endif
265
7b1f1399
PG
266#ifdef CONFIG_PCI1
267static struct pci_controller pci1_hose;
268#endif /* CONFIG_PCI1 */
11c45ebd 269
fdc7eb90 270#ifdef CONFIG_PCI
11c45ebd
JH
271void
272pci_init_board(void)
273{
6d0f6bcf 274 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
fdc7eb90 275 int first_free_busno = 0;
fdc7eb90
PG
276
277#ifdef CONFIG_PCI1
2d0a054d
KG
278 struct fsl_pci_info pci_info;
279 u32 devdisr = in_be32(&gur->devdisr);
280 u32 pordevsr = in_be32(&gur->pordevsr);
281 u32 porpllsr = in_be32(&gur->porpllsr);
282
fdc7eb90
PG
283 if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
284 uint pci_32 = pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
285 uint pci_arb = pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
286 uint pci_clk_sel = porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;
287 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
11c45ebd 288
8ca78f2c 289 printf("PCI: Host, %d bit, %s MHz, %s, %s\n",
11c45ebd 290 (pci_32) ? 32 : 64,
2c40acd3
PG
291 (pci_speed == 33000000) ? "33" :
292 (pci_speed == 66000000) ? "66" : "unknown",
11c45ebd 293 pci_clk_sel ? "sync" : "async",
fdc7eb90
PG
294 pci_arb ? "arbiter" : "external-arbiter");
295
2d0a054d
KG
296 SET_STD_PCI_INFO(pci_info, 1);
297 set_next_law(pci_info.mem_phys,
298 law_size_bits(pci_info.mem_size), pci_info.law);
299 set_next_law(pci_info.io_phys,
300 law_size_bits(pci_info.io_size), pci_info.law);
301
302 first_free_busno = fsl_pci_init_port(&pci_info,
01471d53 303 &pci1_hose, first_free_busno);
11c45ebd 304 } else {
8ca78f2c 305 printf("PCI: disabled\n");
11c45ebd 306 }
fdc7eb90
PG
307
308 puts("\n");
11c45ebd 309#else
fdc7eb90 310 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1); /* disable */
11c45ebd
JH
311#endif
312
fdc7eb90 313 setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
11c45ebd 314
2d0a054d 315 fsl_pcie_init_board(first_free_busno);
11c45ebd 316}
fdc7eb90 317#endif
11c45ebd 318
94ca0914
PG
319int board_eth_init(bd_t *bis)
320{
321 tsec_standard_init(bis);
322 pci_eth_init(bis);
323 return 0; /* otherwise cpu_eth_init gets run */
324}
325
11c45ebd
JH
326int last_stage_init(void)
327{
328 return 0;
329}
330
331#if defined(CONFIG_OF_BOARD_SETUP)
2dba0dea
KG
332void ft_board_setup(void *blob, bd_t *bd)
333{
334 ft_cpu_setup(blob, bd);
6525d51f
KG
335
336#ifdef CONFIG_FSL_PCI_INIT
337 FT_FSL_PCI_SETUP;
11c45ebd
JH
338#endif
339}
340#endif