2 * Copyright 2007,2009 Wind River Systems, Inc. <www.windriver.com>
4 * Copyright 2007 Embedded Specialties, Inc.
6 * Copyright 2004, 2007 Freescale Semiconductor.
8 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
10 * See file CREDITS for list of people who contributed to this
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.
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.
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,
31 #include <asm/processor.h>
32 #include <asm/immap_85xx.h>
33 #include <asm/fsl_pci.h>
34 #include <asm/fsl_ddr_sdram.h>
35 #include <spd_sdram.h>
40 #include <fdt_support.h>
42 DECLARE_GLOBAL_DATA_PTR;
44 void local_bus_init(void);
45 void sdram_init(void);
46 long int fixed_sdram (void);
48 int board_early_init_f (void)
55 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
56 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
58 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
62 * Initialize local bus.
66 out_be32(&ecm->eedr, 0xffffffff); /* clear ecm errors */
67 out_be32(&ecm->eeer, 0xffffffff); /* enable ecm errors */
72 initdram(int board_type)
76 puts("Initializing\n");
78 #if defined(CONFIG_DDR_DLL)
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
87 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
89 out_be32(&gur->ddrdllcr, 0x81000000);
90 asm("sync;isync;msync");
95 #if defined(CONFIG_SPD_EEPROM)
96 dram_size = fsl_ddr_sdram();
97 dram_size = setup_ddr_tlbs(dram_size / 0x100000);
98 dram_size *= 0x100000;
100 dram_size = fixed_sdram ();
104 * SDRAM Initialization
113 * Initialize Local Bus
118 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
119 volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
125 get_sys_info(&sysinfo);
126 clkdiv = (in_be32(&lbc->lcrr) & LCRR_CLKDIV) * 2;
127 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
129 out_be32(&gur->lbiuiplldcr1, 0x00078080);
131 out_be32(&gur->lbiuiplldcr0, 0x7c0f1bf0);
132 } else if (clkdiv == 8) {
133 out_be32(&gur->lbiuiplldcr0, 0x6c0f1bf0);
134 } else if (clkdiv == 4) {
135 out_be32(&gur->lbiuiplldcr0, 0x5c0f1bf0);
138 setbits_be32(&lbc->lcrr, 0x00030000);
140 asm("sync;isync;msync");
142 out_be32(&lbc->ltesr, 0xffffffff); /* Clear LBC error IRQs */
143 out_be32(&lbc->lteir, 0xffffffff); /* Enable LBC error IRQs */
147 * Initialize SDRAM memory on the Local Bus.
152 #if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM)
155 volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
156 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
161 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
164 * Setup SDRAM Base and Option Registers
166 out_be32(&lbc->or3, CONFIG_SYS_OR3_PRELIM);
169 out_be32(&lbc->br3, CONFIG_SYS_BR3_PRELIM);
172 out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
176 out_be32(&lbc->lsrt, CONFIG_SYS_LBC_LSRT);
177 out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
181 * MPC8548 uses "new" 15-16 style addressing.
183 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
184 lsdmr_common |= LSDMR_BSMA1516;
187 * Issue PRECHARGE ALL command.
189 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_PCHALL);
192 ppcDcbf((unsigned long) sdram_addr);
196 * Issue 8 AUTO REFRESH commands.
198 for (idx = 0; idx < 8; idx++) {
199 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_ARFRSH);
202 ppcDcbf((unsigned long) sdram_addr);
207 * Issue 8 MODE-set command.
209 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_MRW);
212 ppcDcbf((unsigned long) sdram_addr);
216 * Issue NORMAL OP command.
218 out_be32(&lbc->lsdmr, lsdmr_common | LSDMR_OP_NORMAL);
221 ppcDcbf((unsigned long) sdram_addr);
222 udelay(200); /* Overkill. Must wait > 200 bus cycles */
224 #endif /* enable SDRAM init */
227 #if defined(CONFIG_SYS_DRAM_TEST)
231 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
232 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
235 printf("Testing DRAM from 0x%08x to 0x%08x\n",
236 CONFIG_SYS_MEMTEST_START,
237 CONFIG_SYS_MEMTEST_END);
239 printf("DRAM test phase 1:\n");
240 for (p = pstart; p < pend; p++)
243 for (p = pstart; p < pend; p++) {
244 if (*p != 0xaaaaaaaa) {
245 printf ("DRAM test fails at: %08x\n", (uint) p);
250 printf("DRAM test phase 2:\n");
251 for (p = pstart; p < pend; p++)
254 for (p = pstart; p < pend; p++) {
255 if (*p != 0x55555555) {
256 printf ("DRAM test fails at: %08x\n", (uint) p);
261 printf("DRAM test passed.\n");
266 #if !defined(CONFIG_SPD_EEPROM)
267 #define CONFIG_SYS_DDR_CONTROL 0xc300c000
268 /*************************************************************************
269 * fixed_sdram init -- doesn't use serial presence detect.
270 * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
271 ************************************************************************/
272 long int fixed_sdram (void)
274 volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
276 out_be32(&ddr->cs0_bnds, 0x0000007f);
277 out_be32(&ddr->cs1_bnds, 0x008000ff);
278 out_be32(&ddr->cs2_bnds, 0x00000000);
279 out_be32(&ddr->cs3_bnds, 0x00000000);
280 out_be32(&ddr->cs0_config, 0x80010101);
281 out_be32(&ddr->cs1_config, 0x80010101);
282 out_be32(&ddr->cs2_config, 0x00000000);
283 out_be32(&ddr->cs3_config, 0x00000000);
284 out_be32(&ddr->timing_cfg_3, 0x00000000);
285 out_be32(&ddr->timing_cfg_0, 0x00220802);
286 out_be32(&ddr->timing_cfg_1, 0x38377322);
287 out_be32(&ddr->timing_cfg_2, 0x0fa044C7);
288 out_be32(&ddr->sdram_cfg, 0x4300C000);
289 out_be32(&ddr->sdram_cfg_2, 0x24401000);
290 out_be32(&ddr->sdram_mode, 0x23C00542);
291 out_be32(&ddr->sdram_mode_2, 0x00000000);
292 out_be32(&ddr->sdram_interval, 0x05080100);
293 out_be32(&ddr->sdram_md_cntl, 0x00000000);
294 out_be32(&ddr->sdram_data_init, 0x00000000);
295 out_be32(&ddr->sdram_clk_cntl, 0x03800000);
296 asm("sync;isync;msync");
299 #if defined (CONFIG_DDR_ECC)
300 /* Enable ECC checking */
301 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | 0x20000000);
303 out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
306 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
311 static struct pci_controller pci1_hose;
312 #endif /* CONFIG_PCI1 */
315 static struct pci_controller pcie1_hose;
316 #endif /* CONFIG_PCIE1 */
318 int first_free_busno=0;
323 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
327 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
328 struct pci_controller *hose = &pci1_hose;
329 struct pci_region *r = hose->regions;
331 uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
332 uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
333 uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
335 uint pci_speed = CONFIG_SYS_CLK_FREQ; /* get_clock_freq() */
337 if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
338 printf (" PCI host: %d bit, %s MHz, %s, %s\n",
340 (pci_speed == 33000000) ? "33" :
341 (pci_speed == 66000000) ? "66" : "unknown",
342 pci_clk_sel ? "sync" : "async",
343 pci_arb ? "arbiter" : "external-arbiter"
346 /* outbound memory */
348 CONFIG_SYS_PCI1_MEM_BASE,
349 CONFIG_SYS_PCI1_MEM_PHYS,
350 CONFIG_SYS_PCI1_MEM_SIZE,
355 CONFIG_SYS_PCI1_IO_BASE,
356 CONFIG_SYS_PCI1_IO_PHYS,
357 CONFIG_SYS_PCI1_IO_SIZE,
359 hose->region_count = r - hose->regions;
361 hose->first_busno=first_free_busno;
363 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
364 first_free_busno=hose->last_busno+1;
365 printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
366 #ifdef CONFIG_PCIX_CHECK
367 if (!(gur->pordevsr & MPC85xx_PORDEVSR_PCI1)) {
369 if (CONFIG_SYS_CLK_FREQ < 66000000)
370 printf("PCI-X will only work at 66 MHz\n");
372 reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
373 | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
374 pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
378 printf (" PCI: disabled\n");
382 gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
385 gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable PCI2 */
389 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
390 struct pci_controller *hose = &pcie1_hose;
391 struct pci_region *r = hose->regions;
393 int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
395 if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
396 printf ("\n PCIE at base address %x",
399 if (pci->pme_msg_det) {
400 pci->pme_msg_det = 0xffffffff;
401 debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
405 /* outbound memory */
407 CONFIG_SYS_PCIE1_MEM_BASE,
408 CONFIG_SYS_PCIE1_MEM_PHYS,
409 CONFIG_SYS_PCIE1_MEM_SIZE,
414 CONFIG_SYS_PCIE1_IO_BASE,
415 CONFIG_SYS_PCIE1_IO_PHYS,
416 CONFIG_SYS_PCIE1_IO_SIZE,
419 hose->region_count = r - hose->regions;
421 hose->first_busno=first_free_busno;
423 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
424 printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);
426 first_free_busno=hose->last_busno+1;
429 printf (" PCIE: disabled\n");
433 gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
438 int board_eth_init(bd_t *bis)
440 tsec_standard_init(bis);
442 return 0; /* otherwise cpu_eth_init gets run */
445 int last_stage_init(void)
450 #if defined(CONFIG_OF_BOARD_SETUP)
451 void ft_board_setup(void *blob, bd_t *bd)
453 ft_cpu_setup(blob, bd);
455 ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
458 ft_fsl_pci_setup(blob, "pci1", &pcie1_hose);