2 * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
3 * Copyright 2007 Embedded Specialties, Inc.
5 * Copyright 2004, 2007 Freescale Semiconductor.
7 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
9 * See file CREDITS for list of people who contributed to this
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <asm/processor.h>
31 #include <asm/immap_85xx.h>
32 #include <asm/immap_fsl_pci.h>
33 #include <asm/fsl_ddr_sdram.h>
34 #include <spd_sdram.h>
37 #include <fdt_support.h>
39 DECLARE_GLOBAL_DATA_PTR;
41 void local_bus_init(void);
42 void sdram_init(void);
43 long int fixed_sdram (void);
45 int board_early_init_f (void)
52 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
53 volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
54 volatile u_char *rev= (void *)CONFIG_SYS_BD_REV;
56 printf ("Board: Wind River SBC8548 Rev. 0x%01x\n",
60 * Initialize local bus.
65 * Hack TSEC 3 and 4 IO voltages.
67 gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */
69 ecm->eedr = 0xffffffff; /* clear ecm errors */
70 ecm->eeer = 0xffffffff; /* enable ecm errors */
75 initdram(int board_type)
79 puts("Initializing\n");
81 #if defined(CONFIG_DDR_DLL)
84 * Work around to stabilize DDR DLL MSYNC_IN.
85 * Errata DDR9 seems to have been fixed.
86 * This is now the workaround for Errata DDR11:
87 * Override DLL = 1, Course Adj = 1, Tap Select = 0
90 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
92 gur->ddrdllcr = 0x81000000;
93 asm("sync;isync;msync");
98 #if defined(CONFIG_SPD_EEPROM)
99 dram_size = fsl_ddr_sdram();
100 dram_size = setup_ddr_tlbs(dram_size / 0x100000);
101 dram_size *= 0x100000;
103 dram_size = fixed_sdram ();
107 * SDRAM Initialization
116 * Initialize Local Bus
121 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
122 volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
128 get_sys_info(&sysinfo);
129 clkdiv = (lbc->lcrr & LCRR_CLKDIV) * 2;
130 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
132 gur->lbiuiplldcr1 = 0x00078080;
134 gur->lbiuiplldcr0 = 0x7c0f1bf0;
135 } else if (clkdiv == 8) {
136 gur->lbiuiplldcr0 = 0x6c0f1bf0;
137 } else if (clkdiv == 4) {
138 gur->lbiuiplldcr0 = 0x5c0f1bf0;
141 lbc->lcrr |= 0x00030000;
143 asm("sync;isync;msync");
145 lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */
146 lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */
150 * Initialize SDRAM memory on the Local Bus.
155 #if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM)
158 volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
159 uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE;
164 print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
167 * Setup SDRAM Base and Option Registers
169 lbc->or3 = CONFIG_SYS_OR3_PRELIM;
172 lbc->br3 = CONFIG_SYS_BR3_PRELIM;
175 lbc->lbcr = CONFIG_SYS_LBC_LBCR;
179 lbc->lsrt = CONFIG_SYS_LBC_LSRT;
180 lbc->mrtpr = CONFIG_SYS_LBC_MRTPR;
184 * MPC8548 uses "new" 15-16 style addressing.
186 lsdmr_common = CONFIG_SYS_LBC_LSDMR_COMMON;
187 lsdmr_common |= LSDMR_BSMA1516;
190 * Issue PRECHARGE ALL command.
192 lbc->lsdmr = lsdmr_common | LSDMR_OP_PCHALL;
195 ppcDcbf((unsigned long) sdram_addr);
199 * Issue 8 AUTO REFRESH commands.
201 for (idx = 0; idx < 8; idx++) {
202 lbc->lsdmr = lsdmr_common | LSDMR_OP_ARFRSH;
205 ppcDcbf((unsigned long) sdram_addr);
210 * Issue 8 MODE-set command.
212 lbc->lsdmr = lsdmr_common | LSDMR_OP_MRW;
215 ppcDcbf((unsigned long) sdram_addr);
219 * Issue NORMAL OP command.
221 lbc->lsdmr = lsdmr_common | LSDMR_OP_NORMAL;
224 ppcDcbf((unsigned long) sdram_addr);
225 udelay(200); /* Overkill. Must wait > 200 bus cycles */
227 #endif /* enable SDRAM init */
230 #if defined(CONFIG_SYS_DRAM_TEST)
234 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
235 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
238 printf("Testing DRAM from 0x%08x to 0x%08x\n",
239 CONFIG_SYS_MEMTEST_START,
240 CONFIG_SYS_MEMTEST_END);
242 printf("DRAM test phase 1:\n");
243 for (p = pstart; p < pend; p++)
246 for (p = pstart; p < pend; p++) {
247 if (*p != 0xaaaaaaaa) {
248 printf ("DRAM test fails at: %08x\n", (uint) p);
253 printf("DRAM test phase 2:\n");
254 for (p = pstart; p < pend; p++)
257 for (p = pstart; p < pend; p++) {
258 if (*p != 0x55555555) {
259 printf ("DRAM test fails at: %08x\n", (uint) p);
264 printf("DRAM test passed.\n");
269 #if !defined(CONFIG_SPD_EEPROM)
270 /*************************************************************************
271 * fixed_sdram init -- doesn't use serial presence detect.
272 * assumes 256MB DDR2 SDRAM SODIMM, without ECC, running at DDR400 speed.
273 ************************************************************************/
274 long int fixed_sdram (void)
276 #define CONFIG_SYS_DDR_CONTROL 0xc300c000
278 volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR);
280 ddr->cs0_bnds = 0x0000007f;
281 ddr->cs1_bnds = 0x008000ff;
282 ddr->cs2_bnds = 0x00000000;
283 ddr->cs3_bnds = 0x00000000;
284 ddr->cs0_config = 0x80010101;
285 ddr->cs1_config = 0x80010101;
286 ddr->cs2_config = 0x00000000;
287 ddr->cs3_config = 0x00000000;
288 ddr->timing_cfg_3 = 0x00000000;
289 ddr->timing_cfg_0 = 0x00220802;
290 ddr->timing_cfg_1 = 0x38377322;
291 ddr->timing_cfg_2 = 0x0fa044C7;
292 ddr->sdram_cfg = 0x4300C000;
293 ddr->sdram_cfg_2 = 0x24401000;
294 ddr->sdram_mode = 0x23C00542;
295 ddr->sdram_mode_2 = 0x00000000;
296 ddr->sdram_interval = 0x05080100;
297 ddr->sdram_md_cntl = 0x00000000;
298 ddr->sdram_data_init = 0x00000000;
299 ddr->sdram_clk_cntl = 0x03800000;
300 asm("sync;isync;msync");
303 #if defined (CONFIG_DDR_ECC)
304 /* Enable ECC checking */
305 ddr->sdram_cfg = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
307 ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
310 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
314 #if defined(CONFIG_PCI) || defined(CONFIG_PCI1)
315 /* For some reason the Tundra PCI bridge shows up on itself as a
316 * different device. Work around that by refusing to configure it.
318 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
320 static struct pci_config_table pci_sbc8548_config_table[] = {
321 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
322 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
323 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
324 mpc85xx_config_via_usbide, {0,0,0}},
325 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
326 mpc85xx_config_via_usb, {0,0,0}},
327 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
328 mpc85xx_config_via_usb2, {0,0,0}},
329 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
330 mpc85xx_config_via_power, {0,0,0}},
331 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
332 mpc85xx_config_via_ac97, {0,0,0}},
336 static struct pci_controller pci1_hose = {
337 config_table: pci_sbc8548_config_table};
338 #endif /* CONFIG_PCI */
341 static struct pci_controller pci2_hose;
342 #endif /* CONFIG_PCI2 */
345 static struct pci_controller pcie1_hose;
346 #endif /* CONFIG_PCIE1 */
348 int first_free_busno=0;
350 extern int fsl_pci_setup_inbound_windows(struct pci_region *r);
351 extern void fsl_pci_init(struct pci_controller *hose);
356 volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
360 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
361 struct pci_controller *hose = &pci1_hose;
362 struct pci_config_table *table;
363 struct pci_region *r = hose->regions;
365 uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
366 uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
367 uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
369 uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
371 uint pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
373 if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
374 printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
376 (pci_speed == 33333000) ? "33" :
377 (pci_speed == 66666000) ? "66" : "unknown",
378 pci_clk_sel ? "sync" : "async",
379 pci_agent ? "agent" : "host",
380 pci_arb ? "arbiter" : "external-arbiter"
385 r += fsl_pci_setup_inbound_windows(r);
387 /* outbound memory */
389 CONFIG_SYS_PCI1_MEM_BASE,
390 CONFIG_SYS_PCI1_MEM_PHYS,
391 CONFIG_SYS_PCI1_MEM_SIZE,
396 CONFIG_SYS_PCI1_IO_BASE,
397 CONFIG_SYS_PCI1_IO_PHYS,
398 CONFIG_SYS_PCI1_IO_SIZE,
400 hose->region_count = r - hose->regions;
402 /* relocate config table pointers */
403 hose->config_table = \
404 (struct pci_config_table *)((uint)hose->config_table + gd->reloc_off);
405 for (table = hose->config_table; table && table->vendor; table++)
406 table->config_device += gd->reloc_off;
408 hose->first_busno=first_free_busno;
409 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
412 first_free_busno=hose->last_busno+1;
413 printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
414 #ifdef CONFIG_PCIX_CHECK
415 if (!(gur->pordevsr & MPC85xx_PORDEVSR_PCI1)) {
417 if (CONFIG_SYS_CLK_FREQ < 66000000)
418 printf("PCI-X will only work at 66 MHz\n");
420 reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
421 | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
422 pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
426 printf (" PCI: disabled\n");
430 gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
435 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
436 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
438 printf (" PCI2: 32 bit, 66 MHz, %s\n",
439 pci2_clk_sel ? "sync" : "async");
441 printf (" PCI2: disabled\n");
445 gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable */
446 #endif /* CONFIG_PCI2 */
450 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
451 struct pci_controller *hose = &pcie1_hose;
452 int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
453 struct pci_region *r = hose->regions;
455 int pcie_configured = io_sel >= 1;
457 if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
458 printf ("\n PCIE connected to slot as %s (base address %x)",
459 pcie_ep ? "End Point" : "Root Complex",
462 if (pci->pme_msg_det) {
463 pci->pme_msg_det = 0xffffffff;
464 debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
470 CONFIG_SYS_PCI_MEMORY_BUS,
471 CONFIG_SYS_PCI_MEMORY_PHYS,
472 CONFIG_SYS_PCI_MEMORY_SIZE,
473 PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
475 /* outbound memory */
477 CONFIG_SYS_PCIE1_MEM_BASE,
478 CONFIG_SYS_PCIE1_MEM_PHYS,
479 CONFIG_SYS_PCIE1_MEM_SIZE,
484 CONFIG_SYS_PCIE1_IO_BASE,
485 CONFIG_SYS_PCIE1_IO_PHYS,
486 CONFIG_SYS_PCIE1_IO_SIZE,
489 hose->region_count = r - hose->regions;
491 hose->first_busno=first_free_busno;
492 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
495 printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);
497 first_free_busno=hose->last_busno+1;
500 printf (" PCIE: disabled\n");
504 gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
509 int last_stage_init(void)
514 #if defined(CONFIG_OF_BOARD_SETUP)
515 extern void ft_fsl_pci_setup(void *blob, const char *pci_alias,
516 struct pci_controller *hose);
518 void ft_board_setup(void *blob, bd_t *bd)
520 ft_cpu_setup(blob, bd);
522 ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
525 ft_fsl_pci_setup(blob, "pci1", &pcie1_hose);