2 * Copyright 2004, 2007 Freescale Semiconductor.
4 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
6 * See file CREDITS for list of people who contributed to this
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.
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.
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,
27 #include <asm/processor.h>
28 #include <asm/immap_85xx.h>
29 #include <asm/immap_fsl_pci.h>
30 #include <spd_sdram.h>
33 #include <fdt_support.h>
35 #include "../common/cadmus.h"
36 #include "../common/eeprom.h"
37 #include "../common/via.h"
39 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
40 extern void ddr_enable_ecc(unsigned int dram_size);
43 DECLARE_GLOBAL_DATA_PTR;
45 void local_bus_init(void);
46 void sdram_init(void);
48 int board_early_init_f (void)
55 volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
56 volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
58 /* PCI slot in USER bits CSR[6:7] by convention. */
59 uint pci_slot = get_pci_slot ();
61 uint cpu_board_rev = get_cpu_board_revision ();
64 printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
65 get_board_version (), pci_slot);
67 printf ("CPU Board Revision %d.%d (0x%04x)\n",
68 MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
69 MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
71 * Initialize local bus.
78 * Fix CPU2 errata: A core hang possible while executing a
79 * msync instruction and a snoopable transaction from an I/O
80 * master tagged to make quick forward progress is present.
81 * Fixed in Silicon Rev.2.1
83 if (!(SVR_MAJ(svr) >= 2 && SVR_MIN(svr) >= 1))
84 ecm->eebpcr |= (1 << 16);
87 * Hack TSEC 3 and 4 IO voltages.
89 gur->tsec34ioovcr = 0xe7e0; /* 1110 0111 1110 0xxx */
91 ecm->eedr = 0xffffffff; /* clear ecm errors */
92 ecm->eeer = 0xffffffff; /* enable ecm errors */
97 initdram(int board_type)
101 puts("Initializing\n");
103 #if defined(CONFIG_DDR_DLL)
106 * Work around to stabilize DDR DLL MSYNC_IN.
107 * Errata DDR9 seems to have been fixed.
108 * This is now the workaround for Errata DDR11:
109 * Override DLL = 1, Course Adj = 1, Tap Select = 0
112 volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
114 gur->ddrdllcr = 0x81000000;
115 asm("sync;isync;msync");
119 dram_size = spd_sdram();
121 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
123 * Initialize and enable DDR ECC.
125 ddr_enable_ecc(dram_size);
128 * SDRAM Initialization
137 * Initialize Local Bus
142 volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
143 volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
149 get_sys_info(&sysinfo);
150 clkdiv = (lbc->lcrr & 0x0f) * 2;
151 lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv;
153 gur->lbiuiplldcr1 = 0x00078080;
155 gur->lbiuiplldcr0 = 0x7c0f1bf0;
156 } else if (clkdiv == 8) {
157 gur->lbiuiplldcr0 = 0x6c0f1bf0;
158 } else if (clkdiv == 4) {
159 gur->lbiuiplldcr0 = 0x5c0f1bf0;
162 lbc->lcrr |= 0x00030000;
164 asm("sync;isync;msync");
166 lbc->ltesr = 0xffffffff; /* Clear LBC error interrupts */
167 lbc->lteir = 0xffffffff; /* Enable LBC error interrupts */
171 * Initialize SDRAM memory on the Local Bus.
176 #if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM)
179 volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
180 uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE;
186 print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
189 * Setup SDRAM Base and Option Registers
191 lbc->or2 = CFG_OR2_PRELIM;
194 lbc->br2 = CFG_BR2_PRELIM;
197 lbc->lbcr = CFG_LBC_LBCR;
201 lbc->lsrt = CFG_LBC_LSRT;
202 lbc->mrtpr = CFG_LBC_MRTPR;
206 * MPC8548 uses "new" 15-16 style addressing.
208 cpu_board_rev = get_cpu_board_revision();
209 lsdmr_common = CFG_LBC_LSDMR_COMMON;
210 lsdmr_common |= CFG_LBC_LSDMR_BSMA1516;
213 * Issue PRECHARGE ALL command.
215 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_PCHALL;
218 ppcDcbf((unsigned long) sdram_addr);
222 * Issue 8 AUTO REFRESH commands.
224 for (idx = 0; idx < 8; idx++) {
225 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_ARFRSH;
228 ppcDcbf((unsigned long) sdram_addr);
233 * Issue 8 MODE-set command.
235 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_MRW;
238 ppcDcbf((unsigned long) sdram_addr);
242 * Issue NORMAL OP command.
244 lbc->lsdmr = lsdmr_common | CFG_LBC_LSDMR_OP_NORMAL;
247 ppcDcbf((unsigned long) sdram_addr);
248 udelay(200); /* Overkill. Must wait > 200 bus cycles */
250 #endif /* enable SDRAM init */
253 #if defined(CONFIG_PCI) || defined(CONFIG_PCI1)
254 /* For some reason the Tundra PCI bridge shows up on itself as a
255 * different device. Work around that by refusing to configure it.
257 void dummy_func(struct pci_controller* hose, pci_dev_t dev, struct pci_config_table *tab) { }
259 static struct pci_config_table pci_mpc85xxcds_config_table[] = {
260 {0x10e3, 0x0513, PCI_ANY_ID, 1, 3, PCI_ANY_ID, dummy_func, {0,0,0}},
261 {0x1106, 0x0686, PCI_ANY_ID, 1, VIA_ID, 0, mpc85xx_config_via, {0,0,0}},
262 {0x1106, 0x0571, PCI_ANY_ID, 1, VIA_ID, 1,
263 mpc85xx_config_via_usbide, {0,0,0}},
264 {0x1105, 0x3038, PCI_ANY_ID, 1, VIA_ID, 2,
265 mpc85xx_config_via_usb, {0,0,0}},
266 {0x1106, 0x3038, PCI_ANY_ID, 1, VIA_ID, 3,
267 mpc85xx_config_via_usb2, {0,0,0}},
268 {0x1106, 0x3058, PCI_ANY_ID, 1, VIA_ID, 5,
269 mpc85xx_config_via_power, {0,0,0}},
270 {0x1106, 0x3068, PCI_ANY_ID, 1, VIA_ID, 6,
271 mpc85xx_config_via_ac97, {0,0,0}},
275 static struct pci_controller pci1_hose = {
276 config_table: pci_mpc85xxcds_config_table};
277 #endif /* CONFIG_PCI */
280 static struct pci_controller pci2_hose;
281 #endif /* CONFIG_PCI2 */
284 static struct pci_controller pcie1_hose;
285 #endif /* CONFIG_PCIE1 */
287 int first_free_busno=0;
292 volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
293 uint io_sel = (gur->pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
294 uint host_agent = (gur->porbmsr & MPC85xx_PORBMSR_HA) >> 16;
299 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCI1_ADDR;
300 extern void fsl_pci_init(struct pci_controller *hose);
301 struct pci_controller *hose = &pci1_hose;
302 struct pci_config_table *table;
304 uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32; /* PORDEVSR[15] */
305 uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB; /* PORDEVSR[14] */
306 uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD; /* PORPLLSR[16] */
308 uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
310 uint pci_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
312 if (!(gur->devdisr & MPC85xx_DEVDISR_PCI1)) {
313 printf (" PCI: %d bit, %s MHz, %s, %s, %s\n",
315 (pci_speed == 33333000) ? "33" :
316 (pci_speed == 66666000) ? "66" : "unknown",
317 pci_clk_sel ? "sync" : "async",
318 pci_agent ? "agent" : "host",
319 pci_arb ? "arbiter" : "external-arbiter"
324 pci_set_region(hose->regions + 0,
328 PCI_REGION_MEM | PCI_REGION_MEMORY);
331 /* outbound memory */
332 pci_set_region(hose->regions + 1,
339 pci_set_region(hose->regions + 2,
344 hose->region_count = 3;
346 /* relocate config table pointers */
347 hose->config_table = \
348 (struct pci_config_table *)((uint)hose->config_table + gd->reloc_off);
349 for (table = hose->config_table; table && table->vendor; table++)
350 table->config_device += gd->reloc_off;
352 hose->first_busno=first_free_busno;
353 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
356 first_free_busno=hose->last_busno+1;
357 printf ("PCI on bus %02x - %02x\n",hose->first_busno,hose->last_busno);
358 #ifdef CONFIG_PCIX_CHECK
359 if (!(gur->pordevsr & PORDEVSR_PCI)) {
361 if (CONFIG_SYS_CLK_FREQ < 66000000)
362 printf("PCI-X will only work at 66 MHz\n");
364 reg16 = PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ
365 | PCI_X_CMD_ERO | PCI_X_CMD_DPERR_E;
366 pci_hose_write_config_word(hose, bus, PCIX_COMMAND, reg16);
370 printf (" PCI: disabled\n");
374 gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
379 uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
380 uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
382 printf (" PCI2: 32 bit, 66 MHz, %s\n",
383 pci2_clk_sel ? "sync" : "async");
385 printf (" PCI2: disabled\n");
389 gur->devdisr |= MPC85xx_DEVDISR_PCI2; /* disable */
390 #endif /* CONFIG_PCI2 */
394 volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CFG_PCIE1_ADDR;
395 extern void fsl_pci_init(struct pci_controller *hose);
396 struct pci_controller *hose = &pcie1_hose;
397 int pcie_ep = (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
399 int pcie_configured = io_sel >= 1;
401 if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
402 printf ("\n PCIE connected to slot as %s (base address %x)",
403 pcie_ep ? "End Point" : "Root Complex",
406 if (pci->pme_msg_det) {
407 pci->pme_msg_det = 0xffffffff;
408 debug (" with errors. Clearing. Now 0x%08x",pci->pme_msg_det);
413 pci_set_region(hose->regions + 0,
417 PCI_REGION_MEM | PCI_REGION_MEMORY);
419 /* outbound memory */
420 pci_set_region(hose->regions + 1,
427 pci_set_region(hose->regions + 2,
433 hose->region_count = 3;
435 hose->first_busno=first_free_busno;
436 pci_setup_indirect(hose, (int) &pci->cfg_addr, (int) &pci->cfg_data);
439 printf ("PCIE on bus %d - %d\n",hose->first_busno,hose->last_busno);
441 first_free_busno=hose->last_busno+1;
444 printf (" PCIE: disabled\n");
448 gur->devdisr |= MPC85xx_DEVDISR_PCIE; /* disable */
453 int last_stage_init(void)
457 /* Change the resistors for the PHY */
458 /* This is needed to get the RGMII working for the 1.3+
460 if (get_board_version() == 0x13) {
461 miiphy_write(CONFIG_TSEC1_NAME,
462 TSEC1_PHY_ADDR, 29, 18);
464 miiphy_read(CONFIG_TSEC1_NAME,
465 TSEC1_PHY_ADDR, 30, &temp);
467 temp = (temp & 0xf03f);
468 temp |= 2 << 9; /* 36 ohm */
469 temp |= 2 << 6; /* 39 ohm */
471 miiphy_write(CONFIG_TSEC1_NAME,
472 TSEC1_PHY_ADDR, 30, temp);
474 miiphy_write(CONFIG_TSEC1_NAME,
475 TSEC1_PHY_ADDR, 29, 3);
477 miiphy_write(CONFIG_TSEC1_NAME,
478 TSEC1_PHY_ADDR, 30, 0x8000);
485 #if defined(CONFIG_OF_BOARD_SETUP)
487 ft_pci_setup(void *blob, bd_t *bd)
492 node = fdt_path_offset(blob, "/aliases");
496 path = fdt_getprop(blob, node, "pci0", NULL);
498 tmp[1] = pci1_hose.last_busno - pci1_hose.first_busno;
499 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);
503 path = fdt_getprop(blob, node, "pci1", NULL);
505 tmp[1] = pcie1_hose.last_busno - pcie1_hose.first_busno;
506 do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1);