2 * (C) Copyright 2006 - 2007
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Copyright (c) 2005 Cisco Systems. All rights reserved.
6 * Roland Dreier <rolandd@cisco.com>
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
23 #include <asm/processor.h>
24 #include <asm-ppc/io.h>
29 #if defined(CONFIG_440SPE) && defined(CONFIG_PCI)
31 #include <asm/4xx_pcie.h>
35 PTYPE_LEGACY_ENDPOINT = 0x1,
36 PTYPE_ROOT_PORT = 0x4,
43 static u8* pcie_get_base(struct pci_controller *hose, unsigned int devfn)
45 u8 *base = (u8*)hose->cfg_data;
47 /* use local configuration space for the first bus */
48 if (PCI_BUS(devfn) == 0) {
49 if (hose->cfg_data == (u8*)CFG_PCIE0_CFGBASE)
50 base = (u8*)CFG_PCIE0_XCFGBASE;
51 if (hose->cfg_data == (u8*)CFG_PCIE1_CFGBASE)
52 base = (u8*)CFG_PCIE1_XCFGBASE;
53 if (hose->cfg_data == (u8*)CFG_PCIE2_CFGBASE)
54 base = (u8*)CFG_PCIE2_XCFGBASE;
60 static void pcie_dmer_disable(void)
62 mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE),
63 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) | GPL_DMER_MASK_DISA);
64 mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE),
65 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) | GPL_DMER_MASK_DISA);
66 mtdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE),
67 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) | GPL_DMER_MASK_DISA);
70 static void pcie_dmer_enable(void)
72 mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE0_BASE),
73 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE0_BASE)) & ~GPL_DMER_MASK_DISA);
74 mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE1_BASE),
75 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE1_BASE)) & ~GPL_DMER_MASK_DISA);
76 mtdcr (DCRN_PEGPL_CFG (DCRN_PCIE2_BASE),
77 mfdcr (DCRN_PEGPL_CFG(DCRN_PCIE2_BASE)) & ~GPL_DMER_MASK_DISA);
80 static int pcie_read_config(struct pci_controller *hose, unsigned int devfn,
81 int offset, int len, u32 *val) {
87 * Bus numbers are relative to hose->first_busno
89 devfn -= PCI_BDF(hose->first_busno, 0, 0);
92 * NOTICE: configuration space ranges are currenlty mapped only for
93 * the first 16 buses, so such limit must be imposed. In case more
94 * buses are required the TLB settings in board/amcc/<board>/init.S
95 * need to be altered accordingly (one bus takes 1 MB of memory space).
97 if (PCI_BUS(devfn) >= 16)
101 * Only single device/single function is supported for the primary and
102 * secondary buses of the 440SPe host bridge.
104 if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) &&
105 ((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1)))
108 address = pcie_get_base(hose, devfn);
109 offset += devfn << 4;
112 * Reading from configuration space of non-existing device can
113 * generate transaction errors. For the read duration we suppress
114 * assertion of machine check exceptions to avoid those.
116 pcie_dmer_disable ();
120 *val = in_8(hose->cfg_data + offset);
123 *val = in_le16((u16 *)(hose->cfg_data + offset));
126 *val = in_le32((u32*)(hose->cfg_data + offset));
135 static int pcie_write_config(struct pci_controller *hose, unsigned int devfn,
136 int offset, int len, u32 val) {
141 * Bus numbers are relative to hose->first_busno
143 devfn -= PCI_BDF(hose->first_busno, 0, 0);
146 * Same constraints as in pcie_read_config().
148 if (PCI_BUS(devfn) >= 16)
151 if ((!((PCI_FUNC(devfn) == 0) && (PCI_DEV(devfn) == 0))) &&
152 ((PCI_BUS(devfn) == 0) || (PCI_BUS(devfn) == 1)))
155 address = pcie_get_base(hose, devfn);
156 offset += devfn << 4;
159 * Suppress MCK exceptions, similar to pcie_read_config()
161 pcie_dmer_disable ();
165 out_8(hose->cfg_data + offset, val);
168 out_le16((u16 *)(hose->cfg_data + offset), val);
171 out_le32((u32 *)(hose->cfg_data + offset), val);
180 int pcie_read_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 *val)
185 rv = pcie_read_config(hose, dev, offset, 1, &v);
190 int pcie_read_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 *val)
195 rv = pcie_read_config(hose, dev, offset, 2, &v);
200 int pcie_read_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 *val)
205 rv = pcie_read_config(hose, dev, offset, 3, &v);
210 int pcie_write_config_byte(struct pci_controller *hose,pci_dev_t dev,int offset,u8 val)
212 return pcie_write_config(hose,(u32)dev,offset,1,val);
215 int pcie_write_config_word(struct pci_controller *hose,pci_dev_t dev,int offset,u16 val)
217 return pcie_write_config(hose,(u32)dev,offset,2,(u32 )val);
220 int pcie_write_config_dword(struct pci_controller *hose,pci_dev_t dev,int offset,u32 val)
222 return pcie_write_config(hose,(u32)dev,offset,3,(u32 )val);
225 static void ppc4xx_setup_utl(u32 port) {
227 volatile void *utl_base = NULL;
234 mtdcr(DCRN_PEGPL_REGBAH(PCIE0), 0x0000000c);
235 mtdcr(DCRN_PEGPL_REGBAL(PCIE0), 0x20000000);
236 mtdcr(DCRN_PEGPL_REGMSK(PCIE0), 0x00007001);
237 mtdcr(DCRN_PEGPL_SPECIAL(PCIE0), 0x68782800);
241 mtdcr(DCRN_PEGPL_REGBAH(PCIE1), 0x0000000c);
242 mtdcr(DCRN_PEGPL_REGBAL(PCIE1), 0x20001000);
243 mtdcr(DCRN_PEGPL_REGMSK(PCIE1), 0x00007001);
244 mtdcr(DCRN_PEGPL_SPECIAL(PCIE1), 0x68782800);
248 mtdcr(DCRN_PEGPL_REGBAH(PCIE2), 0x0000000c);
249 mtdcr(DCRN_PEGPL_REGBAL(PCIE2), 0x20002000);
250 mtdcr(DCRN_PEGPL_REGMSK(PCIE2), 0x00007001);
251 mtdcr(DCRN_PEGPL_SPECIAL(PCIE2), 0x68782800);
254 utl_base = (unsigned int *)(CFG_PCIE_BASE + 0x1000 * port);
257 * Set buffer allocations and then assert VRB and TXE.
259 out_be32(utl_base + PEUTL_OUTTR, 0x08000000);
260 out_be32(utl_base + PEUTL_INTR, 0x02000000);
261 out_be32(utl_base + PEUTL_OPDBSZ, 0x10000000);
262 out_be32(utl_base + PEUTL_PBBSZ, 0x53000000);
263 out_be32(utl_base + PEUTL_IPHBSZ, 0x08000000);
264 out_be32(utl_base + PEUTL_IPDBSZ, 0x10000000);
265 out_be32(utl_base + PEUTL_RCIRQEN, 0x00f00000);
266 out_be32(utl_base + PEUTL_PCTL, 0x80800066);
269 static int check_error(void)
271 u32 valPE0, valPE1, valPE2;
274 /* SDR0_PEGPLLLCT1 reset */
275 if (!(valPE0 = SDR_READ(PESDR0_PLLLCT1) & 0x01000000)) {
276 printf("PCIE: SDR0_PEGPLLLCT1 reset error 0x%x\n", valPE0);
279 valPE0 = SDR_READ(PESDR0_RCSSET);
280 valPE1 = SDR_READ(PESDR1_RCSSET);
281 valPE2 = SDR_READ(PESDR2_RCSSET);
283 /* SDR0_PExRCSSET rstgu */
284 if (!(valPE0 & 0x01000000) ||
285 !(valPE1 & 0x01000000) ||
286 !(valPE2 & 0x01000000)) {
287 printf("PCIE: SDR0_PExRCSSET rstgu error\n");
291 /* SDR0_PExRCSSET rstdl */
292 if (!(valPE0 & 0x00010000) ||
293 !(valPE1 & 0x00010000) ||
294 !(valPE2 & 0x00010000)) {
295 printf("PCIE: SDR0_PExRCSSET rstdl error\n");
299 /* SDR0_PExRCSSET rstpyn */
300 if ((valPE0 & 0x00001000) ||
301 (valPE1 & 0x00001000) ||
302 (valPE2 & 0x00001000)) {
303 printf("PCIE: SDR0_PExRCSSET rstpyn error\n");
307 /* SDR0_PExRCSSET hldplb */
308 if ((valPE0 & 0x10000000) ||
309 (valPE1 & 0x10000000) ||
310 (valPE2 & 0x10000000)) {
311 printf("PCIE: SDR0_PExRCSSET hldplb error\n");
315 /* SDR0_PExRCSSET rdy */
316 if ((valPE0 & 0x00100000) ||
317 (valPE1 & 0x00100000) ||
318 (valPE2 & 0x00100000)) {
319 printf("PCIE: SDR0_PExRCSSET rdy error\n");
323 /* SDR0_PExRCSSET shutdown */
324 if ((valPE0 & 0x00000100) ||
325 (valPE1 & 0x00000100) ||
326 (valPE2 & 0x00000100)) {
327 printf("PCIE: SDR0_PExRCSSET shutdown error\n");
334 * Initialize PCI Express core
336 int ppc4xx_init_pcie(void)
340 /* Set PLL clock receiver to LVPECL */
341 SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) | 1 << 28);
346 if (!(SDR_READ(PESDR0_PLLLCT2) & 0x10000))
348 printf("PCIE: PESDR_PLLCT2 resistance calibration failed (0x%08x)\n",
349 SDR_READ(PESDR0_PLLLCT2));
352 /* De-assert reset of PCIe PLL, wait for lock */
353 SDR_WRITE(PESDR0_PLLLCT1, SDR_READ(PESDR0_PLLLCT1) & ~(1 << 24));
357 if (!(SDR_READ(PESDR0_PLLLCT3) & 0x10000000)) {
364 printf("PCIE: VCO output not locked\n");
371 * Board-specific pcie initialization
372 * Platform code can reimplement ppc4xx_init_pcie_port_hw() if needed
376 * Initialize various parts of the PCI Express core for our port:
378 * - Set as a root port and enable max width
379 * (PXIE0 -> X8, PCIE1 and PCIE2 -> X4).
380 * - Set up UTL configuration.
381 * - Increase SERDES drive strength to levels suggested by AMCC.
382 * - De-assert RSTPYN, RSTDL and RSTGU.
384 * NOTICE for 440SPE revB chip: PESDRn_UTLSET2 is not set - we leave it
385 * with default setting 0x11310000. The register has new fields,
386 * PESDRn_UTLSET2[LKINE] in particular: clearing it leads to PCIE core
389 #if defined(CONFIG_440SPE)
390 int __ppc4xx_init_pcie_port_hw(int port, int rootport)
396 val = PTYPE_ROOT_PORT << 20;
397 utlset1 = 0x21222222;
399 val = PTYPE_LEGACY_ENDPOINT << 20;
400 utlset1 = 0x20222222;
404 val |= LNKW_X8 << 12;
406 val |= LNKW_X4 << 12;
408 SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
409 SDR_WRITE(SDRN_PESDR_UTLSET1(port), utlset1);
410 if (!ppc440spe_revB())
411 SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x11000000);
412 SDR_WRITE(SDRN_PESDR_HSSL0SET1(port), 0x35000000);
413 SDR_WRITE(SDRN_PESDR_HSSL1SET1(port), 0x35000000);
414 SDR_WRITE(SDRN_PESDR_HSSL2SET1(port), 0x35000000);
415 SDR_WRITE(SDRN_PESDR_HSSL3SET1(port), 0x35000000);
417 SDR_WRITE(PESDR0_HSSL4SET1, 0x35000000);
418 SDR_WRITE(PESDR0_HSSL5SET1, 0x35000000);
419 SDR_WRITE(PESDR0_HSSL6SET1, 0x35000000);
420 SDR_WRITE(PESDR0_HSSL7SET1, 0x35000000);
422 SDR_WRITE(SDRN_PESDR_RCSSET(port), (SDR_READ(SDRN_PESDR_RCSSET(port)) &
423 ~(1 << 24 | 1 << 16)) | 1 << 12);
427 #endif /* CONFIG_440SPE */
429 #if defined(CONFIG_405EX)
430 int __ppc4xx_init_pcie_port_hw(int port, int rootport)
436 * This needs some testing and perhaps changes for
437 * endpoint configuration. Probably no PHY reset at all, etc.
445 SDR_WRITE(SDRN_PESDR_DLPSET(port), val);
446 SDR_WRITE(SDRN_PESDR_UTLSET1(port), 0x20222222);
447 SDR_WRITE(SDRN_PESDR_UTLSET2(port), 0x01110000);
448 SDR_WRITE(SDRN_PESDR_PHYSET1(port), 0x720F0000);
449 SDR_WRITE(SDRN_PESDR_PHYSET2(port), 0x70600003);
451 /* Assert the PE0_PHY reset */
452 SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01010000);
455 /* deassert the PE0_hotreset */
456 SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x01101000);
458 /* poll for phy !reset */
459 while (!(SDR_READ(SDRN_PESDR_PHYSTA(port)) & 0x00001000))
462 /* deassert the PE0_gpl_utl_reset */
463 SDR_WRITE(SDRN_PESDR_RCSSET(port), 0x00101000);
466 mtdcr(DCRN_PEGPL_CFG(PCIE0), 0x10000000); /* guarded on */
468 mtdcr(DCRN_PEGPL_CFG(PCIE1), 0x10000000); /* guarded on */
472 #endif /* CONFIG_405EX */
474 int ppc4xx_init_pcie_port_hw(int port, int rootport)
475 __attribute__((weak, alias("__ppc4xx_init_pcie_port_hw")));
478 * We map PCI Express configuration access into the 512MB regions
480 * NOTICE: revB is very strict about PLB real addressess and ranges to
481 * be mapped for config space; it seems to only work with d_nnnn_nnnn
482 * range (hangs the core upon config transaction attempts when set
483 * otherwise) while revA uses c_nnnn_nnnn.
486 * PCIE0: 0xc_4000_0000
487 * PCIE1: 0xc_8000_0000
488 * PCIE2: 0xc_c000_0000
491 * PCIE0: 0xd_0000_0000
492 * PCIE1: 0xd_2000_0000
493 * PCIE2: 0xd_4000_0000
499 static inline u64 ppc4xx_get_cfgaddr(int port)
501 #if defined(CONFIG_405EX)
503 return (u64)CFG_PCIE0_CFGBASE;
505 return (u64)CFG_PCIE1_CFGBASE;
507 #if defined(CONFIG_440SPE)
508 if (ppc440spe_revB()) {
510 default: /* to satisfy compiler */
512 return 0x0000000d00000000ULL;
514 return 0x0000000d20000000ULL;
516 return 0x0000000d40000000ULL;
520 default: /* to satisfy compiler */
522 return 0x0000000c40000000ULL;
524 return 0x0000000c80000000ULL;
526 return 0x0000000cc0000000ULL;
533 * 4xx boards as end point and root point setup
535 * testing inbound and out bound windows
537 * 4xx boards can be plugged into another 4xx boards or you can get PCI-E
538 * cable which can be used to setup loop back from one port to another port.
539 * Please rememeber that unless there is a endpoint plugged in to root port it
540 * will not initialize. It is the same in case of endpoint , unless there is
541 * root port attached it will not initialize.
543 * In this release of software all the PCI-E ports are configured as either
544 * endpoint or rootpoint.In future we will have support for selective ports
545 * setup as endpoint and root point in single board.
547 * Once your board came up as root point , you can verify by reading
548 * /proc/bus/pci/devices. Where you can see the configuration registers
549 * of end point device attached to the port.
551 * Enpoint cofiguration can be verified by connecting 4xx board to any
552 * host or another 4xx board. Then try to scan the device. In case of
553 * linux use "lspci" or appripriate os command.
555 * How do I verify the inbound and out bound windows ? (4xx to 4xx)
556 * in this configuration inbound and outbound windows are setup to access
557 * sram memroy area. SRAM is at 0x4 0000 0000 , on PLB bus. This address
558 * is mapped at 0x90000000. From u-boot prompt write data 0xb000 0000,
559 * This is waere your POM(PLB out bound memory window) mapped. then
560 * read the data from other 4xx board's u-boot prompt at address
561 * 0x9000 0000(SRAM). Data should match.
562 * In case of inbound , write data to u-boot command prompt at 0xb000 0000
563 * which is mapped to 0x4 0000 0000. Now on rootpoint yucca u-boot prompt check
564 * data at 0x9000 0000(SRAM).Data should match.
566 int ppc4xx_init_pcie_port(int port, int rootport)
568 static int core_init;
569 volatile u32 val = 0;
576 if (ppc4xx_init_pcie())
581 * Initialize various parts of the PCI Express core for our port
583 ppc4xx_init_pcie_port_hw(port, rootport);
586 * Notice: the following delay has critical impact on device
587 * initialization - if too short (<50ms) the link doesn't get up.
591 val = SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port)));
592 if (val & (1 << 20)) {
593 printf("PCIE%d: PGRST failed %08x\n", port, val);
600 val = SDR_READ(SDRN_PESDR_LOOP(sdr_base(port)));
601 if (!(val & 0x00001000)) {
602 printf("PCIE%d: link is not up.\n", port);
607 * Setup UTL registers - but only on revA!
608 * We use default settings for revB chip.
610 if (!ppc440spe_revB())
611 ppc4xx_setup_utl(port);
614 * We map PCI Express configuration access into the 512MB regions
616 addr = ppc4xx_get_cfgaddr(port);
617 low = (u32)(addr & 0x00000000ffffffff);
618 high = (u32)(addr >> 32);
622 mtdcr(DCRN_PEGPL_CFGBAH(PCIE0), high);
623 mtdcr(DCRN_PEGPL_CFGBAL(PCIE0), low);
624 mtdcr(DCRN_PEGPL_CFGMSK(PCIE0), 0xe0000001); /* 512MB region, valid */
627 mtdcr(DCRN_PEGPL_CFGBAH(PCIE1), high);
628 mtdcr(DCRN_PEGPL_CFGBAL(PCIE1), low);
629 mtdcr(DCRN_PEGPL_CFGMSK(PCIE1), 0xe0000001); /* 512MB region, valid */
632 mtdcr(DCRN_PEGPL_CFGBAH(PCIE2), high);
633 mtdcr(DCRN_PEGPL_CFGBAL(PCIE2), low);
634 mtdcr(DCRN_PEGPL_CFGMSK(PCIE2), 0xe0000001); /* 512MB region, valid */
639 * Check for VC0 active and assert RDY.
642 while(!(SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port))) & (1 << 16))) {
644 printf("PCIE%d: VC0 not active\n", port);
649 SDR_WRITE(SDRN_PESDR_RCSSET(sdr_base(port)),
650 SDR_READ(SDRN_PESDR_RCSSET(sdr_base(port))) | 1 << 20);
656 int ppc4xx_init_pcie_rootport(int port)
658 return ppc4xx_init_pcie_port(port, 1);
661 int ppc4xx_init_pcie_endport(int port)
663 return ppc4xx_init_pcie_port(port, 0);
666 void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port)
668 volatile void *mbase = NULL;
669 volatile void *rmbase = NULL;
672 pcie_read_config_byte,
673 pcie_read_config_word,
674 pcie_read_config_dword,
675 pcie_write_config_byte,
676 pcie_write_config_word,
677 pcie_write_config_dword);
681 mbase = (u32 *)CFG_PCIE0_XCFGBASE;
682 rmbase = (u32 *)CFG_PCIE0_CFGBASE;
683 hose->cfg_data = (u8 *)CFG_PCIE0_CFGBASE;
686 mbase = (u32 *)CFG_PCIE1_XCFGBASE;
687 rmbase = (u32 *)CFG_PCIE1_CFGBASE;
688 hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
691 mbase = (u32 *)CFG_PCIE2_XCFGBASE;
692 rmbase = (u32 *)CFG_PCIE2_CFGBASE;
693 hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
698 * Set bus numbers on our root port
700 out_8((u8 *)mbase + PCI_PRIMARY_BUS, 0);
701 out_8((u8 *)mbase + PCI_SECONDARY_BUS, 1);
702 out_8((u8 *)mbase + PCI_SUBORDINATE_BUS, 1);
705 * Set up outbound translation to hose->mem_space from PLB
706 * addresses at an offset of 0xd_0000_0000. We set the low
707 * bits of the mask to 11 to turn off splitting into 8
708 * subregions and to enable the outbound translation.
710 out_le32(mbase + PECFG_POM0LAH, 0x00000000);
711 out_le32(mbase + PECFG_POM0LAL, 0x00000000);
715 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
716 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CFG_PCIE_MEMBASE +
717 port * CFG_PCIE_MEMSIZE);
718 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
719 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
720 ~(CFG_PCIE_MEMSIZE - 1) | 3);
723 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), 0x0000000d);
724 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CFG_PCIE_MEMBASE +
725 port * CFG_PCIE_MEMSIZE);
726 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
727 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
728 ~(CFG_PCIE_MEMSIZE - 1) | 3);
731 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
732 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CFG_PCIE_MEMBASE +
733 port * CFG_PCIE_MEMSIZE);
734 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
735 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
736 ~(CFG_PCIE_MEMSIZE - 1) | 3);
740 /* Set up 16GB inbound memory window at 0 */
741 out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
742 out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
743 out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
744 out_le32(mbase + PECFG_BAR0LMPA, 0);
746 out_le32(mbase + PECFG_PIM01SAH, 0xffff0000);
747 out_le32(mbase + PECFG_PIM01SAL, 0x00000000);
748 out_le32(mbase + PECFG_PIM0LAL, 0);
749 out_le32(mbase + PECFG_PIM0LAH, 0);
750 out_le32(mbase + PECFG_PIM1LAL, 0x00000000);
751 out_le32(mbase + PECFG_PIM1LAH, 0x00000004);
752 out_le32(mbase + PECFG_PIMEN, 0x1);
754 /* Enable I/O, Mem, and Busmaster cycles */
755 out_le16((u16 *)(mbase + PCI_COMMAND),
756 in_le16((u16 *)(mbase + PCI_COMMAND)) |
757 PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
759 /* Set Device and Vendor Id */
762 out_le16(mbase + 0x200, 0xaaa0);
763 out_le16(mbase + 0x202, 0xbed0);
766 out_le16(mbase + 0x200, 0xaaa1);
767 out_le16(mbase + 0x202, 0xbed1);
770 out_le16(mbase + 0x200, 0xaaa2);
771 out_le16(mbase + 0x202, 0xbed2);
774 out_le16(mbase + 0x200, 0xaaa3);
775 out_le16(mbase + 0x202, 0xbed3);
778 /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */
779 out_le32(mbase + 0x208, 0x06040001);
781 printf("PCIE:%d successfully set as rootpoint\n", port);
784 int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port)
786 volatile void *mbase = NULL;
790 pcie_read_config_byte,
791 pcie_read_config_word,
792 pcie_read_config_dword,
793 pcie_write_config_byte,
794 pcie_write_config_word,
795 pcie_write_config_dword);
799 mbase = (u32 *)CFG_PCIE0_XCFGBASE;
800 hose->cfg_data = (u8 *)CFG_PCIE0_CFGBASE;
803 mbase = (u32 *)CFG_PCIE1_XCFGBASE;
804 hose->cfg_data = (u8 *)CFG_PCIE1_CFGBASE;
807 mbase = (u32 *)CFG_PCIE2_XCFGBASE;
808 hose->cfg_data = (u8 *)CFG_PCIE2_CFGBASE;
813 * Set up outbound translation to hose->mem_space from PLB
814 * addresses at an offset of 0xd_0000_0000. We set the low
815 * bits of the mask to 11 to turn off splitting into 8
816 * subregions and to enable the outbound translation.
818 out_le32(mbase + PECFG_POM0LAH, 0x00001ff8);
819 out_le32(mbase + PECFG_POM0LAL, 0x00001000);
823 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE0), 0x0000000d);
824 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE0), CFG_PCIE_MEMBASE +
825 port * CFG_PCIE_MEMSIZE);
826 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE0), 0x7fffffff);
827 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE0),
828 ~(CFG_PCIE_MEMSIZE - 1) | 3);
831 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE1), 0x0000000d);
832 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE1), CFG_PCIE_MEMBASE +
833 port * CFG_PCIE_MEMSIZE);
834 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE1), 0x7fffffff);
835 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE1),
836 ~(CFG_PCIE_MEMSIZE - 1) | 3);
839 mtdcr(DCRN_PEGPL_OMR1BAH(PCIE2), 0x0000000d);
840 mtdcr(DCRN_PEGPL_OMR1BAL(PCIE2), CFG_PCIE_MEMBASE +
841 port * CFG_PCIE_MEMSIZE);
842 mtdcr(DCRN_PEGPL_OMR1MSKH(PCIE2), 0x7fffffff);
843 mtdcr(DCRN_PEGPL_OMR1MSKL(PCIE2),
844 ~(CFG_PCIE_MEMSIZE - 1) | 3);
848 /* Set up 16GB inbound memory window at 0 */
849 out_le32(mbase + PCI_BASE_ADDRESS_0, 0);
850 out_le32(mbase + PCI_BASE_ADDRESS_1, 0);
851 out_le32(mbase + PECFG_BAR0HMPA, 0x7fffffc);
852 out_le32(mbase + PECFG_BAR0LMPA, 0);
853 out_le32(mbase + PECFG_PIM0LAL, 0x00000000);
854 out_le32(mbase + PECFG_PIM0LAH, 0x00000004); /* pointing to SRAM */
855 out_le32(mbase + PECFG_PIMEN, 0x1);
857 /* Enable I/O, Mem, and Busmaster cycles */
858 out_le16((u16 *)(mbase + PCI_COMMAND),
859 in_le16((u16 *)(mbase + PCI_COMMAND)) |
860 PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
861 out_le16(mbase + 0x200,0xcaad); /* Setting vendor ID */
862 out_le16(mbase + 0x202,0xfeed); /* Setting device ID */
865 while(!(SDR_READ(SDRN_PESDR_RCSSTS(sdr_base(port))) & (1 << 8))) {
867 printf("PCIE%d: BME not active\n", port);
873 printf("PCIE:%d successfully set as endpoint\n",port);
877 #endif /* CONFIG_440SPE && CONFIG_PCI */