| /* |
| * Copyright (c) 2005 Cisco Systems. All rights reserved. |
| * Roland Dreier <rolandd@cisco.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #ifndef __4XX_PCIE_H |
| #define __4XX_PCIE_H |
| |
| #include <asm/ppc4xx.h> |
| #include <pci.h> |
| |
| #define DCRN_SDR0_CFGADDR 0x00e |
| #define DCRN_SDR0_CFGDATA 0x00f |
| |
| #if defined(CONFIG_440SPE) |
| #define CONFIG_SYS_PCIE_NR_PORTS 3 |
| |
| #define CONFIG_SYS_PCIE_ADDR_HIGH 0x0000000d |
| |
| #define DCRN_PCIE0_BASE 0x100 |
| #define DCRN_PCIE1_BASE 0x120 |
| #define DCRN_PCIE2_BASE 0x140 |
| |
| #define PCIE0_SDR 0x300 |
| #define PCIE1_SDR 0x340 |
| #define PCIE2_SDR 0x370 |
| #endif |
| |
| #if defined(CONFIG_460EX) || defined(CONFIG_460GT) |
| #define CONFIG_SYS_PCIE_NR_PORTS 2 |
| |
| #define CONFIG_SYS_PCIE_ADDR_HIGH 0x0000000d |
| |
| #define DCRN_PCIE0_BASE 0x100 |
| #define DCRN_PCIE1_BASE 0x120 |
| |
| #define PCIE0_SDR 0x300 |
| #define PCIE1_SDR 0x340 |
| #endif |
| |
| #if defined(CONFIG_405EX) |
| #define CONFIG_SYS_PCIE_NR_PORTS 2 |
| |
| #define CONFIG_SYS_PCIE_ADDR_HIGH 0x00000000 |
| |
| #define DCRN_PCIE0_BASE 0x040 |
| #define DCRN_PCIE1_BASE 0x060 |
| |
| #define PCIE0_SDR 0x400 |
| #define PCIE1_SDR 0x440 |
| #endif |
| |
| #define PCIE0 DCRN_PCIE0_BASE |
| #define PCIE1 DCRN_PCIE1_BASE |
| #define PCIE2 DCRN_PCIE2_BASE |
| |
| #define DCRN_PEGPL_CFGBAH(base) (base + 0x00) |
| #define DCRN_PEGPL_CFGBAL(base) (base + 0x01) |
| #define DCRN_PEGPL_CFGMSK(base) (base + 0x02) |
| #define DCRN_PEGPL_MSGBAH(base) (base + 0x03) |
| #define DCRN_PEGPL_MSGBAL(base) (base + 0x04) |
| #define DCRN_PEGPL_MSGMSK(base) (base + 0x05) |
| #define DCRN_PEGPL_OMR1BAH(base) (base + 0x06) |
| #define DCRN_PEGPL_OMR1BAL(base) (base + 0x07) |
| #define DCRN_PEGPL_OMR1MSKH(base) (base + 0x08) |
| #define DCRN_PEGPL_OMR1MSKL(base) (base + 0x09) |
| #define DCRN_PEGPL_REGBAH(base) (base + 0x12) |
| #define DCRN_PEGPL_REGBAL(base) (base + 0x13) |
| #define DCRN_PEGPL_REGMSK(base) (base + 0x14) |
| #define DCRN_PEGPL_SPECIAL(base) (base + 0x15) |
| #define DCRN_PEGPL_CFG(base) (base + 0x16) |
| |
| /* |
| * System DCRs (SDRs) |
| */ |
| #define PESDR0_PLLLCT1 0x03a0 |
| #define PESDR0_PLLLCT2 0x03a1 |
| #define PESDR0_PLLLCT3 0x03a2 |
| |
| /* common regs, at for all 4xx with PCIe core */ |
| #define SDRN_PESDR_UTLSET1(n) (sdr_base(n) + 0x00) |
| #define SDRN_PESDR_UTLSET2(n) (sdr_base(n) + 0x01) |
| #define SDRN_PESDR_DLPSET(n) (sdr_base(n) + 0x02) |
| #define SDRN_PESDR_LOOP(n) (sdr_base(n) + 0x03) |
| #define SDRN_PESDR_RCSSET(n) (sdr_base(n) + 0x04) |
| #define SDRN_PESDR_RCSSTS(n) (sdr_base(n) + 0x05) |
| |
| #if defined(CONFIG_440SPE) |
| #define SDRN_PESDR_HSSL0SET1(n) (sdr_base(n) + 0x06) |
| #define SDRN_PESDR_HSSL0SET2(n) (sdr_base(n) + 0x07) |
| #define SDRN_PESDR_HSSL0STS(n) (sdr_base(n) + 0x08) |
| #define SDRN_PESDR_HSSL1SET1(n) (sdr_base(n) + 0x09) |
| #define SDRN_PESDR_HSSL1SET2(n) (sdr_base(n) + 0x0a) |
| #define SDRN_PESDR_HSSL1STS(n) (sdr_base(n) + 0x0b) |
| #define SDRN_PESDR_HSSL2SET1(n) (sdr_base(n) + 0x0c) |
| #define SDRN_PESDR_HSSL2SET2(n) (sdr_base(n) + 0x0d) |
| #define SDRN_PESDR_HSSL2STS(n) (sdr_base(n) + 0x0e) |
| #define SDRN_PESDR_HSSL3SET1(n) (sdr_base(n) + 0x0f) |
| #define SDRN_PESDR_HSSL3SET2(n) (sdr_base(n) + 0x10) |
| #define SDRN_PESDR_HSSL3STS(n) (sdr_base(n) + 0x11) |
| |
| #define PESDR0_UTLSET1 0x0300 |
| #define PESDR0_UTLSET2 0x0301 |
| #define PESDR0_DLPSET 0x0302 |
| #define PESDR0_LOOP 0x0303 |
| #define PESDR0_RCSSET 0x0304 |
| #define PESDR0_RCSSTS 0x0305 |
| #define PESDR0_HSSL0SET1 0x0306 |
| #define PESDR0_HSSL0SET2 0x0307 |
| #define PESDR0_HSSL0STS 0x0308 |
| #define PESDR0_HSSL1SET1 0x0309 |
| #define PESDR0_HSSL1SET2 0x030a |
| #define PESDR0_HSSL1STS 0x030b |
| #define PESDR0_HSSL2SET1 0x030c |
| #define PESDR0_HSSL2SET2 0x030d |
| #define PESDR0_HSSL2STS 0x030e |
| #define PESDR0_HSSL3SET1 0x030f |
| #define PESDR0_HSSL3SET2 0x0310 |
| #define PESDR0_HSSL3STS 0x0311 |
| #define PESDR0_HSSL4SET1 0x0312 |
| #define PESDR0_HSSL4SET2 0x0313 |
| #define PESDR0_HSSL4STS 0x0314 |
| #define PESDR0_HSSL5SET1 0x0315 |
| #define PESDR0_HSSL5SET2 0x0316 |
| #define PESDR0_HSSL5STS 0x0317 |
| #define PESDR0_HSSL6SET1 0x0318 |
| #define PESDR0_HSSL6SET2 0x0319 |
| #define PESDR0_HSSL6STS 0x031a |
| #define PESDR0_HSSL7SET1 0x031b |
| #define PESDR0_HSSL7SET2 0x031c |
| #define PESDR0_HSSL7STS 0x031d |
| #define PESDR0_HSSCTLSET 0x031e |
| #define PESDR0_LANE_ABCD 0x031f |
| #define PESDR0_LANE_EFGH 0x0320 |
| |
| #define PESDR1_UTLSET1 0x0340 |
| #define PESDR1_UTLSET2 0x0341 |
| #define PESDR1_DLPSET 0x0342 |
| #define PESDR1_LOOP 0x0343 |
| #define PESDR1_RCSSET 0x0344 |
| #define PESDR1_RCSSTS 0x0345 |
| #define PESDR1_HSSL0SET1 0x0346 |
| #define PESDR1_HSSL0SET2 0x0347 |
| #define PESDR1_HSSL0STS 0x0348 |
| #define PESDR1_HSSL1SET1 0x0349 |
| #define PESDR1_HSSL1SET2 0x034a |
| #define PESDR1_HSSL1STS 0x034b |
| #define PESDR1_HSSL2SET1 0x034c |
| #define PESDR1_HSSL2SET2 0x034d |
| #define PESDR1_HSSL2STS 0x034e |
| #define PESDR1_HSSL3SET1 0x034f |
| #define PESDR1_HSSL3SET2 0x0350 |
| #define PESDR1_HSSL3STS 0x0351 |
| #define PESDR1_HSSCTLSET 0x0352 |
| #define PESDR1_LANE_ABCD 0x0353 |
| |
| #define PESDR2_UTLSET1 0x0370 |
| #define PESDR2_UTLSET2 0x0371 |
| #define PESDR2_DLPSET 0x0372 |
| #define PESDR2_LOOP 0x0373 |
| #define PESDR2_RCSSET 0x0374 |
| #define PESDR2_RCSSTS 0x0375 |
| #define PESDR2_HSSL0SET1 0x0376 |
| #define PESDR2_HSSL0SET2 0x0377 |
| #define PESDR2_HSSL0STS 0x0378 |
| #define PESDR2_HSSL1SET1 0x0379 |
| #define PESDR2_HSSL1SET2 0x037a |
| #define PESDR2_HSSL1STS 0x037b |
| #define PESDR2_HSSL2SET1 0x037c |
| #define PESDR2_HSSL2SET2 0x037d |
| #define PESDR2_HSSL2STS 0x037e |
| #define PESDR2_HSSL3SET1 0x037f |
| #define PESDR2_HSSL3SET2 0x0380 |
| #define PESDR2_HSSL3STS 0x0381 |
| #define PESDR2_HSSCTLSET 0x0382 |
| #define PESDR2_LANE_ABCD 0x0383 |
| |
| #elif defined(CONFIG_405EX) |
| |
| #define SDRN_PESDR_PHYSET1(n) (sdr_base(n) + 0x06) |
| #define SDRN_PESDR_PHYSET2(n) (sdr_base(n) + 0x07) |
| #define SDRN_PESDR_BIST(n) (sdr_base(n) + 0x08) |
| #define SDRN_PESDR_LPB(n) (sdr_base(n) + 0x0b) |
| #define SDRN_PESDR_PHYSTA(n) (sdr_base(n) + 0x0c) |
| |
| #define PESDR0_UTLSET1 0x0400 |
| #define PESDR0_UTLSET2 0x0401 |
| #define PESDR0_DLPSET 0x0402 |
| #define PESDR0_LOOP 0x0403 |
| #define PESDR0_RCSSET 0x0404 |
| #define PESDR0_RCSSTS 0x0405 |
| #define PESDR0_PHYSET1 0x0406 |
| #define PESDR0_PHYSET2 0x0407 |
| #define PESDR0_BIST 0x0408 |
| #define PESDR0_LPB 0x040B |
| #define PESDR0_PHYSTA 0x040C |
| |
| #define PESDR1_UTLSET1 0x0440 |
| #define PESDR1_UTLSET2 0x0441 |
| #define PESDR1_DLPSET 0x0442 |
| #define PESDR1_LOOP 0x0443 |
| #define PESDR1_RCSSET 0x0444 |
| #define PESDR1_RCSSTS 0x0445 |
| #define PESDR1_PHYSET1 0x0446 |
| #define PESDR1_PHYSET2 0x0447 |
| #define PESDR1_BIST 0x0448 |
| #define PESDR1_LPB 0x044B |
| #define PESDR1_PHYSTA 0x044C |
| |
| #elif defined(CONFIG_460EX) || defined(CONFIG_460GT) |
| |
| #define PESDR0_L0BIST 0x0308 /* PE0 L0 built in self test */ |
| #define PESDR0_L0BISTSTS 0x0309 /* PE0 L0 built in self test status */ |
| #define PESDR0_L0CDRCTL 0x030A /* PE0 L0 CDR control */ |
| #define PESDR0_L0DRV 0x030B /* PE0 L0 drive */ |
| #define PESDR0_L0REC 0x030C /* PE0 L0 receiver */ |
| #define PESDR0_L0LPB 0x030D /* PE0 L0 loopback */ |
| #define PESDR0_L0CLK 0x030E /* PE0 L0 clocking */ |
| #define PESDR0_PHY_CTL_RST 0x030F /* PE0 PHY control reset */ |
| #define PESDR0_RSTSTA 0x0310 /* PE0 reset status */ |
| #define PESDR0_OBS 0x0311 /* PE0 observation register */ |
| #define PESDR0_L0ERRC 0x0320 /* PE0 L0 error counter */ |
| |
| #define PESDR1_L0BIST 0x0348 /* PE1 L0 built in self test */ |
| #define PESDR1_L1BIST 0x0349 /* PE1 L1 built in self test */ |
| #define PESDR1_L2BIST 0x034A /* PE1 L2 built in self test */ |
| #define PESDR1_L3BIST 0x034B /* PE1 L3 built in self test */ |
| #define PESDR1_L0BISTSTS 0x034C /* PE1 L0 built in self test status */ |
| #define PESDR1_L1BISTSTS 0x034D /* PE1 L1 built in self test status */ |
| #define PESDR1_L2BISTSTS 0x034E /* PE1 L2 built in self test status */ |
| #define PESDR1_L3BISTSTS 0x034F /* PE1 L3 built in self test status */ |
| #define PESDR1_L0CDRCTL 0x0350 /* PE1 L0 CDR control */ |
| #define PESDR1_L1CDRCTL 0x0351 /* PE1 L1 CDR control */ |
| #define PESDR1_L2CDRCTL 0x0352 /* PE1 L2 CDR control */ |
| #define PESDR1_L3CDRCTL 0x0353 /* PE1 L3 CDR control */ |
| #define PESDR1_L0DRV 0x0354 /* PE1 L0 drive */ |
| #define PESDR1_L1DRV 0x0355 /* PE1 L1 drive */ |
| #define PESDR1_L2DRV 0x0356 /* PE1 L2 drive */ |
| #define PESDR1_L3DRV 0x0357 /* PE1 L3 drive */ |
| #define PESDR1_L0REC 0x0358 /* PE1 L0 receiver */ |
| #define PESDR1_L1REC 0x0359 /* PE1 L1 receiver */ |
| #define PESDR1_L2REC 0x035A /* PE1 L2 receiver */ |
| #define PESDR1_L3REC 0x035B /* PE1 L3 receiver */ |
| #define PESDR1_L0LPB 0x035C /* PE1 L0 loopback */ |
| #define PESDR1_L1LPB 0x035D /* PE1 L1 loopback */ |
| #define PESDR1_L2LPB 0x035E /* PE1 L2 loopback */ |
| #define PESDR1_L3LPB 0x035F /* PE1 L3 loopback */ |
| #define PESDR1_L0CLK 0x0360 /* PE1 L0 clocking */ |
| #define PESDR1_L1CLK 0x0361 /* PE1 L1 clocking */ |
| #define PESDR1_L2CLK 0x0362 /* PE1 L2 clocking */ |
| #define PESDR1_L3CLK 0x0363 /* PE1 L3 clocking */ |
| #define PESDR1_PHY_CTL_RST 0x0364 /* PE1 PHY control reset */ |
| #define PESDR1_RSTSTA 0x0365 /* PE1 reset status */ |
| #define PESDR1_OBS 0x0366 /* PE1 observation register */ |
| #define PESDR1_L0ERRC 0x0368 /* PE1 L0 error counter */ |
| #define PESDR1_L1ERRC 0x0369 /* PE1 L1 error counter */ |
| #define PESDR1_L2ERRC 0x036A /* PE1 L2 error counter */ |
| #define PESDR1_L3ERRC 0x036B /* PE1 L3 error counter */ |
| #define PESDR0_IHS1 0x036C /* PE interrupt handler interfact setting 1 */ |
| #define PESDR0_IHS2 0x036D /* PE interrupt handler interfact setting 2 */ |
| |
| #endif |
| |
| /* SDR Bit Mappings */ |
| #define PESDRx_RCSSET_HLDPLB 0x10000000 |
| #define PESDRx_RCSSET_RSTGU 0x01000000 |
| #define PESDRx_RCSSET_RDY 0x00100000 |
| #define PESDRx_RCSSET_RSTDL 0x00010000 |
| #define PESDRx_RCSSET_RSTPYN 0x00001000 |
| |
| #define PESDRx_RCSSTS_PLBIDL 0x10000000 |
| #define PESDRx_RCSSTS_HRSTRQ 0x01000000 |
| #define PESDRx_RCSSTS_PGRST 0x00100000 |
| #define PESDRx_RCSSTS_VC0ACT 0x00010000 |
| #define PESDRx_RCSSTS_BMEN 0x00000100 |
| |
| /* |
| * UTL register offsets |
| */ |
| #define PEUTL_PBCTL 0x00 |
| #define PEUTL_PBBSZ 0x20 |
| #define PEUTL_OPDBSZ 0x68 |
| #define PEUTL_IPHBSZ 0x70 |
| #define PEUTL_IPDBSZ 0x78 |
| #define PEUTL_OUTTR 0x90 |
| #define PEUTL_INTR 0x98 |
| #define PEUTL_PCTL 0xa0 |
| #define PEUTL_RCSTA 0xb0 |
| #define PEUTL_RCIRQEN 0xb8 |
| |
| /* |
| * Config space register offsets |
| */ |
| #define PECFG_BAR0LMPA 0x210 |
| #define PECFG_BAR0HMPA 0x214 |
| #define PECFG_BAR1MPA 0x218 |
| #define PECFG_BAR2LMPA 0x220 |
| #define PECFG_BAR2HMPA 0x224 |
| |
| #define PECFG_PIMEN 0x33c |
| #define PECFG_PIM0LAL 0x340 |
| #define PECFG_PIM0LAH 0x344 |
| #define PECFG_PIM1LAL 0x348 |
| #define PECFG_PIM1LAH 0x34c |
| #define PECFG_PIM01SAL 0x350 |
| #define PECFG_PIM01SAH 0x354 |
| |
| #define PECFG_POM0LAL 0x380 |
| #define PECFG_POM0LAH 0x384 |
| |
| #define SDR_READ(offset) ({\ |
| mtdcr(DCRN_SDR0_CFGADDR, offset); \ |
| mfdcr(DCRN_SDR0_CFGDATA);}) |
| |
| #define SDR_WRITE(offset, data) ({\ |
| mtdcr(DCRN_SDR0_CFGADDR, offset); \ |
| mtdcr(DCRN_SDR0_CFGDATA,data);}) |
| |
| #define GPL_DMER_MASK_DISA 0x02000000 |
| |
| #define U64_TO_U32_LOW(val) ((u32)((val) & 0x00000000ffffffffULL)) |
| #define U64_TO_U32_HIGH(val) ((u32)((val) >> 32)) |
| |
| /* |
| * Prototypes |
| */ |
| int ppc4xx_init_pcie(void); |
| int ppc4xx_init_pcie_rootport(int port); |
| int ppc4xx_init_pcie_endport(int port); |
| void ppc4xx_setup_pcie_rootpoint(struct pci_controller *hose, int port); |
| int ppc4xx_setup_pcie_endpoint(struct pci_controller *hose, int port); |
| int pcie_hose_scan(struct pci_controller *hose, int bus); |
| |
| /* |
| * Function to determine root port or endport from env variable. |
| */ |
| static inline int is_end_point(int port) |
| { |
| char s[10], *tk; |
| char *pcie_mode = getenv("pcie_mode"); |
| |
| if (pcie_mode == NULL) |
| return 0; |
| |
| strcpy(s, pcie_mode); |
| tk = strtok(s, ":"); |
| |
| switch (port) { |
| case 0: |
| if (tk != NULL) { |
| if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) |
| return 1; |
| else |
| return 0; |
| } |
| else |
| return 0; |
| |
| case 1: |
| tk = strtok(NULL, ":"); |
| if (tk != NULL) { |
| if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) |
| return 1; |
| else |
| return 0; |
| } |
| else |
| return 0; |
| |
| case 2: |
| tk = strtok(NULL, ":"); |
| if (tk != NULL) |
| tk = strtok(NULL, ":"); |
| if (tk != NULL) { |
| if (!(strcmp(tk, "ep") && strcmp(tk, "EP"))) |
| return 1; |
| else |
| return 0; |
| } |
| else |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| #if defined(PCIE0_SDR) |
| static inline u32 sdr_base(int port) |
| { |
| switch (port) { |
| default: /* to satisfy compiler */ |
| case 0: |
| return PCIE0_SDR; |
| case 1: |
| return PCIE1_SDR; |
| #if CONFIG_SYS_PCIE_NR_PORTS > 2 |
| case 2: |
| return PCIE2_SDR; |
| #endif |
| } |
| } |
| #endif /* defined(PCIE0_SDR) */ |
| |
| #endif /* __4XX_PCIE_H */ |
