diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/braswell/pcie.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/soc/intel/braswell/pcie.c b/src/soc/intel/braswell/pcie.c index 19b9c43ed8..1d70eb06c6 100644 --- a/src/soc/intel/braswell/pcie.c +++ b/src/soc/intel/braswell/pcie.c @@ -39,91 +39,10 @@ static inline int is_first_port(device_t dev) return root_port_offset(dev) == PCIE_PORT1_FUNC; } -static const struct reg_script init_static_before_exit_latency[] = { - /* Disable optimized buffer flush fill and latency tolerant reporting */ - REG_PCI_RMW32(DCAP2, ~(OBFFS | LTRMS), 0), - REG_PCI_RMW32(DSTS2, ~(OBFFEN | LTRME), 0), - /* Set maximum payload size. */ - REG_PCI_RMW32(DCAP, ~MPS_MASK, 0), - /* - * Disable transmit datapath flush timer, clear transmit config change - * wait time, clear sideband interface idle counter. - */ - REG_PCI_RMW32(PHYCTL2_IOSFBCTL, ~(TDFT | TXCFGCHWAIT | SIID), 0), - REG_SCRIPT_END, -}; - -static const struct reg_script init_static_after_exit_latency[] = { - /* Set common clock configuration. */ - REG_PCI_OR16(LCTL, CCC), - /* Set NFTS to 0x743a361b */ - REG_PCI_WRITE32(NFTS, 0x743a361b), - /* Set common clock latency to 0x3 */ - REG_PCI_RMW32(MPC, ~CCEL_MASK, (0x3 << CCEL_SHIFT)), - /* Set relay timer policy. */ - REG_PCI_RMW32(RTP, 0xff000000, 0x854c74), - /* Set IOSF packet fast transmit mode and link speed training policy. */ - REG_PCI_OR16(MPC2, IPF | LSTP), - /* - * Channel configuration - enable upstream posted split, set non-posted - * and posted request size - */ - REG_PCI_RMW32(CHCFG, ~UPSD, UNRS | UPRS), - /* Completion status replay enable and set TLP grant count */ - REG_PCI_RMW32(CFG2, ~(LATGC_MASK), CSREN | (3 << LATGC_SHIFT)), - /* Assume no IOAPIC behind root port -- disable EOI forwarding. */ - REG_PCI_OR16(MPC2, EOIFD), - /* Expose AER */ - REG_PCI_RMW32(AERCH, ~0, (1 << 16) | (1 << 0)), - /* set completion timeout to 160ms to 170ms */ - REG_PCI_RMW16(DSTS2, ~CTD, 0x6), - /* Enable AER */ - REG_PCI_OR16(DCTL_DSTS, URE | FEE | NFE | CEE), - /* Read and write back capabaility registers. */ - REG_PCI_OR32(0x34, 0), - REG_PCI_OR32(0x80, 0), - /* Retrain the link. */ - REG_PCI_OR16(LCTL, RL), - REG_SCRIPT_END, -}; - static void pcie_init(device_t dev) { - struct reg_script init_script[] = { - REG_SCRIPT_NEXT(init_static_before_exit_latency), - /* - * Exit latency configuration based on - * PHYCTL2_IOSFBCTL[PLL_OFF_EN] set in root port 1 - */ - REG_PCI_RMW32(LCAP, ~L1EXIT_MASK, - 2 << (L1EXIT_MASK + pll_en_off)), - REG_SCRIPT_NEXT(init_static_after_exit_latency), - /* Disable hot plug, set power to 10W, set slot number. */ - REG_PCI_RMW32(SLCAP, ~(HPC | HPS), - (1 << SLS_SHIFT) | (100 << SLV_SHIFT) | - (root_port_offset(dev) << SLN_SHIFT)), - /* Dynamic clock gating. */ - REG_PCI_OR32(RPPGEN, RPDLCGEN | RPDBCGEN | RPSCGEN), - REG_PCI_OR32(PWRCTL, RPL1SQPOL | RPDTSQPOL), - REG_PCI_OR32(PCIEDBG, SPCE), - REG_SCRIPT_END, - }; - printk(BIOS_SPEW, "%s/%s ( %s )\n", __FILE__, __func__, dev_name(dev)); - - reg_script_run_on_dev(dev, init_script); - - if (is_first_port(dev)) { - struct soc_intel_braswell_config *config = dev->chip_info; - uint32_t reg = pci_read_config32(dev, RPPGEN); - reg |= SRDLCGEN | SRDBCGEN; - - if (config && config->clkreq_enable) - reg |= LCLKREQEN | BBCLKREQEN; - - pci_write_config32(dev, RPPGEN, reg); - } } static const struct reg_script no_dev_behind_port[] = { |