diff options
Diffstat (limited to 'src/soc/mediatek/common/pcie.c')
| -rw-r--r-- | src/soc/mediatek/common/pcie.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/soc/mediatek/common/pcie.c b/src/soc/mediatek/common/pcie.c index 39714e161a..e796dc1ece 100644 --- a/src/soc/mediatek/common/pcie.c +++ b/src/soc/mediatek/common/pcie.c @@ -247,6 +247,16 @@ void mtk_pcie_domain_set_resources(struct device *dev) pci_domain_set_resources(dev); } +void mtk_pcie_reset(uintptr_t base_reg, bool enable) +{ + uint32_t flags = PCIE_MAC_RSTB | PCIE_PHY_RSTB | PCIE_BRG_RSTB | PCIE_PE_RSTB; + + if (enable) + setbits32p(base_reg + PCIE_RST_CTRL_REG, flags); + else + clrbits32p(base_reg + PCIE_RST_CTRL_REG, flags); +} + enum cb_err fill_lb_pcie(struct lb_pcie *pcie) { if (!pci_root_bus()) @@ -291,7 +301,7 @@ void mtk_pcie_domain_enable(struct device *dev) printk(BIOS_WARNING, "%s: PCIe early init data not found, sleeping 100ms\n", __func__); - mtk_pcie_reset(conf->base + PCIE_RST_CTRL_REG, true); + mtk_pcie_reset(conf->base, true); } else { printk(BIOS_WARNING, "%s: Need an extra %ld us delay to meet PERST# deassertion requirement\n", @@ -302,7 +312,7 @@ void mtk_pcie_domain_enable(struct device *dev) } /* De-assert reset signals */ - mtk_pcie_reset(conf->base + PCIE_RST_CTRL_REG, false); + mtk_pcie_reset(conf->base, false); if (!retry(100, (tries++, read32p(conf->base + PCIE_LINK_STATUS_REG) & |