diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pci-exynos.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-exynos.c | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index 7734394953e5..6498b615c834 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -229,30 +229,9 @@ static void exynos_pcie_assert_reset(struct exynos_pcie *ep) GPIOF_OUT_INIT_HIGH, "RESET"); } -static int exynos_pcie_establish_link(struct exynos_pcie *ep) +static int exynos_pcie_start_link(struct dw_pcie *pci) { - struct dw_pcie *pci = ep->pci; - struct pcie_port *pp = &pci->pp; - struct device *dev = pci->dev; - - if (dw_pcie_link_up(pci)) { - dev_err(dev, "Link already up\n"); - return 0; - } - - exynos_pcie_assert_core_reset(ep); - - phy_reset(ep->phy); - - exynos_pcie_writel(ep->mem_res->elbi_base, 1, - PCIE_PWR_RESET); - - phy_power_on(ep->phy); - phy_init(ep->phy); - - exynos_pcie_deassert_core_reset(ep); - dw_pcie_setup_rc(pp); - exynos_pcie_assert_reset(ep); + struct exynos_pcie *ep = to_exynos_pcie(pci); /* assert LTSSM enable */ exynos_pcie_writel(ep->mem_res->elbi_base, PCIE_ELBI_LTSSM_ENABLE, @@ -386,7 +365,20 @@ static int exynos_pcie_host_init(struct pcie_port *pp) pp->bridge->ops = &exynos_pci_ops; - exynos_pcie_establish_link(ep); + exynos_pcie_assert_core_reset(ep); + + phy_reset(ep->phy); + + exynos_pcie_writel(ep->mem_res->elbi_base, 1, + PCIE_PWR_RESET); + + phy_power_on(ep->phy); + phy_init(ep->phy); + + exynos_pcie_deassert_core_reset(ep); + dw_pcie_setup_rc(pp); + exynos_pcie_assert_reset(ep); + exynos_pcie_enable_interrupts(ep); return 0; @@ -430,6 +422,7 @@ static const struct dw_pcie_ops dw_pcie_ops = { .read_dbi = exynos_pcie_read_dbi, .write_dbi = exynos_pcie_write_dbi, .link_up = exynos_pcie_link_up, + .start_link = exynos_pcie_start_link, }; static int __init exynos_pcie_probe(struct platform_device *pdev) |