diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-exynos.c | 1 | ||||
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-qcom-ep.c | 1 | ||||
| -rw-r--r-- | drivers/pci/controller/pci-aardvark.c | 9 | ||||
| -rw-r--r-- | drivers/pci/controller/pcie-apple.c | 14 |
4 files changed, 14 insertions, 11 deletions
diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index c24dab383654..722dacdd5a17 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/phy/phy.h> #include <linux/regulator/consumer.h> +#include <linux/module.h> #include "pcie-designware.h" diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index 7b17da2f9b3f..cfe66bf04c1d 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -18,6 +18,7 @@ #include <linux/pm_domain.h> #include <linux/regmap.h> #include <linux/reset.h> +#include <linux/module.h> #include "pcie-designware.h" diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index c5300d49807a..c3b725afa11f 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -32,7 +32,6 @@ #define PCIE_CORE_DEV_ID_REG 0x0 #define PCIE_CORE_CMD_STATUS_REG 0x4 #define PCIE_CORE_DEV_REV_REG 0x8 -#define PCIE_CORE_EXP_ROM_BAR_REG 0x30 #define PCIE_CORE_PCIEXP_CAP 0xc0 #define PCIE_CORE_ERR_CAPCTL_REG 0x118 #define PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX BIT(5) @@ -774,10 +773,6 @@ advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge, *value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG); return PCI_BRIDGE_EMUL_HANDLED; - case PCI_ROM_ADDRESS1: - *value = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG); - return PCI_BRIDGE_EMUL_HANDLED; - case PCI_INTERRUPT_LINE: { /* * From the whole 32bit register we support reading from HW only @@ -810,10 +805,6 @@ advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge, advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG); break; - case PCI_ROM_ADDRESS1: - advk_writel(pcie, new, PCIE_CORE_EXP_ROM_BAR_REG); - break; - case PCI_INTERRUPT_LINE: if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) { u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG); diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 1bf4d75b61be..b090924b41fe 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -516,7 +516,7 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie, int ret, i; reset = gpiod_get_from_of_node(np, "reset-gpios", 0, - GPIOD_OUT_LOW, "#PERST"); + GPIOD_OUT_LOW, "PERST#"); if (IS_ERR(reset)) return PTR_ERR(reset); @@ -539,12 +539,22 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie, rmw_set(PORT_APPCLK_EN, port->base + PORT_APPCLK); + /* Assert PERST# before setting up the clock */ + gpiod_set_value(reset, 1); + ret = apple_pcie_setup_refclk(pcie, port); if (ret < 0) return ret; + /* The minimal Tperst-clk value is 100us (PCIe CEM r5.0, 2.9.2) */ + usleep_range(100, 200); + + /* Deassert PERST# */ rmw_set(PORT_PERST_OFF, port->base + PORT_PERST); - gpiod_set_value(reset, 1); + gpiod_set_value(reset, 0); + + /* Wait for 100ms after PERST# deassertion (PCIe r5.0, 6.6.1) */ + msleep(100); ret = readl_relaxed_poll_timeout(port->base + PORT_STATUS, stat, stat & PORT_STATUS_READY, 100, 250000); |