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-rw-r--r--MAINTAINERS9
-rw-r--r--drivers/pci/host/pci-aardvark.c39
-rw-r--r--drivers/pci/host/pci-dra7xx.c103
-rw-r--r--drivers/pci/host/pci-exynos.c220
-rw-r--r--drivers/pci/host/pci-imx6.c250
-rw-r--r--drivers/pci/host/pci-keystone-dw.c123
-rw-r--r--drivers/pci/host/pci-keystone.c28
-rw-r--r--drivers/pci/host/pci-keystone.h9
-rw-r--r--drivers/pci/host/pci-layerscape.c65
-rw-r--r--drivers/pci/host/pci-mvebu.c21
-rw-r--r--drivers/pci/host/pci-rcar-gen2.c46
-rw-r--r--drivers/pci/host/pci-tegra.c237
-rw-r--r--drivers/pci/host/pci-xgene.c151
-rw-r--r--drivers/pci/host/pcie-altera.c77
-rw-r--r--drivers/pci/host/pcie-armada8k.c78
-rw-r--r--drivers/pci/host/pcie-artpec6.c115
-rw-r--r--drivers/pci/host/pcie-designware-plat.c25
-rw-r--r--drivers/pci/host/pcie-designware.c102
-rw-r--r--drivers/pci/host/pcie-designware.h7
-rw-r--r--drivers/pci/host/pcie-hisi.c86
-rw-r--r--drivers/pci/host/pcie-iproc-bcma.c14
-rw-r--r--drivers/pci/host/pcie-iproc-platform.c27
-rw-r--r--drivers/pci/host/pcie-iproc.c52
-rw-r--r--drivers/pci/host/pcie-qcom.c30
-rw-r--r--drivers/pci/host/pcie-rcar.c98
-rw-r--r--drivers/pci/host/pcie-rockchip.c4
-rw-r--r--drivers/pci/host/pcie-spear13xx.c108
-rw-r--r--drivers/pci/host/pcie-xilinx-nwl.c109
-rw-r--r--drivers/pci/host/pcie-xilinx.c62
29 files changed, 1108 insertions, 1187 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index ea4fbc993d91..1fc66f0aceb5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9189,6 +9189,14 @@ S: Maintained
F: Documentation/devicetree/bindings/pci/versatile.txt
F: drivers/pci/host/pci-versatile.c
+PCI DRIVER FOR ARMADA 8K
+M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+L: linux-pci@vger.kernel.org
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: Documentation/devicetree/bindings/pci/pci-armada8k.txt
+F: drivers/pci/host/pcie-armada8k.c
+
PCI DRIVER FOR APPLIEDMICRO XGENE
M: Tanmay Inamdar <tinamdar@apm.com>
L: linux-pci@vger.kernel.org
@@ -9235,6 +9243,7 @@ M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
+F: Documentation/devicetree/bindings/pci/aardvark-pci.txt
F: drivers/pci/host/pci-aardvark.c
PCI DRIVER FOR NVIDIA TEGRA
diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
index e4a5b7ee90cf..4fce494271cc 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c
@@ -230,20 +230,20 @@ static int advk_pcie_link_up(struct advk_pcie *pcie)
static int advk_pcie_wait_for_link(struct advk_pcie *pcie)
{
+ struct device *dev = &pcie->pdev->dev;
int retries;
/* check if the link is up or not */
for (retries = 0; retries < LINK_WAIT_MAX_RETRIES; retries++) {
if (advk_pcie_link_up(pcie)) {
- dev_info(&pcie->pdev->dev, "link up\n");
+ dev_info(dev, "link up\n");
return 0;
}
usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
}
- dev_err(&pcie->pdev->dev, "link never came up\n");
-
+ dev_err(dev, "link never came up\n");
return -ETIMEDOUT;
}
@@ -376,6 +376,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
{
+ struct device *dev = &pcie->pdev->dev;
u32 reg;
unsigned int status;
char *strcomp_status, *str_posted;
@@ -407,12 +408,13 @@ static void advk_pcie_check_pio_status(struct advk_pcie *pcie)
else
str_posted = "Posted";
- dev_err(&pcie->pdev->dev, "%s PIO Response Status: %s, %#x @ %#x\n",
+ dev_err(dev, "%s PIO Response Status: %s, %#x @ %#x\n",
str_posted, strcomp_status, reg, advk_readl(pcie, PIO_ADDR_LS));
}
static int advk_pcie_wait_pio(struct advk_pcie *pcie)
{
+ struct device *dev = &pcie->pdev->dev;
unsigned long timeout;
timeout = jiffies + msecs_to_jiffies(PIO_TIMEOUT_MS);
@@ -426,7 +428,7 @@ static int advk_pcie_wait_pio(struct advk_pcie *pcie)
return 0;
}
- dev_err(&pcie->pdev->dev, "config read/write timed out\n");
+ dev_err(dev, "config read/write timed out\n");
return -ETIMEDOUT;
}
@@ -560,10 +562,11 @@ static int advk_pcie_alloc_msi(struct advk_pcie *pcie)
static void advk_pcie_free_msi(struct advk_pcie *pcie, int hwirq)
{
+ struct device *dev = &pcie->pdev->dev;
+
mutex_lock(&pcie->msi_used_lock);
if (!test_bit(hwirq, pcie->msi_irq_in_use))
- dev_err(&pcie->pdev->dev, "trying to free unused MSI#%d\n",
- hwirq);
+ dev_err(dev, "trying to free unused MSI#%d\n", hwirq);
else
clear_bit(hwirq, pcie->msi_irq_in_use);
mutex_unlock(&pcie->msi_used_lock);
@@ -910,6 +913,7 @@ out_release_res:
static int advk_pcie_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct advk_pcie *pcie;
struct resource *res;
struct pci_bus *bus, *child;
@@ -917,31 +921,29 @@ static int advk_pcie_probe(struct platform_device *pdev)
struct device_node *msi_node;
int ret, irq;
- pcie = devm_kzalloc(&pdev->dev, sizeof(struct advk_pcie),
- GFP_KERNEL);
+ pcie = devm_kzalloc(dev, sizeof(struct advk_pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
pcie->pdev = pdev;
- platform_set_drvdata(pdev, pcie);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- pcie->base = devm_ioremap_resource(&pdev->dev, res);
+ pcie->base = devm_ioremap_resource(dev, res);
if (IS_ERR(pcie->base))
return PTR_ERR(pcie->base);
irq = platform_get_irq(pdev, 0);
- ret = devm_request_irq(&pdev->dev, irq, advk_pcie_irq_handler,
+ ret = devm_request_irq(dev, irq, advk_pcie_irq_handler,
IRQF_SHARED | IRQF_NO_THREAD, "advk-pcie",
pcie);
if (ret) {
- dev_err(&pdev->dev, "Failed to register interrupt\n");
+ dev_err(dev, "Failed to register interrupt\n");
return ret;
}
ret = advk_pcie_parse_request_of_pci_ranges(pcie);
if (ret) {
- dev_err(&pdev->dev, "Failed to parse resources\n");
+ dev_err(dev, "Failed to parse resources\n");
return ret;
}
@@ -949,24 +951,24 @@ static int advk_pcie_probe(struct platform_device *pdev)
ret = advk_pcie_init_irq_domain(pcie);
if (ret) {
- dev_err(&pdev->dev, "Failed to initialize irq\n");
+ dev_err(dev, "Failed to initialize irq\n");
return ret;
}
ret = advk_pcie_init_msi_irq_domain(pcie);
if (ret) {
- dev_err(&pdev->dev, "Failed to initialize irq\n");
+ dev_err(dev, "Failed to initialize irq\n");
advk_pcie_remove_irq_domain(pcie);
return ret;
}
- msi_node = of_parse_phandle(pdev->dev.of_node, "msi-parent", 0);
+ msi_node = of_parse_phandle(dev->of_node, "msi-parent", 0);
if (msi_node)
msi = of_pci_find_msi_chip_by_node(msi_node);
else
msi = NULL;
- bus = pci_scan_root_bus_msi(&pdev->dev, 0, &advk_pcie_ops,
+ bus = pci_scan_root_bus_msi(dev, 0, &advk_pcie_ops,
pcie, &pcie->resources, &pcie->msi);
if (!bus) {
advk_pcie_remove_msi_irq_domain(pcie);
@@ -980,7 +982,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
pcie_bus_configure_settings(child);
pci_bus_add_devices(bus);
-
return 0;
}
diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 19223ed2e619..9595fad63f6f 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -64,11 +64,10 @@
#define DRA7XX_CPU_TO_BUS_ADDR 0x0FFFFFFF
struct dra7xx_pcie {
- void __iomem *base;
- struct phy **phy;
- int phy_count;
- struct device *dev;
struct pcie_port pp;
+ void __iomem *base; /* DT ti_conf */
+ int phy_count; /* DT phy-names count */
+ struct phy **phy;
};
#define to_dra7xx_pcie(x) container_of((x), struct dra7xx_pcie, pp)
@@ -84,17 +83,6 @@ static inline void dra7xx_pcie_writel(struct dra7xx_pcie *pcie, u32 offset,
writel(value, pcie->base + offset);
}
-static inline u32 dra7xx_pcie_readl_rc(struct pcie_port *pp, u32 offset)
-{
- return readl(pp->dbi_base + offset);
-}
-
-static inline void dra7xx_pcie_writel_rc(struct pcie_port *pp, u32 offset,
- u32 value)
-{
- writel(value, pp->dbi_base + offset);
-}
-
static int dra7xx_pcie_link_up(struct pcie_port *pp)
{
struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
@@ -103,13 +91,14 @@ static int dra7xx_pcie_link_up(struct pcie_port *pp)
return !!(reg & LINK_UP);
}
-static int dra7xx_pcie_establish_link(struct pcie_port *pp)
+static int dra7xx_pcie_establish_link(struct dra7xx_pcie *dra7xx)
{
- struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
+ struct pcie_port *pp = &dra7xx->pp;
+ struct device *dev = pp->dev;
u32 reg;
if (dw_pcie_link_up(pp)) {
- dev_err(pp->dev, "link is already up\n");
+ dev_err(dev, "link is already up\n");
return 0;
}
@@ -120,10 +109,8 @@ static int dra7xx_pcie_establish_link(struct pcie_port *pp)
return dw_pcie_wait_for_link(pp);
}
-static void dra7xx_pcie_enable_interrupts(struct pcie_port *pp)
+static void dra7xx_pcie_enable_interrupts(struct dra7xx_pcie *dra7xx)
{
- struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
-
dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN,
~INTERRUPTS);
dra7xx_pcie_writel(dra7xx,
@@ -142,6 +129,8 @@ static void dra7xx_pcie_enable_interrupts(struct pcie_port *pp)
static void dra7xx_pcie_host_init(struct pcie_port *pp)
{
+ struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
+
pp->io_base &= DRA7XX_CPU_TO_BUS_ADDR;
pp->mem_base &= DRA7XX_CPU_TO_BUS_ADDR;
pp->cfg0_base &= DRA7XX_CPU_TO_BUS_ADDR;
@@ -149,10 +138,10 @@ static void dra7xx_pcie_host_init(struct pcie_port *pp)
dw_pcie_setup_rc(pp);
- dra7xx_pcie_establish_link(pp);
+ dra7xx_pcie_establish_link(dra7xx);
if (IS_ENABLED(CONFIG_PCI_MSI))
dw_pcie_msi_init(pp);
- dra7xx_pcie_enable_interrupts(pp);
+ dra7xx_pcie_enable_interrupts(dra7xx);
}
static struct pcie_host_ops dra7xx_pcie_host_ops = {
@@ -196,8 +185,8 @@ static int dra7xx_pcie_init_irq_domain(struct pcie_port *pp)
static irqreturn_t dra7xx_pcie_msi_irq_handler(int irq, void *arg)
{
- struct pcie_port *pp = arg;
- struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
+ struct dra7xx_pcie *dra7xx = arg;
+ struct pcie_port *pp = &dra7xx->pp;
u32 reg;
reg = dra7xx_pcie_readl(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI);
@@ -223,51 +212,51 @@ static irqreturn_t dra7xx_pcie_msi_irq_handler(int irq, void *arg)
static irqreturn_t dra7xx_pcie_irq_handler(int irq, void *arg)
{
struct dra7xx_pcie *dra7xx = arg;
+ struct device *dev = dra7xx->pp.dev;
u32 reg;
reg = dra7xx_pcie_readl(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN);
if (reg & ERR_SYS)
- dev_dbg(dra7xx->dev, "System Error\n");
+ dev_dbg(dev, "System Error\n");
if (reg & ERR_FATAL)
- dev_dbg(dra7xx->dev, "Fatal Error\n");
+ dev_dbg(dev, "Fatal Error\n");
if (reg & ERR_NONFATAL)
- dev_dbg(dra7xx->dev, "Non Fatal Error\n");
+ dev_dbg(dev, "Non Fatal Error\n");
if (reg & ERR_COR)
- dev_dbg(dra7xx->dev, "Correctable Error\n");
+ dev_dbg(dev, "Correctable Error\n");
if (reg & ERR_AXI)
- dev_dbg(dra7xx->dev, "AXI tag lookup fatal Error\n");
+ dev_dbg(dev, "AXI tag lookup fatal Error\n");
if (reg & ERR_ECRC)
- dev_dbg(dra7xx->dev, "ECRC Error\n");
+ dev_dbg(dev, "ECRC Error\n");
if (reg & PME_TURN_OFF)
- dev_dbg(dra7xx->dev,
+ dev_dbg(dev,
"Power Management Event Turn-Off message received\n");
if (reg & PME_TO_ACK)
- dev_dbg(dra7xx->dev,
+ dev_dbg(dev,
"Power Management Turn-Off Ack message received\n");
if (reg & PM_PME)
- dev_dbg(dra7xx->dev,
- "PM Power Management Event message received\n");
+ dev_dbg(dev, "PM Power Management Event message received\n");
if (reg & LINK_REQ_RST)
- dev_dbg(dra7xx->dev, "Link Request Reset\n");
+ dev_dbg(dev, "Link Request Reset\n");
if (reg & LINK_UP_EVT)
- dev_dbg(dra7xx->dev, "Link-up state change\n");
+ dev_dbg(dev, "Link-up state change\n");
if (reg & CFG_BME_EVT)
- dev_dbg(dra7xx->dev, "CFG 'Bus Master Enable' change\n");
+ dev_dbg(dev, "CFG 'Bus Master Enable' change\n");
if (reg & CFG_MSE_EVT)
- dev_dbg(dra7xx->dev, "CFG 'Memory Space Enable' change\n");
+ dev_dbg(dev, "CFG 'Memory Space Enable' change\n");
dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN, reg);
@@ -278,13 +267,9 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
struct platform_device *pdev)
{
int ret;
- struct pcie_port *pp;
+ struct pcie_port *pp = &dra7xx->pp;
+ struct device *dev = pp->dev;
struct resource *res;
- struct device *dev = &pdev->dev;
-
- pp = &dra7xx->pp;
- pp->dev = dev;
- pp->ops = &dra7xx_pcie_host_ops;
pp->irq = platform_get_irq(pdev, 1);
if (pp->irq < 0) {
@@ -292,12 +277,11 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
return -EINVAL;
}
- ret = devm_request_irq(&pdev->dev, pp->irq,
- dra7xx_pcie_msi_irq_handler,
+ ret = devm_request_irq(dev, pp->irq, dra7xx_pcie_msi_irq_handler,
IRQF_SHARED | IRQF_NO_THREAD,
- "dra7-pcie-msi", pp);
+ "dra7-pcie-msi", dra7xx);
if (ret) {
- dev_err(&pdev->dev, "failed to request irq\n");
+ dev_err(dev, "failed to request irq\n");
return ret;
}
@@ -314,7 +298,7 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
ret = dw_pcie_host_init(pp);
if (ret) {
- dev_err(dra7xx->dev, "failed to initialize host\n");
+ dev_err(dev, "failed to initialize host\n");
return ret;
}
@@ -332,6 +316,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
void __iomem *base;
struct resource *res;
struct dra7xx_pcie *dra7xx;
+ struct pcie_port *pp;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
char name[10];
@@ -343,6 +328,10 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
if (!dra7xx)
return -ENOMEM;
+ pp = &dra7xx->pp;
+ pp->dev = dev;
+ pp->ops = &dra7xx_pcie_host_ops;
+
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(dev, "missing IRQ resource\n");
@@ -390,7 +379,6 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
dra7xx->base = base;
dra7xx->phy = phy;
- dra7xx->dev = dev;
dra7xx->phy_count = phy_count;
pm_runtime_enable(dev);
@@ -407,7 +395,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
ret = devm_gpio_request_one(dev, gpio_sel, gpio_flags,
"pcie_reset");
if (ret) {
- dev_err(&pdev->dev, "gpio%d request failed, ret %d\n",
+ dev_err(dev, "gpio%d request failed, ret %d\n",
gpio_sel, ret);
goto err_gpio;
}
@@ -420,12 +408,11 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
reg &= ~LTSSM_EN;
dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_DEVICE_CMD, reg);
- platform_set_drvdata(pdev, dra7xx);
-
ret = dra7xx_add_pcie_port(dra7xx, pdev);
if (ret < 0)
goto err_gpio;
+ platform_set_drvdata(pdev, dra7xx);
return 0;
err_gpio:
@@ -451,9 +438,9 @@ static int dra7xx_pcie_suspend(struct device *dev)
u32 val;
/* clear MSE */
- val = dra7xx_pcie_readl_rc(pp, PCI_COMMAND);
+ val = dw_pcie_readl_rc(pp, PCI_COMMAND);
val &= ~PCI_COMMAND_MEMORY;
- dra7xx_pcie_writel_rc(pp, PCI_COMMAND, val);
+ dw_pcie_writel_rc(pp, PCI_COMMAND, val);
return 0;
}
@@ -465,9 +452,9 @@ static int dra7xx_pcie_resume(struct device *dev)
u32 val;
/* set MSE */
- val = dra7xx_pcie_readl_rc(pp, PCI_COMMAND);
+ val = dw_pcie_readl_rc(pp, PCI_COMMAND);
val |= PCI_COMMAND_MEMORY;
- dra7xx_pcie_writel_rc(pp, PCI_COMMAND, val);
+ dw_pcie_writel_rc(pp, PCI_COMMAND, val);
return 0;
}
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index 2e2d7f00b9e8..f1c544bb8b68 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -29,13 +29,13 @@
#define to_exynos_pcie(x) container_of(x, struct exynos_pcie, pp)
struct exynos_pcie {
- void __iomem *elbi_base;
- void __iomem *phy_base;
- void __iomem *block_base;
+ struct pcie_port pp;
+ void __iomem *elbi_base; /* DT 0th resource */
+ void __iomem *phy_base; /* DT 1st resource */
+ void __iomem *block_base; /* DT 2nd resource */
int reset_gpio;
struct clk *clk;
struct clk *bus_clk;
- struct pcie_port pp;
};
/* PCIe ELBI registers */
@@ -102,40 +102,40 @@ struct exynos_pcie {
#define PCIE_PHY_TRSV3_PD_TSV (0x1 << 7)
#define PCIE_PHY_TRSV3_LVCC 0x31c
-static inline void exynos_elb_writel(struct exynos_pcie *pcie, u32 val, u32 reg)
+static void exynos_elb_writel(struct exynos_pcie *exynos_pcie, u32 val, u32 reg)
{
- writel(val, pcie->elbi_base + reg);
+ writel(val, exynos_pcie->elbi_base + reg);
}
-static inline u32 exynos_elb_readl(struct exynos_pcie *pcie, u32 reg)
+static u32 exynos_elb_readl(struct exynos_pcie *exynos_pcie, u32 reg)
{
- return readl(pcie->elbi_base + reg);
+ return readl(exynos_pcie->elbi_base + reg);
}
-static inline void exynos_phy_writel(struct exynos_pcie *pcie, u32 val, u32 reg)
+static void exynos_phy_writel(struct exynos_pcie *exynos_pcie, u32 val, u32 reg)
{
- writel(val, pcie->phy_base + reg);
+ writel(val, exynos_pcie->phy_base + reg);
}
-static inline u32 exynos_phy_readl(struct exynos_pcie *pcie, u32 reg)
+static u32 exynos_phy_readl(struct exynos_pcie *exynos_pcie, u32 reg)
{
- return readl(pcie->phy_base + reg);
+ return readl(exynos_pcie->phy_base + reg);
}
-static inline void exynos_blk_writel(struct exynos_pcie *pcie, u32 val, u32 reg)
+static void exynos_blk_writel(struct exynos_pcie *exynos_pcie, u32 val, u32 reg)
{
- writel(val, pcie->block_base + reg);
+ writel(val, exynos_pcie->block_base + reg);
}
-static inline u32 exynos_blk_readl(struct exynos_pcie *pcie, u32 reg)
+static u32 exynos_blk_readl(struct exynos_pcie *exynos_pcie, u32 reg)
{
- return readl(pcie->block_base + reg);
+ return readl(exynos_pcie->block_base + reg);
}
-static void exynos_pcie_sideband_dbi_w_mode(struct pcie_port *pp, bool on)
+static void exynos_pcie_sideband_dbi_w_mode(struct exynos_pcie *exynos_pcie,
+ bool on)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
if (on) {
val = exynos_elb_readl(exynos_pcie, PCIE_ELBI_SLV_AWMISC);
@@ -148,10 +148,10 @@ static void exynos_pcie_sideband_dbi_w_mode(struct pcie_port *pp, bool on)
}
}
-static void exynos_pcie_sideband_dbi_r_mode(struct pcie_port *pp, bool on)
+static void exynos_pcie_sideband_dbi_r_mode(struct exynos_pcie *exynos_pcie,
+ bool on)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
if (on) {
val = exynos_elb_readl(exynos_pcie, PCIE_ELBI_SLV_ARMISC);
@@ -164,10 +164,9 @@ static void exynos_pcie_sideband_dbi_r_mode(struct pcie_port *pp, bool on)
}
}
-static void exynos_pcie_assert_core_reset(struct pcie_port *pp)
+static void exynos_pcie_assert_core_reset(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
val = exynos_elb_readl(exynos_pcie, PCIE_CORE_RESET);
val &= ~PCIE_CORE_RESET_ENABLE;
@@ -177,10 +176,9 @@ static void exynos_pcie_assert_core_reset(struct pcie_port *pp)
exynos_elb_writel(exynos_pcie, 0, PCIE_NONSTICKY_RESET);
}
-static void exynos_pcie_deassert_core_reset(struct pcie_port *pp)
+static void exynos_pcie_deassert_core_reset(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
val = exynos_elb_readl(exynos_pcie, PCIE_CORE_RESET);
val |= PCIE_CORE_RESET_ENABLE;
@@ -193,18 +191,14 @@ static void exynos_pcie_deassert_core_reset(struct pcie_port *pp)
exynos_blk_writel(exynos_pcie, 1, PCIE_PHY_MAC_RESET);
}
-static void exynos_pcie_assert_phy_reset(struct pcie_port *pp)
+static void exynos_pcie_assert_phy_reset(struct exynos_pcie *exynos_pcie)
{
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
-
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_MAC_RESET);
exynos_blk_writel(exynos_pcie, 1, PCIE_PHY_GLOBAL_RESET);
}
-static void exynos_pcie_deassert_phy_reset(struct pcie_port *pp)
+static void exynos_pcie_deassert_phy_reset(struct exynos_pcie *exynos_pcie)
{
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
-
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_GLOBAL_RESET);
exynos_elb_writel(exynos_pcie, 1, PCIE_PWR_RESET);
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_COMMON_RESET);
@@ -213,10 +207,9 @@ static void exynos_pcie_deassert_phy_reset(struct pcie_port *pp)
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_TRSV_RESET);
}
-static void exynos_pcie_power_on_phy(struct pcie_port *pp)
+static void exynos_pcie_power_on_phy(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
val &= ~PCIE_PHY_COMMON_PD_CMN;
@@ -239,10 +232,9 @@ static void exynos_pcie_power_on_phy(struct pcie_port *pp)
exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
}
-static void exynos_pcie_power_off_phy(struct pcie_port *pp)
+static void exynos_pcie_power_off_phy(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
val |= PCIE_PHY_COMMON_PD_CMN;
@@ -265,10 +257,8 @@ static void exynos_pcie_power_off_phy(struct pcie_port *pp)
exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
}
-static void exynos_pcie_init_phy(struct pcie_port *pp)
+static void exynos_pcie_init_phy(struct exynos_pcie *exynos_pcie)
{
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
-
/* DCC feedback control off */
exynos_phy_writel(exynos_pcie, 0x29, PCIE_PHY_DCC_FEEDBACK);
@@ -305,51 +295,41 @@ static void exynos_pcie_init_phy(struct pcie_port *pp)
exynos_phy_writel(exynos_pcie, 0xa0, PCIE_PHY_TRSV3_LVCC);
}
-static void exynos_pcie_assert_reset(struct pcie_port *pp)
+static void exynos_pcie_assert_reset(struct exynos_pcie *exynos_pcie)
{
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+ struct pcie_port *pp = &exynos_pcie->pp;
+ struct device *dev = pp->dev;
if (exynos_pcie->reset_gpio >= 0)
- devm_gpio_request_one(pp->dev, exynos_pcie->reset_gpio,
+ devm_gpio_request_one(dev, exynos_pcie->reset_gpio,
GPIOF_OUT_INIT_HIGH, "RESET");
}
-static int exynos_pcie_establish_link(struct pcie_port *pp)
+static int exynos_pcie_establish_link(struct exynos_pcie *exynos_pcie)
{
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+ struct pcie_port *pp = &exynos_pcie->pp;
+ struct device *dev = pp->dev;
u32 val;
if (dw_pcie_link_up(pp)) {
- dev_err(pp->dev, "Link already up\n");
+ dev_err(dev, "Link already up\n");
return 0;
}
- /* assert reset signals */
- exynos_pcie_assert_core_reset(pp);
- exynos_pcie_assert_phy_reset(pp);
-
- /* de-assert phy reset */
- exynos_pcie_deassert_phy_reset(pp);
-
- /* power on phy */
- exynos_pcie_power_on_phy(pp);
-
- /* initialize phy */
- exynos_pcie_init_phy(pp);
+ exynos_pcie_assert_core_reset(exynos_pcie);
+ exynos_pcie_assert_phy_reset(exynos_pcie);
+ exynos_pcie_deassert_phy_reset(exynos_pcie);
+ exynos_pcie_power_on_phy(exynos_pcie);
+ exynos_pcie_init_phy(exynos_pcie);
/* pulse for common reset */
exynos_blk_writel(exynos_pcie, 1, PCIE_PHY_COMMON_RESET);
udelay(500);
exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_COMMON_RESET);
- /* de-assert core reset */
- exynos_pcie_deassert_core_reset(pp);
-
- /* setup root complex */
+ exynos_pcie_deassert_core_reset(exynos_pcie);
dw_pcie_setup_rc(pp);
-
- /* assert reset signal */
- exynos_pcie_assert_reset(pp);
+ exynos_pcie_assert_reset(exynos_pcie);
/* assert LTSSM enable */
exynos_elb_writel(exynos_pcie, PCIE_ELBI_LTSSM_ENABLE,
@@ -361,27 +341,23 @@ static int exynos_pcie_establish_link(struct pcie_port *pp)
while (exynos_phy_readl(exynos_pcie, PCIE_PHY_PLL_LOCKED) == 0) {
val = exynos_blk_readl(exynos_pcie, PCIE_PHY_PLL_LOCKED);
- dev_info(pp->dev, "PLL Locked: 0x%x\n", val);
+ dev_info(dev, "PLL Locked: 0x%x\n", val);
}
- /* power off phy */
- exynos_pcie_power_off_phy(pp);
-
+ exynos_pcie_power_off_phy(exynos_pcie);
return -ETIMEDOUT;
}
-static void exynos_pcie_clear_irq_pulse(struct pcie_port *pp)
+static void exynos_pcie_clear_irq_pulse(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
val = exynos_elb_readl(exynos_pcie, PCIE_IRQ_PULSE);
exynos_elb_writel(exynos_pcie, val, PCIE_IRQ_PULSE);
}
-static void exynos_pcie_enable_irq_pulse(struct pcie_port *pp)
+static void exynos_pcie_enable_irq_pulse(struct exynos_pcie *exynos_pcie)
{
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
/* enable INTX interrupt */
val = IRQ_INTA_ASSERT | IRQ_INTB_ASSERT |
@@ -391,23 +367,24 @@ static void exynos_pcie_enable_irq_pulse(struct pcie_port *pp)
static irqreturn_t exynos_pcie_irq_handler(int irq, void *arg)
{
- struct pcie_port *pp = arg;
+ struct exynos_pcie *exynos_pcie = arg;
- exynos_pcie_clear_irq_pulse(pp);
+ exynos_pcie_clear_irq_pulse(exynos_pcie);
return IRQ_HANDLED;
}
static irqreturn_t exynos_pcie_msi_irq_handler(int irq, void *arg)
{
- struct pcie_port *pp = arg;
+ struct exynos_pcie *exynos_pcie = arg;
+ struct pcie_port *pp = &exynos_pcie->pp;
return dw_handle_msi_irq(pp);
}
-static void exynos_pcie_msi_init(struct pcie_port *pp)
+static void exynos_pcie_msi_init(struct exynos_pcie *exynos_pcie)
{
+ struct pcie_port *pp = &exynos_pcie->pp;
u32 val;
- struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
dw_pcie_msi_init(pp);
@@ -417,60 +394,64 @@ static void exynos_pcie_msi_init(struct pcie_port *pp)
exynos_elb_writel(exynos_pcie, val, PCIE_IRQ_EN_LEVEL);
}
-static void exynos_pcie_enable_interrupts(struct pcie_port *pp)
+static void exynos_pcie_enable_interrupts(struct exynos_pcie *exynos_pcie)
{
- exynos_pcie_enable_irq_pulse(pp);
+ exynos_pcie_enable_irq_pulse(exynos_pcie);
if (IS_ENABLED(CONFIG_PCI_MSI))
- exynos_pcie_msi_init(pp);
+ exynos_pcie_msi_init(exynos_pcie);
}
-static inline u32 exynos_pcie_readl_rc(struct pcie_port *pp,
- void __iomem *dbi_base)
+static u32 exynos_pcie_readl_rc(struct pcie_port *pp, u32 reg)
{
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
u32 val;
- exynos_pcie_sideband_dbi_r_mode(pp, true);
- val = readl(dbi_base);
- exynos_pcie_sideband_dbi_r_mode(pp, false);
+ exynos_pcie_sideband_dbi_r_mode(exynos_pcie, true);
+ val = readl(pp->dbi_base + reg);
+ exynos_pcie_sideband_dbi_r_mode(exynos_pcie, false);
return val;
}
-static inline void exynos_pcie_writel_rc(struct pcie_port *pp,
- u32 val, void __iomem *dbi_base)
+static void exynos_pcie_writel_rc(struct pcie_port *pp, u32 reg, u32 val)
{
- exynos_pcie_sideband_dbi_w_mode(pp, true);
- writel(val, dbi_base);
- exynos_pcie_sideband_dbi_w_mode(pp, false);
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+ exynos_pcie_sideband_dbi_w_mode(exynos_pcie, true);
+ writel(val, pp->dbi_base + reg);
+ exynos_pcie_sideband_dbi_w_mode(exynos_pcie, false);
}
static int exynos_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
u32 *val)
{
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
int ret;
- exynos_pcie_sideband_dbi_r_mode(pp, true);
+ exynos_pcie_sideband_dbi_r_mode(exynos_pcie, true);
ret = dw_pcie_cfg_read(pp->dbi_base + where, size, val);
- exynos_pcie_sideband_dbi_r_mode(pp, false);
+ exynos_pcie_sideband_dbi_r_mode(exynos_pcie, false);
return ret;
}
static int exynos_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
u32 val)
{
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
int ret;
- exynos_pcie_sideband_dbi_w_mode(pp, true);
+ exynos_pcie_sideband_dbi_w_mode(exynos_pcie, true);
ret = dw_pcie_cfg_write(pp->dbi_base + where, size, val);
- exynos_pcie_sideband_dbi_w_mode(pp, false);
+ exynos_pcie_sideband_dbi_w_mode(exynos_pcie, false);
return ret;
}
static int exynos_pcie_link_up(struct pcie_port *pp)
{
struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
- u32 val = exynos_elb_readl(exynos_pcie, PCIE_ELBI_RDLH_LINKUP);
+ u32 val;
+ val = exynos_elb_readl(exynos_pcie, PCIE_ELBI_RDLH_LINKUP);
if (val == PCIE_ELBI_LTSSM_ENABLE)
return 1;
@@ -479,8 +460,10 @@ static int exynos_pcie_link_up(struct pcie_port *pp)
static void exynos_pcie_host_init(struct pcie_port *pp)
{
- exynos_pcie_establish_link(pp);
- exynos_pcie_enable_interrupts(pp);
+ struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+ exynos_pcie_establish_link(exynos_pcie);
+ exynos_pcie_enable_interrupts(exynos_pcie);
}
static struct pcie_host_ops exynos_pcie_host_ops = {
@@ -492,36 +475,38 @@ static struct pcie_host_ops exynos_pcie_host_ops = {
.host_init = exynos_pcie_host_init,
};
-static int __init exynos_add_pcie_port(struct pcie_port *pp,
+static int __init exynos_add_pcie_port(struct exynos_pcie *exynos_pcie,
struct platform_device *pdev)