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Merge branch 'pci/host-iproc' into next

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* pci/host-iproc:
  PCI: iproc: Skip check for legacy IRQ on PAXC buses
  PCI: iproc: Fix incorrect MSI address alignment
  PCI: iproc: Add support for the next-gen PAXB controller
  PCI: iproc: Add PAXBv2 binding info
  PCI: iproc: Add inbound DMA mapping support
  PCI: iproc: Add optional dma-ranges
  PCI: iproc: Make outbound mapping code more generic
  PCI: iproc: Remove redundant outbound properties
  PCI: iproc: Add PAXC v2 support
  PCI: iproc: Add PAXCv2 related binding
  PCI: iproc: Fix exception with multi-function devices
  PCI: iproc: Add BCMA type
  PCI: iproc: Do not reset PAXC when initializing the driver
  PCI: iproc: Improve core register population
This commit is contained in:
Bjorn Helgaas
2016-12-12 11:25:08 -06:00
parent 36e649f3bb ffbd796821
commit f887e24e05
6 changed files with 929 additions and 136 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/pci/host/pcie-iproc-bcma.c
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@@ -54,6 +54,7 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
pcie->dev = dev;
pcie->type = IPROC_PCIE_PAXB_BCMA;
pcie->base = bdev->io_addr;
if (!pcie->base) {
dev_err(dev, "no controller registers\n");

1
drivers/pci/host/pcie-iproc-msi.c
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@@ -563,6 +563,7 @@ int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node)
}
switch (pcie->type) {
case IPROC_PCIE_PAXB_BCMA:
case IPROC_PCIE_PAXB:
msi->reg_offsets = iproc_msi_reg_paxb;
msi->nr_eq_region = 1;

28
drivers/pci/host/pcie-iproc-platform.c
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@@ -30,9 +30,15 @@ static const struct of_device_id iproc_pcie_of_match_table[] = {
{
.compatible = "brcm,iproc-pcie",
.data = (int *)IPROC_PCIE_PAXB,
}, {
.compatible = "brcm,iproc-pcie-paxb-v2",
.data = (int *)IPROC_PCIE_PAXB_V2,
}, {
.compatible = "brcm,iproc-pcie-paxc",
.data = (int *)IPROC_PCIE_PAXC,
}, {
.compatible = "brcm,iproc-pcie-paxc-v2",
.data = (int *)IPROC_PCIE_PAXC_V2,
},
{ /* sentinel */ }
};
@@ -84,19 +90,6 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
return ret;
}
pcie->ob.axi_offset = val;
ret = of_property_read_u32(np, "brcm,pcie-ob-window-size",
&val);
if (ret) {
dev_err(dev,
"missing brcm,pcie-ob-window-size property\n");
return ret;
}
pcie->ob.window_size = (resource_size_t)val * SZ_1M;
if (of_property_read_bool(np, "brcm,pcie-ob-oarr-size"))
pcie->ob.set_oarr_size = true;
pcie->need_ob_cfg = true;
}
@@ -115,7 +108,14 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev)
return ret;
}
pcie->map_irq = of_irq_parse_and_map_pci;
/* PAXC doesn't support legacy IRQs, skip mapping */
switch (pcie->type) {
case IPROC_PCIE_PAXC:
case IPROC_PCIE_PAXC_V2:
break;
default:
pcie->map_irq = of_irq_parse_and_map_pci;
}
ret = iproc_pcie_setup(pcie, &res);
if (ret)

947
drivers/pci/host/pcie-iproc.c
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File diff suppressed because it is too large Load Diff

45
drivers/pci/host/pcie-iproc.h
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@@ -24,23 +24,34 @@
* endpoint devices.
*/
enum iproc_pcie_type {
IPROC_PCIE_PAXB = 0,
IPROC_PCIE_PAXB_BCMA = 0,
IPROC_PCIE_PAXB,
IPROC_PCIE_PAXB_V2,
IPROC_PCIE_PAXC,
IPROC_PCIE_PAXC_V2,
};
/**
* iProc PCIe outbound mapping
* @set_oarr_size: indicates the OARR size bit needs to be set
* @axi_offset: offset from the AXI address to the internal address used by
* the iProc PCIe core
* @window_size: outbound window size
* @nr_windows: total number of supported outbound mapping windows
*/
struct iproc_pcie_ob {
bool set_oarr_size;
resource_size_t axi_offset;
resource_size_t window_size;
unsigned int nr_windows;
};
/**
* iProc PCIe inbound mapping
* @nr_regions: total number of supported inbound mapping regions
*/
struct iproc_pcie_ib {
unsigned int nr_regions;
};
struct iproc_pcie_ob_map;
struct iproc_pcie_ib_map;
struct iproc_msi;
/**
@@ -55,14 +66,25 @@ struct iproc_msi;
* @root_bus: pointer to root bus
* @phy: optional PHY device that controls the Serdes
* @map_irq: function callback to map interrupts
* @ep_is_internal: indicates an internal emulated endpoint device is connected
* @has_apb_err_disable: indicates the controller can be configured to prevent
* unsupported request from being forwarded as an APB bus error
*
* @need_ob_cfg: indicates SW needs to configure the outbound mapping window
* @ob: outbound mapping parameters
* @ob: outbound mapping related parameters
* @ob_map: outbound mapping related parameters specific to the controller
*
* @ib: inbound mapping related parameters
* @ib_map: outbound mapping region related parameters
*
* @need_msi_steer: indicates additional configuration of the iProc PCIe
* controller is required to steer MSI writes to external interrupt controller
* @msi: MSI data
*/
struct iproc_pcie {
struct device *dev;
enum iproc_pcie_type type;
const u16 *reg_offsets;
u16 *reg_offsets;
void __iomem *base;
phys_addr_t base_addr;
#ifdef CONFIG_ARM
@@ -71,8 +93,17 @@ struct iproc_pcie {
struct pci_bus *root_bus;
struct phy *phy;
int (*map_irq)(const struct pci_dev *, u8, u8);
bool ep_is_internal;
bool has_apb_err_disable;
bool need_ob_cfg;
struct iproc_pcie_ob ob;
const struct iproc_pcie_ob_map *ob_map;
struct iproc_pcie_ib ib;
const struct iproc_pcie_ib_map *ib_map;
bool need_msi_steer;
struct iproc_msi *msi;
};