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Merge branch 'pci/host-layerscape' into next 

* pci/host-layerscape:
  PCI: layerscape: Change default error response behavior
  PCI: Disable MSI for Freescale Layerscape PCIe RC mode
  arm64: dts: ls1046a: Add PCIe controller DT nodes
  arm64: dts: ls1012a: Add PCIe controller DT node
  PCI: layerscape: Add support for ls1012a
  arm64: dts: ls1012a: Add MSI controller DT node
  irqchip/ls-scfg-msi: Add LS1012a MSI support
This commit is contained in:
Bjorn Helgaas 2017-11-14 12:11:33 -06:00
parent aaea12f7fe 84d897d699
commit 89000e89bf
7 changed files with 129 additions and 0 deletions
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1
Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt
View File

@ -8,6 +8,7 @@ Required properties:
"fsl,ls1043a-msi"
"fsl,ls1046a-msi"
"fsl,ls1043a-v1.1-msi"
"fsl,ls1012a-msi"
- msi-controller: indicates that this is a PCIe MSI controller node
- reg: physical base address of the controller and length of memory mapped.
- interrupts: an interrupt to the parent interrupt controller.

1
Documentation/devicetree/bindings/pci/layerscape-pci.txt
View File

@ -18,6 +18,7 @@ Required properties:
"fsl,ls2088a-pcie"
"fsl,ls1088a-pcie"
"fsl,ls1046a-pcie"
"fsl,ls1012a-pcie"
- reg: base addresses and lengths of the PCIe controller register blocks.
- interrupts: A list of interrupt outputs of the controller. Must contain an
entry for each entry in the interrupt-names property.

31
arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
View File

@ -471,5 +471,36 @@
dr_mode = "host";
phy_type = "ulpi";
};
msi: msi-controller1@1572000 {
compatible = "fsl,ls1012a-msi";
reg = <0x0 0x1572000 0x0 0x8>;
msi-controller;
interrupts = <0 126 IRQ_TYPE_LEVEL_HIGH>;
};
pcie@3400000 {
compatible = "fsl,ls1012a-pcie", "snps,dw-pcie";
reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers */
0x40 0x00000000 0x0 0x00002000>; /* configuration space */
reg-names = "regs", "config";
interrupts = <0 118 0x4>, /* controller interrupt */
<0 117 0x4>; /* PME interrupt */
interrupt-names = "aer", "pme";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
num-lanes = <4>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
msi-parent = <&msi>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic 0 110 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 2 &gic 0 111 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 3 &gic 0 112 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 4 &gic 0 113 IRQ_TYPE_LEVEL_HIGH>;
};
};
};

75
arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
View File

@ -661,6 +661,81 @@
<GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>;
};
pcie@3400000 {
compatible = "fsl,ls1046a-pcie", "snps,dw-pcie";
reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers */
0x40 0x00000000 0x0 0x00002000>; /* configuration space */
reg-names = "regs", "config";
interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
<GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>; /* PME interrupt */
interrupt-names = "aer", "pme";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <4>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
msi-parent = <&msi1>, <&msi2>, <&msi3>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 2 &gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 3 &gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 4 &gic GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
};
pcie@3500000 {
compatible = "fsl,ls1046a-pcie", "snps,dw-pcie";
reg = <0x00 0x03500000 0x0 0x00100000 /* controller registers */
0x48 0x00000000 0x0 0x00002000>; /* configuration space */
reg-names = "regs", "config";
interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
<GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; /* PME interrupt */
interrupt-names = "aer", "pme";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <2>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x48 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
msi-parent = <&msi2>, <&msi3>, <&msi1>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 2 &gic GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 3 &gic GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 4 &gic GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
};
pcie@3600000 {
compatible = "fsl,ls1046a-pcie", "snps,dw-pcie";
reg = <0x00 0x03600000 0x0 0x00100000 /* controller registers */
0x50 0x00000000 0x0 0x00002000>; /* configuration space */
reg-names = "regs", "config";
interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
<GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>; /* PME interrupt */
interrupt-names = "aer", "pme";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
dma-coherent;
num-lanes = <2>;
bus-range = <0x0 0xff>;
ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */
0x82000000 0x0 0x40000000 0x50 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
msi-parent = <&msi3>, <&msi1>, <&msi2>;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0000 0 0 1 &gic GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 2 &gic GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 3 &gic GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
<0000 0 0 4 &gic GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
};
};
reserved-memory {

1
drivers/irqchip/irq-ls-scfg-msi.c
View File

@ -316,6 +316,7 @@ static const struct of_device_id ls_scfg_msi_id[] = {
{ .compatible = "fsl,1s1021a-msi", .data = &ls1021_msi_cfg},
{ .compatible = "fsl,1s1043a-msi", .data = &ls1021_msi_cfg},
{ .compatible = "fsl,ls1012a-msi", .data = &ls1021_msi_cfg },
{ .compatible = "fsl,ls1021a-msi", .data = &ls1021_msi_cfg },
{ .compatible = "fsl,ls1043a-msi", .data = &ls1021_msi_cfg },
{ .compatible = "fsl,ls1043a-v1.1-msi", .data = &ls1043_v1_1_msi_cfg },

12
drivers/pci/dwc/pci-layerscape.c
View File

@ -33,6 +33,8 @@
/* PEX Internal Configuration Registers */
#define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */
#define PCIE_ABSERR 0x8d0 /* Bridge Slave Error Response Register */
#define PCIE_ABSERR_SETTING 0x9401 /* Forward error of non-posted request */
#define PCIE_IATU_NUM 6
@ -124,6 +126,14 @@ static int ls_pcie_link_up(struct dw_pcie *pci)
return 1;
}
/* Forward error response of outbound non-posted requests */
static void ls_pcie_fix_error_response(struct ls_pcie *pcie)
{
struct dw_pcie *pci = pcie->pci;
iowrite32(PCIE_ABSERR_SETTING, pci->dbi_base + PCIE_ABSERR);
}
static int ls_pcie_host_init(struct pcie_port *pp)
{
struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
@ -135,6 +145,7 @@ static int ls_pcie_host_init(struct pcie_port *pp)
* dw_pcie_setup_rc() will reconfigure the outbound windows.
*/
ls_pcie_disable_outbound_atus(pcie);
ls_pcie_fix_error_response(pcie);
dw_pcie_dbi_ro_wr_en(pci);
ls_pcie_clear_multifunction(pcie);
@ -253,6 +264,7 @@ static struct ls_pcie_drvdata ls2088_drvdata = {
};
static const struct of_device_id ls_pcie_of_match[] = {
{ .compatible = "fsl,ls1012a-pcie", .data = &ls1046_drvdata },
{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata },
{ .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata },
{ .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata },

8
drivers/pci/quirks.c
View File

@ -4814,3 +4814,11 @@ static void quirk_no_ats(struct pci_dev *pdev)
/* AMD Stoney platform GPU */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats);
#endif /* CONFIG_PCI_ATS */
/* Freescale PCIe doesn't support MSI in RC mode */
static void quirk_fsl_no_msi(struct pci_dev *pdev)
{
if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT)
pdev->no_msi = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_no_msi);