On Tue, Jun 28, 2016 at 03:36:27PM +0900, Yoshinori Sato wrote:
> This is an alternative SH7751 PCI driver.
> Existing driver (arch/sh/drivers/pci/pci-sh7751) uses SH specific interface.
> But this driver uses common PCI interface. It is more modern and generic.
>
> Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/pci/sh7751-pci.txt | 51 ++++
> arch/sh/boards/Kconfig | 1 +
> arch/sh/drivers/Makefile | 2 +
> arch/sh/include/asm/io.h | 6 +
> drivers/pci/host/Kconfig | 7 +
> drivers/pci/host/Makefile | 1 +
> drivers/pci/host/pci-sh7751.c | 326 +++++++++++++++++++++
> 7 files changed, 394 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pci/sh7751-pci.txt
> create mode 100644 drivers/pci/host/pci-sh7751.c
>
> diff --git a/Documentation/devicetree/bindings/pci/sh7751-pci.txt b/Documentation/devicetree/bindings/pci/sh7751-pci.txt
> new file mode 100644
> index 0000000..c3ec71a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/sh7751-pci.txt
> @@ -0,0 +1,51 @@
> +* Renesas SH7751 PCI host interfaces
> +
> +Required properties:
> + - compatible: "renesas,sh7751-pci" is required.
> + And board specific compatible if fixup required.
> +
> + - reg: base address and length of the PCI controller registers.
Need to define how many reg entries and the order.
> + - #address-cells: set to <2>
> + - #size-cells: set to <1>
> + - bus-range: PCI bus numbers covered
> + - device_type: set to "pci"
> + - ranges: ranges for the PCI memory and I/O regions.
> + - interrupt-map-mask and interrupt-map: standard PCI properties
> + to define the mapping of the PCI interface to interrupt
> + numbers.
> +
> +Example:
> + pci: pci-controller@fe200000 {
> + compatible = "renesas,sh7751-pci", "iodata,landisk";
> + device_type = "pci";
> + bus-range = <0 0>;
> + #address-cells = <2>;
> + #size-cells = <1>;
> + ranges = <0x02000000 0x00000000 0xfd000000 0xfd000000 0x00000000 0x01000000>,
> + <0x01000000 0x00000000 0xfe240000 0x00000000 0x00000000 0x00040000>;
> + reg = <0xfe200000 0x0400>,
> + <0x0c000000 0x04000000>,
> + <0xff800000 0x0030>;
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0x1800 0 7>;
> + interrupt-map = <0x0000 0 1 &cpldintc evt2irq(0x2a0) 0
> + 0x0000 0 2 &cpldintc evt2irq(0x2c0) 0
> + 0x0000 0 3 &cpldintc evt2irq(0x2e0) 0
> + 0x0000 0 4 &cpldintc evt2irq(0x300) 0
> +
> + 0x0800 0 1 &cpldintc evt2irq(0x2c0) 0
> + 0x0800 0 2 &cpldintc evt2irq(0x2e0) 0
> + 0x0800 0 3 &cpldintc evt2irq(0x300) 0
> + 0x0800 0 4 &cpldintc evt2irq(0x2a0) 0
> +
> + 0x1000 0 1 &cpldintc evt2irq(0x2e0) 0
> + 0x1000 0 2 &cpldintc evt2irq(0x300) 0
> + 0x1000 0 3 &cpldintc evt2irq(0x2a0) 0
> + 0x1000 0 4 &cpldintc evt2irq(0x2c0) 0
> +
> + 0x1800 0 1 &cpldintc evt2irq(0x300) 0
> + 0x1800 0 2 &cpldintc evt2irq(0x2a0) 0
> + 0x1800 0 3 &cpldintc evt2irq(0x2c0) 0
> + 0x1800 0 4 &cpldintc evt2irq(0x2e0) 0>;
> + };
> +};
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