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//0x0FFFFFFF } PCI parent bus trim high 4 bits address to 0. Correct ranges in target-module@51000000 to algin hardware behavior, which translate PCIe outbound address 0..0x0fff_ffff to 0x2000_0000..0x2fff_ffff. Set 'config' and 'addr_space' reg values to 0. Change parent bus address of downstream I/O and non-prefetchable memory to 0. Ensure no functional impact on the final address translation result. Prepare for the removal of the driver=E2=80=99s cpu_addr_fixup(). Signed-off-by: Frank Li --- arch/arm/boot/dts/ti/omap/dra7.dtsi | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/ti/omap/dra7.dtsi b/arch/arm/boot/dts/ti/oma= p/dra7.dtsi index b709703f6c0d4..9213fdd25330b 100644 --- a/arch/arm/boot/dts/ti/omap/dra7.dtsi +++ b/arch/arm/boot/dts/ti/omap/dra7.dtsi @@ -196,7 +196,7 @@ axi0: target-module@51000000 { #size-cells =3D <1>; #address-cells =3D <1>; ranges =3D <0x51000000 0x51000000 0x3000>, - <0x20000000 0x20000000 0x10000000>; + <0x00000000 0x20000000 0x10000000>; dma-ranges; /** * To enable PCI endpoint mode, disable the pcie1_rc @@ -205,14 +205,14 @@ axi0: target-module@51000000 { pcie1_rc: pcie@51000000 { reg =3D <0x51000000 0x2000>, <0x51002000 0x14c>, - <0x20001000 0x2000>; + <0x00001000 0x2000>; reg-names =3D "rc_dbics", "ti_conf", "config"; interrupts =3D <0 232 0x4>, <0 233 0x4>; #address-cells =3D <3>; #size-cells =3D <2>; device_type =3D "pci"; - ranges =3D <0x81000000 0 0x00000000 0x20003000 0 0x00010000>, - <0x82000000 0 0x20013000 0x20013000 0 0x0ffed000>; + ranges =3D <0x81000000 0 0x00000000 0x00003000 0 0x00010000>, + <0x82000000 0 0x20013000 0x00013000 0 0x0ffed000>; bus-range =3D <0x00 0xff>; #interrupt-cells =3D <1>; num-lanes =3D <1>; @@ -238,7 +238,7 @@ pcie1_ep: pcie_ep@51000000 { reg =3D <0x51000000 0x28>, <0x51002000 0x14c>, <0x51001000 0x28>, - <0x20001000 0x10000000>; + <0x00001000 0x10000000>; reg-names =3D "ep_dbics", "ti_conf", "ep_dbics2", "addr_space"; interrupts =3D <0 232 0x4>; num-lanes =3D <1>; @@ -270,20 +270,20 @@ axi1: target-module@51800000 { #size-cells =3D <1>; #address-cells =3D <1>; ranges =3D <0x51800000 0x51800000 0x3000>, - <0x30000000 0x30000000 0x10000000>; + <0x00000000 0x30000000 0x10000000>; dma-ranges; status =3D "disabled"; pcie2_rc: pcie@51800000 { reg =3D <0x51800000 0x2000>, <0x51802000 0x14c>, - <0x30001000 0x2000>; + <0x00001000 0x2000>; reg-names =3D "rc_dbics", "ti_conf", "config"; interrupts =3D <0 355 0x4>, <0 356 0x4>; #address-cells =3D <3>; #size-cells =3D <2>; device_type =3D "pci"; - ranges =3D <0x81000000 0 0x00000000 0x30003000 0 0x00010000>, - <0x82000000 0 0x30013000 0x30013000 0 0x0ffed000>; 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Set use_parent_dt_ranges to allow the DWC core driver = to fetch address translation from the device tree Signed-off-by: Frank Li --- drivers/pci/controller/dwc/pci-dra7xx.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controll= er/dwc/pci-dra7xx.c index 33d6bf460ffe5..d6e0bf67a07b3 100644 --- a/drivers/pci/controller/dwc/pci-dra7xx.c +++ b/drivers/pci/controller/dwc/pci-dra7xx.c @@ -72,7 +72,6 @@ =20 #define PCIECTRL_DRA7XX_CONF_PHY_CS 0x010C #define LINK_UP BIT(16) -#define DRA7XX_CPU_TO_BUS_ADDR 0x0FFFFFFF =20 #define PCIECTRL_TI_CONF_INTX_ASSERT 0x0124 #define PCIECTRL_TI_CONF_INTX_DEASSERT 0x0128 @@ -113,11 +112,6 @@ static inline void dra7xx_pcie_writel(struct dra7xx_pc= ie *pcie, u32 offset, writel(value, pcie->base + offset); } =20 -static u64 dra7xx_pcie_cpu_addr_fixup(struct dw_pcie *pci, u64 cpu_addr) -{ - return cpu_addr & DRA7XX_CPU_TO_BUS_ADDR; -} - static int dra7xx_pcie_link_up(struct dw_pcie *pci) { struct dra7xx_pcie *dra7xx =3D to_dra7xx_pcie(pci); @@ -514,7 +508,6 @@ static int dra7xx_add_pcie_port(struct dra7xx_pcie *dra= 7xx, } =20 static const struct dw_pcie_ops dw_pcie_ops =3D { - .cpu_addr_fixup =3D dra7xx_pcie_cpu_addr_fixup, .start_link =3D dra7xx_pcie_establish_link, .stop_link =3D dra7xx_pcie_stop_link, .link_up =3D dra7xx_pcie_link_up, @@ -712,6 +705,7 @@ static int dra7xx_pcie_probe(struct platform_device *pd= ev) =20 pci->dev =3D dev; pci->ops =3D &dw_pcie_ops; + pci->use_parent_dt_ranges =3D true; =20 irq =3D platform_get_irq(pdev, 0); if (irq < 0) --=20 2.34.1