From 562f1311b529d81662ed41786b8d240db2e2ff51 Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Tue, 6 Dec 2016 15:30:39 +0800 Subject: [PATCH 237/238] pcie/ls208x: use unified compatible "fsl,ls2080a-pcie" for ls208x To avoid unnecessary reduplication, let's use unified compatible "fsl,ls2080a-pcie" for ls2080a, ls2085a, ls2088a. This patch fixes issue of pcie not working on ls2088a. Signed-off-by: Shengzhou Liu --- arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi | 12 ++++-------- drivers/pci/host/pci-layerscape.c | 13 ++++++++----- 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi index bd69942..07c917b 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls2088a.dtsi @@ -513,8 +513,7 @@ }; pcie1: pcie@3400000 { - compatible = "fsl,ls2088a-pcie", "fsl,ls2080a-pcie", - "fsl,ls2085a-pcie", "snps,dw-pcie"; + compatible = "fsl,ls2080a-pcie", "snps,dw-pcie"; reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers */ 0x20 0x00000000 0x0 0x00002000>; /* configuration space */ reg-names = "regs", "config"; @@ -539,8 +538,7 @@ }; pcie2: pcie@3500000 { - compatible = "fsl,ls2080a-pcie", "fsl,ls2080a-pcie", - "fsl,ls2085a-pcie", "snps,dw-pcie"; + compatible = "fsl,ls2080a-pcie", "snps,dw-pcie"; reg = <0x00 0x03500000 0x0 0x00100000 /* controller registers */ 0x28 0x00000000 0x0 0x00002000>; /* configuration space */ reg-names = "regs", "config"; @@ -565,8 +563,7 @@ }; pcie3: pcie@3600000 { - compatible = "fsl,ls2088a-pcie", "fsl,ls2080a-pcie", - "fsl,ls2085a-pcie", "snps,dw-pcie"; + compatible = "fsl,ls2080a-pcie", "snps,dw-pcie"; reg = <0x00 0x03600000 0x0 0x00100000 /* controller registers */ 0x30 0x00000000 0x0 0x00002000>; /* configuration space */ reg-names = "regs", "config"; @@ -591,8 +588,7 @@ }; pcie4: pcie@3700000 { - compatible = "fsl,ls2080a-pcie", "fsl,ls2080a-pcie", - "fsl,ls2085a-pcie", "snps,dw-pcie"; + compatible = "fsl,ls2080a-pcie", "snps,dw-pcie"; reg = <0x00 0x03700000 0x0 0x00100000 /* controller registers */ 0x38 0x00000000 0x0 0x00002000>; /* configuration space */ reg-names = "regs", "config"; diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c index 00feabf..3e2100d 100644 --- a/drivers/pci/host/pci-layerscape.c +++ b/drivers/pci/host/pci-layerscape.c @@ -158,9 +158,14 @@ static void ls1021_pcie_host_init(struct pcie_port *pp) static int ls_pcie_link_up(struct pcie_port *pp) { struct ls_pcie *pcie = to_ls_pcie(pp); - u32 state; + u32 state, offset; + + if (of_get_property(pp->dev->of_node, "fsl,lut_diff", NULL)) + offset = 0x407fc; + else + offset = pcie->drvdata->lut_dbg; - state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >> + state = (ioread32(pcie->lut + offset) >> pcie->drvdata->ltssm_shift) & LTSSM_STATE_MASK; @@ -261,7 +266,6 @@ static const struct of_device_id ls_pcie_of_match[] = { { .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata }, { .compatible = "fsl,ls1088a-pcie", .data = &ls1088_drvdata }, { .compatible = "fsl,ls2080a-pcie", .data = &ls2080_drvdata }, - { .compatible = "fsl,ls2085a-pcie", .data = &ls2080_drvdata }, { }, }; MODULE_DEVICE_TABLE(of, ls_pcie_of_match); @@ -315,8 +319,7 @@ static int __init ls_pcie_probe(struct platform_device *pdev) if (!ls_pcie_is_bridge(pcie)) return -ENODEV; - if (of_device_is_compatible(pdev->dev.of_node, "fsl,ls2085a-pcie") || - of_device_is_compatible(pdev->dev.of_node, "fsl,ls2080a-pcie") || + if (of_device_is_compatible(pdev->dev.of_node, "fsl,ls2080a-pcie") || of_device_is_compatible(pdev->dev.of_node, "fsl,ls1088a-pcie")) { int len; const u32 *prop; -- 1.7.9.5