target/linux/ipq40xx/patches-4.19/083-ARM-dts-qcom-ipq4019-enlarge-PCIe-BAR-range.patch

   1 From: Christian Lamparter <chunkeey@gmail.com>
   2 Date: Mon, 25 Feb 2019 20:14:19 +0100
   3 Subject: [PATCH] ARM: dts: qcom: ipq4019: enlarge PCIe BAR range
   4
   5 David Bauer reported that the VDSL modem (attached via PCIe)
   6 on his AVM Fritz!Box 7530 was complaining about not having
   7 enough space in the BAR. A closer inspection of the old
   8 qcom-ipq40xx.dtsi pulled from the GL-iNet repository listed:
   9
  10 | qcom,pcie@80000 {
  11 |       compatible = "qcom,msm_pcie";
  12 |       reg = <0x80000 0x2000>,
  13 |             <0x99000 0x800>,
  14 |             <0x40000000 0xf1d>,
  15 |             <0x40000f20 0xa8>,
  16 |             <0x40100000 0x1000>,
  17 |             <0x40200000 0x100000>,
  18 |             <0x40300000 0xd00000>;
  19 |       reg-names = "parf", "phy", "dm_core", "elbi",
  20 |                       "conf", "io", "bars";
  21
  22 Matching the reg-names with the listed reg leads to
  23 <0xd00000> as the size for the "bars".
  24
  25 BugLink: https://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg45212.html
  26 Reported-by: David Bauer <mail@david-bauer.net>
  27 Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
  28 ---
  29
  30 --- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
  31 +++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
  32 @@ -405,8 +405,8 @@
  33                         #address-cells = <3>;
  34                         #size-cells = <2>;
  35
  36 -                       ranges = <0x81000000 0 0x40200000 0x40200000 0 0x00100000
  37 -                                 0x82000000 0 0x40300000 0x40300000 0 0x400000>;
  38 +                       ranges = <0x81000000 0 0x40200000 0x40200000 0 0x00100000>,
  39 +                                <0x82000000 0 0x40300000 0x40300000 0 0x00d00000>;
  40
  41                         interrupts = <GIC_SPI 141 IRQ_TYPE_EDGE_RISING>;
  42                         interrupt-names = "msi";