target/linux/ipq806x/patches-5.10/103-ARM-dts-qcom-reduce-pci-IO-size-to-64K.patch

   1 From 84909e85881d67244240c9f40974ce12a51e3886 Mon Sep 17 00:00:00 2001
   2 From: Ansuel Smith <ansuelsmth@gmail.com>
   3 Date: Tue, 11 May 2021 23:09:45 +0200
   4 Subject: [PATCH] ARM: dts: qcom: reduce pci IO size to 64K
   5
   6 The current value is probably a typo and is actually uncommon to find
   7 1MB IO space even on a x86 arch. Also with recent changes to the pci
   8 driver, pci1 and pci2 now fails to function as any connected device
   9 fails any reg read/write. Reduce this to 64K as it should be more than
  10 enough and 3 * 64K of total IO space doesn't exceed the IO_SPACE_LIMIT
  11 hardcoded for the ARM arch.
  12
  13 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
  14 ---
  15  arch/arm/boot/dts/qcom-ipq8064.dtsi | 6 +++---
  16  1 file changed, 3 insertions(+), 3 deletions(-)
  17
  18 --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
  19 +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
  20 @@ -1162,7 +1162,7 @@
  21                         #address-cells = <3>;
  22                         #size-cells = <2>;
  23
  24 -                       ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00100000   /* downstream I/O */
  25 +                       ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00010000   /* downstream I/O */
  26                                   0x82000000 0 0x08000000 0x08000000 0 0x07e00000>; /* non-prefetchable memory */
  27
  28                         interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
  29 @@ -1213,7 +1213,7 @@
  30                         #address-cells = <3>;
  31                         #size-cells = <2>;
  32
  33 -                       ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00100000   /* downstream I/O */
  34 +                       ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00010000   /* downstream I/O */
  35                                   0x82000000 0 0x2e000000 0x2e000000 0 0x03e00000>; /* non-prefetchable memory */
  36
  37                         interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
  38 @@ -1264,7 +1264,7 @@
  39                         #address-cells = <3>;
  40                         #size-cells = <2>;
  41
  42 -                       ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00100000   /* downstream I/O */
  43 +                       ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00010000   /* downstream I/O */
  44                                   0x82000000 0 0x32000000 0x32000000 0 0x03e00000>; /* non-prefetchable memory */
  45
  46                         interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;