target/linux/ipq806x/patches-5.15/104-v6.0-06-ARM-dts-qcom-ipq8064-reduce-pci-IO-size-to-64K.patch

   1 From 8fafb7e5c041814876266259e5e439f93571dcef Mon Sep 17 00:00:00 2001
   2 From: Christian Marangi <ansuelsmth@gmail.com>
   3 Date: Thu, 7 Jul 2022 03:09:40 +0200
   4 Subject: [PATCH 6/8] ARM: dts: qcom: ipq8064: reduce pci IO size to 64K
   5
   6 The current value for pci IO is problematic for ath10k wifi card
   7 commonly connected to ipq8064 SoC.
   8 The current value is probably a typo and is actually uncommon to find
   9 1MB IO space even on a x86 arch. Also with recent changes to the pci
  10 driver, pci1 and pci2 now fails to function as any connected device
  11 fails any reg read/write. Reduce this to 64K as it should be more than
  12 enough and 3 * 64K of total IO space doesn't exceed the IO_SPACE_LIMIT
  13 hardcoded for the ARM arch.
  14
  15 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
  16 Tested-by: Jonathan McDowell <noodles@earth.li>
  17 Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
  18 Link: https://lore.kernel.org/r/20220707010943.20857-7-ansuelsmth@gmail.com
  19 ---
  20  arch/arm/boot/dts/qcom-ipq8064.dtsi | 6 +++---
  21  1 file changed, 3 insertions(+), 3 deletions(-)
  22
  23 --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
  24 +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
  25 @@ -885,7 +885,7 @@
  26                         #address-cells = <3>;
  27                         #size-cells = <2>;
  28
  29 -                       ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00100000   /* downstream I/O */
  30 +                       ranges = <0x81000000 0 0x0fe00000 0x0fe00000 0 0x00010000   /* downstream I/O */
  31                                   0x82000000 0 0x08000000 0x08000000 0 0x07e00000>; /* non-prefetchable memory */
  32
  33                         interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
  34 @@ -936,7 +936,7 @@
  35                         #address-cells = <3>;
  36                         #size-cells = <2>;
  37
  38 -                       ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00100000   /* downstream I/O */
  39 +                       ranges = <0x81000000 0 0x31e00000 0x31e00000 0 0x00010000   /* downstream I/O */
  40                                   0x82000000 0 0x2e000000 0x2e000000 0 0x03e00000>; /* non-prefetchable memory */
  41
  42                         interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
  43 @@ -987,7 +987,7 @@
  44                         #address-cells = <3>;
  45                         #size-cells = <2>;
  46
  47 -                       ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00100000   /* downstream I/O */
  48 +                       ranges = <0x81000000 0 0x35e00000 0x35e00000 0 0x00010000   /* downstream I/O */
  49                                   0x82000000 0 0x32000000 0x32000000 0 0x03e00000>; /* non-prefetchable memory */
  50
  51                         interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;