git.openwrt.org Git - openwrt/staging/blocktrron.git/blob

   1 From f1154884295a4bd00d6ebcaf01fa30141145903d Mon Sep 17 00:00:00 2001
   2 From: Jonathan Bell <jonathan@raspberrypi.com>
   3 Date: Wed, 20 Sep 2023 10:04:15 +0100
   4 Subject: [PATCH] dt-bindings: PCI: brcmstb: add optional property -
   5  "brcm,tperst-clk-ms"
   6
   7 This property can be used to delay deassertion of external fundamental
   8 reset, which may be useful for endpoints that require an extended time for
   9 internal setup to complete.
  10
  11 Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
  12 ---
  13  Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml | 8 ++++++++
  14  1 file changed, 8 insertions(+)
  15
  16 --- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
  17 +++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
  18 @@ -77,6 +77,14 @@ properties:
  19        minItems: 1
  20        maxItems: 3
  21
  22 +  brcm,tperst-clk-ms:
  23 +    category: optional
  24 +    type: int
  25 +    description: u32 giving the number of milliseconds to extend
  26 +      the time between internal release of fundamental reset and
  27 +      the deassertion of the external PERST# pin. This has the
  28 +      effect of increasing the Tperst_clk phase of link init.
  29 +
  30  required:
  31    - compatible
  32    - reg