target/linux/bcm27xx/patches-5.4/950-0371-ARM-dts-bcm283x-Move-system-timer-back-to-bcm283x.dt.patch

   1 From fcd4bc412167d2a79bf63603e883f4960ca6b2a1 Mon Sep 17 00:00:00 2001
   2 From: Stefan Wahren <wahrenst@gmx.net>
   3 Date: Fri, 27 Dec 2019 11:15:00 +0100
   4 Subject: [PATCH] ARM: dts: bcm283x: Move system timer back to
   5  bcm283x.dtsi
   6
   7 During Raspberry Pi 4 upstream discussion Tim Gover confirmed that the
   8 system timer also exists on BCM2711. So move it back to bcm283x.dtsi and
   9 overwrite the interrupt definition in bcm2838.dtsi.
  10
  11 Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
  12 ---
  13  arch/arm/boot/dts/bcm2835-common.dtsi | 11 -----------
  14  arch/arm/boot/dts/bcm2838.dtsi        |  7 +++++++
  15  arch/arm/boot/dts/bcm283x.dtsi        | 11 +++++++++++
  16  3 files changed, 18 insertions(+), 11 deletions(-)
  17
  18 --- a/arch/arm/boot/dts/bcm2835-common.dtsi
  19 +++ b/arch/arm/boot/dts/bcm2835-common.dtsi
  20 @@ -6,17 +6,6 @@
  21
  22  / {
  23         soc {
  24 -               timer@7e003000 {
  25 -                       compatible = "brcm,bcm2835-system-timer";
  26 -                       reg = <0x7e003000 0x1000>;
  27 -                       interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
  28 -                       /* This could be a reference to BCM2835_CLOCK_TIMER,
  29 -                        * but we don't have the driver using the common clock
  30 -                        * support yet.
  31 -                        */
  32 -                       clock-frequency = <1000000>;
  33 -               };
  34 -
  35                 intc: interrupt-controller@7e00b200 {
  36                         compatible = "brcm,bcm2835-armctrl-ic";
  37                         reg = <0x7e00b200 0x200>;
  38 --- a/arch/arm/boot/dts/bcm2838.dtsi
  39 +++ b/arch/arm/boot/dts/bcm2838.dtsi
  40 @@ -711,6 +711,13 @@
  41         interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
  42  };
  43
  44 +&system_timer {
  45 +       interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>,
  46 +                    <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>,
  47 +                    <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>,
  48 +                    <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
  49 +};
  50 +
  51  &uart0 {
  52         interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
  53  };
  54 --- a/arch/arm/boot/dts/bcm283x.dtsi
  55 +++ b/arch/arm/boot/dts/bcm283x.dtsi
  56 @@ -56,6 +56,17 @@
  57                 #address-cells = <1>;
  58                 #size-cells = <1>;
  59
  60 +               system_timer: timer@7e003000 {
  61 +                       compatible = "brcm,bcm2835-system-timer";
  62 +                       reg = <0x7e003000 0x1000>;
  63 +                       interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
  64 +                       /* This could be a reference to BCM2835_CLOCK_TIMER,
  65 +                        * but we don't have the driver using the common clock
  66 +                        * support yet.
  67 +                        */
  68 +                       clock-frequency = <1000000>;
  69 +               };
  70 +
  71                 txp: txp@7e004000 {
  72                         compatible = "brcm,bcm2835-txp";
  73                         reg = <0x7e004000 0x20>;