This adds the initial support of Tegra186 SoC, which can help to bring
up the debug console and initrd for further developing.

Signed-off-by: Joseph Lo <jose...@nvidia.com>
---
Changes in V2:
- update the file according the HSP and BPMP binding fix in V2
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 77 ++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 arch/arm64/boot/dts/nvidia/tegra186.dtsi

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi 
b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
new file mode 100644
index 000000000000..57badd5de9b4
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -0,0 +1,77 @@
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/mailbox/tegra186-hsp.h>
+
+/ {
+       compatible = "nvidia,tegra186";
+       interrupt-parent = <&gic>;
+       #address-cells = <2>;
+       #size-cells = <2>;
+
+       uarta: serial@03100000 {
+               compatible = "nvidia,tegra186-uart", "nvidia,tegra20-uart";
+               reg = <0x0 0x03100000 0x0 0x40>;
+               reg-shift = <2>;
+               interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+               status = "disabled";
+       };
+
+       gic: interrupt-controller@03881000 {
+               compatible = "arm,gic-400";
+               #interrupt-cells = <3>;
+               interrupt-controller;
+               reg = <0x0 0x03881000 0x0 0x1000>,
+                     <0x0 0x03882000 0x0 0x2000>;
+               interrupts = <GIC_PPI 9
+                       (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+               interrupt-parent = <&gic>;
+       };
+
+       hsp_top0: hsp@03c00000 {
+               compatible = "nvidia,tegra186-hsp";
+               reg = <0x0 0x03c00000 0x0 0xa0000>;
+               interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+               interrupt-names = "doorbell";
+               #mbox-cells = <1>;
+               status = "disabled";
+       };
+
+       sysram@30000000 {
+               compatible = "nvidia,tegra186-sysram", "mmio-ram";
+               reg = <0x0 0x30000000 0x0 0x4ffff>;
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges = <0 0x0 0x0 0x30000000 0x0 0x4ffff>;
+
+               cpu_bpmp_tx: bpmp_shmem@4e000 {
+                       compatible = "nvidia,tegra186-bpmp-shmem";
+                       reg = <0x0 0x4e000 0x0 0x1000>;
+               };
+
+               cpu_bpmp_rx: bpmp_shmem@4f000 {
+                       compatible = "nvidia,tegra186-bpmp-shmem";
+                       reg = <0x0 0x4f000 0x0 0x1000>;
+               };
+       };
+
+       bpmp {
+               compatible = "nvidia,tegra186-bpmp";
+               mboxes = <&hsp_top0 HSP_MBOX_ID(DB, HSP_DB_MASTER_BPMP)>;
+               shmem = <&cpu_bpmp_tx &cpu_bpmp_rx>;
+               #clock-cells = <1>;
+               #reset-cells = <1>;
+               status = "disabled";
+       };
+
+       timer {
+               compatible = "arm,armv8-timer";
+               interrupts = <GIC_PPI 13
+                               (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 14
+                               (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 11
+                               (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 10
+                               (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+               interrupt-parent = <&gic>;
+       };
+};
-- 
2.9.0

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