diff options
| author | Vidya Sagar <vidyas@nvidia.com> | 2019-09-05 16:15:52 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-09-20 14:24:34 -0500 |
| commit | dbb72e2c305b269652eb97fb3544fcb474096a2a (patch) | |
| tree | 0ae15e1295481c0f8e74e1e7093f0865d96da87c /arch | |
| parent | 0a901f2130802fdcabcd6f1cfabf4f62fa0d3cde (diff) | |
arm64: tegra: Add configuration for PCIe C5 sideband signals
Add support to configure PCIe C5's sideband signals PERST# and CLKREQ#
as output and bi-directional signals respectively which unlike other
PCIe controllers sideband signals are not configured by default.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra194.dtsi | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi index adebbbf36bd0..3c0cf54f0aab 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi @@ -3,8 +3,9 @@ #include <dt-bindings/gpio/tegra194-gpio.h> #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/mailbox/tegra186-hsp.h> -#include <dt-bindings/reset/tegra194-reset.h> +#include <dt-bindings/pinctrl/pinctrl-tegra.h> #include <dt-bindings/power/tegra194-powergate.h> +#include <dt-bindings/reset/tegra194-reset.h> #include <dt-bindings/thermal/tegra194-bpmp-thermal.h> / { @@ -130,6 +131,38 @@ }; }; + pinmux: pinmux@2430000 { + compatible = "nvidia,tegra194-pinmux"; + reg = <0x2430000 0x17000 + 0xc300000 0x4000>; + + status = "okay"; + + pex_rst_c5_out_state: pex_rst_c5_out { + pex_rst { + nvidia,pins = "pex_l5_rst_n_pgg1"; + nvidia,schmitt = <TEGRA_PIN_DISABLE>; + nvidia,lpdr = <TEGRA_PIN_ENABLE>; + nvidia,enable-input = <TEGRA_PIN_DISABLE>; + nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + }; + }; + + clkreq_c5_bi_dir_state: clkreq_c5_bi_dir { + clkreq { + nvidia,pins = "pex_l5_clkreq_n_pgg0"; + nvidia,schmitt = <TEGRA_PIN_DISABLE>; + nvidia,lpdr = <TEGRA_PIN_ENABLE>; + nvidia,enable-input = <TEGRA_PIN_ENABLE>; + nvidia,io-high-voltage = <TEGRA_PIN_ENABLE>; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + nvidia,pull = <TEGRA_PIN_PULL_NONE>; + }; + }; + }; + uarta: serial@3100000 { compatible = "nvidia,tegra194-uart", "nvidia,tegra20-uart"; reg = <0x03100000 0x40>; @@ -1365,6 +1398,9 @@ num-viewport = <8>; linux,pci-domain = <5>; + pinctrl-names = "default"; + pinctrl-0 = <&pex_rst_c5_out_state>, <&clkreq_c5_bi_dir_state>; + clocks = <&bpmp TEGRA194_CLK_PEX1_CORE_5>, <&bpmp TEGRA194_CLK_PEX1_CORE_5M>; clock-names = "core", "core_m"; |