diff options
| author | Tudor Ambarus <tudor.ambarus@linaro.org> | 2025-02-07 15:56:44 +0000 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2025-02-16 11:52:49 +0100 |
| commit | 23159ccf60026f9c510bcc422f75b2a74af79f20 (patch) | |
| tree | f9fa694dd50780310949103ae7f33f6bdb8c10e1 | |
| parent | 48e7821b2690428a40d16567b2fd3784591f36b3 (diff) | |
arm64: dts: exynos: gs101: add AP to APM mailbox node
GS101 has 14 mailbox controllers. Add the AP to APM mailbox node.
Mailbox controllers have a shared register that can be used for passing
the mailbox messages. The AP to APM mailbox controller is used just as a
doorbell mechanism. It raises interrupt to the firmware after the mailbox
message has been written to SRAM where the TX/RX rings are defined.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20250207-gs101-acpm-dt-v4-2-230ba8663a2d@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
| -rw-r--r-- | arch/arm64/boot/dts/exynos/google/gs101.dtsi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index ef21358e7bcf..09252c4e6da4 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1452,6 +1452,15 @@ }; }; + ap2apm_mailbox: mailbox@17610000 { + compatible = "google,gs101-mbox"; + reg = <0x17610000 0x1000>; + clocks = <&cmu_apm CLK_GOUT_APM_MAILBOX_APM_AP_PCLK>; + clock-names = "pclk"; + interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH 0>; + #mbox-cells = <0>; + }; + pinctrl_gsactrl: pinctrl@17940000 { compatible = "google,gs101-pinctrl"; reg = <0x17940000 0x00001000>; |