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mailbox: add Tegra186 HSP driver

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Tegra186's HSP module implements doorbells, mailboxes, semaphores, and
shared interrupts. This patch provides a driver for HSP, and hooks it
into the mailbox API. Currently, only doorbells are supported.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren
2016-06-17 09:43:57 -06:00
committed by Simon Glass
parent 769d52ef0f
commit 0f67e2395b
6 changed files with 200 additions and 0 deletions
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13
arch/arm/dts/tegra186.dtsi
View File

@@ -1,6 +1,7 @@
#include "skeleton.dtsi"
#include <dt-bindings/gpio/tegra-gpio.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/mailbox/tegra-hsp.h>
/ {
compatible = "nvidia,tegra186";
@@ -40,6 +41,18 @@
status = "disabled";
};
hsp: hsp@3c00000 {
compatible = "nvidia,tegra186-hsp";
reg = <0x0 0x03c00000 0x0 0xa0000>;
interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
nvidia,num-SM = <0x8>;
nvidia,num-AS = <0x2>;
nvidia,num-SS = <0x2>;
nvidia,num-DB = <0x7>;
nvidia,num-SI = <0x8>;
#mbox-cells = <1>;
};
gpio@c2f0000 {
compatible = "nvidia,tegra186-gpio-aon";
reg-names = "security", "gpio";

2
arch/arm/mach-tegra/Kconfig
View File

@@ -56,8 +56,10 @@ config TEGRA210
config TEGRA186
bool "Tegra186 family"
select DM_MAILBOX
select TEGRA186_GPIO
select TEGRA_ARMV8_COMMON
select TEGRA_HSP
endchoice