mirror of
https://github.com/Ysurac/openmptcprouter.git
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102 lines
3 KiB
Diff
102 lines
3 KiB
Diff
From 0b8c4b1c8131014a88cd5706bc44f26d2ea4371e Mon Sep 17 00:00:00 2001
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From: Peter Huewe <peterhuewe@gmx.de>
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Date: Thu, 14 Jun 2018 22:51:24 +0200
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Subject: [PATCH 288/432] Add overlay for SLB9760 Iridium /LetsTrust TPM
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Device Tree overlay for the Infineon SLB9670 Trusted Platform Module add-on
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boards, which can be used as a secure key storage and hwrng.
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available as "Iridium SLB9670" by Infineon and "LetsTrust TPM" by
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pi3g.
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Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 8 ++++
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.../boot/dts/overlays/tpm-slb9670-overlay.dts | 44 +++++++++++++++++++
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3 files changed, 53 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
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diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
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index e31f8af7ce75..31f834d0459d 100644
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -137,6 +137,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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tc358743.dtbo \
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tc358743-audio.dtbo \
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tinylcd35.dtbo \
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+ tpm-slb9670.dtbo \
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uart0.dtbo \
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uart1.dtbo \
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upstream.dtbo \
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diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
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index 1e89b61a4906..87e193e262aa 100644
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2012,6 +2012,14 @@ Params: speed Display SPI bus speed
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dtoverlay=tinylcd35,touch,touchgpio=3
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+Name: tpm-slb9670
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+Info: Enables support for Infineon SLB9670 Trusted Platform Module add-on
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+ boards, which can be used as a secure key storage and hwrng,
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+ available as "Iridium SLB9670" by Infineon and "LetsTrust TPM" by pi3g.
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+Load: dtoverlay=tpm-slb9670
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+Params: <None>
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+
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+
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Name: uart0
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Info: Change the pin usage of uart0
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Load: dtoverlay=uart0,<param>=<val>
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diff --git a/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts b/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
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new file mode 100644
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index 000000000000..eac4511050de
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
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@@ -0,0 +1,44 @@
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+/*
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+ * Device Tree overlay for the Infineon SLB9670 Trusted Platform Module add-on
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+ * boards, which can be used as a secure key storage and hwrng.
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+ * available as "Iridium SLB9670" by Infineon and "LetsTrust TPM" by pi3g.
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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+
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+ fragment@0 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&spidev1>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ /* needed to avoid dtc warning */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ slb9670: slb9670@1 {
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+ compatible = "infineon,slb9670";
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+ reg = <1>; /* CE1 */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ spi-max-frequency = <32000000>;
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+ status = "okay";
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+ };
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+
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+ };
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+ };
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+};
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--
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2.19.1
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