Klimt WiFi has product name Samsung Galaxy Tab S 8.4" and was released
in 2014. It has similar hardware to exynos5420-chagall-wifi and the
two devices can hence share a common base dtsi.
Same issues as for Chagall Wifi applies: CCI has to be disabled and
only 4 out of 8 CPUs are brought up at boot (see
https://lore.kernel.org/r/[email protected]).
Henrik Grimler (2):
dt-bindings: arm: samsung: document Klimt WiFi board binding
ARM: dts: Add support for Samsung Klimt WiFi
.../bindings/arm/samsung/samsung-boards.yaml | 1 +
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/exynos5420-klimt-wifi.dts | 75 +++++++++++++++++++
3 files changed, 77 insertions(+)
create mode 100644 arch/arm/boot/dts/exynos5420-klimt-wifi.dts
base-commit: e758cdb29e81cee1d53e1a06bb3db0a32fc8c347
--
2.34.1
Klimt WiFi has the product name Samsung Galaxy Tab S 8.4". Board is
based on Exynos 5420, and has similar hardware to Chagall WiFi, but
with a smaller battery, smaller screen and another touchscreen
controller.
The device tree added here contains support for:
- UART access through a micro-usb cable with 619 kOhm between ID & GND
- Accessing the internal eMMC storage
- Accessing an external SD card
- USB, after configuration it is possible to ssh into the device
through a usb cable
Signed-off-by: Henrik Grimler <[email protected]>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/exynos5420-klimt-wifi.dts | 75 +++++++++++++++++++++
2 files changed, 76 insertions(+)
create mode 100644 arch/arm/boot/dts/exynos5420-klimt-wifi.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 28fbfda94cb9..21c4a3ad068a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -222,6 +222,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \
exynos5420-peach-pit.dtb \
exynos5420-smdk5420.dtb \
exynos5420-chagall-wifi.dtb \
+ exynos5420-klimt-wifi.dtb \
exynos5422-odroidhc1.dtb \
exynos5422-odroidxu3.dtb \
exynos5422-odroidxu3-lite.dtb \
diff --git a/arch/arm/boot/dts/exynos5420-klimt-wifi.dts b/arch/arm/boot/dts/exynos5420-klimt-wifi.dts
new file mode 100644
index 000000000000..011787b1bbf0
--- /dev/null
+++ b/arch/arm/boot/dts/exynos5420-klimt-wifi.dts
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung's Exynos5420 Klimt WiFi board device tree source
+ *
+ * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2022 Henrik Grimler
+ */
+
+/dts-v1/;
+#include "exynos5420-galaxy-tab-common.dtsi"
+
+/ {
+ model = "Samsung Klimt WiFi based on Exynos5420";
+ compatible = "samsung,klimt-wifi", "samsung,exynos5420", \
+ "samsung,exynos5";
+};
+
+&ldo15_reg {
+ /* Unused */
+ regulator-name = "VDD_LDO15";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+};
+
+&ldo17_reg {
+ regulator-name = "VDD_VCI_3V0";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+};
+
+&ldo28_reg {
+ regulator-name = "VDD3_1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+};
+
+&ldo29_reg {
+ regulator-name = "VDDR_1V6";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <1600000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+};
+
+&ldo31_reg {
+ /* Unused */
+ regulator-name = "VDD_LDO31";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+};
+
+&ldo32_reg {
+ regulator-name = "VDD_TSP_1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+};
+
+&mmc_2 {
+ sd-uhs-sdr104;
+};
--
2.34.1
Add binding for Galaxy Tab S 8.4", based on Exynos 5420 with codename
klimt-wifi.
Signed-off-by: Henrik Grimler <[email protected]>
---
.../devicetree/bindings/arm/samsung/samsung-boards.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
index a2a8bf44fe9b..faea33e4f731 100644
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
@@ -141,6 +141,7 @@ properties:
- enum:
- insignal,arndale-octa # Insignal Arndale Octa
- samsung,chagall-wifi # Samsung SM-T800
+ - samsung,klimt-wifi # Samsung SM-T700
- samsung,smdk5420 # Samsung SMDK5420 eval
- const: samsung,exynos5420
- const: samsung,exynos5
--
2.34.1
On Mon, 24 Jan 2022 14:12:39 +0100, Henrik Grimler wrote:
> Klimt WiFi has product name Samsung Galaxy Tab S 8.4" and was released
> in 2014. It has similar hardware to exynos5420-chagall-wifi and the
> two devices can hence share a common base dtsi.
>
> Same issues as for Chagall Wifi applies: CCI has to be disabled and
> only 4 out of 8 CPUs are brought up at boot (see
> https://lore.kernel.org/r/[email protected]).
>
> [...]
Applied, thanks!
[1/2] dt-bindings: arm: samsung: document Klimt WiFi board binding
commit: 8d4d0d7c43e6f87df02a0acac206b50c265962d1
[2/2] ARM: dts: exynos: Add support for Samsung Klimt WiFi
commit: 21fc732222559c7b5a8731571d30501d5fcb631c
Best regards,
--
Krzysztof Kozlowski <[email protected]>