linux-kernel - [PATCH 0/3] Add initial support for exynos5420-chagallwifi

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Date:   Thu, 13 Jan 2022 16:40:16 +0100
From:   Henrik Grimler <henrik@...mler.se>
To:     semen.protsenko@...aro.org, virag.david003@...il.com,
        martin.juecker@...il.com, cw00.choi@...sung.com,
        m.szyprowski@...sung.com, alim.akhtar@...sung.com,
        krzysztof.kozlowski@...onical.com, robh+dt@...nel.org,
        devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     Henrik Grimler <henrik@...mler.se>
Subject: [PATCH 0/3] Add initial support for exynos5420-chagallwifi

Samsung's tablet Galaxy Tab S 10.5" (wifi) has codename chagallwifi
and is one of several tablets released in 2013 - 2014 based on Exynos
5420.  This initial devicetree adds support for accessing device over
USB or UART, and allows using a rootfs in either the internal eMMC or
an external sdcard.  4 out of 8 CPUs are brought up when device boots,
which is the same as on the somewhat similar device
exynos5420-arndale-octa.

Patch 2 is necessary after a secure-firmware node is added, otherwise
device hangs during the CPU1BOOT secure monitor call. Without the
secure-firmware node we are not able to bring up any secondary CPUs.

Henrik Grimler (3):
  dt-bindings: arm: samsung: document chagallwifi board binding
  ARM: exynos: only do SMC_CMD_CPU1BOOT call on Exynos4
  ARM: dts: Add support for Samsung Chagallwifi

 .../bindings/arm/samsung/samsung-boards.yaml  |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/exynos5420-chagallwifi.dts  |  57 ++
 .../dts/exynos5420-galaxy-tab-common.dtsi     | 647 ++++++++++++++++++
 arch/arm/mach-exynos/firmware.c               |   4 +-
 5 files changed, 709 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/exynos5420-chagallwifi.dts
 create mode 100644 arch/arm/boot/dts/exynos5420-galaxy-tab-common.dtsi

base-commit: b1cbda0fc3431b464aa78b5f335a5d35428f10c8
-- 
2.34.1