2c68614713
Our patch needs to be adjusted after commit 58e4a2d27d32 ("extcon: Fix
extcon_get_extcon_dev() error handling"). Also generate all other
patch headers, and make it possible to apply patch 0008 and 0009 with
git am.
61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
From 81d08c1c70aac6ab399eacb6cd393f0de2a64108 Mon Sep 17 00:00:00 2001
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From: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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Date: Wed, 4 Nov 2020 00:06:26 +0100
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Subject: [PATCH 02/13] ARM: dts: exynos: Add reboot modes to midas
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The values have been taken from the sec-reboot.c driver in
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the 3.0.101 smdk4412 kernel used in LineageOS which is based
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on Samsung source code releases for various devices.
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Only the strict minimum modes have been added: the S-Boot 4.0
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bootloader is nonfree, so exporting less well known modes could
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potentially have unwanted consequences.
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TODO:
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- After reboot to download, heimdall doesn't work while it works
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with the SMDK4412 kernel.
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- Fix reboot without arguments (Test: Try "Reboot system now"
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in a recovery after rebooting to the recovery)
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Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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---
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arch/arm/boot/dts/exynos4412-midas.dtsi | 23 +++++++++++++++++++++++
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1 file changed, 23 insertions(+)
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diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
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index b967397a46c5..3167c51b6296 100644
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--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
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+++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
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@@ -982,6 +982,29 @@ &mshc_0 {
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&pmu_system_controller {
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assigned-clocks = <&pmu_system_controller 0>;
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assigned-clock-parents = <&clock CLK_XUSBXTI>;
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+
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+ /* S-Boot 4.0 */
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+ #define S5P_INFORM2 0xF008
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+ #define S5P_INFORM3 0x080C
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+ #define BOOT_MODE_PREFIX 0x12345670
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+ #define BOOT_NORMAL (BOOT_MODE_PREFIX | 0)
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+ #define BOOT_DOWNLOAD (BOOT_MODE_PREFIX | 1)
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+ #define BOOT_RECOVERY (BOOT_MODE_PREFIX | 4)
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+
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+ no-lpm-mode {
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+ compatible = "syscon-reboot";
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+ offset = <S5P_INFORM2>;
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+ value = <0x12345678>;
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+ };
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+
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+ reboot-mode {
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+ compatible = "syscon-reboot-mode";
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+ offset = <S5P_INFORM3>;
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+ mode-normal = <BOOT_NORMAL>;
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+ mode-recovery = <BOOT_RECOVERY>;
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+ mode-bootloader = <BOOT_DOWNLOAD>;
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+ mode-download = <BOOT_DOWNLOAD>;
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+ };
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};
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&pinctrl_0 {
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--
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2.38.0
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