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Date: Tue, 12 Jan 2016 19:32:58 +0800
From: Andy Yan <andy.yan@...k-chips.com>
To: heiko@...ech.de, arnd@...db.de, john.stultz@...aro.org
Cc: linux@...ck-us.net, galak@...eaurora.org,
ijc+devicetree@...lion.org.uk, robh+dt@...nel.org,
catalin.marinas@....com, geert+renesas@...der.be, sre@...nel.org,
olof@...om.net, dbaryshkov@...il.com,
alexandre.belloni@...e-electrons.com, jun.nie@...aro.org,
pawel.moll@....com, f.fainelli@...il.com, will.deacon@....com,
linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
linux-pm@...r.kernel.org, linux@....linux.org.uk,
linux-arm-kernel@...ts.infradead.org, lorenzo.pieralisi@....com,
moritz.fischer@...us.com, cernekee@...il.com,
linux-kernel@...r.kernel.org, dwmw2@...radead.org,
mark.rutland@....com, maxime.ripard@...e-electrons.com,
Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v2 3/4] ARM: dts: rockchip: add syscon-reboot-mode node
Rockchip platform use a SYSCON mapped register store
the reboot mode magic value for bootloader to use when
system reboot. So add syscon-reboot-mode driver DT node
for rk3xxx,rk3288 platform
Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
---
Changes in v2:
- make this node as a subnode of PMU
Changes in v1:
- correct the maskrom magic number
- use macro defined in rockchip_boot-mode.h for reboot-mode DT node
arch/arm/boot/dts/rk3288.dtsi | 31 ++++++++++++++++++++++++++
arch/arm/boot/dts/rk3xxx.dtsi | 33 +++++++++++++++++++++++++++-
include/dt-bindings/soc/rockchip_boot-mode.h | 30 +++++++++++++++++++++++++
3 files changed, 93 insertions(+), 1 deletion(-)
create mode 100644 include/dt-bindings/soc/rockchip_boot-mode.h
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 04ea209..4e49fb7 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -45,6 +45,7 @@
#include <dt-bindings/clock/rk3288-cru.h>
#include <dt-bindings/thermal/thermal.h>
#include <dt-bindings/power/rk3288-power.h>
+#include <dt-bindings/soc/rockchip_boot-mode.h>
#include "skeleton.dtsi"
/ {
@@ -712,6 +713,36 @@
clocks = <&cru ACLK_GPU>;
};
};
+
+ reboot-mode {
+ compatible = "syscon-reboot-mode";
+ offset = <0x94>;
+
+ normal {
+ linux,mode = "normal";
+ loader,magic = <BOOT_NORMAL>;
+ };
+
+ loader {
+ linux,mode = "loader";
+ loader,magic = <BOOT_LOADER>;
+ };
+
+ maskrom {
+ linux,mode = "maskrom";
+ loader,magic = <BOOT_MASKROM>;
+ };
+
+ recovery {
+ linux,mode = "recovery";
+ loader,magic = <BOOT_RECOVERY>;
+ };
+
+ fastboot {
+ linux,mode = "fastboot";
+ loader,magic = <BOOT_FASTBOOT>;
+ };
+ };
};
sgrf: syscon@...40000 {
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index 4497d28..58af546 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -43,6 +43,7 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/soc/rockchip_boot-mode.h>
#include "skeleton.dtsi"
/ {
@@ -242,8 +243,38 @@
};
pmu: pmu@...04000 {
- compatible = "rockchip,rk3066-pmu", "syscon";
+ compatible = "rockchip,rk3066-pmu", "syscon", "simple-mfd";
reg = <0x20004000 0x100>;
+
+ reboot-mode {
+ compatible = "syscon-reboot-mode";
+ offset = <0x40>;
+
+ normal {
+ linux,mode = "normal";
+ loader,magic = <BOOT_NORMAL>;
+ };
+
+ loader {
+ linux,mode = "loader";
+ loader,magic = <BOOT_LOADER>;
+ };
+
+ maskrom {
+ linux,mode = "maskrom";
+ loader,magic = <BOOT_MASKROM>;
+ };
+
+ recovery {
+ linux,mode = "recovery";
+ loader,magic = <BOOT_RECOVERY>;
+ };
+
+ fastboot {
+ linux,mode = "fastboot";
+ loader,magic = <BOOT_FASTBOOT>;
+ };
+ };
};
grf: grf@...08000 {
diff --git a/include/dt-bindings/soc/rockchip_boot-mode.h b/include/dt-bindings/soc/rockchip_boot-mode.h
new file mode 100644
index 0000000..eedf113
--- /dev/null
+++ b/include/dt-bindings/soc/rockchip_boot-mode.h
@@ -0,0 +1,30 @@
+#ifndef __ROCKCHIP_BOOT_MODE_H
+#define __ROCKCHIP_BOOT_MODE_H
+
+/*high 24 bits is tag, low 8 bits is type*/
+#define REBOOT_FLAG 0x5242C300
+/* normal boot */
+#define BOOT_NORMAL (REBOOT_FLAG + 0)
+/* enter loader rockusb mode */
+#define BOOT_LOADER (REBOOT_FLAG + 1)
+/* enter maskrom rockusb mode */
+#define BOOT_MASKROM (0xEF08A53C)
+/* enter recovery */
+#define BOOT_RECOVERY (REBOOT_FLAG + 3)
+/* do not enter recover */
+#define BOOT_NORECOVER (REBOOT_FLAG + 4)
+/* boot second OS*/
+#define BOOT_SECONDOS (REBOOT_FLAG + 5)
+/* enter recover and wipe data. */
+#define BOOT_WIPEDATA (REBOOT_FLAG + 6)
+/* enter recover and wipe all data. */
+#define BOOT_WIPEALL (REBOOT_FLAG + 7)
+/* check firmware img with backup part*/
+#define BOOT_CHECKIMG (REBOOT_FLAG + 8)
+ /* enter fast boot mode */
+#define BOOT_FASTBOOT (REBOOT_FLAG + 9)
+#define BOOT_SECUREBOOT_DISABLE (REBOOT_FLAG + 10)
+/* enter charge mode */
+#define BOOT_CHARGING (REBOOT_FLAG + 11)
+
+#endif
--
1.9.1
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