From: Mike Looijmans <mike.looijmans@topic.nl>
To: robh+dt@kernel.org, michal.simek@xilinx.com,
mark.rutland@arm.com, devicetree@vger.kernel.org
Cc: m.tretter@pengutronix.de, nava.manne@xilinx.com,
rajan.vaja@xilinx.com, manish.narani@xilinx.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Mike Looijmans <mike.looijmans@topic.nl>
Subject: [PATCH] devicetree: zynqmp.dtsi: Add bootmode selection support
Date: Wed, 19 Feb 2020 13:20:36 +0100 [thread overview]
Message-ID: <20200219122036.24575-1-mike.looijmans@topic.nl> (raw)
Add bootmode override support for ZynqMP devices. Allows one to select
a boot device by running "reboot qspi32" for example. Activate config
item CONFIG_SYSCON_REBOOT_MODE to make this work.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---
arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 26d926eb1431..4c38d77ecbba 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -246,6 +246,30 @@
};
};
+ /* Clock and Reset control registers for LPD */
+ lpd_apb: apb@ff5e0000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x0 0xff5e0000 0x0 0x400>;
+ reboot-mode {
+ compatible = "syscon-reboot-mode";
+ offset = <0x200>;
+ mask = <0xf100>;
+ /* Bit(8) is the "force user" bit */
+ mode-normal = <0x0000>;
+ mode-psjtag = <0x0100>;
+ mode-qspi24 = <0x1100>;
+ mode-qspi32 = <0x2100>;
+ mode-sd0 = <0x3100>;
+ mode-nand = <0x4100>;
+ mode-sd1 = <0x6100>;
+ mode-emmc = <0x6100>;
+ mode-usb0 = <0x7100>;
+ mode-pjtag0 = <0x8100>;
+ mode-pjtag1 = <0x9100>;
+ mode-sd1ls = <0xe100>;
+ };
+ };
+
/* GDMA */
fpd_dma_chan1: dma@fd500000 {
status = "disabled";
--
2.17.1
next reply other threads:[~2020-02-19 12:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 12:20 Mike Looijmans [this message]
2020-02-19 18:23 ` [PATCH] devicetree: zynqmp.dtsi: Add bootmode selection support Vesa Jääskeläinen
2020-02-20 6:49 ` Michal Simek
2020-02-20 6:56 ` Mike Looijmans
2020-02-20 7:01 ` Michal Simek
2020-02-20 8:01 ` Mike Looijmans
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