* [PATCH RESEND v2 1/2] ARM: dts: socfgpa: set bridges status to disabled
@ 2019-01-25 9:57 Steffen Trumtrar
2019-01-25 9:57 ` [PATCH RESEND v2 2/2] ARM: dts: socfpga: Add fpga2hps and fpga2sdram bridges Steffen Trumtrar
0 siblings, 1 reply; 2+ messages in thread
From: Steffen Trumtrar @ 2019-01-25 9:57 UTC (permalink / raw)
To: Dinh Nguyen; +Cc: kernel, linux-arm-kernel
The hps-to-fpga bridges can't be used, when the FPGA is not programmed.
Set the default state to disabled and leave enabling them to the board-specific
dts files.
Although this changes behavior, there are no in-tree users of the bridges, so
this won't break anything.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
arch/arm/boot/dts/socfpga.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index dcb8fba3d709..f53d9dd05d28 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -527,6 +527,7 @@
reg = <0xff400000 0x100000>;
resets = <&rst LWHPS2FPGA_RESET>;
clocks = <&l4_main_clk>;
+ status = "disabled";
};
fpga_bridge1: fpga_bridge@ff500000 {
@@ -534,6 +535,7 @@
reg = <0xff500000 0x10000>;
resets = <&rst HPS2FPGA_RESET>;
clocks = <&l4_main_clk>;
+ status = "disabled";
};
fpgamgr0: fpgamgr@ff706000 {
--
2.20.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH RESEND v2 2/2] ARM: dts: socfpga: Add fpga2hps and fpga2sdram bridges
2019-01-25 9:57 [PATCH RESEND v2 1/2] ARM: dts: socfgpa: set bridges status to disabled Steffen Trumtrar
@ 2019-01-25 9:57 ` Steffen Trumtrar
0 siblings, 0 replies; 2+ messages in thread
From: Steffen Trumtrar @ 2019-01-25 9:57 UTC (permalink / raw)
To: Dinh Nguyen; +Cc: kernel, linux-arm-kernel
Add the remaining two bridges on the Cyclone-V SoCFPGA SoCs.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
arch/arm/boot/dts/socfpga.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index f53d9dd05d28..d0cdc331f125 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -538,6 +538,20 @@
status = "disabled";
};
+ fpga_bridge2: fpga-bridge@ff600000 {
+ compatible = "altr,socfpga-fpga2hps-bridge";
+ reg = <0xff600000 0x100000>;
+ resets = <&rst FPGA2HPS_RESET>;
+ clocks = <&l4_main_clk>;
+ status = "disabled";
+ };
+
+ fpga_bridge3: fpga-bridge@ffc25080 {
+ compatible = "altr,socfpga-fpga2sdram-bridge";
+ reg = <0xffc25080 0x4>;
+ status = "disabled";
+ };
+
fpgamgr0: fpgamgr@ff706000 {
compatible = "altr,socfpga-fpga-mgr";
reg = <0xff706000 0x1000
--
2.20.1
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 2+ messages in thread
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