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* [PATCH] arm64: dts: renesas: Add /soc dma-ranges
@ 2019-09-07 16:16 marek.vasut
  2019-09-09  8:19 ` Geert Uytterhoeven
                   ` (2 more replies)
  0 siblings, 3 replies; 17+ messages in thread
From: marek.vasut @ 2019-09-07 16:16 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: Marek Vasut, Geert Uytterhoeven, Wolfram Sang, devicetree,
	linux-renesas-soc

From: Marek Vasut <marek.vasut+renesas@gmail.com>

Add dma-ranges property into /soc node to describe the DMA capabilities
of the bus. This is currently needed to translate PCI DMA ranges, which
are limited to 32bit addresses.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: devicetree@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
To: linux-arm-kernel@lists.infradead.org
---
NOTE: This is needed for the following patches to work correctly:
      https://patchwork.ozlabs.org/patch/1144870/
      https://patchwork.ozlabs.org/patch/1144871/
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi  | 1 +
 arch/arm64/boot/dts/renesas/r8a7796.dtsi  | 1 +
 arch/arm64/boot/dts/renesas/r8a77965.dtsi | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 95deff66eeb6..2102140a6723 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -330,6 +330,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0 0x40000000 0 0x40000000 0 0xc0000000>;
 
 		rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 3dc9d73f589a..d115ff34d0db 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -300,6 +300,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0 0x40000000 0 0x40000000 0 0xc0000000>;
 
 		rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a7796-wdt",
diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
index 4ae163220f60..74d934cfe44e 100644
--- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
@@ -183,6 +183,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0 0x40000000 0 0x40000000 0 0xc0000000>;
 
 		rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a77965-wdt",
-- 
2.23.0.rc1


^ permalink raw reply related	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2019-09-30 15:38 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-07 16:16 [PATCH] arm64: dts: renesas: Add /soc dma-ranges marek.vasut
2019-09-09  8:19 ` Geert Uytterhoeven
2019-09-09  8:42   ` Marek Vasut
2019-09-09  9:05     ` Geert Uytterhoeven
2019-09-09  9:12       ` Marek Vasut
2019-09-09 11:18 ` Geert Uytterhoeven
2019-09-14 15:53   ` Marek Vasut
2019-09-14 16:33     ` Geert Uytterhoeven
2019-09-14 16:45       ` Marek Vasut
2019-09-15 13:11         ` Geert Uytterhoeven
2019-09-13 15:14 ` Rob Herring
2019-09-14 15:50   ` Marek Vasut
2019-09-23 22:33   ` Rob Herring
2019-09-26 20:02     ` Marek Vasut
2019-09-30 12:42     ` Marek Vasut
2019-09-30 15:08       ` Rob Herring
2019-09-30 15:38         ` Marek Vasut

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