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From: "Cédric Le Goater" <clg@kaod.org>
To: openbmc@lists.ozlabs.org
Cc: "Andrew Jeffery" <andrew@aj.id.au>,
	"Joel Stanley" <joel@jms.id.au>,
	"Cédric Le Goater" <clg@kaod.org>
Subject: [PATCH linux dev-4.17 v2 1/2] ARM: dts: aspeed: Add "spi-max-frequency" property
Date: Fri, 22 Jun 2018 09:09:36 +0200	[thread overview]
Message-ID: <20180622070937.21498-2-clg@kaod.org> (raw)
In-Reply-To: <20180622070937.21498-1-clg@kaod.org>

Keep the FMC controller chips at a safe 50 MHz rate and use 100 MHz
for the PNOR on the machines using a AST2500 SoC.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 arch/arm/boot/dts/aspeed-ast2500-evb.dts         | 2 ++
 arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts    | 2 ++
 arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts     | 2 ++
 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 3 +++
 arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts       | 2 ++
 arch/arm/boot/dts/aspeed-g4.dtsi                 | 2 ++
 arch/arm/boot/dts/aspeed-g5.dtsi                 | 7 +++++++
 7 files changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-ast2500-evb.dts b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
index c0a7f51e7eb6..6b78e40d3259 100644
--- a/arch/arm/boot/dts/aspeed-ast2500-evb.dts
+++ b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
@@ -41,6 +41,7 @@
 		status = "okay";
 		m25p,fast-read;
 		label = "bmc";
+		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout.dtsi"
 	};
 };
@@ -51,6 +52,7 @@
 		status = "okay";
 		m25p,fast-read;
 		label = "pnor";
+		spi-max-frequency = <100000000>;
 	};
 };
 
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
index e6095f51ecf5..af41973a3882 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
@@ -66,6 +66,7 @@
 		status = "okay";
 		m25p,fast-read;
 		label = "bmc";
+		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout.dtsi"
 	};
 };
@@ -78,6 +79,7 @@
 	flash@0 {
 		status = "okay";
 		m25p,fast-read;
+		spi-max-frequency = <50000000>;
 		label = "pnor";
 	};
 };
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
index 347938673c83..ffe0c991d985 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
@@ -93,6 +93,7 @@
 		status = "okay";
 		m25p,fast-read;
 		label = "bmc";
+		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout.dtsi"
 	};
 };
@@ -106,6 +107,7 @@
 		status = "okay";
 		m25p,fast-read;
 		label = "pnor";
+		spi-max-frequency = <100000000>;
 	};
 };
 
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index d05ace220a09..c51e3e8ece62 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -190,6 +190,7 @@
 		status = "okay";
 		label = "bmc";
 		m25p,fast-read;
+		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout.dtsi"
 	};
 
@@ -197,6 +198,7 @@
 		status = "okay";
 		label = "alt";
 		m25p,fast-read;
+		spi-max-frequency = <50000000>;
 	};
 };
 
@@ -209,6 +211,7 @@
 		status = "okay";
 		label = "pnor";
 		m25p,fast-read;
+		spi-max-frequency = <100000000>;
 	};
 };
 
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
index 80cc7cba163c..757d6b3eb041 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
@@ -124,6 +124,7 @@
 		status = "okay";
 		label = "bmc";
 		m25p,fast-read;
+		spi-max-frequency = <50000000>;
 #include "openbmc-flash-layout.dtsi"
 	};
 };
@@ -137,6 +138,7 @@
 		status = "okay";
 		label = "pnor";
 		m25p,fast-read;
+		spi-max-frequency = <100000000>;
 	};
 };
 
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index 79257bf415a8..e526f54f400e 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -65,6 +65,7 @@
 			flash@0 {
 				reg = < 0 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
@@ -80,6 +81,7 @@
 			flash@0 {
 				reg = < 0 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 9cc50551c42e..afd33112c329 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -65,16 +65,19 @@
 			flash@0 {
 				reg = < 0 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@1 {
 				reg = < 1 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@2 {
 				reg = < 2 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
@@ -90,11 +93,13 @@
 			flash@0 {
 				reg = < 0 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@1 {
 				reg = < 1 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
@@ -110,11 +115,13 @@
 			flash@0 {
 				reg = < 0 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@1 {
 				reg = < 1 >;
 				compatible = "jedec,spi-nor";
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
-- 
2.13.6

  reply	other threads:[~2018-06-22  7:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-22  7:09 [PATCH linux dev-4.17 v2 0/2] mtd: spi-nor: aspeed: introduce a "spi-max-frequency" property Cédric Le Goater
2018-06-22  7:09 ` Cédric Le Goater [this message]
2018-06-24 23:32   ` [PATCH linux dev-4.17 v2 1/2] ARM: dts: aspeed: Add " Andrew Jeffery
2018-06-25  3:40   ` Joel Stanley
2018-06-25  4:53     ` Cédric Le Goater
2018-06-25  5:01       ` Joel Stanley
2018-06-25  5:16         ` Cédric Le Goater
2018-06-22  7:09 ` [PATCH linux dev-4.17 v2 2/2] mtd: spi-nor: aspeed: limit the maximum SPI frequency Cédric Le Goater
2018-06-24 23:34   ` Andrew Jeffery

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