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From: Christophe Roullier <christophe.roullier@st.com>
To: <robh@kernel.org>, <davem@davemloft.net>, <joabreu@synopsys.com>,
	<mark.rutland@arm.com>, <mcoquelin.stm32@gmail.com>,
	<alexandre.torgue@st.com>, <peppe.cavallaro@st.com>
Cc: <linux-stm32@st-md-mailman.stormreply.com>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <netdev@vger.kernel.org>,
	<christophe.roullier@st.com>, <andrew@lunn.ch>
Subject: [PATCH  1/1] ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
Date: Mon, 4 Nov 2019 15:31:45 +0100	[thread overview]
Message-ID: <20191104143145.7053-1-christophe.roullier@st.com> (raw)

Split the 10Kbytes CAN message RAM to be able to use simultaneously
FDCAN1 and FDCAN2 instances.
First 5Kbytes are allocated to FDCAN1 and last 5Kbytes are used for
FDCAN2. To do so, set the offset to 0x1400 in mram-cfg for FDCAN2.

Fixes: d44d6e021301 ("ARM: dts: stm32: change CAN RAM mapping on stm32mp157c")
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654a0a39..f98e0370c0bc 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -932,7 +932,7 @@
 			interrupt-names = "int0", "int1";
 			clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 			clock-names = "hclk", "cclk";
-			bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
+			bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
 			status = "disabled";
 		};
 
@@ -945,7 +945,7 @@
 			interrupt-names = "int0", "int1";
 			clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 			clock-names = "hclk", "cclk";
-			bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
+			bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
 			status = "disabled";
 		};
 
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Christophe Roullier <christophe.roullier@st.com>
To: <robh@kernel.org>, <davem@davemloft.net>, <joabreu@synopsys.com>,
	<mark.rutland@arm.com>, <mcoquelin.stm32@gmail.com>,
	<alexandre.torgue@st.com>, <peppe.cavallaro@st.com>
Cc: devicetree@vger.kernel.org, andrew@lunn.ch,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	christophe.roullier@st.com, linux-arm-kernel@lists.infradead.org
Subject: [PATCH  1/1] ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
Date: Mon, 4 Nov 2019 15:31:45 +0100	[thread overview]
Message-ID: <20191104143145.7053-1-christophe.roullier@st.com> (raw)

Split the 10Kbytes CAN message RAM to be able to use simultaneously
FDCAN1 and FDCAN2 instances.
First 5Kbytes are allocated to FDCAN1 and last 5Kbytes are used for
FDCAN2. To do so, set the offset to 0x1400 in mram-cfg for FDCAN2.

Fixes: d44d6e021301 ("ARM: dts: stm32: change CAN RAM mapping on stm32mp157c")
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
---
 arch/arm/boot/dts/stm32mp157c.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654a0a39..f98e0370c0bc 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -932,7 +932,7 @@
 			interrupt-names = "int0", "int1";
 			clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 			clock-names = "hclk", "cclk";
-			bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
+			bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
 			status = "disabled";
 		};
 
@@ -945,7 +945,7 @@
 			interrupt-names = "int0", "int1";
 			clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
 			clock-names = "hclk", "cclk";
-			bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
+			bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
 			status = "disabled";
 		};
 
-- 
2.17.1


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             reply	other threads:[~2019-11-04 14:32 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-04 14:31 Christophe Roullier [this message]
2019-11-04 14:31 ` [PATCH 1/1] ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c Christophe Roullier

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