linux-kernel - [PATCH 5.3 071/135] ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c

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Message-Id: <20191203213026.657066619@linuxfoundation.org>
Date:   Tue,  3 Dec 2019 23:35:11 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe Roullier <christophe.roullier@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 071/135] ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c

From: Christophe Roullier <christophe.roullier@...com>

[ Upstream commit 9df50c2e16de7fd739d11d37303afec9e573b46f ]

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@...com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@...com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 0c4e6ebc35291..31556bea2c933 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -914,7 +914,7 @@
 			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";
 		};
 
@@ -927,7 +927,7 @@
 			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";
 		};
 
-- 
2.20.1