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From:   Frank Li <Frank.Li@nxp.com>
To:     imx@lists.linux.dev, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Joakim Zhang <qiangqing.zhang@nxp.com>,
        Marcel Ziswiler <marcel.ziswiler@toradex.com>,
        devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@lists.infradead.org (moderated list:ARM/FREESCALE IMX
        / MXC ARM ARCHITECTURE), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/1] arm64: dts: imx8qm: Fix edma3 power-domains and interrupt number
Date:   Wed,  6 Dec 2023 15:12:55 -0500
Message-Id: <20231206201256.1113800-1-Frank.Li@nxp.com>
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Fixed a kernel dump when access edma3 registers.

[    1.517547] SError Interrupt on CPU1, code 0x00000000bf000002 -- SError
[    1.517556] CPU: 1 PID: 59 Comm: kworker/u8:2 Not tainted 6.7.0-rc3-next-20231129-dirty #3
[    1.517564] Hardware name: Freescale i.MX8QM MEK (DT)
[    1.517570] Workqueue: events_unbound deferred_probe_work_func
[    1.517593] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    1.517601] pc : vsnprintf+0x60/0x770
[    1.517612] lr : snprintf+0x58/0x80
[    1.517619] sp : ffff800082f0b9e0
[    1.517622] x29: ffff800082f0b9e0 x28: ffff8000819a8af8 x27: ffff000801f90080
[    1.517632] x26: ffff000801f90510 x25: 0000000000000001 x24: 0000000000000020
[    1.517640] x23: 00000000ffffffd8 x22: ffff000800114800 x21: ffff800082f0baf0
[    1.517650] x20: ffff000801f90698 x19: ffff000801f906b8 x18: ffffffffffffffff
[    1.517659] x17: 6e6f632d616d642e x16: 3030303066396135 x15: ffff800102f0b687
[    1.517668] x14: 0000000000000000 x13: 30206e6168632065 x12: 74697277203a7265
[    1.517677] x11: 6c6c6f72746e6f63 x10: 2d616d642e303030 x9 : 72656c6c6f72746e
[    1.517686] x8 : ffff000800396740 x7 : 205d333337383035 x6 : ffff800082f0baf0
[    1.517694] x5 : 00000000ffffffd8 x4 : ffff000800396740 x3 : ffff800082f0ba70
[    1.517703] x2 : ffff8000819a8af8 x1 : ffff800082f0baf0 x0 : 0000000000000025
[    1.517713] Kernel panic - not syncing: Asynchronous SError Interrupt
[    1.517718] CPU: 1 PID: 59 Comm: kworker/u8:2 Not tainted 6.7.0-rc3-next-20231129-dirty #3
[    1.517724] Hardware name: Freescale i.MX8QM MEK (DT)
[    1.517727] Workqueue: events_unbound deferred_probe_work_func
[    1.517736] Call trace:
[    1.517739]  dump_backtrace+0x90/0xe8
[    1.517752]  show_stack+0x18/0x24
[    1.517761]  dump_stack_lvl+0x48/0x60
[    1.517771]  dump_stack+0x18/0x24
[    1.517780]  panic+0x36c/0x3ac
[    1.517789]  nmi_panic+0x48/0x94
[    1.517796]  arm64_serror_panic+0x6c/0x78
[    1.517801]  do_serror+0x3c/0x78
[    1.517806]  el1h_64_error_handler+0x30/0x48
[    1.517813]  el1h_64_error+0x64/0x68
[    1.517819]  vsnprintf+0x60/0x770
[    1.517827]  snprintf+0x58/0x80
[    1.517834]  fsl_edma_probe+0x2ac/0x830

It is eDMA1 at QM, which have the same register with eDMA3 at qxp.

Fixes: e4d7a330fb7a ("arm64: dts: imx8: add edma[0..3]")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 .../boot/dts/freescale/imx8qm-ss-dma.dtsi     | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
index 01539df335f8c..5d76b4dee4cef 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi
@@ -44,6 +44,33 @@ can2_lpcg: clock-controller@5acf0000 {
 	};
 };
 
+/* It is eDMA1 in 8QM RM, but 8QXP it is eDMA3 */
+&edma3 {
+	reg = <0x5a9f0000 0x210000>;
+	dma-channels = <10>;
+	interrupts = <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 427 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 428 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 431 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 432 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 433 IRQ_TYPE_LEVEL_HIGH>;
+	power-domains = <&pd IMX_SC_R_DMA_1_CH0>,
+			<&pd IMX_SC_R_DMA_1_CH1>,
+			<&pd IMX_SC_R_DMA_1_CH2>,
+			<&pd IMX_SC_R_DMA_1_CH3>,
+			<&pd IMX_SC_R_DMA_1_CH4>,
+			<&pd IMX_SC_R_DMA_1_CH5>,
+			<&pd IMX_SC_R_DMA_1_CH6>,
+			<&pd IMX_SC_R_DMA_1_CH7>,
+			<&pd IMX_SC_R_DMA_1_CH8>,
+			<&pd IMX_SC_R_DMA_1_CH9>;
+};
+
+/* It is edma0 in 8QM RM, but it is eDMA2 at 8QXP */
 &edma2 {
 	reg = <0x5a1f0000 0x170000>;
 	#dma-cells = <3>;
-- 
2.34.1