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0533d4eae1
Add IUART driver based on MCUX SDK. This driver is used to provide serial console support on i.MX8M Mini SoC. Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
88 lines
1.7 KiB
Plaintext
88 lines
1.7 KiB
Plaintext
/*
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* Copyright (c) 2019, Manivannan Sadhasivam
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <arm/armv7-m.dtsi>
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#include <dt-bindings/clock/imx_ccm.h>
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#include <dt-bindings/rdc/imx_rdc.h>
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#include <mem.h>
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/ {
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-m4";
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reg = <0>;
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};
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};
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soc {
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tcml_code: code@1ffe0000 {
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compatible = "nxp,imx-itcm";
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reg = <0x1ffe0000 DT_SIZE_K(128)>;
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label = "TCML CODE";
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};
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tcmu_sys: memory@20000000 {
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compatible = "nxp,imx-dtcm";
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reg = <0x20000000 DT_SIZE_K(128)>;
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label = "TCMU SYSTEM";
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};
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ocram_code: code@900000 {
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compatible = "nxp,imx-code-bus";
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reg = <0x00900000 DT_SIZE_K(256)>;
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label = "OCRAM CODE";
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};
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ocram_sys: memory@20200000 {
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device_type = "memory";
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compatible = "nxp,imx-sys-bus";
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reg = <0x20200000 DT_SIZE_K(256)>;
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label = "OCRAM SYSTEM";
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};
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ocram_s_code: code@180000 {
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compatible = "nxp,imx-code-bus";
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reg = <0x00180000 DT_SIZE_K(32)>;
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label = "OCRAM_S CODE";
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};
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ocram_s_sys: memory@20180000 {
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device_type = "memory";
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compatible = "nxp,imx-sys-bus";
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reg = <0x20180000 DT_SIZE_K(32)>;
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label = "OCRAM_S SYSTEM";
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};
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ccm: ccm@30380000 {
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compatible = "nxp,imx-ccm";
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reg = <0x30380000 DT_SIZE_K(64)>;
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label = "CCM";
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#clock-cells = <3>;
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};
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/*
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* For now only UART4 is supported and
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* tested with the serial driver
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*/
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uart4: uart@30a60000 {
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compatible = "nxp,imx-iuart";
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reg = <0x30a60000 0x10000>;
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interrupts = <29 3>;
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clocks = <&ccm IMX_CCM_UART_CLK 0x6c 24>;
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label = "UART_4";
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status = "disabled";
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};
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};
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};
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&nvic {
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arm,num-irq-priority-bits = <4>;
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};
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