From: Gabriel Fernandez <gabriel.fernan...@foss.st.com>

Include this .dtsi file to be backward compatible with old basic bootchain.

For example add:
#include "stm32mp15-no-scmi.dtsi" in a stm32mp157c*.dts file.

Signed-off-by: Gabriel Fernandez <gabriel.fernan...@foss.st.com>
---
 arch/arm/boot/dts/stm32mp15-no-scmi.dtsi | 158 +++++++++++++++++++++++
 1 file changed, 158 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp15-no-scmi.dtsi

diff --git a/arch/arm/boot/dts/stm32mp15-no-scmi.dtsi 
b/arch/arm/boot/dts/stm32mp15-no-scmi.dtsi
new file mode 100644
index 000000000000..4939f96da739
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp15-no-scmi.dtsi
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (C) STMicroelectronics 2020 - All Rights Reserved
+ * Author: Gabriel Fernandez <gabriel.fernan...@st.com> for STMicroelectronics.
+ */
+
+/ {
+
+       clocks {
+               clk_hse: clk-hse {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <24000000>;
+               };
+
+               clk_hsi: clk-hsi {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <64000000>;
+               };
+
+               clk_lse: clk-lse {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <32768>;
+               };
+
+               clk_lsi: clk-lsi {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <32000>;
+               };
+
+               clk_csi: clk-csi {
+                       #clock-cells = <0>;
+                       compatible = "fixed-clock";
+                       clock-frequency = <4000000>;
+               };
+       };
+
+       cpus {
+               cpu0: cpu@0 {
+                       clocks = <&rcc CK_MPU>;
+               };
+
+               cpu1: cpu@1 {
+                       clocks = <&rcc CK_MPU>;
+               };
+       };
+
+       reboot {
+               compatible = "syscon-reboot";
+               regmap = <&rcc>;
+               offset = <0x404>;
+               mask = <0x1>;
+       };
+
+       soc {
+               m_can1: can@4400e000 {
+                       clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
+               };
+
+               m_can2: can@4400f000 {
+                       clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
+               };
+
+               cryp1: cryp@54001000 {
+                       clocks = <&rcc CRYP1>;
+                       resets = <&rcc CRYP1_R>;
+               };
+
+               dsi: dsi@5a000000 {
+                       clocks = <&rcc DSI_K>, <&clk_hse>, <&rcc DSI_PX>;
+               };
+       };
+
+       ahb {
+               m4_rproc: m4@10000000 {
+                       resets = <&rcc MCU_R>, <&rcc MCU_HOLD_BOOT_R>;
+
+                       m4_system_resources {
+                               m4_cec: cec@40016000 {
+                                       clocks = <&rcc CEC_K>, <&rcc CK_LSE>;
+                               };
+
+                               m4_m_can1: can@4400e000 {
+                                       clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
+                               };
+
+                               m4_m_can2: can@4400f000 {
+                                       clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
+                               };
+                       };
+               };
+       };
+
+       firmware {
+               /delete-node/ scmi0;
+               /delete-node/ scmi1;
+       };
+       /delete-node/ sram@2ffff000;
+};
+
+&cec {
+       clocks = <&rcc CEC_K>, <&clk_lse>;
+};
+
+&gpioz {
+       clocks = <&rcc GPIOZ>;
+};
+
+&hash1 {
+       clocks = <&rcc HASH1>;
+       resets = <&rcc HASH1_R>;
+};
+
+&i2c4 {
+       clocks = <&rcc I2C4_K>;
+       resets = <&rcc I2C4_R>;
+};
+
+&i2c6 {
+       clocks = <&rcc I2C6_K>;
+       resets = <&rcc I2C6_R>;
+};
+
+&iwdg2 {
+       clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
+};
+
+&mdma1 {
+       clocks = <&rcc MDMA>;
+       resets = <&rcc MDMA_R>;
+};
+
+&rcc {
+       compatible = "st,stm32mp1-rcc", "syscon";
+       clocks = <&clk_hse>, <&clk_hsi>, <&clk_csi>, <&clk_lse>, <&clk_lsi>;
+};
+
+&rng1 {
+       clocks = <&rcc RNG1_K>;
+       resets = <&rcc RNG1_R>;
+};
+
+&rtc {
+       clocks = <&rcc RTCAPB>, <&rcc RTC>;
+};
+
+&spi6 {
+       clocks = <&rcc SPI6_K>;
+       resets = <&rcc SPI6_R>;
+};
+
+&usart1 {
+       clocks = <&rcc USART1_K>;
+       resets = <&rcc USART1_R>;
+};
-- 
2.17.1

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