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https://github.com/brain-hackers/u-boot-brain
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![Patrick Delaunay](/assets/img/avatar_default.png)
STM32 serial IP can be reset via reset controller. Add the support of reset to uart nodes on stm32mp15-u-boot.dtsi, the ad-dons file for U-Boot. This patch fix issues when previous UART configuration, for example done in TF-A or ROM code, is not handled in U-Boot stm32 serial driver init. This reset property won't be not added in Linux kernel device tree as this reset is not used in Linux STM32 serial driver. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
227 lines
2.7 KiB
Plaintext
227 lines
2.7 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright : STMicroelectronics 2018
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*/
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/ {
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aliases {
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gpio0 = &gpioa;
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gpio1 = &gpiob;
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gpio2 = &gpioc;
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gpio3 = &gpiod;
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gpio4 = &gpioe;
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gpio5 = &gpiof;
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gpio6 = &gpiog;
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gpio7 = &gpioh;
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gpio8 = &gpioi;
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gpio9 = &gpioj;
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gpio10 = &gpiok;
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gpio25 = &gpioz;
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pinctrl0 = &pinctrl;
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pinctrl1 = &pinctrl_z;
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};
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clocks {
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u-boot,dm-pre-reloc;
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};
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/* need PSCI for sysreset during board_f */
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psci {
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u-boot,dm-pre-proper;
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};
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reboot {
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u-boot,dm-pre-reloc;
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compatible = "syscon-reboot";
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regmap = <&rcc>;
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offset = <0x404>;
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mask = <0x1>;
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};
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soc {
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u-boot,dm-pre-reloc;
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ddr: ddr@5a003000 {
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u-boot,dm-pre-reloc;
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compatible = "st,stm32mp1-ddr";
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reg = <0x5A003000 0x550
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0x5A004000 0x234>;
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clocks = <&rcc AXIDCG>,
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<&rcc DDRC1>,
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<&rcc DDRC2>,
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<&rcc DDRPHYC>,
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<&rcc DDRCAPB>,
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<&rcc DDRPHYCAPB>;
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clock-names = "axidcg",
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"ddrc1",
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"ddrc2",
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"ddrphyc",
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"ddrcapb",
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"ddrphycapb";
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status = "okay";
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};
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};
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};
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&bsec {
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u-boot,dm-pre-reloc;
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};
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&clk_csi {
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u-boot,dm-pre-reloc;
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};
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&clk_hsi {
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u-boot,dm-pre-reloc;
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};
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&clk_hse {
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u-boot,dm-pre-reloc;
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};
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&clk_lsi {
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u-boot,dm-pre-reloc;
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};
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&clk_lse {
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u-boot,dm-pre-reloc;
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};
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&cpu0_opp_table {
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u-boot,dm-spl;
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opp-650000000 {
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u-boot,dm-spl;
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};
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opp-800000000 {
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u-boot,dm-spl;
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};
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};
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&gpioa {
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u-boot,dm-pre-reloc;
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};
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&gpiob {
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u-boot,dm-pre-reloc;
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};
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&gpioc {
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u-boot,dm-pre-reloc;
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};
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&gpiod {
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u-boot,dm-pre-reloc;
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};
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&gpioe {
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u-boot,dm-pre-reloc;
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};
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&gpiof {
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u-boot,dm-pre-reloc;
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};
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&gpiog {
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u-boot,dm-pre-reloc;
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};
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&gpioh {
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u-boot,dm-pre-reloc;
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};
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&gpioi {
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u-boot,dm-pre-reloc;
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};
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&gpioj {
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u-boot,dm-pre-reloc;
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};
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&gpiok {
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u-boot,dm-pre-reloc;
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};
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&gpioz {
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u-boot,dm-pre-reloc;
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};
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&iwdg2 {
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u-boot,dm-pre-reloc;
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};
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/* pre-reloc probe = reserve video frame buffer in video_reserve() */
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<dc {
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u-boot,dm-pre-proper;
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};
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&pinctrl {
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u-boot,dm-pre-reloc;
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};
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&pinctrl_z {
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u-boot,dm-pre-reloc;
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};
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&pwr_regulators {
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u-boot,dm-pre-reloc;
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};
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&rcc {
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u-boot,dm-pre-reloc;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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&sdmmc1 {
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compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell";
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};
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&sdmmc2 {
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compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell";
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};
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&sdmmc3 {
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compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell";
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};
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&usart1 {
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resets = <&rcc USART1_R>;
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};
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&usart2 {
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resets = <&rcc USART2_R>;
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};
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&usart3 {
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resets = <&rcc USART3_R>;
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};
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&uart4 {
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resets = <&rcc UART4_R>;
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};
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&uart5 {
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resets = <&rcc UART5_R>;
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};
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&usart6 {
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resets = <&rcc USART6_R>;
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};
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&uart7 {
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resets = <&rcc UART7_R>;
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};
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&uart8{
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resets = <&rcc UART8_R>;
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};
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&usbotg_hs {
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compatible = "st,stm32mp1-hsotg", "snps,dwc2";
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};
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