Hi Daniel, Thanks for the reminder. I found more errornous line-breaks in other patches... I'll find a way to fix that.
Best Regards, Weijie On Thu, 2022-08-04 at 10:37 +0200, Daniel Golle wrote: > Hi Weijie, > > happy to see this series posted! > Trying to apply it unfortunately fails due to errornous line-breaks, > supposedly inserted by your MUA, see below. > > I didn't go beyond the first patch and it'd be nice if you report the > whole series without the wrong line-breaks. > > Cheers > > > Daniel > > > On Thu, Aug 04, 2022 at 11:34:28AM +0800, Weijie Gao wrote: > > This patch adds basic support for MediaTek MT7986 SoC. > > This include the file that will initialize the SoC after boot and > > its > > device tree. > > > > Signed-off-by: Weijie Gao <weijie....@mediatek.com> > > --- > > arch/arm/dts/mt7986-u-boot.dtsi | 33 ++ > > arch/arm/dts/mt7986.dtsi | 341 > > ++++++++++++++++++ > > arch/arm/mach-mediatek/Kconfig | 11 + > > arch/arm/mach-mediatek/Makefile | 1 + > > arch/arm/mach-mediatek/mt7986/Makefile | 4 + > > arch/arm/mach-mediatek/mt7986/init.c | 53 +++ > > arch/arm/mach-mediatek/mt7986/lowlevel_init.S | 30 ++ > > 7 files changed, 473 insertions(+) > > create mode 100644 arch/arm/dts/mt7986-u-boot.dtsi > > create mode 100644 arch/arm/dts/mt7986.dtsi > > create mode 100644 arch/arm/mach-mediatek/mt7986/Makefile > > create mode 100644 arch/arm/mach-mediatek/mt7986/init.c > > create mode 100644 arch/arm/mach-mediatek/mt7986/lowlevel_init.S > > > > diff --git a/arch/arm/dts/mt7986-u-boot.dtsi > > b/arch/arm/dts/mt7986-u-boot.dtsi > > The above two lines should be a single line. > > > new file mode 100644 > > index 0000000000..95671f8afa > > --- /dev/null > > +++ b/arch/arm/dts/mt7986-u-boot.dtsi > > @@ -0,0 +1,33 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Copyright (c) 2022 MediaTek Inc. > > + * Author: Sam Shih <sam.s...@mediatek.com> > > + */ > > + > > +&topckgen { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&pericfg { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&apmixedsys { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&timer0 { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&uart0 { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&snand { > > + u-boot,dm-pre-reloc; > > +}; > > + > > +&pinctrl { > > + u-boot,dm-pre-reloc; > > +}; > > diff --git a/arch/arm/dts/mt7986.dtsi b/arch/arm/dts/mt7986.dtsi > > new file mode 100644 > > index 0000000000..f235bd8b8c > > --- /dev/null > > +++ b/arch/arm/dts/mt7986.dtsi > > @@ -0,0 +1,341 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Copyright (c) 2022 MediaTek Inc. > > + * Author: Sam Shih <sam.s...@mediatek.com> > > + */ > > + > > +#include <dt-bindings/interrupt-controller/irq.h> > > +#include <dt-bindings/interrupt-controller/arm-gic.h> > > +#include <dt-bindings/phy/phy.h> > > +#include <dt-bindings/clock/mt7986-clk.h> > > +#include <dt-bindings/reset/mt7629-reset.h> > > +#include <dt-bindings/pinctrl/mt65xx.h> > > + > > +/ { > > + compatible = "mediatek,mt7986"; > > + interrupt-parent = <&gic>; > > + #address-cells = <1>; > > + #size-cells = <1>; > > + > > + config { > > + u-boot,mmc-env-partition = "u-boot-env"; > > + }; > > + > > + cpus { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + cpu0: cpu@0 { > > + device_type = "cpu"; > > + compatible = "arm,cortex-a53"; > > + reg = <0x0>; > > + }; > > + cpu1: cpu@1 { > > + device_type = "cpu"; > > + compatible = "arm,cortex-a53"; > > + reg = <0x1>; > > + }; > > + cpu2: cpu@2 { > > + device_type = "cpu"; > > + compatible = "arm,cortex-a53"; > > + reg = <0x1>; > > + }; > > + cpu3: cpu@3 { > > + device_type = "cpu"; > > + compatible = "arm,cortex-a53"; > > + reg = <0x1>; > > + }; > > + }; > > + > > + dummy_clk: dummy12m { > > + compatible = "fixed-clock"; > > + clock-frequency = <12000000>; > > + #clock-cells = <0>; > > + /* must need this line, or uart uanable to get > > dummy_clk */ > > + u-boot,dm-pre-reloc; > > + }; > > + > > + timer { > > + compatible = "arm,armv8-timer"; > > + interrupt-parent = <&gic>; > > + clock-frequency = <13000000>; > > + interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, > > + <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>, > > + <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>, > > + <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>; > > + arm,cpu-registers-not-fw-configured; > > + }; > > + > > + timer0: timer@10008000 { > > + compatible = "mediatek,mt7986-timer"; > > + reg = <0x10008000 0x1000>; > > + interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&infracfg CK_INFRA_CK_F26M>; > > + clock-names = "gpt-clk"; > > + u-boot,dm-pre-reloc; > > + }; > > + > > + watchdog: watchdog@1001c000 { > > + compatible = "mediatek,mt7986-wdt"; > > + reg = <0x1001c000 0x1000>; > > + interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>; > > + #reset-cells = <1>; > > + status = "disabled"; > > + }; > > + > > + gic: interrupt-controller@c000000 { > > + compatible = "arm,gic-v3"; > > + #interrupt-cells = <3>; > > + interrupt-parent = <&gic>; > > + interrupt-controller; > > + reg = <0x0c000000 0x40000>, /* GICD */ > > + <0x0c080000 0x200000>; /* GICR */ > > + > > + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>; > > + }; > > + > > + fixed_plls: apmixedsys@1001E000 { > > + compatible = "mediatek,mt7986-fixed-plls"; > > + reg = <0x1001E000 0x1000>; > > + #clock-cells = <1>; > > + }; > > + > > + topckgen: topckgen@1001B000 { > > + compatible = "mediatek,mt7986-topckgen"; > > + reg = <0x1001B000 0x1000>; > > + clock-parent = <&fixed_plls>; > > + #clock-cells = <1>; > > + }; > > + > > + infracfg_ao: infracfg_ao@10001000 { > > + compatible = "mediatek,mt7986-infracfg_ao"; > > + reg = <0x10001000 0x68>; > > + clock-parent = <&infracfg>; > > + #clock-cells = <1>; > > + }; > > + > > + infracfg: infracfg@10001040 { > > + compatible = "mediatek,mt7986-infracfg"; > > + reg = <0x10001000 0x1000>; > > + clock-parent = <&topckgen>; > > + #clock-cells = <1>; > > + }; > > + > > + pinctrl: pinctrl@1001f000 { > > + compatible = "mediatek,mt7986-pinctrl"; > > + reg = <0x1001f000 0x1000>, > > + <0x11c30000 0x1000>, > > + <0x11c40000 0x1000>, > > + <0x11e20000 0x1000>, > > + <0x11e30000 0x1000>, > > + <0x11f00000 0x1000>, > > + <0x11f10000 0x1000>, > > + <0x1000b000 0x1000>; > > + reg-names = "gpio_base", "iocfg_rt_base", > > "iocfg_rb_base", > > + "iocfg_lt_base", "iocfg_lb_base", > > "iocfg_tr_base", > > + "iocfg_tl_base", "eint"; > > + gpio: gpio-controller { > > + gpio-controller; > > + #gpio-cells = <2>; > > + }; > > + }; > > + > > + pwm: pwm@10048000 { > > + compatible = "mediatek,mt7986-pwm"; > > + reg = <0x10048000 0x1000>; > > + #clock-cells = <1>; > > + #pwm-cells = <2>; > > + interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&infracfg CK_INFRA_PWM>, > > + <&infracfg_ao CK_INFRA_PWM_BSEL>, > > + <&infracfg_ao CK_INFRA_PWM1_CK>, > > + <&infracfg_ao CK_INFRA_PWM2_CK>; > > + assigned-clocks = <&topckgen CK_TOP_PWM_SEL>, > > + <&infracfg CK_INFRA_PWM_BSEL>, > > + <&infracfg CK_INFRA_PWM1_SEL>, > > + <&infracfg CK_INFRA_PWM2_SEL>; > > + assigned-clock-parents = <&topckgen > > CK_TOP_CB_M_D4>, > > + <&infracfg CK_INFRA_PWM>, > > + <&infracfg CK_INFRA_PWM>, > > + <&infracfg CK_INFRA_PWM>; > > + clock-names = "top", "main", "pwm1", "pwm2"; > > + status = "disabled"; > > + u-boot,dm-pre-reloc; > > + }; > > + > > + uart0: serial@11002000 { > > + compatible = "mediatek,hsuart"; > > + reg = <0x11002000 0x400>; > > + interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&infracfg_ao CK_INFRA_UART0_CK>; > > + assigned-clocks = <&topckgen CK_TOP_UART_SEL>, > > + <&infracfg_ao > > CK_INFRA_UART0_SEL>; > > + assigned-clock-parents = <&topckgen > > CK_TOP_CB_CKSQ_40M>, > > + <&infracfg > > CK_INFRA_UART>; > > + mediatek,force-highspeed; > > + status = "disabled"; > > + u-boot,dm-pre-reloc; > > + }; > > + > > + uart1: serial@11003000 { > > + compatible = "mediatek,hsuart"; > > + reg = <0x11003000 0x400>; > > + interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&infracfg_ao CK_INFRA_UART1_CK>; > > + assigned-clocks = <&infracfg CK_INFRA_UART1_SEL>; > > + assigned-clock-parents = <&infracfg > > CK_INFRA_CK_F26M>; > > + mediatek,force-highspeed; > > + status = "disabled"; > > + }; > > + > > + uart2: serial@11004000 { > > + compatible = "mediatek,hsuart"; > > + reg = <0x11004000 0x400>; > > + interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&infracfg_ao CK_INFRA_UART2_CK>; > > + assigned-clocks = <&infracfg CK_INFRA_UART2_SEL>; > > + assigned-clock-parents = <&infracfg > > CK_INFRA_CK_F26M>; > > + mediatek,force-highspeed; > > + status = "disabled"; > > + }; > > + > > + snand: snand@11005000 { > > + compatible = "mediatek,mt7986-snand"; > > + reg = <0x11005000 0x1000>, > > + <0x11006000 0x1000>; > > + reg-names = "nfi", "ecc"; > > + clocks = <&infracfg_ao CK_INFRA_SPINFI1_CK>, > > + <&infracfg_ao CK_INFRA_NFI1_CK>, > > + <&infracfg_ao CK_INFRA_NFI_HCK_CK>; > > + clock-names = "pad_clk", "nfi_clk", "nfi_hclk"; > > + assigned-clocks = <&topckgen CK_TOP_SPINFI_SEL>, > > + <&topckgen CK_TOP_NFI1X_SEL>; > > + assigned-clock-parents = <&topckgen > > CK_TOP_CB_M_D8>, > > + <&topckgen > > CK_TOP_CB_M_D8>; > > + status = "disabled"; > > + }; > > + > > + ethsys: syscon@15000000 { > > + compatible = "mediatek,mt7986-ethsys", "syscon"; > > + reg = <0x15000000 0x1000>; > > + clock-parent = <&topckgen>; > > + #clock-cells = <1>; > > + #reset-cells = <1>; > > + }; > > + > > + eth: ethernet@15100000 { > > + compatible = "mediatek,mt7986-eth", "syscon"; > > + reg = <0x15100000 0x20000>; > > + resets = <ðsys ETHSYS_FE_RST>; > > + reset-names = "fe"; > > + mediatek,ethsys = <ðsys>; > > + mediatek,sgmiisys = <&sgmiisys0>; > > + #address-cells = <1>; > > + #size-cells = <0>; > > + status = "disabled"; > > + }; > > + > > + sgmiisys0: syscon@10060000 { > > + compatible = "mediatek,mt7986-sgmiisys", "syscon"; > > + reg = <0x10060000 0x1000>; > > + #clock-cells = <1>; > > + }; > > + > > + sgmiisys1: syscon@10070000 { > > + compatible = "mediatek,mt7986-sgmiisys", "syscon"; > > + reg = <0x10070000 0x1000>; > > + #clock-cells = <1>; > > + }; > > + > > + spi0: spi@1100a000 { > > + compatible = "mediatek,ipm-spi"; > > + reg = <0x1100a000 0x100>; > > + clocks = <&infracfg_ao CK_INFRA_SPI0_CK>, > > + <&topckgen CK_TOP_SPI_SEL>; > > + assigned-clocks = <&topckgen CK_TOP_SPI_SEL>, > > + <&infracfg CK_INFRA_SPI0_SEL>; > > + assigned-clock-parents = <&topckgen > > CK_TOP_CB_M_D2>, > > + <&topckgen > > CK_INFRA_ISPI0>; > > + clock-names = "sel-clk", "spi-clk"; > > + interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>; > > + status = "disabled"; > > + }; > > + > > + spi1: spi@1100b000 { > > + compatible = "mediatek,ipm-spi"; > > + reg = <0x1100b000 0x100>; > > + interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>; > > + status = "disabled"; > > + }; > > + > > + mmc0: mmc@11230000 { > > + compatible = "mediatek,mt7986-mmc"; > > + reg = <0x11230000 0x1000>, > > + <0x11C20000 0x1000>; > > + interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>; > > + clocks = <&topckgen CK_TOP_EMMC_416M>, > > + <&topckgen CK_TOP_EMMC_250M>, > > + <&infracfg_ao CK_INFRA_MSDC_CK>; > > + assigned-clocks = <&topckgen > > CK_TOP_EMMC_416M_SEL>, > > + <&topckgen > > CK_TOP_EMMC_250M_SEL>; > > + assigned-clock-parents = <&topckgen > > CK_TOP_CB_M_416M>, > > + <&topckgen > > CK_TOP_NET1_D5_D2>; > > + clock-names = "source", "hclk", "source_cg"; > > + status = "disabled"; > > + }; > > + > > + xhci: xhci@11200000 { > > + compatible = "mediatek,mt7986-xhci", > > + "mediatek,mtk-xhci"; > > + reg = <0x11200000 0x2e00>, > > + <0x11203e00 0x0100>; > > + reg-names = "mac", "ippc"; > > + interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>; > > + phys = <&u2port0 PHY_TYPE_USB2>, > > + <&u3port0 PHY_TYPE_USB3>, > > + <&u2port1 PHY_TYPE_USB2>; > > + clocks = <&dummy_clk>, > > + <&dummy_clk>, > > + <&dummy_clk>, > > + <&dummy_clk>, > > + <&dummy_clk>; > > + clock-names = "sys_ck", > > + "xhci_ck", > > + "ref_ck", > > + "mcu_ck", > > + "dma_ck"; > > + tpl-support; > > + status = "okay"; > > + }; > > + > > + usbtphy: usb-phy@11e10000 { > > + compatible = "mediatek,mt7986", > > + "mediatek,generic-tphy-v2"; > > + #address-cells = <1>; > > + #size-cells = <1>; > > + status = "okay"; > > + > > + u2port0: usb-phy@11e10000 { > > + reg = <0x11e10000 0x700>; > > + clocks = <&dummy_clk>; > > + clock-names = "ref"; > > + #phy-cells = <1>; > > + status = "okay"; > > + }; > > + > > + u3port0: usb-phy@11e10700 { > > + reg = <0x11e10700 0x900>; > > + clocks = <&dummy_clk>; > > + clock-names = "ref"; > > + #phy-cells = <1>; > > + status = "okay"; > > + }; > > + > > + u2port1: usb-phy@11e11000 { > > + reg = <0x11e11000 0x700>; > > + clocks = <&dummy_clk>; > > + clock-names = "ref"; > > + #phy-cells = <1>; > > + status = "okay"; > > + }; > > + }; > > +}; > > diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach- > > mediatek/Kconfig > > index f79a5c62cd..e059a013db 100644 > > --- a/arch/arm/mach-mediatek/Kconfig > > +++ b/arch/arm/mach-mediatek/Kconfig > > @@ -40,6 +40,14 @@ config TARGET_MT7629 > > including DDR3, crypto engine, 3x3 11n/ac Wi-Fi, Gigabit > > Ethernet, > > switch, USB3.0, PCIe, UART, SPI, I2C and PWM. > > > > +config TARGET_MT7986 > > + bool "MediaTek MT7986 SoC" > > + select ARM64 > > + help > > + The MediaTek MT7986 is a ARM64-based SoC with a quad- > > core Cortex-A53. > > + including UART, SPI, SPI flash, USB3.0, MMC, NAND, SNFI, > > PWM, PCIe, > > + Gigabit Ethernet, I2C, built-in 4x4 Wi-Fi, and PCIe. > > + > > config TARGET_MT8183 > > bool "MediaTek MT8183 SoC" > > select ARM64 > > @@ -84,6 +92,7 @@ config SYS_BOARD > > default "mt7622" if TARGET_MT7622 > > default "mt7623" if TARGET_MT7623 > > default "mt7629" if TARGET_MT7629 > > + default "mt7986" if TARGET_MT7986 > > default "mt8183" if TARGET_MT8183 > > default "mt8512" if TARGET_MT8512 > > default "mt8516" if TARGET_MT8516 > > @@ -99,6 +108,7 @@ config SYS_CONFIG_NAME > > default "mt7622" if TARGET_MT7622 > > default "mt7623" if TARGET_MT7623 > > default "mt7629" if TARGET_MT7629 > > + default "mt7986" if TARGET_MT7986 > > default "mt8183" if TARGET_MT8183 > > default "mt8512" if TARGET_MT8512 > > default "mt8516" if TARGET_MT8516 > > @@ -113,6 +123,7 @@ config MTK_BROM_HEADER_INFO > > string > > default "media=nor" if TARGET_MT8518 || TARGET_MT8512 || > > TARGET_MT7629 || > > TARGET_MT7622 > > Same here. > > > default "media=emmc" if TARGET_MT8516 || TARGET_MT8365 || > > TARGET_MT8183 > > + default "media=snand;nandinfo=2k+64" if TARGET_MT7986 > > default "lk=1" if TARGET_MT7623 > > > > endif > > diff --git a/arch/arm/mach-mediatek/Makefile > > b/arch/arm/mach-mediatek/Makefile > > And here. > > > index 0f5b0c16d2..fe5c3a837c 100644 > > --- a/arch/arm/mach-mediatek/Makefile > > +++ b/arch/arm/mach-mediatek/Makefile > > @@ -7,6 +7,7 @@ obj-$(CONFIG_MT8512) += mt8512/ > > obj-$(CONFIG_TARGET_MT7622) += mt7622/ > > obj-$(CONFIG_TARGET_MT7623) += mt7623/ > > obj-$(CONFIG_TARGET_MT7629) += mt7629/ > > +obj-$(CONFIG_TARGET_MT7986) += mt7986/ > > obj-$(CONFIG_TARGET_MT8183) += mt8183/ > > obj-$(CONFIG_TARGET_MT8516) += mt8516/ > > obj-$(CONFIG_TARGET_MT8518) += mt8518/ > > diff --git a/arch/arm/mach-mediatek/mt7986/Makefile > > b/arch/arm/mach-mediatek/mt7986/Makefile > > And here. > > > new file mode 100644 > > index 0000000000..007eb4a367 > > --- /dev/null > > +++ b/arch/arm/mach-mediatek/mt7986/Makefile > > @@ -0,0 +1,4 @@ > > +# SPDX-License-Identifier: GPL-2.0 > > + > > +obj-y += init.o > > +obj-y += lowlevel_init.o > > diff --git a/arch/arm/mach-mediatek/mt7986/init.c > > b/arch/arm/mach-mediatek/mt7986/init.c > > And here again. > > > new file mode 100644 > > index 0000000000..4884cbdc67 > > --- /dev/null > > +++ b/arch/arm/mach-mediatek/mt7986/init.c > > @@ -0,0 +1,53 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Copyright (C) 2022 MediaTek Inc. > > + * Author: Sam Shih <sam.s...@mediatek.com> > > + */ > > + > > +#include <fdtdec.h> > > +#include <asm/armv8/mmu.h> > > +#include <init.h> > > +#include <asm/system.h> > > +#include <asm/global_data.h> > > +#include <linux/sizes.h> > > + > > +DECLARE_GLOBAL_DATA_PTR; > > + > > +int print_cpuinfo(void) > > +{ > > + printf("CPU: MediaTek MT7986\n"); > > + return 0; > > +} > > + > > +int dram_init(void) > > +{ > > + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, > > SZ_2G); > > + > > + return 0; > > +} > > + > > +void reset_cpu(ulong addr) > > +{ > > + psci_system_reset(); > > +} > > + > > +static struct mm_region mt7986_mem_map[] = { > > + { > > + /* DDR */ > > + .virt = 0x40000000UL, > > + .phys = 0x40000000UL, > > + .size = 0x80000000UL, > > + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | > > PTE_BLOCK_OUTER_SHARE, > > + }, { > > + .virt = 0x00000000UL, > > + .phys = 0x00000000UL, > > + .size = 0x40000000UL, > > + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | > > + PTE_BLOCK_NON_SHARE | > > + PTE_BLOCK_PXN | PTE_BLOCK_UXN > > + }, { > > + 0, > > + } > > +}; > > + > > +struct mm_region *mem_map = mt7986_mem_map; > > diff --git a/arch/arm/mach-mediatek/mt7986/lowlevel_init.S > > b/arch/arm/mach-mediatek/mt7986/lowlevel_init.S > > And here. > > > new file mode 100644 > > index 0000000000..244d2c1385 > > --- /dev/null > > +++ b/arch/arm/mach-mediatek/mt7986/lowlevel_init.S > > @@ -0,0 +1,30 @@ > > +/* SPDX-License-Identifier: GPL-2.0 */ > > +/* > > + * Copyright (C) 2022 MediaTek Inc. > > + * Author: Sam Shih <sam.s...@mediatek.com> > > + */ > > + > > +/* > > + * Switch from AArch64 EL2 to AArch32 EL2 > > + * @param inputs: > > + * x0: argument, zero > > + * x1: machine nr > > + * x2: fdt address > > + * x3: input argument > > + * x4: kernel entry point > > + * @param outputs for secure firmware: > > + * x0: function id > > + * x1: kernel entry point > > + * x2: machine nr > > + * x3: fdt address > > +*/ > > + > > +.global armv8_el2_to_aarch32 > > +armv8_el2_to_aarch32: > > + mov x3, x2 > > + mov x2, x1 > > + mov x1, x4 > > + mov x4, #0 > > + ldr x0, =0x82000200 > > + SMC #0 > > + ret > > -- > > 2.17.1 > >