Based on kernel version 5.6.13
. Page generated on 2020-05-15 16:46 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | Broadcom Kona Family CPU Enable Method -------------------------------------- This binding defines the enable method used for starting secondary CPUs in the following Broadcom SoCs: BCM23550 The enable method is specified by defining the following required properties in the "cpu" device tree node: - enable-method = "brcm,bcm23550"; - secondary-boot-reg = <...>; The secondary-boot-reg property is a u32 value that specifies the physical address of the register used to request the ROM holding pen code release a secondary CPU. The value written to the register is formed by encoding the target CPU id into the low bits of the physical start address it should jump to. Example: cpus { #address-cells = <1>; #size-cells = <0>; cpu0: cpu@0 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <0>; }; cpu1: cpu@1 { device_type = "cpu"; compatible = "arm,cortex-a9"; reg = <1>; enable-method = "brcm,bcm23550"; secondary-boot-reg = <0x3500417c>; }; }; |