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ARM: DT: remove redundant DT related code

Michal Simek linux-arm-kernel 1 version New

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Cover letter [PATCH 0/5] ARM: DT: remove redundant DT related code
Quoted 9 lines · Sudeep KarkadaNagesha

From: Sudeep KarkadaNagesha <[email protected]>

Hi,

As part of my changes to remove duplicate code for parsing cpu nodes in the device tree, I found few unnecessary code mostly around smp_init_cpus. Most of the ARM Cortex A9 based platforms use SCU to get the number of cpus while many others depend on the device tree.

Quoted 7 lines

Even on DT based platforms using SCU, they can be made to depend on DT to cpu count simplifying smp_init_cpus. In fact arm_dt_init_cpu_maps called before smp_init_cpus, already does the device tree parsing, validating nr_cpu_ids and setting the cpu_possible_mask appropriately.

However this series targets only the platforms using DT for cpu count (i.e. not using SCU)

Just a note. Zynq is using SCU to get cpu count not DT.

Thanks,
Michal

Signature · 14 lines
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform


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