From: monstr@monstr.eu (Michal Simek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/5] ARM: DT: remove redundant DT related code
Date: Tue, 23 Jul 2013 14:31:22 +0200 [thread overview]
Message-ID: <51EE779A.8000205@monstr.eu> (raw)
In-Reply-To: <1374579164-30255-1-git-send-email-Sudeep.KarkadaNagesha@arm.com>
On 07/23/2013 01:32 PM, Sudeep KarkadaNagesha wrote:
> From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
>
> 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.
>
> 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
--
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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next prev parent reply other threads:[~2013-07-23 12:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-23 11:32 [PATCH 0/5] ARM: DT: remove redundant DT related code Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 1/5] ARM: keystone: remove redundant smp_init_cpus definition Sudeep KarkadaNagesha
2013-07-23 13:26 ` Santosh Shilimkar
2013-07-23 11:32 ` [PATCH 2/5] ARM: vexpress: remove redundant vexpress_dt_cpus_num to get cpu count Sudeep KarkadaNagesha
2013-08-09 9:25 ` Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 3/5] ARM: mach-mvebu: remove redundant DT parsing and validation Sudeep KarkadaNagesha
2013-08-08 14:54 ` Sudeep KarkadaNagesha
2013-08-08 15:19 ` Gregory CLEMENT
2013-08-08 15:50 ` Jason Cooper
2013-08-09 13:11 ` Jason Cooper
2013-07-23 11:32 ` [PATCH 4/5] ARM: highbank: remove redundant smp_init_cpus definition Sudeep KarkadaNagesha
2013-07-23 15:03 ` Rob Herring
2013-07-23 15:34 ` Sudeep KarkadaNagesha
2013-07-23 11:32 ` [PATCH 5/5] ARM: zynq: remove unnecessary setting of cpu_present_mask Sudeep KarkadaNagesha
2013-07-23 12:31 ` Michal Simek [this message]
2013-07-23 12:36 ` [PATCH 0/5] ARM: DT: remove redundant DT related code Sudeep KarkadaNagesha
2013-07-23 19:45 ` Nicolas Pitre
2013-07-24 10:48 ` Sudeep KarkadaNagesha
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