linux-kernel - Memory and IO space Enabling different in x86 and ARM64

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Message-ID: <8520D5D51A55D047800579B094147198258B9376@XAP-PVEXMBX01.xlnx.xilinx.com>
Date:	Fri, 15 Jul 2016 08:29:49 +0000
From:	Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Liviu.Dudau@....com" <Liviu.Dudau@....com>,
	nofooter <nofooter@...inx.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Arnd Bergmann <arnd@...db.de>
Subject: Memory and IO space Enabling different in x86 and ARM64

Hi,

I observe that memory and IO space are enabled by BIOS in x86.

In ARM64 we need to call pci_enable_device form End Point to enable these resources.

Why the resource enablement is different in x86 and ARM64 ?

Please correct me if my observation is wrong.

Thanks & Regards,
Bharat

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