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From: Michal Simek <michal.simek@xilinx.com>
To: Guenter Roeck <linux@roeck-us.net>,
	Michael Tretter <m.tretter@pengutronix.de>,
	Edgar Iglesias <edgari@xilinx.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
	Rajan Vaja <rajan.vaja@xilinx.com>,
	michal.simek@xilinx.com, qemu-devel@nongnu.org,
	Rajan Vaja <rajanv@xilinx.com>,
	robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/5] arm64: zynqmp: Add firmware DT node
Date: Mon, 9 Dec 2019 07:42:43 +0100	[thread overview]
Message-ID: <dbba2a25-cbf7-60f4-99f7-056512e28d00@xilinx.com> (raw)
In-Reply-To: <20191208223814.GA21260@roeck-us.net>

Hi, +Edgar


On 08. 12. 19 23:38, Guenter Roeck wrote:
> On Fri, Oct 18, 2019 at 06:07:31PM +0200, Michael Tretter wrote:
>> From: Rajan Vaja <rajan.vaja@xilinx.com>
>>
>> Add firmware DT node in ZynqMP device tree. This node
>> uses bindings as per new firmware interface driver.
>>
>> Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
>> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
>> Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
> 
> With this patch applied in the mainline kernel, the qemu xlnx-zcu102
> emulation crashes (see below). Any idea what it might take to get
> qemu back to working ?

Driver talks through ATF to PMU unit(microblaze). I don't think A53+MB
concept is working with mainline qemu. But crash is too hard. It should
be no response from PMU and then this panic.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/firmware/xilinx/zynqmp.c?h=v5.5-rc1#n728

Edgar: can you please comment this?

Thanks,
Michal


  reply	other threads:[~2019-12-09  6:43 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191018160735.15658-1-m.tretter@pengutronix.de>
     [not found] ` <20191018160735.15658-2-m.tretter@pengutronix.de>
2019-12-08 22:38   ` [PATCH 1/5] arm64: zynqmp: Add firmware DT node Guenter Roeck
2019-12-09  6:42     ` Michal Simek [this message]
2019-12-09  7:19       ` Guenter Roeck
2019-12-09  7:48         ` Edgar E. Iglesias
2019-12-09  8:33           ` Michal Simek
2019-12-09 14:32           ` Guenter Roeck
2019-12-09 15:02             ` Michal Simek
2019-12-15  5:28               ` Guenter Roeck
2019-12-16  6:28                 ` Michal Simek
2019-12-09  8:36         ` Michal Simek

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