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From: | Guenter Roeck |
Subject: | Re: [PATCH 1/5] arm64: zynqmp: Add firmware DT node |
Date: | Mon, 9 Dec 2019 06:32:56 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 |
On 12/8/19 11:48 PM, Edgar E. Iglesias wrote:
On Sun, Dec 08, 2019 at 11:19:33PM -0800, Guenter Roeck wrote:On 12/8/19 10:42 PM, Michal Simek wrote: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 <address@hidden> Add firmware DT node in ZynqMP device tree. This node uses bindings as per new firmware interface driver. Signed-off-by: Rajan Vaja <address@hidden> Signed-off-by: Michal Simek <address@hidden> Signed-off-by: Michael Tretter <address@hidden>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 shouldYes, QEMU doesn't support the Cortex-A53s along with the PMU MicroBlaze. My workaround when using upstream QEMU is a modified DT without the PMU firmware and with fixed-clock nodes.
I can't do that for my boot tests. Normally I would just disable ZYNQMP_FIRMWARE, but that is hard enabled with ARCH_ZYNQMP. I'll have to drop those tests, unfortunately, if the firmware driver is considered mandatory. Guenter
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