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Re: [PATCH v2 0/4] Expose GT CNTFRQ as a CPU property to support AST2600


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2 0/4] Expose GT CNTFRQ as a CPU property to support AST2600
Date: Tue, 3 Dec 2019 07:05:38 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2

On 12/3/19 5:14 AM, Andrew Jeffery wrote:
Hello,

This is a v2 of the belated follow-up from a few of my earlier attempts to fix
up the ARM generic timer for correct behaviour on the ASPEED AST2600 SoC. The
AST2600 clocks the generic timer at the rate of HPLL, which is configured to
1125MHz.  This is significantly quicker than the currently hard-coded generic
timer rate of 62.5MHz and so we see "sticky" behaviour in the guest.

Glad you fixed this! I hit the same problem with the Raspi4.




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