Re: [PATCH] ARM: dts: turris-omnia: fix hardware buffer management
From: Marek Behún <kabel@kernel.org>
Date: 2021-02-17 16:28:33
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On Wed, 17 Feb 2021 17:22:17 +0100 Andrew Lunn [off-list ref] wrote:
On Wed, Feb 17, 2021 at 03:30:38PM +0000, Rui Salvaterra wrote:quoted
Hardware buffer management has never worked on the Turris Omnia, as the required MBus window hadn't been reserved. Fix thusly.Hi Rui I don't know all the details for the MBus Windows... Can this be set once in armada-385.dtsi ? Did you check the other dts files. Do any others have the same problem? Andrew
armada-38x.dtsi defines only ranges = <0 MBUS_ID(0xf0, 0x01) 0 0x100000>; for internal-regs. It probably depends on how the mbus driver works. If the mbus driver maps every window defined in ranges, regardless whether they are used, then we do not want to put all windows in .dtsi file. Marek _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel