From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Thu, 25 Feb 2016 10:25:49 -0500 Subject: [U-Boot] [U-Boot, 09/10] arm: am437x: cm-t43: set MPU and CORE voltages on boot In-Reply-To: <1455902390-5387-10-git-send-email-nikita@compulab.co.il> References: <1455902390-5387-10-git-send-email-nikita@compulab.co.il> Message-ID: <20160225152549.GX23166@bill-the-cat> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Fri, Feb 19, 2016 at 07:19:49PM +0200, Nikita Kiryanov wrote: > During boot, U-Boot raises the CPU frequency but the CORE and MPU regulators > are not updated. This is not a problem in cold boot since the default values > that the pmic outputs are correct, but if Linux were to switch the module to a > low power OPP, the new voltage values will be retained after a reboot and the > module will likely hang once U-Boot raises the CPU frequency back up. > > Set both CORE and MPU regulators to to 1.1V on boot. > > Cc: Tom Rini > Cc: Albert Aribaud > Cc: Igor Grinberg > Signed-off-by: Nikita Kiryanov > Reviewed-by: Tom Rini Applied to u-boot/master, thanks! -- Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: