[PATCH 2/5] ARM: dts: am335x-boneblack: Enable 1GHz OPP for cpu
From: lukma@denx.de (Lukasz Majewski)
Date: 2017-03-06 16:01:51
Also in:
linux-devicetree, linux-omap, linux-pm
On Mon, 6 Mar 2017 09:23:39 -0600 Dave Gerlach [off-list ref] wrote:
Although all PG2.0 silicon may not support 1GHz OPP for the MPU, older Beaglebone Blacks may have PG2.0 silicon populated and these particular parts are guaranteed to support the OPP, so enable it for PG2.0 on am335x-boneblack only. Signed-off-by: Dave Gerlach <redacted>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
quoted hunk ↗ jump to hunk
--- arch/arm/boot/dts/am335x-boneblack.dts | 11 +++++++++++ 1 file changed, 11 insertions(+)diff --git a/arch/arm/boot/dts/am335x-boneblack.dtsb/arch/arm/boot/dts/am335x-boneblack.dts index 77273df1a028..935ed17d22e4 100644 --- a/arch/arm/boot/dts/am335x-boneblack.dts +++ b/arch/arm/boot/dts/am335x-boneblack.dts @@ -15,3 +15,14 @@ model = "TI AM335x BeagleBone Black"; compatible = "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx"; }; + +&cpu0_opp_table { + /* + * All PG 2.0 silicon may not support 1GHz but some of the early + * BeagleBone Blacks have PG 2.0 silicon which is guaranteed + * to support 1GHz OPP so enable it for PG 2.0 on this board. + */ + oppnitro at 1000000000 { + opp-supported-hw = <0x06 0x0100>; + }; +};
Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de