From mboxrd@z Thu Jan 1 00:00:00 1970 From: s-anna@ti.com (Suman Anna) Date: Wed, 11 Jan 2017 19:48:42 -0600 Subject: [PATCH v2 4/5] ARM: dts: keystone-k2l: Add PSC reset controller node In-Reply-To: <20170112014843.19569-1-s-anna@ti.com> References: <20170112014843.19569-1-s-anna@ti.com> Message-ID: <20170112014843.19569-5-s-anna@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The Power Sleep Controller (PSC) module contains specific memory-mapped registers that can be used to perform reset management using specific bits for the DSPs available on the SoC. The PSC is defined using a syscon node, and the reset functionality is defined using a child syscon reset controller node. Add this syscon reset controller node as well as the reset control data for the resets it supports for the 66AK2L SoCs. Signed-off-by: Andrew F. Davis Signed-off-by: Suman Anna --- v2: change reset node name from psc-reset-controller to reset-controller arch/arm/boot/dts/keystone-k2l.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/keystone-k2l.dtsi b/arch/arm/boot/dts/keystone-k2l.dtsi index b58015737a35..15392d32c572 100644 --- a/arch/arm/boot/dts/keystone-k2l.dtsi +++ b/arch/arm/boot/dts/keystone-k2l.dtsi @@ -8,6 +8,8 @@ * published by the Free Software Foundation. */ +#include + / { compatible = "ti,k2l", "ti,keystone"; model = "Texas Instruments Keystone 2 Lamarr SoC"; @@ -216,6 +218,20 @@ }; }; + psc: power-sleep-controller at 02350000 { + pscrst: reset-controller { + compatible = "ti,k2l-pscrst", "ti,syscon-reset"; + #reset-cells = <1>; + + ti,reset-bits = < + 0xa3c 8 0xa3c 8 0x83c 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 0: dsp0 */ + 0xa40 8 0xa40 8 0x840 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 1: dsp1 */ + 0xa44 8 0xa44 8 0x844 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 2: dsp2 */ + 0xa48 8 0xa48 8 0x848 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 3: dsp3 */ + >; + }; + }; + dspgpio0: keystone_dsp_gpio at 02620240 { compatible = "ti,keystone-dsp-gpio"; gpio-controller; -- 2.10.2