From: Suman Anna <s-anna@ti.com>
To: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Russell King <linux@armlinux.org.uk>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Andrew Davis <afd@ti.com>, Suman Anna <s-anna@ti.com>
Subject: [PATCH 3/5] ARM: dts: keystone-k2hk: Add PSC reset controller node
Date: Mon, 9 Jan 2017 13:43:56 -0600 [thread overview]
Message-ID: <20170109194358.27271-4-s-anna@ti.com> (raw)
In-Reply-To: <20170109194358.27271-1-s-anna@ti.com>
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 66AK2H SoCs.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
---
arch/arm/boot/dts/keystone-k2hk.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm/boot/dts/keystone-k2hk.dtsi b/arch/arm/boot/dts/keystone-k2hk.dtsi
index e0780f111537..a833db72fc61 100644
--- a/arch/arm/boot/dts/keystone-k2hk.dtsi
+++ b/arch/arm/boot/dts/keystone-k2hk.dtsi
@@ -8,6 +8,8 @@
* published by the Free Software Foundation.
*/
+#include <dt-bindings/reset/ti-syscon.h>
+
/ {
compatible = "ti,k2hk", "ti,keystone";
model = "Texas Instruments Keystone 2 Kepler/Hawking SoC";
@@ -58,6 +60,24 @@
};
};
+ psc: power-sleep-controller@02350000 {
+ pscrst: psc-reset-controller {
+ compatible = "ti,k2hk-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 */
+ 0xa4c 8 0xa4c 8 0x84c 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 4: dsp4 */
+ 0xa50 8 0xa50 8 0x850 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 5: dsp5 */
+ 0xa54 8 0xa54 8 0x854 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 6: dsp6 */
+ 0xa58 8 0xa58 8 0x858 8 (ASSERT_CLEAR | DEASSERT_SET | STATUS_CLEAR) /* 7: dsp7 */
+ >;
+ };
+ };
+
dspgpio0: keystone_dsp_gpio@02620240 {
compatible = "ti,keystone-dsp-gpio";
gpio-controller;
--
2.10.2
next prev parent reply other threads:[~2017-01-09 19:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-09 19:43 [PATCH 0/5] Reset Controller Nodes for TI Keystone platforms Suman Anna
2017-01-09 19:43 ` [PATCH 1/5] ARM: Keystone: Enable ARCH_HAS_RESET_CONTROLLER Suman Anna
2017-01-09 19:43 ` [PATCH 2/5] ARM: dts: keystone: Add PSC node Suman Anna
2017-01-09 19:43 ` Suman Anna [this message]
2017-01-09 19:43 ` [PATCH 4/5] ARM: dts: keystone-k2l: Add PSC reset controller node Suman Anna
2017-01-09 19:43 ` [PATCH 5/5] ARM: dts: keystone-k2e: " Suman Anna
2017-01-09 20:08 ` [PATCH 0/5] Reset Controller Nodes for TI Keystone platforms Santosh Shilimkar
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