From: Suman Anna <s-anna@ti.com>
To: Tero Kristo <t-kristo@ti.com>, Nishanth Menon <nm@ti.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/4] arm64: dts: ti: k3-am65-mcu: Add the MCU RAM node
Date: Wed, 5 Jun 2019 11:34:32 -0500 [thread overview]
Message-ID: <20190605163434.23173-3-s-anna@ti.com> (raw)
In-Reply-To: <20190605163434.23173-1-s-anna@ti.com>
Add the on-chip SRAM present within the MCU domain as a mmio-sram node.
The K3 AM65x SoCs have 512 KB of such memory. Any specific memory range
within this RAM needed by a software module ought to be reserved using
an appropriate child node.
Signed-off-by: Suman Anna <s-anna@ti.com>
---
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 6f7d2b316ded..afc29eaa2638 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -17,6 +17,14 @@
power-domains = <&k3_pds 149>;
};
+ mcu_ram: sram@41c00000 {
+ compatible = "mmio-sram";
+ reg = <0x00 0x41c00000 0x00 0x80000>;
+ ranges = <0x0 0x00 0x41c00000 0x80000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
+
mcu_i2c0: i2c@40b00000 {
compatible = "ti,am654-i2c", "ti,omap4-i2c";
reg = <0x0 0x40b00000 0x0 0x100>;
--
2.21.0
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next prev parent reply other threads:[~2019-06-05 16:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-05 16:34 [PATCH 0/4] Add MCU SRAM nodes for TI K3 SoCs Suman Anna
2019-06-05 16:34 ` [PATCH 1/4] arm64: dts: ti: k3-am65: Add MCU SRAM ranges in interconnect nodes Suman Anna
2019-06-05 16:34 ` Suman Anna [this message]
2019-06-05 16:34 ` [PATCH 3/4] arm64: dts: ti: k3-j721e: Add the MCU SRAM node Suman Anna
2019-06-18 14:43 ` Tero Kristo
2019-06-05 16:34 ` [PATCH 4/4] arm64: dts: ti: k3-am65: Add R5F ranges in interconnect nodes Suman Anna
2019-06-05 16:53 ` [PATCH 0/4] Add MCU SRAM nodes for TI K3 SoCs Andrew F. Davis
2019-06-05 17:01 ` Suman Anna
2019-06-06 13:51 ` Andrew F. Davis
2019-06-17 14:49 ` Tero Kristo
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