From: martin.blumenstingl@googlemail.com (Martin Blumenstingl)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH] ARM: dts: meson: add a node which describes the SRAM
Date: Wed, 12 Jul 2017 00:26:55 +0200 [thread overview]
Message-ID: <20170711222655.15859-1-martin.blumenstingl@googlemail.com> (raw)
All 32bit Meson SoCs contain 128KiB SRAM. This SRAM is used when
suspending the device (the the ARM Power Firmware on
Meson8/Meson8b/Meson8m2 saves the DDR settings there) and to boot the
secondary CPU cores.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
arch/arm/boot/dts/meson.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 4c27ca083afb..7e136991a4b9 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -244,5 +244,13 @@
interrupt-names = "macirq";
status = "disabled";
};
+
+ ahb_sram: sram at d9000000 {
+ compatible = "mmio-sram";
+ reg = <0xd9000000 0x20000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0xd9000000 0x20000>;
+ };
};
}; /* end of / */
--
2.13.2
next reply other threads:[~2017-07-11 22:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-11 22:26 Martin Blumenstingl [this message]
2017-07-28 16:48 ` Kevin Hilman
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