From: Vineet Gupta <vineet.gupta1@synopsys.com>
To: <linux-snps-arc@lists.infradead.org>
Cc: <linux-kernel@vger.kernel.org>, <eugeniy.paltsev@synopsys.com>,
<robh@kernel.org>, Vineet Gupta <vineet.gupta1@synopsys.com>
Subject: [PATCH] ARC: [hsdk] Make it easier to add PAE40 region to DTB
Date: Tue, 2 Apr 2019 12:18:03 -0700 [thread overview]
Message-ID: <1554232683-8173-1-git-send-email-vgupta@synopsys.com> (raw)
1. Bump top level address-cells/size-cells nodes to 2 (to ensure all
down stream addresses are 64-bits, unless explicitly specified
otherwise (in "soc" bus with all peripherals)
2. "memory" also specified with address/size 2
3. Add a commented reference for PAE40 region beyond 4GB physical
address space
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/arc/boot/dts/hsdk.dts | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 69bc1c9e8e50..7425bb0f2d1b 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -18,8 +18,8 @@
model = "snps,hsdk";
compatible = "snps,hsdk";
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
chosen {
bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
@@ -105,7 +105,7 @@
#size-cells = <1>;
interrupt-parent = <&idu_intc>;
- ranges = <0x00000000 0xf0000000 0x10000000>;
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
cgu_rst: reset-controller@8a0 {
compatible = "snps,hsdk-reset";
@@ -269,9 +269,10 @@
};
memory@80000000 {
- #address-cells = <1>;
- #size-cells = <1>;
+ #address-cells = <2>;
+ #size-cells = <2>;
device_type = "memory";
- reg = <0x80000000 0x40000000>; /* 1 GiB */
+ reg = <0x0 0x80000000 0x0 0x40000000>; /* 1 GB lowmem */
+ /* 0x1 0x00000000 0x0 0x40000000>; 1 GB highmem */
};
};
--
2.7.4
next reply other threads:[~2019-04-02 19:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-02 19:18 Vineet Gupta [this message]
2019-04-03 16:34 ` [PATCH] ARC: [hsdk] Make it easier to add PAE40 region to DTB Eugeniy Paltsev
2019-04-03 16:44 ` Vineet Gupta
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