From: dinguyen@opensource.altera.com (dinguyen at opensource.altera.com)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: socfpga: enable qspi on the Cyclone5 devkit
Date: Tue, 18 Oct 2016 23:11:04 -0500 [thread overview]
Message-ID: <1476850264-25346-1-git-send-email-dinguyen@opensource.altera.com> (raw)
From: Dinh Nguyen <dinguyen@opensource.altera.com>
Enable the qspi controller on the devkit and add the flash chip.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
arch/arm/boot/dts/socfpga_cyclone5_socdk.dts | 32 ++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index 15e43f4..a0868e9 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -87,6 +87,38 @@
status = "okay";
};
+&qspi {
+ status = "okay";
+
+ flash0: n25q00 at 0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "n25q00";
+ reg = <0>; /* chip select */
+ spi-max-frequency = <100000000>;
+
+ cdns,page-size = <256>;
+ cdns,block-size = <16>;
+ cdns,read-delay = <4>;
+ cdns,tshsl-ns = <50>;
+ cdns,tsd2d-ns = <50>;
+ cdns,tchsh-ns = <4>;
+ cdns,tslch-ns = <4>;
+
+ partition at qspi-boot {
+ /* 8MB for raw data. */
+ label = "Flash 0 Raw Data";
+ reg = <0x0 0x800000>;
+ };
+
+ partition at qspi-rootfs {
+ /* 120MB for jffs2 data. */
+ label = "Flash 0 jffs2 Filesystem";
+ reg = <0x800000 0x7800000>;
+ };
+ };
+};
+
&usb1 {
status = "okay";
};
--
1.7.9.5
reply other threads:[~2016-10-19 4:11 UTC|newest]
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