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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
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diff --git a/kernel/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt b/kernel/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
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+* Freescale Quad Serial Peripheral Interface(QuadSPI)
+
+Required properties:
+ - compatible : Should be "fsl,vf610-qspi" or "fsl,imx6sx-qspi"
+ - reg : the first contains the register location and length,
+ the second contains the memory mapping address and length
+ - reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
+ - interrupts : Should contain the interrupt for the device
+ - clocks : The clocks needed by the QuadSPI controller
+ - clock-names : the name of the clocks
+
+Optional properties:
+ - fsl,qspi-has-second-chip: The controller has two buses, bus A and bus B.
+ Each bus can be connected with two NOR flashes.
+ Most of the time, each bus only has one NOR flash
+ connected, this is the default case.
+ But if there are two NOR flashes connected to the
+ bus, you should enable this property.
+ (Please check the board's schematic.)
+
+Example:
+
+qspi0: quadspi@40044000 {
+ compatible = "fsl,vf610-qspi";
+ reg = <0x40044000 0x1000>, <0x20000000 0x10000000>;
+ reg-names = "QuadSPI", "QuadSPI-memory";
+ interrupts = <0 24 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks VF610_CLK_QSPI0_EN>,
+ <&clks VF610_CLK_QSPI0>;
+ clock-names = "qspi_en", "qspi";
+
+ flash0: s25fl128s@0 {
+ ....
+ };
+};