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arm64: dts: stratix10: Add QSPI support for Stratix10

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Add qspi_clock
   The qspi_clk frequency is updated by U-Boot before starting Linux.
Add QSPI interface node.
Add QSPI flash memory child node.
   Setup the QSPI memory in 2 partitions.

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
This commit is contained in:
Thor Thayer 2018-05-15 17:26:27 -05:00 • committed by Dinh Nguyen
parent 021c91791a
commit 0cb140d07f
2 changed files with 56 additions and 0 deletions
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21
arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
View file

@ -119,6 +119,12 @@
#clock-cells = <0>; #clock-cells = <0>;
compatible = "fixed-clock"; compatible = "fixed-clock";
}; };
qspi_clk: qspi-clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <200000000>;
};
}; };
gmac0: ethernet@ff800000 { gmac0: ethernet@ff800000 {
@ -464,5 +470,20 @@
interrupts = <16 4>, <48 4>; interrupts = <16 4>, <48 4>;
}; };
}; };
qspi: spi@ff8d2000 {
compatible = "cdns,qspi-nor";
#address-cells = <1>;
#size-cells = <0>;
reg = <0xff8d2000 0x100>,
<0xff900000 0x100000>;
interrupts = <0 3 4>;
cdns,fifo-depth = <128>;
cdns,fifo-width = <4>;
cdns,trigger-address = <0x00000000>;
clocks = <&qspi_clk>;
status = "disabled";
};
}; };
}; };

35
arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
View file

@ -147,3 +147,38 @@
reg = <0x68>; reg = <0x68>;
}; };
}; };
&qspi {
flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "n25q00a";
reg = <0>;
spi-max-frequency = <50000000>;
m25p,fast-read;
cdns,page-size = <256>;
cdns,block-size = <16>;
cdns,read-delay = <1>;
cdns,tshsl-ns = <50>;
cdns,tsd2d-ns = <50>;
cdns,tchsh-ns = <4>;
cdns,tslch-ns = <4>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
qspi_boot: partition@0 {
label = "Boot and fpga data";
reg = <0x0 0x4000000>;
};
qspi_rootfs: partition@4000000 {
label = "Root Filesystem - JFFS2";
reg = <0x4000000 0x4000000>;
};
};
};
};