2018-05-15 22:25:29

by Thor Thayer

Subject: [PATCHv3] arm64: dts: stratix10: Add QSPI support for Stratix10

From: Thor Thayer <[email protected]>

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 <[email protected]>
---
v2 s/_/-/ in qspi-clk
rename flash node.
use partition child node notation
v3 remove unused bus-num node
use device id from table (n25q00a)
---
arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 21 +++++++++++++
.../boot/dts/altera/socfpga_stratix10_socdk.dts | 35 ++++++++++++++++++++++
2 files changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index e6b059378dc0..d8c94d5ff4b4 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -119,6 +119,12 @@
#clock-cells = <0>;
compatible = "fixed-clock";
};
+
+ qspi_clk: qspi-clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <200000000>;
+ };
};

gmac0: ethernet@ff800000 {
@@ -466,5 +472,20 @@
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";
+ };
};
};
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
index f9b1ef12db48..6edc4fa9fd42 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
@@ -147,3 +147,38 @@
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>;
+ };
+ };
+ };
+};
--
2.7.4

2018-05-16 13:37:06

by Dinh Nguyen

Subject: Re: [PATCHv3] arm64: dts: stratix10: Add QSPI support for Stratix10

On 05/15/2018 05:26 PM, [email protected] wrote:
> From: Thor Thayer <[email protected]>
>
> 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 <[email protected]>
> ---
> v2 s/_/-/ in qspi-clk
> rename flash node.
> use partition child node notation
> v3 remove unused bus-num node
> use device id from table (n25q00a)
> ---
> arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi | 21 +++++++++++++
> .../boot/dts/altera/socfpga_stratix10_socdk.dts | 35 ++++++++++++++++++++++
> 2 files changed, 56 insertions(+)
>

Applied!

Thanks,
Dinh