arm: dts: Stratix10: Add QSPI node

Merge qspi dts node from Linux.
Commit 0cb140d07fc75fb (arm64: dts: stratix10: Add QSPI support for Stratix10)

Add -u-boot.dtsi files for non Linux dts properties and
update properties for Uboot.
- add u-boot,dm-pre-reloc
- add alias for spi0
- change compatible for flash
- support quad read and quad write
- change maximum frequency to 100MHz

Tested on Stratix 10 SoC devkit.
SOCFPGA_STRATIX10 # sf probe 0:0
SF: Detected mt25qu02g with page size 256 Bytes, erase size 64 KiB, total 256 MiB

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

diff --git a/arch/arm/dts/socfpga_stratix10.dtsi b/arch/arm/dts/socfpga_stratix10.dtsi
old mode 100644 (file)
new mode 100755 (executable)
index ee93725..d1ae2fa
--- a/arch/arm/dts/socfpga_stratix10.dtsi
+++ b/arch/arm/dts/socfpga_stratix10.dtsi
@@ -237,6 +237,19 @@
                        reg = <0xffe00000 0x100000>;
                };
 
+               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>;
+                       status = "disabled";
+               };
+
                rst: rstmgr@ffd11000 {
                        #reset-cells = <1>;
                        compatible = "altr,rst-mgr";

diff --git a/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi b/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi
new file mode 100755 (executable)
index 0000000..e1cfb52
--- /dev/null
+++ b/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot additions
+ *
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+/{
+       aliases {
+               spi0 = &qspi;
+       };
+};
+
+&qspi {
+       status = "okay";
+       u-boot,dm-pre-reloc;
+};
+
+&flash0 {
+       compatible = "jedec,spi-nor";
+       spi-max-frequency = <100000000>;
+       spi-tx-bus-width = <4>;
+       spi-rx-bus-width = <4>;
+       u-boot,dm-pre-reloc;
+};

diff --git a/arch/arm/dts/socfpga_stratix10_socdk.dts b/arch/arm/dts/socfpga_stratix10_socdk.dts
old mode 100644 (file)
new mode 100755 (executable)
index c59b77d..2745050
--- a/arch/arm/dts/socfpga_stratix10_socdk.dts
+++ b/arch/arm/dts/socfpga_stratix10_socdk.dts
@@ -87,6 +87,41 @@
        smplsel = <0>;
 };
 
+&qspi {
+       flash0: 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>;
+                       };
+               };
+       };
+};
+
 &uart0 {
        status = "okay";
 };