Table of Contents
Introduction
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Driver Missing features, Known Issues and Limitations
- STIG Memory Bank.
Supported Flash parts
- Micron (512Mb, 1Gb and 2Gb)
Testing
- Flashcp
- mtd utilities.
- mtd_speedtest
- mtd_stresstest
- File System testing - UBIFS and JFFS2
Kernel Configuration
Code Block |
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CONFIG_SPI_CADENCE_QUADSPI=y |
Device-tree
Sample Device-tree node for OSPI
Code Block |
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spi@f1010000 { compatible = "xlnx,versal-ospi-1.0", "cadence,qspi", "cdns,qspi-nor"; status = "okay"; reg = <0x0 0xf1010000 0x0 0x10000 0x0 0xc0000000 0x0 0x20000000>; interrupts = <0x0 0x7c 0x4 0x0 0x7c 0x4>; clock-names = "ref_clk", "pclk"; cdns,fifo-depth = <0x100>; cdns,fifo-width = <0x4>; cdns,is-dma = <0x1>; cdns,is-stig-pgm = <0x1>; cdns,trigger-address = <0xc0000000>; #stream-id-cells = <0x1>; #address-cells = <0x1>; #size-cells = <0x0>; clocks = <0x3 0x3a 0x3 0x52>; power-domains = <0x7 0x1822402a>; bus-num = <0x2>; num-cs = <0x1>; reset-gpios = <0x28 0xc 0x0>; phandle = <0x33>; flash@0 { compatible = "mt35xu02g", "micron,m25p80", "spi-flash"; reg = <0x0>; #address-cells = <0x1>; #size-cells = <0x1>; cdns,read-delay = <0x0>; cdns,tshsl-ns = <0x0>; cdns,tsd2d-ns = <0x0>; cdns,tchsh-ns = <0x1>; cdns,tslch-ns = <0x1>; spi-tx-bus-width = <0x1>; spi-rx-bus-width = <0x8>; spi-max-frequency = <0x1312d00>; partition@0 { label = "spi0-flash0"; reg = <0x0 0x10000000>; }; }; }; |
Performance Details
At frequency 133.33 MHz
DDR mode:
Read Speed: 226768 KiB/s
Write Speed: 1696 KiB/s
Mainline Status
Not in Mainline
Change Log
2021.1
- b832b6b - Added support for OSPI Macronix(mx25um51345g) part .
- 7216a02 - Added support for reading from unaligned address.
- 5ca8ce8 - Rx periodic tuning updates for Master DLL mode.
2020.2
- 6ab15b2 - Added support for stacked mode.
- 3ff8d4e, 46fe093 - Added support for ISSI and GIGADEVICE parts.
- 56e44ec - Fix the issues in Rx periodic tuning.
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