[U-Boot] u-boot device model SPI + SPI Flash

[Hoefle Marco]

Hello Jagan,
Thank you for your reply.
Please find my comments bellow. I missed to mention that I am using mainline 2015.07


> -----Original Message-----
> From: Jagan Teki [mailto:jteki at openedev.com]
> Sent: Mittwoch, 21. Oktober 2015 18:28
> To: Hoefle Marco <Marco.Hoefle at nanotronic.ch>
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] u-boot device model SPI + SPI Flash
> 
> On 21 October 2015 at 16:25, Hoefle Marco <Marco.Hoefle at nanotronic.ch>
> wrote:
> >
> >  Hello,
> > I saw that here is also a mailing list dedicated to device model issues but it
> looks obsolete (last post February 2014) so I am using this forum.
> 
> Please note its driver model - not a device model.
Ok
> 
> >
> > I have a problem nearly identically to
> > http://lists.denx.de/pipermail/u-boot/2015-April/210754.html
> >
> >
> > The SPI initialization does not work:
> >
> > Invalid bus 0 (err=-19)
> > *** Warning - spi_flash_probe() failed, using default environment
> 
> Which board it is? dts file name?
It is a custom dts file. It is for a Microblaze CPU in an Artix FPGA. The dts reflects that one below
> 
> >
> >
> > This is the device tree compiled into u-boot:
> >
> > U-Boot> fdt addr 0x8FEB8A7C
> > U-Boot> fdt print
> > / {
> >         #address-cells = <0x00000001>;
> >         #size-cells = <0x00000001>;
> >         aliases {
> >                 serial0 = "serial at 40600000";
> >                 spi0 = "/axi_quad_spi at 44a00000";
> >         };
> >         memory {
> >                 device_type = "memory";
> >                 reg = <0x80000000 0x10000000>;
> >         };
> >         axi_quad_spi at 44a00000 {
> >                 compatible = "xlnx,xps-spi-2.00.a";
> 
> Do you need zynq spi or qspi driver there is no compatible string with
> "xlnx,xps-spi-2.00.a" do know which source you're using?
This driver is used:
u-boot/drivers/spi/xilinx_spi.c


> 
> >                 reg = <0x44a00000 0x00010000>;
> >                 spi-max-frequency = <0x423a35c7>;
> >                 #address-cells = <0x00000001>;
> >                 #size-cells = <0x00000000>;
> >                 status = "okay";
> >                 is-dual = <0x00000000>;
> >                 num-cs = <0x00000001>;
> >                 flash at 0 {
> >                         compatible = "n25q128a11";
> >                         reg = <0x00000000>;
> >                         spi-tx-bus-width = <0x00000001>;
> >                         spi-rx-bus-width = <0x00000004>;
> >                         spi-max-frequency = <0x0d3ed78e>;
> >                         #address-cells = <0x00000001>;
> >                         #size-cells = <0x00000001>;
> >                         partition at qspi-fsbl-uboot {
> >                                 label = "qspi-fsbl-uboot";
> >                                 reg = <0x00000000 0x00100000>;
> >                         };
> >                         partition at qspi-linux {
> >                                 label = "qspi-linux";
> >                                 reg = <0x00100000 0x00500000>;
> >                         };
> >                         partition at qspi-device-tree {
> >                                 label = "qspi-device-tree";
> >                                 reg = <0x00600000 0x00020000>;
> >                         };
> >                         partition at qspi-rootfs {
> >                                 label = "qspi-rootfs";
> >                                 reg = <0x00620000 0x005e0000>;
> >                         };
> >                         partition at qspi-bitstream {
> >                                 label = "qspi-bitstream";
> >                                 reg = <0x00c00000 0x00400000>;
> >                         };
> >                 };
> >         };
> > };
> >
> > Has anybody an idea how to debug this further?
> > Thanks,
> > Marco
> >
> >
> >
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot
> 
> --
> Jagan | openedev.
>