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

From: Hoefle Marco <Marco.Hoefle@nanotronic.ch>
To: u-boot@lists.denx.de
Subject: [U-Boot] u-boot device model SPI + SPI Flash
Date: Wed, 21 Oct 2015 10:55:55 +0000	[thread overview]
Message-ID: <7ccbb9ae7fdb4663832167baa173d6b8@LysExc01.nanotronic.local> (raw)

 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.

I hav?e 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

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";
??????????????? 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?