Hi!
I thought I'd try updating my custom SoCFPGA-based board from barebox
2016.11.0 to 2017.01.0, and have only run into one problem, which is
that it is no longer loading the barebox environment during boot:
---------------------------------------------------------
barebox 2017.01.0 #1 Tue Jan 10 14:01:57 GMT 2017
Board: Belltech dbPod SoCFPGA
designware_eth ff702000.ethernet: user ID: 0x10, Synopsys ID: 0x37
mdio_bus: miibus0: probed
flash@0: s25fl256s1 (32768 Kbytes)
cadence_qspi ff705000.spi: Cadence QSPI NOR flash driver
malloc space: 0x0ff7dd00 -> 0x1fefb9ff (size 255.5 MiB)
barebox-environment environment.5: probe failed: No such device
environment load /dev/env0: No such file or directory
Maybe you have to create the partition.
---------------------------------------------------------
After a bit of poking around, I discovered that it is failing in
__of_find_path() at these lines:
if (!dev->driver)
return -ENODEV;
Those lines were added by commit
82eb3dff10ae0c0436e0fcd5ff0c9cd2a2caab3c ("of_path: handle no driver for
device").
I'm not sure which bit of code is responsible for setting dev->driver
(or whether it is appropriate in this case), but if I remove that test,
the environment loads OK.
Here is the barebox DTS I am compiling for my board (sorry about any
line-wrapping):
---------------------------------------------------------
#include <arm/socfpga_cyclone5.dtsi>
#include "socfpga.dtsi"
/ {
model = "Belltech dbPod SoCFPGA";
compatible = "belltech,dbpod", "altr,socfpga-cyclone5", "altr,socfpga";
chosen {
environment@0 {
compatible = "barebox,environment";
device-path = &flash, "partname:barebox-environment";
/delete-property/file-path;
};
};
aliases {
ethernet0 = &gmac1;
/delete-property/ethernet1;
};
memory {
name = "memory";
device_type = "memory";
reg = <0x0 0x20000000>; /* 512GB */
};
};
&gmac1 {
phy-mode = "rgmii";
status = "okay";
};
&gpio0 {
status = "okay";
};
&i2c0 {
status = "okay";
};
&qspi {
status = "okay";
flash: flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "n25q00";
reg = <0>;
spi-max-frequency = <100000000>;
m25p,fast-read;
cdns,page-size = <256>;
cdns,block-size = <16>;
cdns,read-delay = <4>;
cdns,tshsl-ns = <50>;
cdns,tsd2d-ns = <50>;
cdns,tchsh-ns = <4>;
cdns,tslch-ns = <4>;
partition@0 {
label = "prebootloader0";
reg = <0x00000 0x10000>;
};
partition@10000 {
label = "prebootloader1";
reg = <0x10000 0x10000>;
};
partition@20000 {
label = "prebootloader2";
reg = <0x20000 0x10000>;
};
partition@30000 {
label = "prebootloader3";
reg = <0x30000 0x10000>;
};
partition@40000 {
label = "barebox";
reg = <0x40000 0x80000>;
};
partition@c0000 {
label = "barebox-environment";
reg = <0xc0000 0x20000>;
};
partition@e0000 {
label = "barebox-state";
reg = <0xe0000 0x20000>;
};
partition@100000 {
label = "ubi";
reg = <0x100000 0x0>;
};
};
};
---------------------------------------------------------
Best regards,
Ian Abbott.
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Web: http://www.mev.co.uk/ )=-
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