NSA310 non fdt kernel LED and FAN problem

[marlemion]

Hi,

I installed bodhis new uboot on my NSA310 and want to boot a non fdt (i.e. linux-kirkwood) kernel. This kernel appears to boot ok.

[ 0.000000] Machine: Zyxel NSA-310

Network device comes up as enp0s1, however, I get the following error:

[ 38.332861] libphy: PHY orion-mdio-mii:00 not found
[ 38.350324] rtc-pcf8563 0-0051: chip found, driver version 0.4.4
[ 38.362901] rtc-pcf8563 0-0051: pcf8563_write_block_data: err=-6 addr=0e, data=03
[ 38.370441] rtc-pcf8563 0-0051: pcf8563_probe: write error
[ 38.432843] rtc-pcf8563: probe of 0-0051 failed with error -5
[ 38.446735] r8169 0000:00:01.0 enp0s1: renamed from eth0

I usually resemble the original zyxel software behavior of the leds by giving them the right values (echo them in on boot). This works fine, altough there is a crash for the first time I write a number to those leds:

[ 61.529944] ------------[ cut here ]------------
[ 61.534612] WARNING: CPU: 0 PID: 307 at drivers/gpio/gpiolib.c:85 gpio_to_desc+0xdc/0x118()
[ 61.618562] invalid GPIO -813686336
[ 61.622075] Modules linked in: reiserfs mv_cesa rtc_pcf8563 ip_tables x_tables ipv6
[ 61.646066] CPU: 0 PID: 307 Comm: echo Not tainted 4.4.7-1-ARCH #1
[ 61.685320] Hardware name: Zyxel NSA-310
[ 61.689436] [<c00104cc>] (unwind_backtrace) from [<c000d9f0>] (show_stack+0x10/0x14)
[ 61.731981] [<c000d9f0>] (show_stack) from [<c0020654>] (warn_slowpath_common+0x80/0xb8)
[ 61.757424] [<c0020654>] (warn_slowpath_common) from [<c00206bc>] (warn_slowpath_fmt+0x30/0x40)
[ 61.779918] [<c00206bc>] (warn_slowpath_fmt) from [<c03b5e2c>] (gpio_to_desc+0xdc/0x118)
[ 61.797561] [<c03b5e2c>] (gpio_to_desc) from [<c001c274>] (nsa310_gpio_blink_set+0x44/0x5c)
[ 61.814497] [<c001c274>] (nsa310_gpio_blink_set) from [<c052a1cc>] (gpio_led_set+0x48/0x70)
[ 61.835348] [<c052a1cc>] (gpio_led_set) from [<c05295c0>] (brightness_store+0x58/0x88)
[ 61.844070] r8169 0000:00:01.0 enp0s1: link up
[ 61.867962] [<c05295c0>] (brightness_store) from [<c019e668>] (kernfs_fop_write+0xb8/0x1ac)
[ 61.885892] [<c019e668>] (kernfs_fop_write) from [<c01291f8>] (vfs_write+0x90/0x1a4)
[ 61.893737] [<c01291f8>] (vfs_write) from [<c0129b24>] (SyS_write+0x44/0xa4)
[ 61.920863] [<c0129b24>] (SyS_write) from [<c000a420>] (ret_fast_syscall+0x0/0x38)
[ 61.951849] ---[ end trace f0c6015c4192ca61 ]---

Finally, the fan does not work. The fdt kernel allowed me beforehand to control the pwm via:

/sys/devices/platform/ocp\@f1000000/f1011000.i2c/i2c-0/0-002e/hwmon/hwmon0/

However, that is gone. There is no adt7475 module present in the kernel package. lm85 does not work. It seems to me that there is a problem with the right device tree stuff. In fact, there is nothing called *pwm* in /sys.

Any idea?