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The '_d' suffix was originally meant to distinguish barebox struct
names from Linux struct names. struct driver doesn't exist in Linux,
so we can rename it and remove the meaningless suffix.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The '_d' suffix was originally introduced in case we want to import
Linux struct device as a separate struct into barebox. Over time it
became clear that this won't happen, instead barebox struct device_d
is basically the same as Linux struct device. Rename the struct name
accordingly to make porting Linux code easier.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Including <stdio.h> for printf is a bit problematic, because it pulls in
other headers for <console.h>, which includes quite a few more headers
as well. To make it easier to share code between barebox and host tools
make <printk.h> the new minimal header for printf and move the extra
logging stuff into <linux/printk.h>.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20211030141739.2207431-3-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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If we experience a watchdog reset, the indicating flag should persist
till the Linux driver had a chance to see it.
The flag bit is special however in that writing 1 clears the bit and
writing 0 keeps it intact, i.e. :
Bit
read written result
0 0 = 0
1 0 = 1
0 1 = 0
1 1 = 0
So in the bootloader, we should write a zero always. The OS on the
other hand can either write 1 or the old value after reading to
clear the flag.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On most resets, a "reset reason: unknown" would clutter the console,
because the watchdog doesn't support differentiating between POR and
RST. Reduce the clutter by only printing the message when we have
something interesting to say (i.e. watchdog reset).
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The American Megatrends BIOS I am using can be configured to start the
Fintek watchdog prior to the UEFI payloads. To avoid BIOS updates that reset
this functionality going unnoticed, implement support for WDOG_HW_RUNNING.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This is an adaptation of the Linux v5.3 f71808e_wdt driver for the watchdog
component of the Fintek Super I/O chips.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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