u-boot/drivers/usb/musb-new/linux-compat.h
Masahiro Yamada b44b30260f printk: collect printk stuff into <linux/printk.h> with loglevel support
When we import code from Linux, with regular re-sync planned, we want
to use printk() and pr_*().  U-Boot does not support them in a clean
way.  So, people end up with local macros, or compat headers here and
there, then we occasionally see build errors of definition conflicts.

We have include/linux/compat.h, but putting all sorts of unrelated
things into a single header is just a temporal workaround.  Hence this
patch, to find the best home for all printk variants.  If you want to
use printk() and friends, please include <linux/printk.h>.  This header
is self-contained, and pulls in only a few headers.

When I was testing this clean-up, I noticed the image size exceeded
its platform limit on some boards.  This is because all pr_*() that
were previously defined as no-op in include/linux/mtd/mtd.h (unless
CONFIG_MTD_DEBUG is set), are now enabled.

To make such boards happy, this commit also implements CONFIG_LOGLEVEL.
The concept is similar to the kernel parameter "loglevel".  (Actually,
the Kconfig help message was taken from kernel-paremeter.txt of Linux)
Messages with a loglevel smaller than console loglevel will be printed.

The difference is the loglevel is build-time determined.  To save the
image size, lower priority pr_*() are compiled out.  I set the default
of CONFIG_LOGLEVEL to 6, i.e. pr_notice and higher priority messages
are compiled in.

I adjusted CONFIG_LOGLEVEL to avoid build error for some boards.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Add in SPL_LOGLEVEL that is the same as LOGLEVEL]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 10:31:17 -04:00

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C

#ifndef __LINUX_COMPAT_H__
#define __LINUX_COMPAT_H__
#include <malloc.h>
#include <linux/list.h>
#include <linux/compat.h>
#define WARN(condition, fmt, args...) ({ \
int ret_warn = !!condition; \
if (ret_warn) \
printf(fmt, ##args); \
ret_warn; })
#define device_init_wakeup(dev, a) do {} while (0)
#define platform_data device_data
#ifndef wmb
#define wmb() asm volatile ("" : : : "memory")
#endif
#define msleep(a) udelay(a * 1000)
/*
* Map U-Boot config options to Linux ones
*/
#ifdef CONFIG_OMAP34XX
#define CONFIG_SOC_OMAP3430
#endif
#ifdef CONFIG_OMAP44XX
#define CONFIG_ARCH_OMAP4
#endif
#endif /* __LINUX_COMPAT_H__ */