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| author | Mike Rapoport <rppt@linux.ibm.com> | 2020-06-10 09:45:20 +0300 |
|---|---|---|
| committer | Mike Rapoport <rppt@linux.ibm.com> | 2020-07-01 12:09:13 +0300 |
| commit | fb37409a01b011a664347702f44dbf13fa7c7486 (patch) | |
| tree | f9422acc3b91dd0df2721eaca9209e867fe10eb9 /arch/unicore32/include/asm/delay.h | |
| parent | 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68 (diff) | |
| download | linux-fb37409a01b011a664347702f44dbf13fa7c7486.tar.bz2 | |
arch: remove unicore32 port
The unicore32 port do not seem maintained for a long time now, there is no
upstream toolchain that can create unicore32 binaries and all the links to
prebuilt toolchains for unicore32 are dead. Even compilers that were
available are not supported by the kernel anymore.
Guenter Roeck says:
I have stopped building unicore32 images since v4.19 since there is no
available compiler that is still supported by the kernel. I am surprised
that support for it has not been removed from the kernel.
Remove unicore32 port.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'arch/unicore32/include/asm/delay.h')
| -rw-r--r-- | arch/unicore32/include/asm/delay.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/unicore32/include/asm/delay.h b/arch/unicore32/include/asm/delay.h deleted file mode 100644 index 934193edfa66..000000000000 --- a/arch/unicore32/include/asm/delay.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/include/asm/delay.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * Delay routines, using a pre-computed "loops_per_second" value. - */ -#ifndef __UNICORE_DELAY_H__ -#define __UNICORE_DELAY_H__ - -#include <asm/param.h> /* HZ */ - -extern void __delay(int loops); - -/* - * This function intentionally does not exist; if you see references to - * it, it means that you're calling udelay() with an out of range value. - * - * With currently imposed limits, this means that we support a max delay - * of 2000us. Further limits: HZ<=1000 and bogomips<=3355 - */ -extern void __bad_udelay(void); - -/* - * division by multiplication: you don't have to worry about - * loss of precision. - * - * Use only for very small delays ( < 1 msec). Should probably use a - * lookup table, really, as the multiplications take much too long with - * short delays. This is a "reasonable" implementation, though (and the - * first constant multiplications gets optimized away if the delay is - * a constant) - */ -extern void __udelay(unsigned long usecs); -extern void __const_udelay(unsigned long); - -#define MAX_UDELAY_MS 2 - -#define udelay(n) \ - (__builtin_constant_p(n) ? \ - ((n) > (MAX_UDELAY_MS * 1000) ? __bad_udelay() : \ - __const_udelay((n) * ((2199023U*HZ)>>11))) : \ - __udelay(n)) - -#endif /* __UNICORE_DELAY_H__ */ - |