linux_dsm_epyc7002/arch/m68k/include/asm/vga.h
Greg Ungerer df8f77dec7 m68k: don't redefine access functions if we have PCI
Some ColdFire platforms do have real PCI buses, so we should not be
re-defining or otherwise mangling the IO access functions for them.
So when CONFIG_PCI is true use the real io.h support.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Reviewed-by: Angelo Dureghello <angelo@sysam.it>
Tested-by: Angelo Dureghello <angelo@sysam.it>
2018-05-28 09:45:26 +10:00

38 lines
894 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_M68K_VGA_H
#define _ASM_M68K_VGA_H
/*
* Some ColdFire platforms do in fact have a PCI bus. So for those we want
* to use the real IO access functions, don't fake them out or redirect them
* for that case.
*/
#ifndef CONFIG_PCI
#include <asm/raw_io.h>
#include <asm/kmap.h>
/*
* FIXME
* Ugh, we don't have PCI space, so map readb() and friends to use raw I/O
* accessors, which are identical to the z_*() Zorro bus accessors.
* This should make cirrusfb work again on Amiga
*/
#undef inb_p
#undef inw_p
#undef outb_p
#undef outw
#undef readb
#undef writeb
#undef writew
#define inb_p(port) 0
#define inw_p(port) 0
#define outb_p(port, val) do { } while (0)
#define outw(port, val) do { } while (0)
#define readb raw_inb
#define writeb raw_outb
#define writew raw_outw
#endif /* CONFIG_PCI */
#endif /* _ASM_M68K_VGA_H */