f0564a9c44
Introduce update* as equivalent of pci_update* for mmio operations. Change-Id: I9f188d586c09ee9f1e17290563f68970603204fb Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36596 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
/*
|
|
* mmio.h provides update*() as well as read/write*() from arch/mmio.h
|
|
*/
|
|
|
|
#ifndef __MMIO_H__
|
|
#define __MMIO_H__
|
|
|
|
#include <arch/mmio.h>
|
|
#include <stdint.h>
|
|
|
|
static __always_inline void update8(volatile void *addr, uint8_t mask, uint8_t or)
|
|
{
|
|
uint8_t reg = read8(addr);
|
|
reg = (reg & mask) | or;
|
|
write8(addr, reg);
|
|
}
|
|
|
|
static __always_inline void update16(volatile void *addr, uint16_t mask, uint16_t or)
|
|
{
|
|
uint16_t reg = read16(addr);
|
|
reg = (reg & mask) | or;
|
|
write16(addr, reg);
|
|
}
|
|
|
|
static __always_inline void update32(volatile void *addr, uint32_t mask, uint32_t or)
|
|
{
|
|
uint32_t reg = read32(addr);
|
|
reg = (reg & mask) | or;
|
|
write32(addr, reg);
|
|
}
|
|
|
|
#endif /* __MMIO_H__ */
|