Timothy Pearson has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/31996 )
Change subject: arch/ppc64: Add <arch/mmio.h> stubs ......................................................................
arch/ppc64: Add <arch/mmio.h> stubs
The work may be incomplete, we only have an emulation power8 at the moment in the tree.
Change-Id: Icdaa0995c8610dcc636923cc79b8455dfaeaa057 Signed-off-by: Kyösti Mälkki kyosti.malkki@gmail.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/31996 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Timothy Pearson tpearson@raptorengineering.com --- A src/arch/ppc64/include/arch/mmio.h 1 file changed, 53 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Timothy Pearson: Looks good to me, approved
diff --git a/src/arch/ppc64/include/arch/mmio.h b/src/arch/ppc64/include/arch/mmio.h new file mode 100644 index 0000000..8ffb816 --- /dev/null +++ b/src/arch/ppc64/include/arch/mmio.h @@ -0,0 +1,53 @@ +/* + * 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. + */ + +#ifndef __ARCH_MMIO_H__ +#define __ARCH_MMIO_H__ + +#include <stdint.h> + +/* NOTE: These are just stubs; if the architecture requires special + * care to avoid posted writes or cachelines, it is not yet done here. + */ + +static inline uint8_t read8(const volatile void *addr) +{ + return *(volatile uint8_t *)addr; +} + +static inline uint16_t read16(const volatile void *addr) +{ + return *(volatile uint16_t *)addr; +} + +static inline uint32_t read32(const volatile void *addr) +{ + return *(volatile uint32_t *)addr; +} + +static inline void write8(volatile void *addr, uint8_t val) +{ + *(volatile uint8_t *)addr = val; +} + +static inline void write16(volatile void *addr, uint16_t val) +{ + *(volatile uint16_t *)addr = val; +} + +static inline void write32(volatile void *addr, uint32_t val) +{ + *(volatile uint32_t *)addr = val; +} + +#endif /* __ARCH_MMIO_H__ */