From 73c11194b0ea6a4fb93456fdff36cbd91838d4ec Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Sat, 6 Oct 2018 18:20:47 +0200 Subject: soc/amd: Implement common reset API Add an `amdblocks` internal API and rename soft_reset() => warm_reset() hard_reset() => cold_reset() as these terms are commonly used in the surrounding code. On Stoney Ridge, make board_reset() call cold_reset() to keep current behaviour of common code calling hard_reset(). But add a TODO if this is intended. Note: Stoney Ridge is using CF9 for the actual reset but the configuration for a cold reset doesn't use the usual full reset bit but some other mechanism. Change-Id: Id33eda676d79529db759b85fa8e28386846e6fa4 Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/29053 Tested-by: build bot (Jenkins) Reviewed-by: Richard Spiegel --- src/soc/amd/common/block/include/amdblocks/reset.h | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/soc/amd/common/block/include/amdblocks/reset.h (limited to 'src/soc/amd/common/block/include') diff --git a/src/soc/amd/common/block/include/amdblocks/reset.h b/src/soc/amd/common/block/include/amdblocks/reset.h new file mode 100644 index 0000000000..4f149eadb9 --- /dev/null +++ b/src/soc/amd/common/block/include/amdblocks/reset.h @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2017 Google, Inc. + * + * 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 __AMD_RESET_H__ +#define __AMD_RESET_H__ + +#include +#include +#include + +void do_warm_reset(void); +void do_cold_reset(void); + +static inline __noreturn void warm_reset(void) +{ + printk(BIOS_INFO, "%s() called!\n", __func__); + dcache_clean_all(); + do_warm_reset(); + halt(); +} + +static inline __noreturn void cold_reset(void) +{ + printk(BIOS_INFO, "%s() called!\n", __func__); + dcache_clean_all(); + do_cold_reset(); + halt(); +} + +#endif /* __AMD_RESET_H__ */ -- cgit v1.2.3