diff options
Diffstat (limited to 'roms/u-boot/arch/x86/lib/init_helpers.c')
-rw-r--r-- | roms/u-boot/arch/x86/lib/init_helpers.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/lib/init_helpers.c b/roms/u-boot/arch/x86/lib/init_helpers.c new file mode 100644 index 000000000..67401b9ba --- /dev/null +++ b/roms/u-boot/arch/x86/lib/init_helpers.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2011 + * Graeme Russ, <graeme.russ@gmail.com> + */ + +#include <common.h> +#include <init.h> +#include <asm/global_data.h> +#include <linux/errno.h> +#include <asm/mtrr.h> + +DECLARE_GLOBAL_DATA_PTR; + +int init_cache_f_r(void) +{ + bool do_mtrr = CONFIG_IS_ENABLED(X86_32BIT_INIT) || + IS_ENABLED(CONFIG_FSP_VERSION2); + int ret; + + if (!ll_boot_init()) + return 0; + + do_mtrr &= !IS_ENABLED(CONFIG_FSP_VERSION1) && + !IS_ENABLED(CONFIG_SYS_SLIMBOOTLOADER); + + if (do_mtrr) { + ret = mtrr_commit(false); + /* + * If MTRR MSR is not implemented by the processor, just ignore + * it + */ + if (ret && ret != -ENOSYS) + return ret; + } + + /* Initialise the CPU cache(s) */ + return init_cache(); +} |