From bceb9f0fc80c71b8b2a7371288199cdacca1bad9 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Fri, 12 Dec 2014 21:05:31 +0800 Subject: x86: Support Intel FSP initialization path in start.S Per Intel FSP architecture specification, FSP provides 3 routines for bootloader to call. The first one is the TempRamInit (aka Cache-As-Ram initialization) and the second one is the FspInit which does the memory bring up (like MRC for other x86 targets) and chipset initialization. Those two routines have to be called before U-Boot jumping to board_init_f in start.S. The FspInit() will return several memory blocks called Hand Off Blocks (HOBs) whose format is described in Platform Initialization (PI) specification (part of the UEFI specication) to the bootloader. Save this HOB address to the U-Boot global data for later use. Signed-off-by: Bin Meng Acked-by: Simon Glass --- arch/x86/include/asm/global_data.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/x86/include/asm') diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 48bbd1a..03d491a 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -47,6 +47,9 @@ struct arch_global_data { enum pei_boot_mode_t pei_boot_mode; const struct pch_gpio_map *gpio_map; /* board GPIO map */ struct memory_info meminfo; /* Memory information */ +#ifdef CONFIG_HAVE_FSP + void *hob_list; /* FSP HOB list */ +#endif }; #endif -- cgit v1.1