We don't support SDRAM init in 64-bit mode since it is essentially impossible to get into that mode before SDRAM set up. Provide dummy functions for now. At some point we will need to pass the SDRAM parameters through from SPL.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/cpu/ivybridge/Makefile | 3 +++ arch/x86/cpu/ivybridge/sdram_nop.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 arch/x86/cpu/ivybridge/sdram_nop.c
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile index 8bebcf8..2de11fc 100644 --- a/arch/x86/cpu/ivybridge/Makefile +++ b/arch/x86/cpu/ivybridge/Makefile @@ -17,5 +17,8 @@ ifndef CONFIG_SPL_BUILD obj-y += sata.o endif obj-$(CONFIG_$(SPL_)X86_32BIT_INIT) += sdram.o +ifndef CONFIG_$(SPL_)X86_32BIT_INIT +obj-y += sdram_nop.o +endif endif obj-y += bd82x6x.o diff --git a/arch/x86/cpu/ivybridge/sdram_nop.c b/arch/x86/cpu/ivybridge/sdram_nop.c new file mode 100644 index 0000000..edb3cb1 --- /dev/null +++ b/arch/x86/cpu/ivybridge/sdram_nop.c @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2016 Google, Inc + * + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->ram_size = 1ULL << 31; + gd->bd->bi_dram[0].start = 0; + gd->bd->bi_dram[0].size = gd->ram_size; + + return 0; +} + +int misc_init_r(void) +{ + return 0; +} + +int print_cpuinfo(void) +{ + return 0; +}