xref: /openbmc/u-boot/arch/x86/cpu/efi/sdram.c (revision 83d290c56fab2d38cd1ab4c4cc7099559c1d5046)
1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
23dcdd17bSBen Stoltz /*
33dcdd17bSBen Stoltz  * Copyright (c) 2015 Google, Inc
43dcdd17bSBen Stoltz  */
53dcdd17bSBen Stoltz 
63dcdd17bSBen Stoltz #include <common.h>
73dcdd17bSBen Stoltz #include <efi.h>
83dcdd17bSBen Stoltz #include <asm/u-boot-x86.h>
93dcdd17bSBen Stoltz 
103dcdd17bSBen Stoltz DECLARE_GLOBAL_DATA_PTR;
113dcdd17bSBen Stoltz 
board_get_usable_ram_top(ulong total_size)123dcdd17bSBen Stoltz ulong board_get_usable_ram_top(ulong total_size)
133dcdd17bSBen Stoltz {
143dcdd17bSBen Stoltz 	return (ulong)efi_get_ram_base() + gd->ram_size;
153dcdd17bSBen Stoltz }
163dcdd17bSBen Stoltz 
dram_init(void)173dcdd17bSBen Stoltz int dram_init(void)
183dcdd17bSBen Stoltz {
193dcdd17bSBen Stoltz 	/* gd->ram_size is set as part of EFI init */
203dcdd17bSBen Stoltz 
213dcdd17bSBen Stoltz 	return 0;
223dcdd17bSBen Stoltz }
233dcdd17bSBen Stoltz 
dram_init_banksize(void)2476b00acaSSimon Glass int dram_init_banksize(void)
253dcdd17bSBen Stoltz {
263dcdd17bSBen Stoltz 	gd->bd->bi_dram[0].start = efi_get_ram_base();
273dcdd17bSBen Stoltz 	gd->bd->bi_dram[0].size = CONFIG_EFI_RAM_SIZE;
2876b00acaSSimon Glass 
2976b00acaSSimon Glass 	return 0;
303dcdd17bSBen Stoltz }
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