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d768dd8855
board_get_usable_ram_top() returns a physical address that is stored in gd->ram_top. The return type of the function should be phys_addr_t like the current type of gd->ram_top. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2019 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#define LOG_CATEGORY LOGC_ARCH
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#include <common.h>
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#include <handoff.h>
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#include <init.h>
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#include <log.h>
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#include <spl.h>
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#include <acpi/acpi_s3.h>
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#include <asm/arch/cpu.h>
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#include <asm/fsp/fsp_support.h>
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#include <asm/fsp2/fsp_api.h>
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#include <asm/fsp2/fsp_internal.h>
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#include <asm/global_data.h>
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#include <linux/sizes.h>
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int dram_init(void)
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{
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int ret;
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if (!ll_boot_init()) {
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/* Use a small and safe amount of 1GB */
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gd->ram_size = SZ_1G;
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return 0;
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}
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if (spl_phase() == PHASE_SPL) {
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bool s3wake = false;
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s3wake = IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
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gd->arch.prev_sleep_state == ACPI_S3;
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ret = fsp_memory_init(s3wake,
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IS_ENABLED(CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH));
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if (ret) {
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log_debug("Memory init failed (err=%x)\n", ret);
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return ret;
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}
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/* The FSP has already set up DRAM, so grab the info we need */
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ret = fsp_scan_for_ram_size();
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if (ret)
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return ret;
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#ifdef CONFIG_ENABLE_MRC_CACHE
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gd->arch.mrc[MRC_TYPE_NORMAL].buf =
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fsp_get_nvs_data(gd->arch.hob_list,
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&gd->arch.mrc[MRC_TYPE_NORMAL].len);
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gd->arch.mrc[MRC_TYPE_VAR].buf =
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fsp_get_var_nvs_data(gd->arch.hob_list,
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&gd->arch.mrc[MRC_TYPE_VAR].len);
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log_debug("normal %x, var %x\n",
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gd->arch.mrc[MRC_TYPE_NORMAL].len,
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gd->arch.mrc[MRC_TYPE_VAR].len);
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#endif
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} else {
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#if CONFIG_IS_ENABLED(HANDOFF)
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struct spl_handoff *ho = gd->spl_handoff;
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if (!ho) {
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log_debug("No SPL handoff found\n");
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return -ESTRPIPE;
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}
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gd->ram_size = ho->ram_size;
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handoff_load_dram_banks(ho);
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#endif
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ret = arch_fsps_preinit();
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if (ret)
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return log_msg_ret("fsp_s_preinit", ret);
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}
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return 0;
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}
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phys_addr_t board_get_usable_ram_top(phys_size_t total_size)
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{
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if (!ll_boot_init())
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return gd->ram_size;
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#if CONFIG_IS_ENABLED(HANDOFF)
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struct spl_handoff *ho = gd->spl_handoff;
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log_debug("usable_ram_top = %lx\n", ho->arch.usable_ram_top);
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return ho->arch.usable_ram_top;
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#endif
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return gd->ram_top;
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}
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