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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/x86/lib/fsp1/fsp_common.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/x86/lib/fsp1/fsp_common.c')
-rw-r--r--roms/u-boot/arch/x86/lib/fsp1/fsp_common.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/lib/fsp1/fsp_common.c b/roms/u-boot/arch/x86/lib/fsp1/fsp_common.c
new file mode 100644
index 000000000..209261718
--- /dev/null
+++ b/roms/u-boot/arch/x86/lib/fsp1/fsp_common.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <init.h>
+#include <log.h>
+#include <malloc.h>
+#include <rtc.h>
+#include <acpi/acpi_s3.h>
+#include <asm/cmos_layout.h>
+#include <asm/early_cmos.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/mrccache.h>
+#include <asm/post.h>
+#include <asm/processor.h>
+#include <asm/fsp1/fsp_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void *fsp_prepare_mrc_cache(void)
+{
+ struct mrc_data_container *cache;
+ struct mrc_region entry;
+ int ret;
+
+ ret = mrccache_get_region(MRC_TYPE_NORMAL, NULL, &entry);
+ if (ret)
+ return NULL;
+
+ cache = mrccache_find_current(&entry);
+ if (!cache)
+ return NULL;
+
+ debug("%s: mrc cache at %p, size %x checksum %04x\n", __func__,
+ cache->data, cache->data_size, cache->checksum);
+
+ return cache->data;
+}
+
+int arch_fsp_init(void)
+{
+ void *nvs;
+ int stack = CONFIG_FSP_TEMP_RAM_ADDR;
+ int boot_mode = BOOT_FULL_CONFIG;
+ int prev_sleep_state;
+
+ if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+ prev_sleep_state = chipset_prev_sleep_state();
+ gd->arch.prev_sleep_state = prev_sleep_state;
+ }
+
+ if (!gd->arch.hob_list) {
+ if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
+ nvs = fsp_prepare_mrc_cache();
+ else
+ nvs = NULL;
+
+ if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
+ prev_sleep_state == ACPI_S3) {
+ if (nvs == NULL) {
+ /* If waking from S3 and no cache then */
+ debug("No MRC cache found in S3 resume path\n");
+ post_code(POST_RESUME_FAILURE);
+ /* Clear Sleep Type */
+ chipset_clear_sleep_state();
+ /* Reboot */
+ debug("Rebooting..\n");
+ outb(SYS_RST | RST_CPU, IO_PORT_RESET);
+ /* Should not reach here.. */
+ panic("Reboot System");
+ }
+
+ /*
+ * DM is not available yet at this point, hence call
+ * CMOS access library which does not depend on DM.
+ */
+ stack = cmos_read32(CMOS_FSP_STACK_ADDR);
+ boot_mode = BOOT_ON_S3_RESUME;
+ }
+
+ /*
+ * The first time we enter here, call fsp_init().
+ * Note the execution does not return to this function,
+ * instead it jumps to fsp_continue().
+ */
+ fsp_init(stack, boot_mode, nvs);
+ } else {
+ /*
+ * The second time we enter here, adjust the size of malloc()
+ * pool before relocation. Given gd->malloc_base was adjusted
+ * after the call to board_init_f_init_reserve() in arch/x86/
+ * cpu/start.S, we should fix up gd->malloc_limit here.
+ */
+ gd->malloc_limit += CONFIG_FSP_SYS_MALLOC_F_LEN;
+ }
+
+ return 0;
+}