x86: fsp: Move common dram functions into a common file
Most of the DRAM functionality can be shared between FSP1 and FSP2. Move
it into a shared file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: rebase the patch against u-boot-x86/next to get it applied cleanly]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/lib/fsp/fsp_dram.c b/arch/x86/lib/fsp/fsp_dram.c
new file mode 100644
index 0000000..8fe1e0b
--- /dev/null
+++ b/arch/x86/lib/fsp/fsp_dram.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <handoff.h>
+#include <asm/fsp/fsp_support.h>
+#include <asm/e820.h>
+#include <asm/mrccache.h>
+#include <asm/post.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int fsp_scan_for_ram_size(void)
+{
+ phys_size_t ram_size = 0;
+ const struct hob_header *hdr;
+ struct hob_res_desc *res_desc;
+
+ hdr = gd->arch.hob_list;
+ while (!end_of_hob(hdr)) {
+ if (hdr->type == HOB_TYPE_RES_DESC) {
+ res_desc = (struct hob_res_desc *)hdr;
+ if (res_desc->type == RES_SYS_MEM ||
+ res_desc->type == RES_MEM_RESERVED)
+ ram_size += res_desc->len;
+ }
+ hdr = get_next_hob(hdr);
+ }
+
+ gd->ram_size = ram_size;
+ post_code(POST_DRAM);
+
+ return 0;
+};
+
+int dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = 0;
+ gd->bd->bi_dram[0].size = gd->ram_size;
+
+ return 0;
+}
+
+unsigned int install_e820_map(unsigned int max_entries,
+ struct e820_entry *entries)
+{
+ unsigned int num_entries = 0;
+ const struct hob_header *hdr;
+ struct hob_res_desc *res_desc;
+
+ hdr = gd->arch.hob_list;
+
+ while (!end_of_hob(hdr)) {
+ if (hdr->type == HOB_TYPE_RES_DESC) {
+ res_desc = (struct hob_res_desc *)hdr;
+ entries[num_entries].addr = res_desc->phys_start;
+ entries[num_entries].size = res_desc->len;
+
+ if (res_desc->type == RES_SYS_MEM)
+ entries[num_entries].type = E820_RAM;
+ else if (res_desc->type == RES_MEM_RESERVED)
+ entries[num_entries].type = E820_RESERVED;
+
+ num_entries++;
+ }
+ hdr = get_next_hob(hdr);
+ }
+
+ /* Mark PCIe ECAM address range as reserved */
+ entries[num_entries].addr = CONFIG_PCIE_ECAM_BASE;
+ entries[num_entries].size = CONFIG_PCIE_ECAM_SIZE;
+ entries[num_entries].type = E820_RESERVED;
+ num_entries++;
+
+#ifdef CONFIG_HAVE_ACPI_RESUME
+ /*
+ * Everything between U-Boot's stack and ram top needs to be
+ * reserved in order for ACPI S3 resume to work.
+ */
+ entries[num_entries].addr = gd->start_addr_sp - CONFIG_STACK_SIZE;
+ entries[num_entries].size = gd->ram_top - gd->start_addr_sp +
+ CONFIG_STACK_SIZE;
+ entries[num_entries].type = E820_RESERVED;
+ num_entries++;
+#endif
+
+ return num_entries;
+}