1 files changed, 163 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fsp/fsp_support.h b/arch/x86/include/asm/fsp/fsp_support.h
new file mode 100644
index 0000000..4ac27d2
--- /dev/null
+++ b/arch/x86/include/asm/fsp/fsp_support.h
@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: Intel */
+/*
+ * Copyright (C) 2013, Intel Corporation
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#ifndef __FSP_SUPPORT_H__
+#define __FSP_SUPPORT_H__
+
+#include <asm/fsp/fsp_bootmode.h>
+#include <asm/fsp/fsp_fv.h>
+#include <asm/fsp/fsp_hob.h>
+#include <asm/fsp/fsp_infoheader.h>
+#include <asm/fsp/fsp_types.h>
+#include <asm/fsp_arch.h>
+#include <asm/fsp/fsp_azalia.h>
+
+#define FSP_LOWMEM_BASE		0x100000UL
+#define FSP_HIGHMEM_BASE	0x100000000ULL
+#define UPD_TERMINATOR		0x55AA
+
+/**
+ * fsp_find_header() - Find FSP header offset in FSP image
+ *
+ * @return the offset of FSP header. If signature is invalid, returns 0.
+ */
+struct fsp_header *fsp_find_header(void);
+
+/**
+ * fsp_notify() - FSP notification wrapper function
+ *
+ * @fsp_hdr: Pointer to FSP information header
+ * @phase:   FSP initialization phase defined in enum fsp_phase
+ *
+ * @return compatible status code with EFI_STATUS defined in PI spec
+ */
+u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase);
+
+/**
+ * fsp_get_usable_lowmem_top() - retrieves the top of usable low memory
+ *
+ * @hob_list: A HOB list pointer.
+ *
+ * @return Usable low memory top.
+ */
+u32 fsp_get_usable_lowmem_top(const void *hob_list);
+
+/**
+ * fsp_get_usable_highmem_top() - retrieves the top of usable high memory
+ *
+ * @hob_list: A HOB list pointer.
+ *
+ * @return Usable high memory top.
+ */
+u64 fsp_get_usable_highmem_top(const void *hob_list);
+
+/**
+ * fsp_get_reserved_mem_from_guid() - retrieves a special reserved memory region
+ *
+ * @hob_list: A HOB list pointer.
+ * @len:      A pointer to the GUID HOB data buffer length.
+ *            If the GUID HOB is located, the length will be updated.
+ * @guid:     A pointer to the owner guild.
+ *
+ * @return Reserved region start address.
+ *            0 if this region does not exist.
+ */
+u64 fsp_get_reserved_mem_from_guid(const void *hob_list,
+				   u64 *len, const efi_guid_t *guid);
+
+/**
+ * fsp_get_fsp_reserved_mem() - retrieves the FSP reserved normal memory
+ *
+ * @hob_list: A HOB list pointer.
+ * @len:      A pointer to the FSP reserved memory length buffer.
+ *            If the GUID HOB is located, the length will be updated.
+ * @return FSP reserved memory base
+ *            0 if this region does not exist.
+ */
+u32 fsp_get_fsp_reserved_mem(const void *hob_list, u32 *len);
+
+/**
+ * fsp_get_tseg_reserved_mem() - retrieves the TSEG reserved normal memory
+ *
+ * @hob_list:      A HOB list pointer.
+ * @len:           A pointer to the TSEG reserved memory length buffer.
+ *                 If the GUID HOB is located, the length will be updated.
+ *
+ * @return NULL:   Failed to find the TSEG reserved memory.
+ * @return others: TSEG reserved memory base.
+ */
+u32 fsp_get_tseg_reserved_mem(const void *hob_list, u32 *len);
+
+/**
+ * fsp_get_nvs_data() - retrieves FSP Non-volatile Storage HOB buffer and size
+ *
+ * @hob_list:      A HOB list pointer.
+ * @len:           A pointer to the NVS data buffer length.
+ *                 If the HOB is located, the length will be updated.
+ *
+ * @return NULL:   Failed to find the NVS HOB.
+ * @return others: FSP NVS data buffer pointer.
+ */
+void *fsp_get_nvs_data(const void *hob_list, u32 *len);
+
+/**
+ * fsp_get_var_nvs_data() - get FSP variable Non-volatile Storage HOB buffer
+ *
+ * @hob_list:      A HOB list pointer.
+ * @len:           A pointer to the NVS data buffer length.
+ *                 If the HOB is located, the length will be updated.
+ *
+ * @return NULL:   Failed to find the NVS HOB.
+ * @return others: FSP NVS data buffer pointer.
+ */
+void *fsp_get_var_nvs_data(const void *hob_list, u32 *len);
+
+/**
+ * fsp_get_graphics_info() - retrieves graphics information.
+ *
+ * @hob_list:      A HOB list pointer.
+ * @len:           A pointer to the graphics info HOB length.
+ *                 If the HOB is located, the length will be updated.
+ *
+ * @return NULL:   Failed to find the graphics info HOB.
+ * @return others: A pointer to struct hob_graphics_info.
+ */
+void *fsp_get_graphics_info(const void *hob_list, u32 *len);
+
+/**
+ * fsp_init_phase_pci() - Tell the FSP that we have completed PCI init
+ *
+ * @return 0 if OK, -EPERM if the FSP gave an error.
+ */
+int fsp_init_phase_pci(void);
+
+/**
+ * fsp_scan_for_ram_size() - Scan the HOB list to find the RAM size
+ *
+ * This sets gd->ram_size based on what it finds.
+ *
+ * @return 0 if OK, -ve on error
+ */
+int fsp_scan_for_ram_size(void);
+
+/**
+ * fsp_prepare_mrc_cache() - Find the DRAM training data from the MRC cache
+ *
+ * @return pointer to data, or NULL if no cache or no data found in the cache
+ */
+void *fsp_prepare_mrc_cache(void);
+
+/**
+ * fsp_notify() - FSP notification wrapper function
+ *
+ * @fsp_hdr: Pointer to FSP information header
+ * @phase:   FSP initialization phase defined in enum fsp_phase
+ *
+ * @return compatible status code with EFI_STATUS defined in PI spec
+ */
+u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase);
+
+#endif