avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/x86/include/asm/global_data.h

@@ -0,0 +1,135 @@
+/*
+ * (C) Copyright 2002-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+
+#ifndef __ASSEMBLY__
+
+#include <asm/processor.h>
+
+enum pei_boot_mode_t {
+	PEI_BOOT_NONE = 0,
+	PEI_BOOT_SOFT_RESET,
+	PEI_BOOT_RESUME,
+
+};
+
+struct dimm_info {
+	uint32_t dimm_size;
+	uint16_t ddr_type;
+	uint16_t ddr_frequency;
+	uint8_t rank_per_dimm;
+	uint8_t channel_num;
+	uint8_t dimm_num;
+	uint8_t bank_locator;
+	/* The 5th byte is '\0' for the end of string */
+	uint8_t serial[5];
+	/* The 19th byte is '\0' for the end of string */
+	uint8_t module_part_number[19];
+	uint16_t mod_id;
+	uint8_t mod_type;
+	uint8_t bus_width;
+} __packed;
+
+struct pei_memory_info {
+	uint8_t dimm_cnt;
+	/* Maximum num of dimm is 8 */
+	struct dimm_info dimm[8];
+} __packed;
+
+struct memory_area {
+	uint64_t start;
+	uint64_t size;
+};
+
+struct memory_info {
+	int num_areas;
+	uint64_t total_memory;
+	uint64_t total_32bit_memory;
+	struct memory_area area[CONFIG_NR_DRAM_BANKS];
+};
+
+#define MAX_MTRR_REQUESTS	8
+
+/**
+ * A request for a memory region to be set up in a particular way. These
+ * requests are processed before board_init_r() is called. They are generally
+ * optional and can be ignored with some performance impact.
+ */
+struct mtrr_request {
+	int type;		/* MTRR_TYPE_... */
+	uint64_t start;
+	uint64_t size;
+};
+
+/* Architecture-specific global data */
+struct arch_global_data {
+	u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16);
+	struct global_data *gd_addr;	/* Location of Global Data */
+	uint8_t x86;			/* CPU family */
+	uint8_t x86_vendor;		/* CPU vendor */
+	uint8_t x86_model;
+	uint8_t x86_mask;
+	uint32_t x86_device;
+	uint64_t tsc_base;		/* Initial value returned by rdtsc() */
+	void *new_fdt;			/* Relocated FDT */
+	uint32_t bist;			/* Built-in self test value */
+	enum pei_boot_mode_t pei_boot_mode;
+	const struct pch_gpio_map *gpio_map;	/* board GPIO map */
+	struct memory_info meminfo;	/* Memory information */
+	struct pei_memory_info pei_meminfo;	/* PEI memory information */
+#ifdef CONFIG_HAVE_FSP
+	void *hob_list;			/* FSP HOB list */
+#endif
+	struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS];
+	int mtrr_req_count;
+	int has_mtrr;
+	/* MRC training data to save for the next boot */
+	char *mrc_output;
+	unsigned int mrc_output_len;
+	ulong table;			/* Table pointer from previous loader */
+#ifdef CONFIG_SEABIOS
+	u32 high_table_ptr;
+	u32 high_table_limit;
+#endif
+};
+
+#endif
+
+#include <asm-generic/global_data.h>
+
+#ifndef __ASSEMBLY__
+# ifdef CONFIG_EFI_APP
+
+#define gd global_data_ptr
+
+#define DECLARE_GLOBAL_DATA_PTR   extern struct global_data *global_data_ptr
+# else
+static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void)
+{
+	gd_t *gd_ptr;
+
+	asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr));
+
+	return gd_ptr;
+}
+
+#define gd	get_fs_gd_ptr()
+
+#define DECLARE_GLOBAL_DATA_PTR
+# endif
+
+#endif
+
+/*
+ * Our private Global Data Flags
+ */
+#define GD_FLG_COLD_BOOT	0x10000	/* Cold Boot */
+#define GD_FLG_WARM_BOOT	0x20000	/* Warm Boot */
+
+#endif /* __ASM_GBL_DATA_H */