* (C) Copyright 2002-2010
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H
-/*
- * The following data structure is placed in some memory wich is
- * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
- * some locked parts of the data cache) to allow for a minimum set of
- * global variables during system initialization (until we have set
- * up the memory controller so that we can use RAM).
- *
- * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
- */
#ifndef __ASSEMBLY__
-typedef struct global_data {
- bd_t *bd;
- unsigned long flags;
- unsigned long baudrate;
- unsigned long have_console; /* serial_init() was called */
- unsigned long reloc_off; /* Relocation Offset */
- unsigned long load_off; /* Load Offset */
- unsigned long env_addr; /* Address of Environment struct */
- unsigned long env_valid; /* Checksum of Environment valid? */
- unsigned long cpu_clk; /* CPU clock in Hz! */
- unsigned long bus_clk;
- unsigned long relocaddr; /* Start address of U-Boot in RAM */
- unsigned long start_addr_sp; /* start_addr_stackpointer */
- phys_size_t ram_size; /* RAM size */
- unsigned long reset_status; /* reset status register at boot */
- void **jt; /* jump table */
- char env_buf[32]; /* buffer for getenv() before reloc. */
-} gd_t;
-
-extern gd_t *gd;
+#include <asm/processor.h>
-#endif
+enum pei_boot_mode_t {
+ PEI_BOOT_NONE = 0,
+ PEI_BOOT_SOFT_RESET,
+ PEI_BOOT_RESUME,
-/* Word Offsets into Global Data - MUST match struct gd_t */
-#define GD_BD 0
-#define GD_FLAGS 1
-#define GD_BAUDRATE 2
-#define GD_HAVE_CONSOLE 3
-#define GD_RELOC_OFF 4
-#define GD_LOAD_OFF 5
-#define GD_ENV_ADDR 6
-#define GD_ENV_VALID 7
-#define GD_CPU_CLK 8
-#define GD_BUS_CLK 9
-#define GD_RELOC_ADDR 10
-#define GD_START_ADDR_SP 11
-#define GD_RAM_SIZE 12
-#define GD_RESET_STATUS 13
-#define GD_JT 14
-
-#define GD_SIZE 15
+};
-/*
- * Global Data Flags
+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.
*/
-#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
-#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
-#define GD_FLG_SILENT 0x00004 /* Silent mode */
-#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
-#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
-#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
-#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
-#define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */
-#define GD_FLG_COLD_BOOT 0x00100 /* Cold Boot */
-#define GD_FLG_WARM_BOOT 0x00200 /* Warm Boot */
-
-#if 0
+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 */
+#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 */
+};
+
+#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
-#else
-#define XTRN_DECLARE_GLOBAL_DATA_PTR extern
-#define DECLARE_GLOBAL_DATA_PTR XTRN_DECLARE_GLOBAL_DATA_PTR \
-gd_t *gd
+# 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 */