* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
*
- * 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 _U_BOOT_I386_H_
#define _U_BOOT_I386_H_ 1
-/* Exports from the Linker Script */
-extern ulong __text_start;
-extern ulong __data_end;
-extern ulong __rel_dyn_start;
-extern ulong __rel_dyn_end;
-extern ulong __bss_start;
-extern ulong __bss_end;
+extern char gdt_rom[];
/* cpu/.../cpu.c */
-int x86_cpu_init_r(void);
-int cpu_init_r(void);
+int arch_cpu_init(void);
int x86_cpu_init_f(void);
int cpu_init_f(void);
void init_gd(gd_t *id, u64 *gdt_addr);
void setup_gdt(gd_t *id, u64 *gdt_addr);
+/*
+ * Setup FSP execution environment GDT to use the one we used in
+ * arch/x86/cpu/start16.S and reload the segment registers.
+ */
+void setup_fsp_gdt(void);
int init_cache(void);
+int cleanup_before_linux(void);
/* cpu/.../timer.c */
void timer_isr(void *);
typedef void (timer_fnc_t) (void);
int register_timer_isr (timer_fnc_t *isr_func);
-
-/* Architecture specific - can be in arch/x86/cpu/, arch/x86/lib/, or $(BOARD)/ */
-int dram_init_f(void);
+unsigned long get_tbclk_mhz(void);
+void timer_set_base(uint64_t base);
+int pcat_timer_init(void);
/* cpu/.../interrupts.c */
int cpu_init_interrupts(void);
-/* board/.../... */
-int dram_init(void);
+int cleanup_before_linux(void);
+int x86_cleanup_before_linux(void);
+void x86_enable_caches(void);
+void x86_disable_caches(void);
+int x86_init_cache(void);
+void reset_cpu(ulong addr);
+ulong board_get_usable_ram_top(ulong total_size);
+void dram_init_banksize(void);
+int default_print_cpuinfo(void);
+
+/* Set up a UART which can be used with printch(), printhex8(), etc. */
+int setup_early_uart(void);
void setup_pcat_compatibility(void);
/* arch/x86/lib/... */
int video_bios_init(void);
-int video_init(void);
+
+/* arch/x86/lib/fsp/... */
+int x86_fsp_init(void);
void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn));
void board_init_f_r(void) __attribute__ ((noreturn));
+int arch_misc_init(void);
+
+/* Read the time stamp counter */
+static inline __attribute__((no_instrument_function)) uint64_t rdtsc(void)
+{
+ uint32_t high, low;
+ __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high));
+ return (((uint64_t)high) << 32) | low;
+}
+
+/* board/... */
+void timer_set_tsc_base(uint64_t new_base);
+uint64_t timer_get_tsc(void);
+
+void quick_ram_check(void);
+
+int x86_init_cpus(void);
+
+#define PCI_VGA_RAM_IMAGE_START 0xc0000
+
#endif /* _U_BOOT_I386_H_ */