* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
- * 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+
*/
#include <common.h>
-#include <asm/u-boot-x86.h>
-#include <flash.h>
+#include <fdtdec.h>
#include <netdev.h>
+#include <asm/io.h>
#include <asm/msr.h>
-#include <asm/cache.h>
-#include <asm/arch-coreboot/tables.h>
-#include <asm/arch-coreboot/sysinfo.h>
+#include <asm/mtrr.h>
+#include <asm/arch/sysinfo.h>
#include <asm/arch/timestamp.h>
DECLARE_GLOBAL_DATA_PTR;
-unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
-
-/*
- * Miscellaneous platform dependent initializations
- */
-int cpu_init_f(void)
+int arch_cpu_init(void)
{
int ret = get_coreboot_info(&lib_sysinfo);
- if (ret != 0)
+ if (ret != 0) {
printf("Failed to parse coreboot tables.\n");
+ return ret;
+ }
timestamp_init();
- return ret;
+ return x86_cpu_init_f();
}
int board_early_init_f(void)
return 0;
}
-int board_early_init_r(void)
-{
- /* CPU Speed to 100MHz */
- gd->cpu_clk = 100000000;
-
- /* Crystal is 33.000MHz */
- gd->bus_clk = 33000000;
-
- return 0;
-}
-
-void show_boot_progress(int val)
+int print_cpuinfo(void)
{
+ return default_print_cpuinfo();
}
-
int last_stage_init(void)
{
- return 0;
-}
+ if (gd->flags & GD_FLG_COLD_BOOT)
+ timestamp_add_to_bootstage();
-#ifndef CONFIG_SYS_NO_FLASH
-ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
-{
return 0;
}
-#endif
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
-void setup_pcat_compatibility()
+void board_final_cleanup(void)
{
+ /*
+ * Un-cache the ROM so the kernel has one
+ * more MTRR available.
+ *
+ * Coreboot should have assigned this to the
+ * top available variable MTRR.
+ */
+ u8 top_mtrr = (native_read_msr(MTRR_CAP_MSR) & 0xff) - 1;
+ u8 top_type = native_read_msr(MTRR_PHYS_BASE_MSR(top_mtrr)) & 0xff;
+
+ /* Make sure this MTRR is the correct Write-Protected type */
+ if (top_type == MTRR_TYPE_WRPROT) {
+ struct mtrr_state state;
+
+ mtrr_open(&state);
+ wrmsrl(MTRR_PHYS_BASE_MSR(top_mtrr), 0);
+ wrmsrl(MTRR_PHYS_MASK_MSR(top_mtrr), 0);
+ mtrr_close(&state);
+ }
+
+ if (!fdtdec_get_config_bool(gd->fdt_blob, "u-boot,no-apm-finalize")) {
+ /*
+ * Issue SMI to coreboot to lock down ME and registers
+ * when allowed via device tree
+ */
+ printf("Finalizing coreboot\n");
+ outb(0xcb, 0xb2);
+ }
}
-#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
-#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
-
-int board_final_cleanup(void)
+int misc_init_r(void)
{
- /* Un-cache the ROM so the kernel has one
- * more MTRR available.
- */
- disable_caches();
- wrmsrl(MTRRphysBase_MSR(7), 0);
- wrmsrl(MTRRphysMask_MSR(7), 0);
- enable_caches();
+ return 0;
+}
+int arch_misc_init(void)
+{
return 0;
}