+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
-#include <asm/u-boot-x86.h>
-#include <flash.h>
-#include <netdev.h>
-#include <ns16550.h>
-#include <asm/msr.h>
-#include <asm/cache.h>
-#include <asm/cpu.h>
+#include <fdtdec.h>
+#include <usb.h>
#include <asm/io.h>
-#include <asm/arch/tables.h>
+#include <asm/msr.h>
+#include <asm/mtrr.h>
#include <asm/arch/sysinfo.h>
#include <asm/arch/timestamp.h>
return x86_cpu_init_f();
}
-int board_early_init_f(void)
-{
- return 0;
-}
-
-int board_early_init_r(void)
+int checkcpu(void)
{
- /* CPU Speed to 100MHz */
- gd->cpu_clk = 100000000;
-
- /* Crystal is 33.000MHz */
- gd->bus_clk = 33000000;
-
return 0;
}
return default_print_cpuinfo();
}
-int last_stage_init(void)
-{
- if (gd->flags & GD_FLG_COLD_BOOT)
- timestamp_add_to_bootstage();
-
- return 0;
-}
-
-#ifndef CONFIG_SYS_NO_FLASH
-ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
+static void board_final_cleanup(void)
{
- return 0;
-}
-#endif
-
-int board_eth_init(bd_t *bis)
-{
- return pci_eth_init(bis);
-}
-
-#define MTRR_TYPE_WP 5
-#define MTRRcap_MSR 0xfe
-#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
-#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
-
-void board_final_cleanup(void)
-{
- /* Un-cache the ROM so the kernel has one
+ /*
+ * 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(MTRRcap_MSR) & 0xff) - 1;
- u8 top_type = native_read_msr(MTRRphysBase_MSR(top_mtrr)) & 0xff;
+ 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_WP) {
- disable_caches();
- wrmsrl(MTRRphysBase_MSR(top_mtrr), 0);
- wrmsrl(MTRRphysMask_MSR(top_mtrr), 0);
- enable_caches();
+ if (top_type == MTRR_TYPE_WRPROT) {
+ struct mtrr_state state;
+
+ mtrr_open(&state, true);
+ wrmsrl(MTRR_PHYS_BASE_MSR(top_mtrr), 0);
+ wrmsrl(MTRR_PHYS_MASK_MSR(top_mtrr), 0);
+ mtrr_close(&state, true);
}
- /* Issue SMI to Coreboot to lock down ME and registers */
- printf("Finalizing Coreboot\n");
- outb(0xcb, 0xb2);
+ 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);
+ }
}
-void panic_puts(const char *str)
+int last_stage_init(void)
{
- NS16550_t port = (NS16550_t)0x3f8;
+ if (gd->flags & GD_FLG_COLD_BOOT)
+ timestamp_add_to_bootstage();
+
+ /* start usb so that usb keyboard can be used as input device */
+ usb_init();
- NS16550_init(port, 1);
- while (*str)
- NS16550_putc(port, *str++);
+ board_final_cleanup();
+
+ return 0;
}