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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2020 Pengutronix e.K.
*
*/
#include <common.h>
#include <init.h>
#include <of.h>
#include <deep-probe.h>
#include "qemu-virt-flash.h"
#ifdef CONFIG_64BIT
#define MACHINE "virt64"
#else
#define MACHINE "virt"
#endif
#ifdef CONFIG_ARM
#include <asm/system_info.h>
static inline void arm_virt_init(void)
{
const char *hostname = MACHINE;
if (cpu_is_cortex_a7())
hostname = "virt-a7";
else if (cpu_is_cortex_a15())
hostname = "virt-a15";
barebox_set_model("ARM QEMU " MACHINE);
barebox_set_hostname(hostname);
}
#else
static inline void arm_virt_init(void) {}
#endif
extern char __dtbo_qemu_virt_flash_start[];
extern char __dtb_fitimage_pubkey_start[];
static const struct of_device_id virt_of_match[] = {
{ .compatible = "linux,dummy-virt", .data = arm_virt_init },
{ .compatible = "riscv-virtio" },
{ /* Sentinel */},
};
BAREBOX_DEEP_PROBE_ENABLE(virt_of_match);
/*
* We don't have a dedicated qemu-virt device tree and instead rely
* on what Qemu passes us. To be able to get fundamental changes
* in very early, we forego having a board driver here and do this
* directly in the initcall.
*/
static int virt_board_driver_init(void)
{
struct device_node *root = of_get_root_node();
struct device_node *flash, *overlay, *pubkey;
const struct of_device_id *id;
void (*init)(void);
id = of_match_node(virt_of_match, root);
if (!id)
return 0;
if (id->data) {
init = id->data;
init();
}
/*
* Catch both old Qemu versions that place /flash in /soc and
* configurations, where the first flash bank is secure-world only
*/
flash = of_find_node_by_path(PARTS_TARGET_PATH_STR);
if (flash && of_device_is_available(flash)) {
overlay = of_unflatten_dtb(__dtbo_qemu_virt_flash_start, INT_MAX);
of_overlay_apply_tree(root, overlay);
}
pubkey = of_unflatten_dtb(__dtb_fitimage_pubkey_start, INT_MAX);
of_merge_nodes(root, pubkey);
/* fragment may have added aliases to the DT */
of_alias_scan();
/* of_probe() will happen later at of_populate_initcall */
return 0;
}
postcore_initcall(virt_board_driver_init);
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