1 /*
2  * Copyright 2016 Google Inc. All Rights Reserved.
3  * Author: gkalsi@google.com (Gurjant Kalsi)
4  *
5  * Use of this source code is governed by a MIT-style
6  * license that can be found in the LICENSE file or at
7  * https://opensource.org/licenses/MIT
8  */
9 
10 #include <app/moot/fsboot.h>
11 #include <app/moot/moot.h>
12 #include <app/moot/stubs.h>
13 #include <app/moot/usbboot.h>
14 
15 #include <app.h>
16 #include <arch.h>
17 #include <assert.h>
18 #include <lk/debug.h>
19 #include <lk/err.h>
20 #include <kernel/event.h>
21 #include <lk/init.h>
22 #include <stdlib.h>
23 #include <lk/trace.h>
24 
do_boot(void)25 static void do_boot(void) {
26     arch_disable_ints();
27     arch_quiesce();
28     arch_chain_load((void *)(moot_system_info.sys_base_addr), 0, 0, 0, 0);
29 }
30 
moot_init(const struct app_descriptor * app)31 static void moot_init(const struct app_descriptor *app) {
32     // Initialize our boot subsystems.
33     init_usb_boot();
34 
35 }
36 
moot_entry(const struct app_descriptor * app,void * args)37 static void moot_entry(const struct app_descriptor *app, void *args) {
38     // Wait a few seconds for the host to try to talk to us over USB.
39     printf("attempting usb boot...\n");
40     attempt_usb_boot();
41 
42     // Check the SPIFlash for an upgrade image.
43     printf("attempting fs boot...\n");
44     attempt_fs_boot();
45 
46     // Boot the main system image.
47     printf("proceeding to boot...\n");
48     do_boot();
49 }
50 
51 APP_START(moot)
52 .init = moot_init,
53 .entry = moot_entry,
54 APP_END
55