1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2011 by amaury Pouly
12 * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
13 * and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
23 ****************************************************************************/
29 #include "gcc_extensions.h"
31 #include "backlight.h"
32 #include "button-target.h"
38 #include "system-target.h"
39 #include "fmradio_i2c.h"
42 #include "usb-target.h"
44 #include "clkctrl-imx233.h"
46 #ifdef HAVE_BOOTLOADER_USB_MODE
47 static void usb_mode(int connect_timeout
)
52 usb_start_monitoring();
54 /* Wait for threads to connect or cable is pulled */
55 printf("USB: Connecting");
57 long end_tick
= current_tick
+ connect_timeout
;
61 button
= button_get_w_tmo(HZ
/10);
63 if(button
== SYS_USB_CONNECTED
)
66 if(TIME_AFTER(current_tick
, end_tick
))
68 /* Timed out waiting for the connect - will happen when connected
69 * to a charger through the USB port */
70 printf("USB: Timed out");
75 break; /* Cable pulled */
78 if(button
== SYS_USB_CONNECTED
)
80 /* Got the message - wait for disconnect */
81 printf("Bootloader USB mode");
83 usb_acknowledge(SYS_USB_CONNECTED_ACK
);
87 button
= button_get_w_tmo(HZ
/2);
88 if(button
== SYS_USB_DISCONNECTED
)
93 /* Put drivers initialized for USB connection into a known state */
96 #else /* !HAVE_BOOTLOADER_USB_MODE */
97 static void usb_mode(int connect_timeout
)
99 (void) connect_timeout
;
101 #endif /* HAVE_BOOTLOADER_USB_MODE */
103 void main(uint32_t arg
) NORETURN_ATTR
;
104 void main(uint32_t arg
)
106 unsigned char* loadbuffer
;
108 void(*kernel_entry
)(void);
125 //button_debug_screen();
126 printf("arg=%x", arg
);
128 #ifdef SANSA_FUZEPLUS
129 extern void imx233_mmc_disable_window(void);
130 if(arg
== 0xfee1dead)
132 printf("Disable MMC window.");
133 imx233_mmc_disable_window();
137 ret
= storage_init();
139 error(EATA
, ret
, true);
141 /* NOTE: allow disk_init and disk_mount_all to fail since we can do USB after.
142 * We need this order to determine the correct logical sector size */
143 while(!disk_init(IF_MV(0)))
144 printf("disk_init failed!");
146 if((ret
= disk_mount_all()) <= 0)
147 error(EDISK
, ret
, false);
152 printf("Loading firmware");
154 loadbuffer
= (unsigned char*)DRAM_ORIG
; /* DRAM */
155 buffer_size
= (int)(loadbuffer
+ DRAM_SIZE
- TTB_SIZE
);
157 while((ret
= load_firmware(loadbuffer
, BOOTFILE
, buffer_size
)) < 0)
159 error(EBOOTFILE
, ret
, true);
162 kernel_entry
= (void*) loadbuffer
;
163 cpucache_invalidate();
166 printf("ERR: Failed to boot");