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rockbox/firmware/target/mips/ingenic_x1000/spl-x1000.h

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x1000: Redesign SPL, and allow it to flash the bootloader SPL is now designed so core X1000 code is in control of the boot, under the reasonable assumption that the device boots from flash. It should not be too hard to adapt to other X1000 ports. The biggest functional change is that the SPL can now read/write the flash, under the control of a host computer. The SPL relies on the boot ROM for USB communication, so the host has to execute the SPL multiple times following a protocol. Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
2021-04-07 21:11:01 +00:00
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2021 Aidan MacDonald
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __SPL_X1000_H__
#define __SPL_X1000_H__
FiiO M3K: Add dual boot support Change-Id: Ic34d50855b317b5f4073b232dbf458edf82f55e1
2021-06-13 16:39:29 +00:00
/* TODO: this needs some refactoring... */
x1000: Redesign SPL, and allow it to flash the bootloader SPL is now designed so core X1000 code is in control of the boot, under the reasonable assumption that the device boots from flash. It should not be too hard to adapt to other X1000 ports. The biggest functional change is that the SPL can now read/write the flash, under the control of a host computer. The SPL relies on the boot ROM for USB communication, so the host has to execute the SPL multiple times following a protocol. Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
2021-04-07 21:11:01 +00:00
/* Called on a fatal error */
FiiO M3K/X1000: Do system clock initialization in the SPL Initializing the clocks in the SPL brings Rockbox in line with how the FiiO M3K's original SPL works. It's likely other X1000 devices do this too. There was a logic error in the previous setup: the code falsely assumed that DDR memory would always be running from MPLL, but it would be switched to APLL by the bootloader. Rockbox would then try to re-init APLL, albeit with the same parameters. Maybe this was the cause of the boot hang on some units. Change-Id: I64064585e491bbdf1e95fe9428c91a9314f2a917
2021-04-15 02:00:04 +00:00
extern void spl_error(void) __attribute__((noreturn));
x1000: Redesign SPL, and allow it to flash the bootloader SPL is now designed so core X1000 code is in control of the boot, under the reasonable assumption that the device boots from flash. It should not be too hard to adapt to other X1000 ports. The biggest functional change is that the SPL can now read/write the flash, under the control of a host computer. The SPL relies on the boot ROM for USB communication, so the host has to execute the SPL multiple times following a protocol. Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
2021-04-07 21:11:01 +00:00
FiiO M3K: Add dual boot support Change-Id: Ic34d50855b317b5f4073b232dbf458edf82f55e1
2021-06-13 16:39:29 +00:00
/* Called by SPL to handle a main boot */
extern void spl_target_boot(void);
FiiO M3K: New bootloader SPL and UCL-compressed bootloader are now packed into one output, bootloader.m3k, eliminating the separate SPL build phase. The Rockbox bootloader now has a recovery menu, accessible by holding VOL+ when booting, that lets you back up, restore, and update the bootloader from the device. Change-Id: I642c6e5fb83587a013ab2fbfd1adab439561ced2
2021-05-11 12:28:43 +00:00
/* Invoked by SPL main routine to determine the boot option */
x1000: Redesign SPL, and allow it to flash the bootloader SPL is now designed so core X1000 code is in control of the boot, under the reasonable assumption that the device boots from flash. It should not be too hard to adapt to other X1000 ports. The biggest functional change is that the SPL can now read/write the flash, under the control of a host computer. The SPL relies on the boot ROM for USB communication, so the host has to execute the SPL multiple times following a protocol. Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
2021-04-07 21:11:01 +00:00
extern int spl_get_boot_option(void);
FiiO M3K/X1000: Do system clock initialization in the SPL Initializing the clocks in the SPL brings Rockbox in line with how the FiiO M3K's original SPL works. It's likely other X1000 devices do this too. There was a logic error in the previous setup: the code falsely assumed that DDR memory would always be running from MPLL, but it would be switched to APLL by the bootloader. Rockbox would then try to re-init APLL, albeit with the same parameters. Maybe this was the cause of the boot hang on some units. Change-Id: I64064585e491bbdf1e95fe9428c91a9314f2a917
2021-04-15 02:00:04 +00:00
/* Do any setup/initialization needed for the given boot option, this
* will be called right before flushing caches + jumping to the image.
* Typical use is to set up system clocks, etc.
*/
extern void spl_handle_pre_boot(int bootopt);
x1000: Redesign SPL, and allow it to flash the bootloader SPL is now designed so core X1000 code is in control of the boot, under the reasonable assumption that the device boots from flash. It should not be too hard to adapt to other X1000 ports. The biggest functional change is that the SPL can now read/write the flash, under the control of a host computer. The SPL relies on the boot ROM for USB communication, so the host has to execute the SPL multiple times following a protocol. Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
2021-04-07 21:11:01 +00:00
#endif /* __SPL_X1000_H__ */
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