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1.1
date	2026.09.28.20.41.01;	author rkujawa;	state Exp;
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commitid	qChHdbcPYQzpBqXG;


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1.1
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@Fixes and features for PPC440 core, PPC460EX chip, Sam460ex board.

- Add ebc - PPC440 family External Bus Controller driver.
- Add samfpga - Driver for Sam460ex on-board FPGA (provides 80 GPIOs,
soft power off, 3x led(4), etc. Lives on the ebc.
- Enable PPC460EX on-chip GPIO via gpio_opb.
- Implement a bunch of workarounds for 440/460 hardware bugs.
- Enable pm2fb in SAM460EX config (necessary fixes to pm2fb pending
commit).
- Disable OHCI in SAM460EX config - due to hardware bug operating
two AHB masters at the same time may cause lockups. And it sure does,
there's no known software workaround.
- Don't allow passing PSL_FP from MSR userland bits (userland can cause
panic).
- Fix ghost interrupt deliveries where asserted line re-entered the
exception.
- Ensure interrupt level-mask flag is set by default.
- Tag mmaped DMA address as cacheable unless memory was explicitly
allocated as uncached (only for 440, OEA probably could use it too).
- Fix up 440 TLB decoding in ddb.
- Fix pmap handling of reserved windows that may be mapped from userland.
- Refactor L2 cache handling, make it more maintainable and in style of
other ports.
- Decode PLL straps and let the user know at what base frequency does
the board run (useful if the user wants to apply firmware update,
because images are built for different base freqs).
- Minor trap stuff: decode and clear MCSR in a single helper, dump TLB
on parity checks, user-mode MCHK are now SIGBUS.
- Try to sanely handle the fact that 460EX has SERDES PHY that can
either serve PCIe port or SATA - detect that and attach drivers accordingly.
@
text
@/*	$NetBSD$	*/

/*-
 * Copyright (c) 2026 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Radoslaw Kujawa.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _IBM4XX_IBM4XX_460EX_PLL_H_
#define _IBM4XX_IBM4XX_460EX_PLL_H_

u_int ibm4xx_460ex_base_clock(uint32_t);

#endif /* _IBM4XX_IBM4XX_460EX_PLL_H_ */
@