6955d47610
to both the EEPROM *and* the PHY on the Ethernet interface now, at least, though it is still not completely working. Many thanks to Stephen Goadhouse at ADI for some hints.
101 lines
2.8 KiB
ArmAsm
101 lines
2.8 KiB
ArmAsm
/* $NetBSD: becc_pci_space_asm.S,v 1.1 2003/05/30 18:38:02 thorpej Exp $ */
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/*
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* Copyright (c) 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arm/asm.h>
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#include <arm/cpuconf.h>
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/*
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* Bus space functions for BECC PCI space access. We have to swizzle
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* the address for 1 and 2 byte accesses when in big-endian mode.
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*/
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/*
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* read single
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*/
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ENTRY(becc_pci_bs_r_1)
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#ifdef __ARMEB__
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add r1, r1, r2
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eor r1, r1, #0x3
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ldrb r0, [r1]
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#else
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ldrb r0, [r1, r2]
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#endif /* __ARMEB__ */
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mov pc, lr
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ENTRY(becc_pci_bs_r_2)
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#ifdef __ARMEB__
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add r1, r1, r2
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eor r1, r1, #0x2
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ldrh r0, [r1]
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#else
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ldrh r0, [r1, r2]
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#endif /* __ARMEB__ */
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mov pc, lr
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ENTRY(becc_pci_bs_r_4)
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ldr r0, [r1, r2]
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mov pc, lr
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/*
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* write single
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*/
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ENTRY(becc_pci_bs_w_1)
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#ifdef __ARMEB__
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add r1, r1, r2
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eor r1, r1, #0x3
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strb r3, [r1]
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#else
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strb r3, [r1, r2]
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#endif /* __ARMEB__ */
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mov pc, lr
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ENTRY(becc_pci_bs_w_2)
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#ifdef __ARMEB__
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add r1, r1, r2
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eor r1, r1, #0x2
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strh r3, [r1]
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#else
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strh r3, [r1, r2]
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#endif /* __ARMEB__ */
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mov pc, lr
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ENTRY(becc_pci_bs_w_4)
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str r3, [r1, r2]
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mov pc, lr
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