/* * Copyright 2000, 2007-2008 MontaVista Software Inc. * Author: MontaVista Software, Inc. <source@mvista.com * * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc. * * 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 PROVIDED ``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 AUTHOR 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. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA.
*/
staticbool alchemy_dma_coherent(void)
{ switch (alchemy_get_cputype()) { case ALCHEMY_CPU_AU1000: case ALCHEMY_CPU_AU1500: case ALCHEMY_CPU_AU1100: returnfalse; case ALCHEMY_CPU_AU1200: /* Au1200 AB USB does not support coherent memory */ if ((read_c0_prid() & PRID_REV_MASK) == 0) returnfalse; returntrue; default: returntrue;
}
}
if (au1xxx_cpu_needs_config_od()) /* Various early Au1xx0 errata corrected by this */
set_c0_config(1 << 19); /* Set Config[OD] */ else /* Clear to obtain best system bus performance */
clear_c0_config(1 << 19); /* Clear Config[OD] */
#ifdef CONFIG_MIPS_FIXUP_BIGPHYS_ADDR /* This routine should be valid for all Au1x based boards */
phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
{ unsignedlong start = ALCHEMY_PCI_MEMWIN_START; unsignedlong end = ALCHEMY_PCI_MEMWIN_END;
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