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/*------------------------------------------------------------------------
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. smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device.
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. Copyright (C) 1996 by Erik Stahlman
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. Copyright (C) 2001 Standard Microsystems Corporation
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. Developed by Simple Network Magic Corporation
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. Copyright (C) 2003 Monta Vista Software, Inc.
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. Unified SMC91x driver by Nicolas Pitre
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. This program is free software; you can redistribute it and/or modify
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. it under the terms of the GNU General Public License as published by
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. the Free Software Foundation; either version 2 of the License, or
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. (at your option) any later version.
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. This program is distributed in the hope that it will be useful,
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. but WITHOUT ANY WARRANTY; without even the implied warranty of
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. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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. GNU General Public License for more details.
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. You should have received a copy of the GNU General Public License
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. along with this program; if not, write to the Free Software
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. Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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. Information contained in this file was obtained from the LAN91C111
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. manual from SMC. To get a copy, if you really want one, you can find
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. information under www.smsc.com.
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. Erik Stahlman <erik@vt.edu>
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. Daris A Nevil <dnevil@snmc.com>
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. Nicolas Pitre <nico@fluxnic.net>
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---------------------------------------------------------------------------*/
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#include <linux/smc91x.h>
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* Define your architecture specific bus configuration parameters here.
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#if defined(CONFIG_ARCH_LUBBOCK) ||\
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defined(CONFIG_MACH_MAINSTONE) ||\
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defined(CONFIG_MACH_ZYLONITE) ||\
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defined(CONFIG_MACH_LITTLETON) ||\
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defined(CONFIG_MACH_ZYLONITE2) ||\
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defined(CONFIG_ARCH_VIPER) ||\
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defined(CONFIG_MACH_STARGATE2)
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#include <asm/mach-types.h>
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/* Now the bus width is specified in the platform data
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* pretend here to support all I/O access types
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 1
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#define SMC_IO_SHIFT (lp->io_shift)
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_inl(a, r) readl((a) + (r))
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_outl(v, a, r) writel(v, (a) + (r))
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#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
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#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
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#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
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#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
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#define SMC_IRQ_FLAGS (-1) /* from resource */
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/* We actually can't write halfwords properly if not word aligned */
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static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
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if ((machine_is_mainstone() || machine_is_stargate2()) && reg & 2) {
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unsigned int v = val << 16;
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v |= readl(ioaddr + (reg & ~2)) & 0xffff;
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writel(v, ioaddr + (reg & ~2));
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writew(val, ioaddr + reg);
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#elif defined(CONFIG_SA1100_PLEB)
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/* We can only do 16-bit reads and writes in the static memory space. */
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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#define SMC_IO_SHIFT 0
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
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#define SMC_outw(v, a, r) writew(v, (a) + (r))
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#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
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#define SMC_IRQ_FLAGS (-1)
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#elif defined(CONFIG_SA1100_ASSABET)
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#include <mach/neponset.h>
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/* We can only do 8-bit reads and writes in the static memory space. */
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 0
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#define SMC_CAN_USE_32BIT 0
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/* The first two address lines aren't connected... */
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#define SMC_IO_SHIFT 2
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
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#define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
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#define SMC_IRQ_FLAGS (-1) /* from resource */
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#elif defined(CONFIG_MACH_LOGICPD_PXA270) || \
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defined(CONFIG_MACH_NOMADIK_8815NHK)
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#define SMC_CAN_USE_8BIT 0
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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#define SMC_IO_SHIFT 0
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_outw(v, a, r) writew(v, (a) + (r))
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#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
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#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
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#elif defined(CONFIG_ARCH_INNOKOM) || \
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defined(CONFIG_ARCH_PXA_IDP) || \
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defined(CONFIG_ARCH_RAMSES) || \
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defined(CONFIG_ARCH_PCM027)
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 1
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#define SMC_IO_SHIFT 0
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#define SMC_USE_PXA_DMA 1
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_inl(a, r) readl((a) + (r))
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_outl(v, a, r) writel(v, (a) + (r))
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#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
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#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
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#define SMC_IRQ_FLAGS (-1) /* from resource */
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/* We actually can't write halfwords properly if not word aligned */
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SMC_outw(u16 val, void __iomem *ioaddr, int reg)
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unsigned int v = val << 16;
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v |= readl(ioaddr + (reg & ~2)) & 0xffff;
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writel(v, ioaddr + (reg & ~2));
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writew(val, ioaddr + reg);
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#elif defined(CONFIG_SH_SH4202_MICRODEV)
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#define SMC_CAN_USE_8BIT 0
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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#define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
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#define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
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#define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
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#define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
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#define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
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#define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
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#define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
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#define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
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#define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
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#define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
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#define SMC_IRQ_FLAGS (0)
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#elif defined(CONFIG_M32R)
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#define SMC_CAN_USE_8BIT 0
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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#define SMC_inb(a, r) inb(((u32)a) + (r))
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#define SMC_inw(a, r) inw(((u32)a) + (r))
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#define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
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#define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
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#define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
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#define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
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#define SMC_IRQ_FLAGS (0)
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#define RPC_LSA_DEFAULT RPC_LED_TX_RX
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#define RPC_LSB_DEFAULT RPC_LED_100_10
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#elif defined(CONFIG_ARCH_VERSATILE)
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 1
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_inl(a, r) readl((a) + (r))
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_outw(v, a, r) writew(v, (a) + (r))
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#define SMC_outl(v, a, r) writel(v, (a) + (r))
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#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
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#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
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#define SMC_IRQ_FLAGS (-1) /* from resource */
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#elif defined(CONFIG_MN10300)
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* MN10300/AM33 configuration
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#include <unit/smc91111.h>
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#elif defined(CONFIG_ARCH_MSM)
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#define SMC_CAN_USE_8BIT 0
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_outw(v, a, r) writew(v, (a) + (r))
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#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
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#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
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#define SMC_IRQ_FLAGS IRQF_TRIGGER_HIGH
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#elif defined(CONFIG_COLDFIRE)
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#define SMC_CAN_USE_8BIT 0
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 0
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static inline void mcf_insw(void *a, unsigned char *p, int l)
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static inline void mcf_outsw(void *a, unsigned char *p, int l)
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#define SMC_inw(a, r) _swapw(readw((a) + (r)))
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#define SMC_outw(v, a, r) writew(_swapw(v), (a) + (r))
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#define SMC_insw(a, r, p, l) mcf_insw(a + r, p, l)
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#define SMC_outsw(a, r, p, l) mcf_outsw(a + r, p, l)
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#define SMC_IRQ_FLAGS (IRQF_DISABLED)
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* Default configuration
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#define SMC_CAN_USE_8BIT 1
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#define SMC_CAN_USE_16BIT 1
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#define SMC_CAN_USE_32BIT 1
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#define SMC_IO_SHIFT (lp->io_shift)
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#define SMC_inb(a, r) readb((a) + (r))
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#define SMC_inw(a, r) readw((a) + (r))
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#define SMC_inl(a, r) readl((a) + (r))
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#define SMC_outb(v, a, r) writeb(v, (a) + (r))
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#define SMC_outw(v, a, r) writew(v, (a) + (r))
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#define SMC_outl(v, a, r) writel(v, (a) + (r))
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#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
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#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
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#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
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#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
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#define RPC_LSA_DEFAULT RPC_LED_100_10
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#define RPC_LSB_DEFAULT RPC_LED_TX_RX
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/* store this information for the driver.. */
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* If I have to wait until memory is available to send a
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* packet, I will store the skbuff here, until I get the
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* desired memory. Then, I'll send it out and free it.
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struct sk_buff *pending_tx_skb;
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struct tasklet_struct tx_task;
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/* version/revision of the SMC91x chip */
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/* Contains the current active transmission mode */
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/* Contains the current active receive mode */
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/* Contains the current active receive/phy mode */
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struct mii_if_info mii;
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struct work_struct phy_configure;
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struct net_device *dev;
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#ifdef CONFIG_ARCH_PXA
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/* DMA needs the physical address of the chip */
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struct device *device;
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void __iomem *datacs;
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/* the low address lines on some platforms aren't connected... */
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struct smc91x_platdata cfg;
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#define SMC_8BIT(p) ((p)->cfg.flags & SMC91X_USE_8BIT)
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#define SMC_16BIT(p) ((p)->cfg.flags & SMC91X_USE_16BIT)
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#define SMC_32BIT(p) ((p)->cfg.flags & SMC91X_USE_32BIT)
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#ifdef CONFIG_ARCH_PXA
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* Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
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* always happening in irq context so no need to worry about races. TX is
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* different and probably not worth it for that reason, and not as critical
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* as RX which can overrun memory and lose packets.
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#include <linux/dma-mapping.h>
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#include <mach/dma.h>
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#define SMC_insl(a, r, p, l) \
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smc_pxa_dma_insl(a, lp, r, dev->dma, p, l)
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smc_pxa_dma_insl(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
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u_char *buf, int len)
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u_long physaddr = lp->physaddr;
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/* fallback if no DMA available */
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if (dma == (unsigned char)-1) {
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readsl(ioaddr + reg, buf, len);
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/* 64 bit alignment is required for memory to memory DMA */
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*((u32 *)buf) = SMC_inl(ioaddr, reg);
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dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE);
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DCSR(dma) = DCSR_NODESC;
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DSADR(dma) = physaddr + reg;
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DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
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DCMD_WIDTH4 | (DCMD_LENGTH & len));
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DCSR(dma) = DCSR_NODESC | DCSR_RUN;
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while (!(DCSR(dma) & DCSR_STOPSTATE))
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dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE);
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#define SMC_insw(a, r, p, l) \
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smc_pxa_dma_insw(a, lp, r, dev->dma, p, l)
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smc_pxa_dma_insw(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
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u_char *buf, int len)
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u_long physaddr = lp->physaddr;
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/* fallback if no DMA available */
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if (dma == (unsigned char)-1) {
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readsw(ioaddr + reg, buf, len);
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/* 64 bit alignment is required for memory to memory DMA */
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while ((long)buf & 6) {
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*((u16 *)buf) = SMC_inw(ioaddr, reg);
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dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE);
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DCSR(dma) = DCSR_NODESC;
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DSADR(dma) = physaddr + reg;
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DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
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DCMD_WIDTH2 | (DCMD_LENGTH & len));
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DCSR(dma) = DCSR_NODESC | DCSR_RUN;
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while (!(DCSR(dma) & DCSR_STOPSTATE))
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dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE);
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smc_pxa_dma_irq(int dma, void *dummy)
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#endif /* CONFIG_ARCH_PXA */
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* Everything a particular hardware setup needs should have been defined
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* at this point. Add stubs for the undefined cases, mainly to avoid
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* compilation warnings since they'll be optimized away, or to prevent buggy
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#if ! SMC_CAN_USE_32BIT
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#define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
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#define SMC_outl(x, ioaddr, reg) BUG()
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#define SMC_insl(a, r, p, l) BUG()
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#define SMC_outsl(a, r, p, l) BUG()
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#if !defined(SMC_insl) || !defined(SMC_outsl)
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#define SMC_insl(a, r, p, l) BUG()
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#define SMC_outsl(a, r, p, l) BUG()
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#if ! SMC_CAN_USE_16BIT
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* Any 16-bit access is performed with two 8-bit accesses if the hardware
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* can't do it directly. Most registers are 16-bit so those are mandatory.
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#define SMC_outw(x, ioaddr, reg) \
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unsigned int __val16 = (x); \
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SMC_outb( __val16, ioaddr, reg ); \
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SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
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#define SMC_inw(ioaddr, reg) \
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unsigned int __val16; \
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__val16 = SMC_inb( ioaddr, reg ); \
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__val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
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#define SMC_insw(a, r, p, l) BUG()
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#define SMC_outsw(a, r, p, l) BUG()
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#if !defined(SMC_insw) || !defined(SMC_outsw)
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#define SMC_insw(a, r, p, l) BUG()
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#define SMC_outsw(a, r, p, l) BUG()
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#if ! SMC_CAN_USE_8BIT
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#define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
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#define SMC_outb(x, ioaddr, reg) BUG()
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#define SMC_insb(a, r, p, l) BUG()
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#define SMC_outsb(a, r, p, l) BUG()
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#if !defined(SMC_insb) || !defined(SMC_outsb)
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#define SMC_insb(a, r, p, l) BUG()
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#define SMC_outsb(a, r, p, l) BUG()
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#ifndef SMC_CAN_USE_DATACS
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#define SMC_CAN_USE_DATACS 0
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#define SMC_IO_SHIFT 0
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#ifndef SMC_IRQ_FLAGS
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#define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
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#ifndef SMC_INTERRUPT_PREAMBLE
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#define SMC_INTERRUPT_PREAMBLE
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/* Because of bank switching, the LAN91x uses only 16 I/O ports */
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#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
535
#define SMC_DATA_EXTENT (4)
538
. Bank Select Register:
540
. yyyy yyyy 0000 00xx
542
. yyyy yyyy = 0x33, for identification purposes.
544
#define BANK_SELECT (14 << SMC_IO_SHIFT)
547
// Transmit Control Register
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#define TCR_REG(lp) SMC_REG(lp, 0x0000, 0)
550
#define TCR_ENABLE 0x0001 // When 1 we can transmit
551
#define TCR_LOOP 0x0002 // Controls output pin LBK
552
#define TCR_FORCOL 0x0004 // When 1 will force a collision
553
#define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
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#define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
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#define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
556
#define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
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#define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
558
#define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
559
#define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
561
#define TCR_CLEAR 0 /* do NOTHING */
562
/* the default settings for the TCR register : */
563
#define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
566
// EPH Status Register
568
#define EPH_STATUS_REG(lp) SMC_REG(lp, 0x0002, 0)
569
#define ES_TX_SUC 0x0001 // Last TX was successful
570
#define ES_SNGL_COL 0x0002 // Single collision detected for last tx
571
#define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
572
#define ES_LTX_MULT 0x0008 // Last tx was a multicast
573
#define ES_16COL 0x0010 // 16 Collisions Reached
574
#define ES_SQET 0x0020 // Signal Quality Error Test
575
#define ES_LTXBRD 0x0040 // Last tx was a broadcast
576
#define ES_TXDEFR 0x0080 // Transmit Deferred
577
#define ES_LATCOL 0x0200 // Late collision detected on last tx
578
#define ES_LOSTCARR 0x0400 // Lost Carrier Sense
579
#define ES_EXC_DEF 0x0800 // Excessive Deferral
580
#define ES_CTR_ROL 0x1000 // Counter Roll Over indication
581
#define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
582
#define ES_TXUNRN 0x8000 // Tx Underrun
585
// Receive Control Register
587
#define RCR_REG(lp) SMC_REG(lp, 0x0004, 0)
588
#define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
589
#define RCR_PRMS 0x0002 // Enable promiscuous mode
590
#define RCR_ALMUL 0x0004 // When set accepts all multicast frames
591
#define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
592
#define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
593
#define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
594
#define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
595
#define RCR_SOFTRST 0x8000 // resets the chip
597
/* the normal settings for the RCR register : */
598
#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
599
#define RCR_CLEAR 0x0 // set it to a base state
604
#define COUNTER_REG(lp) SMC_REG(lp, 0x0006, 0)
607
// Memory Information Register
609
#define MIR_REG(lp) SMC_REG(lp, 0x0008, 0)
612
// Receive/Phy Control Register
614
#define RPC_REG(lp) SMC_REG(lp, 0x000A, 0)
615
#define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
616
#define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
617
#define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
618
#define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
619
#define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
621
#ifndef RPC_LSA_DEFAULT
622
#define RPC_LSA_DEFAULT RPC_LED_100
624
#ifndef RPC_LSB_DEFAULT
625
#define RPC_LSB_DEFAULT RPC_LED_FD
628
#define RPC_DEFAULT (RPC_ANEG | RPC_SPEED | RPC_DPLX)
631
/* Bank 0 0x0C is reserved */
633
// Bank Select Register
635
#define BSR_REG 0x000E
640
#define CONFIG_REG(lp) SMC_REG(lp, 0x0000, 1)
641
#define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
642
#define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
643
#define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
644
#define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
646
// Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
647
#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
650
// Base Address Register
652
#define BASE_REG(lp) SMC_REG(lp, 0x0002, 1)
655
// Individual Address Registers
657
#define ADDR0_REG(lp) SMC_REG(lp, 0x0004, 1)
658
#define ADDR1_REG(lp) SMC_REG(lp, 0x0006, 1)
659
#define ADDR2_REG(lp) SMC_REG(lp, 0x0008, 1)
662
// General Purpose Register
664
#define GP_REG(lp) SMC_REG(lp, 0x000A, 1)
669
#define CTL_REG(lp) SMC_REG(lp, 0x000C, 1)
670
#define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
671
#define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
672
#define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
673
#define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
674
#define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
675
#define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
676
#define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
677
#define CTL_STORE 0x0001 // When set stores registers into EEPROM
680
// MMU Command Register
682
#define MMU_CMD_REG(lp) SMC_REG(lp, 0x0000, 2)
683
#define MC_BUSY 1 // When 1 the last release has not completed
684
#define MC_NOP (0<<5) // No Op
685
#define MC_ALLOC (1<<5) // OR with number of 256 byte packets
686
#define MC_RESET (2<<5) // Reset MMU to initial state
687
#define MC_REMOVE (3<<5) // Remove the current rx packet
688
#define MC_RELEASE (4<<5) // Remove and release the current rx packet
689
#define MC_FREEPKT (5<<5) // Release packet in PNR register
690
#define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
691
#define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
694
// Packet Number Register
696
#define PN_REG(lp) SMC_REG(lp, 0x0002, 2)
699
// Allocation Result Register
701
#define AR_REG(lp) SMC_REG(lp, 0x0003, 2)
702
#define AR_FAILED 0x80 // Alocation Failed
705
// TX FIFO Ports Register
707
#define TXFIFO_REG(lp) SMC_REG(lp, 0x0004, 2)
708
#define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
710
// RX FIFO Ports Register
712
#define RXFIFO_REG(lp) SMC_REG(lp, 0x0005, 2)
713
#define RXFIFO_REMPTY 0x80 // RX FIFO Empty
715
#define FIFO_REG(lp) SMC_REG(lp, 0x0004, 2)
719
#define PTR_REG(lp) SMC_REG(lp, 0x0006, 2)
720
#define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
721
#define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
722
#define PTR_READ 0x2000 // When 1 the operation is a read
727
#define DATA_REG(lp) SMC_REG(lp, 0x0008, 2)
730
// Interrupt Status/Acknowledge Register
732
#define INT_REG(lp) SMC_REG(lp, 0x000C, 2)
735
// Interrupt Mask Register
737
#define IM_REG(lp) SMC_REG(lp, 0x000D, 2)
738
#define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
739
#define IM_ERCV_INT 0x40 // Early Receive Interrupt
740
#define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
741
#define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
742
#define IM_ALLOC_INT 0x08 // Set when allocation request is completed
743
#define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
744
#define IM_TX_INT 0x02 // Transmit Interrupt
745
#define IM_RCV_INT 0x01 // Receive Interrupt
748
// Multicast Table Registers
750
#define MCAST_REG1(lp) SMC_REG(lp, 0x0000, 3)
751
#define MCAST_REG2(lp) SMC_REG(lp, 0x0002, 3)
752
#define MCAST_REG3(lp) SMC_REG(lp, 0x0004, 3)
753
#define MCAST_REG4(lp) SMC_REG(lp, 0x0006, 3)
756
// Management Interface Register (MII)
758
#define MII_REG(lp) SMC_REG(lp, 0x0008, 3)
759
#define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
760
#define MII_MDOE 0x0008 // MII Output Enable
761
#define MII_MCLK 0x0004 // MII Clock, pin MDCLK
762
#define MII_MDI 0x0002 // MII Input, pin MDI
763
#define MII_MDO 0x0001 // MII Output, pin MDO
768
/* ( hi: chip id low: rev # ) */
769
#define REV_REG(lp) SMC_REG(lp, 0x000A, 3)
772
// Early RCV Register
774
/* this is NOT on SMC9192 */
775
#define ERCV_REG(lp) SMC_REG(lp, 0x000C, 3)
776
#define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
777
#define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
782
#define EXT_REG(lp) SMC_REG(lp, 0x0000, 7)
790
#define CHIP_91100FD 8
791
#define CHIP_91111FD 9
793
static const char * chip_ids[ 16 ] = {
795
/* 3 */ "SMC91C90/91C92",
800
/* 8 */ "SMC91C100FD",
801
/* 9 */ "SMC91C11xFD",
807
. Receive status bits
809
#define RS_ALGNERR 0x8000
810
#define RS_BRODCAST 0x4000
811
#define RS_BADCRC 0x2000
812
#define RS_ODDFRAME 0x1000
813
#define RS_TOOLONG 0x0800
814
#define RS_TOOSHORT 0x0400
815
#define RS_MULTICAST 0x0001
816
#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
821
* LAN83C183 == LAN91C111 Internal PHY
823
#define PHY_LAN83C183 0x0016f840
824
#define PHY_LAN83C180 0x02821c50
827
* PHY Register Addresses (LAN91C111 Internal PHY)
829
* Generic PHY registers can be found in <linux/mii.h>
831
* These phy registers are specific to our on-board phy.
834
// PHY Configuration Register 1
835
#define PHY_CFG1_REG 0x10
836
#define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
837
#define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
838
#define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
839
#define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
840
#define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
841
#define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
842
#define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
843
#define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
844
#define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
845
#define PHY_CFG1_TLVL_MASK 0x003C
846
#define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
849
// PHY Configuration Register 2
850
#define PHY_CFG2_REG 0x11
851
#define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
852
#define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
853
#define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
854
#define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
856
// PHY Status Output (and Interrupt status) Register
857
#define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
858
#define PHY_INT_INT 0x8000 // 1=bits have changed since last read
859
#define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
860
#define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
861
#define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
862
#define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
863
#define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
864
#define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
865
#define PHY_INT_JAB 0x0100 // 1=Jabber detected
866
#define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
867
#define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
869
// PHY Interrupt/Status Mask Register
870
#define PHY_MASK_REG 0x13 // Interrupt Mask
871
// Uses the same bit definitions as PHY_INT_REG
875
* SMC91C96 ethernet config and status registers.
876
* These are in the "attribute" space.
879
#define ECOR_RESET 0x80
880
#define ECOR_LEVEL_IRQ 0x40
881
#define ECOR_WR_ATTRIB 0x04
882
#define ECOR_ENABLE 0x01
885
#define ECSR_IOIS8 0x20
886
#define ECSR_PWRDWN 0x04
887
#define ECSR_INT 0x02
889
#define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
893
* Macros to abstract register access according to the data bus
894
* capabilities. Please use those and not the in/out primitives.
895
* Note: the following macros do *not* select the bank -- this must
896
* be done separately as needed in the main code. The SMC_REG() macro
897
* only uses the bank argument for debugging purposes (when enabled).
899
* Note: despite inline functions being safer, everything leading to this
900
* should preferably be macros to let BUG() display the line number in
901
* the core source code since we're interested in the top call site
902
* not in any inline function location.
906
#define SMC_REG(lp, reg, bank) \
908
int __b = SMC_CURRENT_BANK(lp); \
909
if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
910
printk( "%s: bank reg screwed (0x%04x)\n", \
917
#define SMC_REG(lp, reg, bank) (reg<<SMC_IO_SHIFT)
921
* Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
922
* aligned to a 32 bit boundary. I tell you that does exist!
923
* Fortunately the affected register accesses can be easily worked around
924
* since we can write zeroes to the preceding 16 bits without adverse
925
* effects and use a 32-bit access.
927
* Enforce it on any 32-bit capable setup for now.
929
#define SMC_MUST_ALIGN_WRITE(lp) SMC_32BIT(lp)
931
#define SMC_GET_PN(lp) \
932
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, PN_REG(lp))) \
933
: (SMC_inw(ioaddr, PN_REG(lp)) & 0xFF))
935
#define SMC_SET_PN(lp, x) \
937
if (SMC_MUST_ALIGN_WRITE(lp)) \
938
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 0, 2)); \
939
else if (SMC_8BIT(lp)) \
940
SMC_outb(x, ioaddr, PN_REG(lp)); \
942
SMC_outw(x, ioaddr, PN_REG(lp)); \
945
#define SMC_GET_AR(lp) \
946
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, AR_REG(lp))) \
947
: (SMC_inw(ioaddr, PN_REG(lp)) >> 8))
949
#define SMC_GET_TXFIFO(lp) \
950
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, TXFIFO_REG(lp))) \
951
: (SMC_inw(ioaddr, TXFIFO_REG(lp)) & 0xFF))
953
#define SMC_GET_RXFIFO(lp) \
954
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, RXFIFO_REG(lp))) \
955
: (SMC_inw(ioaddr, TXFIFO_REG(lp)) >> 8))
957
#define SMC_GET_INT(lp) \
958
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, INT_REG(lp))) \
959
: (SMC_inw(ioaddr, INT_REG(lp)) & 0xFF))
961
#define SMC_ACK_INT(lp, x) \
964
SMC_outb(x, ioaddr, INT_REG(lp)); \
966
unsigned long __flags; \
968
local_irq_save(__flags); \
969
__mask = SMC_inw(ioaddr, INT_REG(lp)) & ~0xff; \
970
SMC_outw(__mask | (x), ioaddr, INT_REG(lp)); \
971
local_irq_restore(__flags); \
975
#define SMC_GET_INT_MASK(lp) \
976
(SMC_8BIT(lp) ? (SMC_inb(ioaddr, IM_REG(lp))) \
977
: (SMC_inw(ioaddr, INT_REG(lp)) >> 8))
979
#define SMC_SET_INT_MASK(lp, x) \
982
SMC_outb(x, ioaddr, IM_REG(lp)); \
984
SMC_outw((x) << 8, ioaddr, INT_REG(lp)); \
987
#define SMC_CURRENT_BANK(lp) SMC_inw(ioaddr, BANK_SELECT)
989
#define SMC_SELECT_BANK(lp, x) \
991
if (SMC_MUST_ALIGN_WRITE(lp)) \
992
SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
994
SMC_outw(x, ioaddr, BANK_SELECT); \
997
#define SMC_GET_BASE(lp) SMC_inw(ioaddr, BASE_REG(lp))
999
#define SMC_SET_BASE(lp, x) SMC_outw(x, ioaddr, BASE_REG(lp))
1001
#define SMC_GET_CONFIG(lp) SMC_inw(ioaddr, CONFIG_REG(lp))
1003
#define SMC_SET_CONFIG(lp, x) SMC_outw(x, ioaddr, CONFIG_REG(lp))
1005
#define SMC_GET_COUNTER(lp) SMC_inw(ioaddr, COUNTER_REG(lp))
1007
#define SMC_GET_CTL(lp) SMC_inw(ioaddr, CTL_REG(lp))
1009
#define SMC_SET_CTL(lp, x) SMC_outw(x, ioaddr, CTL_REG(lp))
1011
#define SMC_GET_MII(lp) SMC_inw(ioaddr, MII_REG(lp))
1013
#define SMC_GET_GP(lp) SMC_inw(ioaddr, GP_REG(lp))
1015
#define SMC_SET_GP(lp, x) \
1017
if (SMC_MUST_ALIGN_WRITE(lp)) \
1018
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 1)); \
1020
SMC_outw(x, ioaddr, GP_REG(lp)); \
1023
#define SMC_SET_MII(lp, x) SMC_outw(x, ioaddr, MII_REG(lp))
1025
#define SMC_GET_MIR(lp) SMC_inw(ioaddr, MIR_REG(lp))
1027
#define SMC_SET_MIR(lp, x) SMC_outw(x, ioaddr, MIR_REG(lp))
1029
#define SMC_GET_MMU_CMD(lp) SMC_inw(ioaddr, MMU_CMD_REG(lp))
1031
#define SMC_SET_MMU_CMD(lp, x) SMC_outw(x, ioaddr, MMU_CMD_REG(lp))
1033
#define SMC_GET_FIFO(lp) SMC_inw(ioaddr, FIFO_REG(lp))
1035
#define SMC_GET_PTR(lp) SMC_inw(ioaddr, PTR_REG(lp))
1037
#define SMC_SET_PTR(lp, x) \
1039
if (SMC_MUST_ALIGN_WRITE(lp)) \
1040
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 4, 2)); \
1042
SMC_outw(x, ioaddr, PTR_REG(lp)); \
1045
#define SMC_GET_EPH_STATUS(lp) SMC_inw(ioaddr, EPH_STATUS_REG(lp))
1047
#define SMC_GET_RCR(lp) SMC_inw(ioaddr, RCR_REG(lp))
1049
#define SMC_SET_RCR(lp, x) SMC_outw(x, ioaddr, RCR_REG(lp))
1051
#define SMC_GET_REV(lp) SMC_inw(ioaddr, REV_REG(lp))
1053
#define SMC_GET_RPC(lp) SMC_inw(ioaddr, RPC_REG(lp))
1055
#define SMC_SET_RPC(lp, x) \
1057
if (SMC_MUST_ALIGN_WRITE(lp)) \
1058
SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 0)); \
1060
SMC_outw(x, ioaddr, RPC_REG(lp)); \
1063
#define SMC_GET_TCR(lp) SMC_inw(ioaddr, TCR_REG(lp))
1065
#define SMC_SET_TCR(lp, x) SMC_outw(x, ioaddr, TCR_REG(lp))
1067
#ifndef SMC_GET_MAC_ADDR
1068
#define SMC_GET_MAC_ADDR(lp, addr) \
1071
__v = SMC_inw(ioaddr, ADDR0_REG(lp)); \
1072
addr[0] = __v; addr[1] = __v >> 8; \
1073
__v = SMC_inw(ioaddr, ADDR1_REG(lp)); \
1074
addr[2] = __v; addr[3] = __v >> 8; \
1075
__v = SMC_inw(ioaddr, ADDR2_REG(lp)); \
1076
addr[4] = __v; addr[5] = __v >> 8; \
1080
#define SMC_SET_MAC_ADDR(lp, addr) \
1082
SMC_outw(addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG(lp)); \
1083
SMC_outw(addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG(lp)); \
1084
SMC_outw(addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG(lp)); \
1087
#define SMC_SET_MCAST(lp, x) \
1089
const unsigned char *mt = (x); \
1090
SMC_outw(mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1(lp)); \
1091
SMC_outw(mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2(lp)); \
1092
SMC_outw(mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3(lp)); \
1093
SMC_outw(mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4(lp)); \
1096
#define SMC_PUT_PKT_HDR(lp, status, length) \
1098
if (SMC_32BIT(lp)) \
1099
SMC_outl((status) | (length)<<16, ioaddr, \
1102
SMC_outw(status, ioaddr, DATA_REG(lp)); \
1103
SMC_outw(length, ioaddr, DATA_REG(lp)); \
1107
#define SMC_GET_PKT_HDR(lp, status, length) \
1109
if (SMC_32BIT(lp)) { \
1110
unsigned int __val = SMC_inl(ioaddr, DATA_REG(lp)); \
1111
(status) = __val & 0xffff; \
1112
(length) = __val >> 16; \
1114
(status) = SMC_inw(ioaddr, DATA_REG(lp)); \
1115
(length) = SMC_inw(ioaddr, DATA_REG(lp)); \
1119
#define SMC_PUSH_DATA(lp, p, l) \
1121
if (SMC_32BIT(lp)) { \
1122
void *__ptr = (p); \
1124
void __iomem *__ioaddr = ioaddr; \
1125
if (__len >= 2 && (unsigned long)__ptr & 2) { \
1127
SMC_outw(*(u16 *)__ptr, ioaddr, \
1131
if (SMC_CAN_USE_DATACS && lp->datacs) \
1132
__ioaddr = lp->datacs; \
1133
SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
1135
__ptr += (__len & ~3); \
1136
SMC_outw(*((u16 *)__ptr), ioaddr, \
1139
} else if (SMC_16BIT(lp)) \
1140
SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
1141
else if (SMC_8BIT(lp)) \
1142
SMC_outsb(ioaddr, DATA_REG(lp), p, l); \
1145
#define SMC_PULL_DATA(lp, p, l) \
1147
if (SMC_32BIT(lp)) { \
1148
void *__ptr = (p); \
1150
void __iomem *__ioaddr = ioaddr; \
1151
if ((unsigned long)__ptr & 2) { \
1153
* We want 32bit alignment here. \
1154
* Since some buses perform a full \
1155
* 32bit fetch even for 16bit data \
1156
* we can't use SMC_inw() here. \
1157
* Back both source (on-chip) and \
1158
* destination pointers of 2 bytes. \
1159
* This is possible since the call to \
1160
* SMC_GET_PKT_HDR() already advanced \
1161
* the source pointer of 4 bytes, and \
1162
* the skb_reserve(skb, 2) advanced \
1163
* the destination pointer of 2 bytes. \
1168
2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1170
if (SMC_CAN_USE_DATACS && lp->datacs) \
1171
__ioaddr = lp->datacs; \
1173
SMC_insl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
1174
} else if (SMC_16BIT(lp)) \
1175
SMC_insw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
1176
else if (SMC_8BIT(lp)) \
1177
SMC_insb(ioaddr, DATA_REG(lp), p, l); \
1180
#endif /* _SMC91X_H_ */