pciu.h
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上传日期:2013-04-10
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- /*
- * FILE NAME
- * arch/mips/vr41xx/common/pciu.h
- *
- * BRIEF MODULE DESCRIPTION
- * Include file for PCI Control Unit of the NEC VR4100 series.
- *
- * Author: Yoichi Yuasa
- * yyuasa@mvista.com or source@mvista.com
- *
- * Copyright 2002 MontaVista Software 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.
- */
- /*
- * Changes:
- * MontaVista Software Inc. <yyuasa@mvista.com> or <source@mvista.com>
- * - New creation, NEC VR4122 and VR4131 are supported.
- */
- #ifndef __VR41XX_PCIU_H
- #define __VR41XX_PCIU_H
- #include <linux/config.h>
- #include <asm/addrspace.h>
- #define BIT(x) (1 << (x))
- #define PCIMMAW1REG KSEG1ADDR(0x0f000c00)
- #define PCIMMAW2REG KSEG1ADDR(0x0f000c04)
- #define PCITAW1REG KSEG1ADDR(0x0f000c08)
- #define PCITAW2REG KSEG1ADDR(0x0f000c0c)
- #define PCIMIOAWREG KSEG1ADDR(0x0f000c10)
- #define INTERNAL_BUS_BASE_ADDRESS 0xff000000
- #define ADDRESS_MASK 0x000fe000
- #define PCI_ACCESS_ENABLE BIT(12)
- #define PCI_ADDRESS_SETTING 0x000000ff
- #define PCICONFDREG KSEG1ADDR(0x0f000c14)
- #define PCICONFAREG KSEG1ADDR(0x0f000c18)
- #define PCIMAILREG KSEG1ADDR(0x0f000c1c)
- #define BUSERRADREG KSEG1ADDR(0x0f000c24)
- #define ERROR_ADDRESS 0xfffffffc
- #define INTCNTSTAREG KSEG1ADDR(0x0f000c28)
- #define MABTCLR BIT(31)
- #define TRDYCLR BIT(30)
- #define PARCLR BIT(29)
- #define MBCLR BIT(28)
- #define SERRCLR BIT(27)
- #define PCIEXACCREG KSEG1ADDR(0x0f000c2c)
- #define UNLOCK BIT(1)
- #define EAREQ BIT(0)
- #define PCIRECONTREG KSEG1ADDR(0x0f000c30)
- #define RTRYCNT 0x000000ff
- #define PCIENREG KSEG1ADDR(0x0f000c34)
- #define CONFIG_DONE BIT(2)
- #define PCICLKSELREG KSEG1ADDR(0x0f000c38)
- #define EQUAL_VTCLOCK 0x00000002
- #define HALF_VTCLOCK 0x00000000
- #define QUARTER_VTCLOCK 0x00000001
- #define PCITRDYVREG KSEG1ADDR(0x0f000c3c)
- #define PCICLKRUNREG KSEG1ADDR(0x0f000c60)
- #define PCIU_CONFIGREGS_BASE KSEG1ADDR(0x0f000d00)
- #define VENDORIDREG KSEG1ADDR(0x0f000d00)
- #define DEVICEIDREG KSEG1ADDR(0x0f000d00)
- #define COMMANDREG KSEG1ADDR(0x0f000d04)
- #define STATUSREG KSEG1ADDR(0x0f000d04)
- #define REVIDREG KSEG1ADDR(0x0f000d08)
- #define CLASSREG KSEG1ADDR(0x0f000d08)
- #define CACHELSREG KSEG1ADDR(0x0f000d0c)
- #define LATTIMEREG KSEG1ADDR(0x0f000d0c)
- #define MAILBAREG KSEG1ADDR(0x0f000d10)
- #define PCIMBA1REG KSEG1ADDR(0x0f000d14)
- #define PCIMBA2REG KSEG1ADDR(0x0f000d18)
- #define INTLINEREG KSEG1ADDR(0x0f000d3c)
- #define INTPINREG KSEG1ADDR(0x0f000d3c)
- #define RETVALREG KSEG1ADDR(0x0f000d40)
- #define PCIAPCNTREG KSEG1ADDR(0x0f000d40)
- #define MPCIINTREG KSEG1ADDR(0x0f0000b2)
- #define MAX_PCI_CLOCK 33333333
- #define PCIU_CLOCK 0x0080
- #define PCI_CLOCK 0x2000
- static inline int pciu_read_config_byte(int where, u8 *val)
- {
- u32 data;
- data = readl(PCIU_CONFIGREGS_BASE + where);
- *val = (u8)(data >> ((where & 3) << 3));
- return PCIBIOS_SUCCESSFUL;
- }
- static inline int pciu_read_config_word(int where, u16 *val)
- {
- u32 data;
- if (where & 1)
- return PCIBIOS_BAD_REGISTER_NUMBER;
- data = readl(PCIU_CONFIGREGS_BASE + where);
- *val = (u16)(data >> ((where & 2) << 3));
- return PCIBIOS_SUCCESSFUL;
- }
- static inline int pciu_read_config_dword(int where, u32 *val)
- {
- if (where & 3)
- return PCIBIOS_BAD_REGISTER_NUMBER;
- *val = readl(PCIU_CONFIGREGS_BASE + where);
- return PCIBIOS_SUCCESSFUL;
- }
- static inline int pciu_write_config_byte(int where, u8 val)
- {
- writel(val, PCIU_CONFIGREGS_BASE + where);
- return 0;
- }
- static inline int pciu_write_config_word(int where, u16 val)
- {
- writel(val, PCIU_CONFIGREGS_BASE + where);
- return 0;
- }
- static inline int pciu_write_config_dword(int where, u32 val)
- {
- writel(val, PCIU_CONFIGREGS_BASE + where);
- return 0;
- }
- #endif /* __VR41XX_PCIU_H */