linux/include/asm-arm/arch-ixp2000/ixdp2x00.h
Lennert Buytenhek 91f6a589fb [PATCH] ARM: 2753/1: move ixdp* cpld mappings
Patch from Lennert Buytenhek

All ixdp platforms currently have a cpld mapped in at 0xfafff000.
Since this address is not 1M-aligned, a regular page mapping will be
used instead of a section mapping, which opens up the possibility of
triggering ixp2400 erratum #66 as we only do the XCB=101 workaround
thing for section mappings.
There is still a lot of space higher up in the virtual memory map
for 1M mappings, so move the cpld mapping to 0xfe000000 and make it
1M big so that a section mapping will be used for it.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-26 22:24:13 +01:00

94 lines
2.8 KiB
C

/*
* include/asm-arm/arch-ixp2000/ixdp2x00.h
*
* Register and other defines for IXDP2[48]00 platforms
*
* Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
* Maintainer: Deepak Saxena <dsaxena@plexity.net>
*
* Copyright (C) 2002 Intel Corp.
* Copyright (C) 2003-2004 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.
*/
#ifndef _IXDP2X00_H_
#define _IXDP2X00_H_
/*
* On board CPLD memory map
*/
#define IXDP2X00_PHYS_CPLD_BASE 0xc7000000
#define IXDP2X00_VIRT_CPLD_BASE 0xfe000000
#define IXDP2X00_CPLD_SIZE 0x00100000
#define IXDP2X00_CPLD_REG(x) \
(volatile unsigned long *)(IXDP2X00_VIRT_CPLD_BASE | x)
/*
* IXDP2400 CPLD registers
*/
#define IXDP2400_CPLD_SYSLED IXDP2X00_CPLD_REG(0x0)
#define IXDP2400_CPLD_DISP_DATA IXDP2X00_CPLD_REG(0x4)
#define IXDP2400_CPLD_CLOCK_SPEED IXDP2X00_CPLD_REG(0x8)
#define IXDP2400_CPLD_INT_STAT IXDP2X00_CPLD_REG(0xc)
#define IXDP2400_CPLD_REV IXDP2X00_CPLD_REG(0x10)
#define IXDP2400_CPLD_SYS_CLK_M IXDP2X00_CPLD_REG(0x14)
#define IXDP2400_CPLD_SYS_CLK_N IXDP2X00_CPLD_REG(0x18)
#define IXDP2400_CPLD_INT_MASK IXDP2X00_CPLD_REG(0x48)
/*
* IXDP2800 CPLD registers
*/
#define IXDP2800_CPLD_INT_STAT IXDP2X00_CPLD_REG(0x0)
#define IXDP2800_CPLD_INT_MASK IXDP2X00_CPLD_REG(0x140)
#define IXDP2X00_GPIO_I2C_ENABLE 0x02
#define IXDP2X00_GPIO_SCL 0x07
#define IXDP2X00_GPIO_SDA 0x06
/*
* PCI devfns for on-board devices. We need these to be able to
* properly translate IRQs and for device removal.
*/
#define IXDP2400_SLAVE_ENET_DEVFN 0x18 /* Bus 1 */
#define IXDP2400_MASTER_ENET_DEVFN 0x20 /* Bus 1 */
#define IXDP2400_MEDIA_DEVFN 0x28 /* Bus 1 */
#define IXDP2400_SWITCH_FABRIC_DEVFN 0x30 /* Bus 1 */
#define IXDP2800_SLAVE_ENET_DEVFN 0x20 /* Bus 1 */
#define IXDP2800_MASTER_ENET_DEVFN 0x18 /* Bus 1 */
#define IXDP2800_SWITCH_FABRIC_DEVFN 0x30 /* Bus 1 */
#define IXDP2X00_P2P_DEVFN 0x20 /* Bus 0 */
#define IXDP2X00_21555_DEVFN 0x30 /* Bus 0 */
#define IXDP2X00_SLAVE_NPU_DEVFN 0x28 /* Bus 1 */
#define IXDP2X00_PMC_DEVFN 0x38 /* Bus 1 */
#define IXDP2X00_MASTER_NPU_DEVFN 0x38 /* Bus 1 */
#ifndef __ASSEMBLY__
/*
* Master NPU will always have flash and be PCI master.
* Slave NPU may or may not have flash but will never be PCI master.
*/
static inline unsigned int ixdp2x00_master_npu(void)
{
return ((ixp2000_has_flash()) && (ixp2000_is_pcimaster()));
}
/*
* Helper functions used by ixdp2400 and ixdp2800 specific code
*/
void ixdp2x00_init_irq(volatile unsigned long*, volatile unsigned long *, unsigned long);
void ixdp2x00_slave_pci_postinit(void);
void ixdp2x00_init_machine(void);
void ixdp2x00_map_io(void);
#endif
#endif /*_IXDP2X00_H_ */