linux/include/asm-frv/mb86943a.h
David Howells 04668873da FRV: Enable the MB86943 PCI arbiter correctly
Enable the MB93090 motherboard's MB86943 PCI arbiter correctly by assigning to
the register rather than comparing against it.  This is required to support
bus mastering.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-01 20:48:17 -07:00

42 lines
1.8 KiB
C

/* mb86943a.h: MB86943 SPARClite <-> PCI bridge registers
*
* Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* 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 _ASM_MB86943A_H
#define _ASM_MB86943A_H
#include <asm/mb-regs.h>
#define __reg_MB86943_sl_ctl *(volatile uint32_t *) (__region_CS1 + 0x00)
#define MB86943_SL_CTL_BUS_WIDTH_64 0x00000001
#define MB86943_SL_CTL_AS_HOST 0x00000002
#define MB86943_SL_CTL_DRCT_MASTER_SWAP 0x00000004
#define MB86943_SL_CTL_DRCT_SLAVE_SWAP 0x00000008
#define MB86943_SL_CTL_PCI_CONFIG_SWAP 0x00000010
#define MB86943_SL_CTL_ECS0_ENABLE 0x00000020
#define MB86943_SL_CTL_ECS1_ENABLE 0x00000040
#define MB86943_SL_CTL_ECS2_ENABLE 0x00000080
#define __reg_MB86943_ecs_ctl(N) *(volatile uint32_t *) (__region_CS1 + 0x08 + (0x08*(N)))
#define __reg_MB86943_ecs_range(N) *(volatile uint32_t *) (__region_CS1 + 0x20 + (0x10*(N)))
#define __reg_MB86943_ecs_base(N) *(volatile uint32_t *) (__region_CS1 + 0x28 + (0x10*(N)))
#define __reg_MB86943_sl_pci_io_range *(volatile uint32_t *) (__region_CS1 + 0x50)
#define __reg_MB86943_sl_pci_io_base *(volatile uint32_t *) (__region_CS1 + 0x58)
#define __reg_MB86943_sl_pci_mem_range *(volatile uint32_t *) (__region_CS1 + 0x60)
#define __reg_MB86943_sl_pci_mem_base *(volatile uint32_t *) (__region_CS1 + 0x68)
#define __reg_MB86943_pci_sl_io_base *(volatile uint32_t *) (__region_CS1 + 0x70)
#define __reg_MB86943_pci_sl_mem_base *(volatile uint32_t *) (__region_CS1 + 0x78)
#define __reg_MB86943_pci_arbiter *(volatile uint32_t *) (__region_CS2 + 0x01300014)
#define MB86943_PCIARB_EN 0x00000001
#endif /* _ASM_MB86943A_H */