diff options
Diffstat (limited to 'arch/arm/include/asm/hardware/dec21285.h')
| -rw-r--r-- | arch/arm/include/asm/hardware/dec21285.h | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/arch/arm/include/asm/hardware/dec21285.h b/arch/arm/include/asm/hardware/dec21285.h index 0d7552751aaf..894f2a635cbb 100644 --- a/arch/arm/include/asm/hardware/dec21285.h +++ b/arch/arm/include/asm/hardware/dec21285.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * arch/arm/include/asm/hardware/dec21285.h * * Copyright (C) 1998 Russell King * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * DC21285 registers */ #define DC21285_PCI_IACK 0x79000000 @@ -25,6 +22,13 @@ #define DC21285_IO(x) (x) #endif +/* + * The footbridge is programmed to expose the system RAM at 0xe0000000. + * The requirement is that the RAM isn't placed at bus address 0, which + * would clash with VGA cards. + */ +#define BUS_OFFSET 0xe0000000 + #define CSR_PCICMD DC21285_IO(0x0004) #define CSR_CLASSREV DC21285_IO(0x0008) #define CSR_PCICACHELINESIZE DC21285_IO(0x000c) @@ -84,19 +88,6 @@ #define SA110_CNTL_XCSDIR(x) ((x)<<28) #define SA110_CNTL_PCICFN (1 << 31) -/* - * footbridge_cfn_mode() is used when we want - * to check whether we are the central function - */ -#define __footbridge_cfn_mode() (*CSR_SA110_CNTL & SA110_CNTL_PCICFN) -#if defined(CONFIG_FOOTBRIDGE_HOST) && defined(CONFIG_FOOTBRIDGE_ADDIN) -#define footbridge_cfn_mode() __footbridge_cfn_mode() -#elif defined(CONFIG_FOOTBRIDGE_HOST) -#define footbridge_cfn_mode() (1) -#else -#define footbridge_cfn_mode() (0) -#endif - #define CSR_PCIADDR_EXTN DC21285_IO(0x0140) #define CSR_PREFETCHMEMRANGE DC21285_IO(0x0144) #define CSR_XBUS_CYCLE DC21285_IO(0x0148) |