mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
3696a8a426
This patch provides core support for CM-X270 platform. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
|
|
* linux/include/asm-arm/arch-pxa/memory.h
|
|
*
|
|
* Author: Nicolas Pitre
|
|
* Copyright: (C) 2001 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 version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
|
#define __ASM_ARCH_MEMORY_H
|
|
|
|
/*
|
|
* Physical DRAM offset.
|
|
*/
|
|
#define PHYS_OFFSET UL(0xa0000000)
|
|
|
|
/*
|
|
* Virtual view <-> DMA view memory address translations
|
|
* virt_to_bus: Used to translate the virtual address to an
|
|
* address suitable to be passed to set_dma_addr
|
|
* bus_to_virt: Used to convert an address for DMA operations
|
|
* to an address that the kernel can use.
|
|
*/
|
|
#define __virt_to_bus(x) __virt_to_phys(x)
|
|
#define __bus_to_virt(x) __phys_to_virt(x)
|
|
|
|
/*
|
|
* The nodes are matched with the physical SDRAM banks as follows:
|
|
*
|
|
* node 0: 0xa0000000-0xa3ffffff --> 0xc0000000-0xc3ffffff
|
|
* node 1: 0xa4000000-0xa7ffffff --> 0xc4000000-0xc7ffffff
|
|
* node 2: 0xa8000000-0xabffffff --> 0xc8000000-0xcbffffff
|
|
* node 3: 0xac000000-0xafffffff --> 0xcc000000-0xcfffffff
|
|
*
|
|
* This needs a node mem size of 26 bits.
|
|
*/
|
|
#define NODE_MEM_SIZE_BITS 26
|
|
|
|
#if !defined(__ASSEMBLY__) && defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
|
|
void cmx270_pci_adjust_zones(int node, unsigned long *size,
|
|
unsigned long *holes);
|
|
|
|
#define arch_adjust_zones(node, size, holes) \
|
|
cmx270_pci_adjust_zones(node, size, holes)
|
|
|
|
#define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_64M - 1)
|
|
#endif
|
|
|
|
#endif
|