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1cf46c42d7
1. remove __REG macro 2. add (void __iomem *) to io_p2v macro 3. add (phys_addr_t) to io_v2p macro 4. add PKUNITY_AHB_BASE and PKUNITY_APB_BASE definitions 5. modify all PKUNITY_mmio_BASEs from physical addr to virtual addr 6. adjust prefix macro for all usage of PKUNITY_mmio_BASEs -- by advice with Arnd Bergmann Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* linux/arch/unicore32/include/mach/memory.h
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*
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Copyright (C) 2001-2010 GUAN Xue-tao
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __MACH_PUV3_MEMORY_H__
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#define __MACH_PUV3_MEMORY_H__
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#include <mach/hardware.h>
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/* Physical DRAM offset. */
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#define PHYS_OFFSET UL(0x00000000)
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/* The base address of exception vectors. */
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#define VECTORS_BASE UL(0xffff0000)
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/* The base address of kuser area. */
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#define KUSER_BASE UL(0x80000000)
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#ifdef __ASSEMBLY__
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/* The byte offset of the kernel image in RAM from the start of RAM. */
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#define KERNEL_IMAGE_START 0x00408000
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#endif
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#if !defined(__ASSEMBLY__) && defined(CONFIG_PCI)
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void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes);
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#define arch_adjust_zones(size, holes) \
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puv3_pci_adjust_zones(size, holes)
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#endif
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/*
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* PCI controller in PKUnity-3 masks highest 5-bit for upstream channel,
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* so we must limit the DMA allocation within 128M physical memory for
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* supporting PCI devices.
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*/
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#define PCI_DMA_THRESHOLD (PHYS_OFFSET + SZ_128M - 1)
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#define is_pcibus_device(dev) (dev && \
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(strncmp(dev->bus->name, "pci", 3) == 0))
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#define __virt_to_pcibus(x) (__virt_to_phys((x) + PKUNITY_PCIAHB_BASE))
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#define __pcibus_to_virt(x) (__phys_to_virt(x) - PKUNITY_PCIAHB_BASE)
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/* kuser area */
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#define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000))
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#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE)
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/* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */
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#define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \
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+ (VECTORS_BASE))
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#endif
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