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dm: sandbox: pci: Add PCI support for sandbox

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Add the required header information, device tree nodes and I/O accessor
functions to support PCI on sandbox. All devices are emulated by drivers
which can be added as required for testing or development.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-03-05 12:25:26 -07:00
parent ff3e077bd2
commit 9569c40668
9 changed files with 284 additions and 7 deletions
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16
arch/sandbox/include/asm/io.h
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@ -22,10 +22,7 @@ void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags);
/*
* Take down a mapping set up by map_physmem().
*/
static inline void unmap_physmem(void *vaddr, unsigned long flags)
{
}
void unmap_physmem(const void *vaddr, unsigned long flags);
/* For sandbox, we want addresses to point into our RAM buffer */
static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
@ -33,8 +30,10 @@ static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
return map_physmem(paddr, len, MAP_WRBACK);
}
/* Remove a previous mapping */
static inline void unmap_sysmem(const void *vaddr)
{
unmap_physmem(vaddr, MAP_WRBACK);
}
/* Map from a pointer to our RAM buffer */
@ -48,6 +47,15 @@ phys_addr_t map_to_sysmem(const void *ptr);
#define writew(v, addr)
#define writel(v, addr)
/* I/O access functions */
int inl(unsigned int addr);
int inw(unsigned int addr);
int inb(unsigned int addr);
void outl(unsigned int value, unsigned int addr);
void outw(unsigned int value, unsigned int addr);
void outb(unsigned int value, unsigned int addr);
#include <iotrace.h>
#endif