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ARM: ixp4xx: avoid use of PCIBIOS_MIN_MEM in io.h

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When using CONFIG_IXP4XX_INDIRECT_PCI, we run into a recursive
header file dependency between mach/io.h and asm/pci.h, resulting
in a build failure:

mach-ixp4xx/include/mach/io.h: In function 'is_pci_memory':
mach-ixp4xx/include/mach/io.h:53:18: error: 'PCIBIOS_MIN_MEM' undeclared (first use in this function)
  return (addr >= PCIBIOS_MIN_MEM) && (addr <= 0x4FFFFFFF);
                  ^
mach-ixp4xx/include/mach/io.h:53:18: note: each undeclared identifier is reported only once for each function it appears in

We can work around this by referencing the pcibios_min_mem variable
directly through an extern declaration, rather than using the macro.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
This commit is contained in:
Arnd Bergmann
2014-03-16 20:23:18 +01:00
parent e9c610a49b
commit 926aabde63
1 changed files with 2 additions and 1 deletions
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3
arch/arm/mach-ixp4xx/include/mach/io.h
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@@ -48,9 +48,10 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
* fallback to the default.
*/
extern unsigned long pcibios_min_mem;
static inline int is_pci_memory(u32 addr)
{
return (addr >= PCIBIOS_MIN_MEM) && (addr <= 0x4FFFFFFF);
return (addr >= pcibios_min_mem) && (addr <= 0x4FFFFFFF);
}
#define writeb(v, p) __indirect_writeb(v, p)