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of: implement pci_address_to_pio as weak function

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Implement pci_address_to_pio as weak function to remove the dependency on
asm/prom.h. This is in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Rob Herring
2013-09-07 14:07:11 -05:00
parent ba904f0649
commit 25ff79443c
8 changed files with 9 additions and 43 deletions
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10
arch/x86/kernel/devicetree.c
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@@ -27,16 +27,6 @@ char __initdata cmd_line[COMMAND_LINE_SIZE];
int __initdata of_ioapic;
unsigned long pci_address_to_pio(phys_addr_t address)
{
/*
* The ioport address can be directly used by inX / outX
*/
BUG_ON(address >= (1 << 16));
return (unsigned long)address;
}
EXPORT_SYMBOL_GPL(pci_address_to_pio);
void __init early_init_dt_scan_chosen_arch(unsigned long node)
{
BUG();