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ARM: 7863/1: Let arm_add_memory() always use 64-bit arguments

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The DTB and/or the kernel command line may pass
64-bit addresses regardless of kernel configuration,
so update arm_add_memory() to take 64-bit arguments
independently of the phys_addr_t size.

This allows non-wrapping handling of high memory
banks such as the second memory bank of APE6EVM
(at 0x2_0000_0000) in case of 32-bit phys_addr_t.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Magnus Damm 2013-10-22 17:53:16 +01:00 committed by Russell King
parent 1436c1aa62
commit 6a5014aa03
2 changed files with 4 additions and 4 deletions
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2
arch/arm/include/asm/setup.h
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@ -49,7 +49,7 @@ extern struct meminfo meminfo;
#define bank_phys_end(bank) ((bank)->start + (bank)->size)
#define bank_phys_size(bank) (bank)->size
extern int arm_add_memory(phys_addr_t start, phys_addr_t size);
extern int arm_add_memory(u64 start, u64 size);
extern void early_print(const char *str, ...);
extern void dump_machine_table(void);

6
arch/arm/kernel/setup.c
View File

@ -621,7 +621,7 @@ void __init dump_machine_table(void)
/* can't use cpu_relax() here as it may require MMU setup */;
}
int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
int __init arm_add_memory(u64 start, u64 size)
{
struct membank *bank = &meminfo.bank[meminfo.nr_banks];
@ -671,8 +671,8 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
static int __init early_mem(char *p)
{
static int usermem __initdata = 0;
phys_addr_t size;
phys_addr_t start;
u64 size;
u64 start;
char *endp;
/*