diff options
Diffstat (limited to 'arch/mips/fw/arc/memory.c')
| -rw-r--r-- | arch/mips/fw/arc/memory.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c index dbbcddc82823..fb78e6fd5de4 100644 --- a/arch/mips/fw/arc/memory.c +++ b/arch/mips/fw/arc/memory.c @@ -22,7 +22,6 @@ #include <asm/sgialib.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/bootinfo.h> #undef DEBUG @@ -33,12 +32,12 @@ static phys_addr_t prom_mem_size[MAX_PROM_MEM] __initdata; static unsigned int nr_prom_mem __initdata; /* - * For ARC firmware memory functions the unit of meassuring memory is always + * For ARC firmware memory functions the unit of measuring memory is always * a 4k page of memory */ #define ARC_PAGE_SHIFT 12 -struct linux_mdesc * __init ArcGetMemoryDescriptor(struct linux_mdesc *Current) +static struct linux_mdesc * __init ArcGetMemoryDescriptor(struct linux_mdesc *Current) { return (struct linux_mdesc *) ARC_CALL1(get_mdesc, Current); } @@ -69,20 +68,24 @@ static char *arc_mtypes[8] = { : arc_mtypes[a.arc] #endif +enum { + mem_free, mem_prom_used, mem_reserved +}; + static inline int memtype_classify_arcs(union linux_memtypes type) { switch (type.arcs) { case arcs_fcontig: case arcs_free: - return BOOT_MEM_RAM; + return mem_free; case arcs_atmp: - return BOOT_MEM_ROM_DATA; + return mem_prom_used; case arcs_eblock: case arcs_rvpage: case arcs_bmem: case arcs_prog: case arcs_aperm: - return BOOT_MEM_RESERVED; + return mem_reserved; default: BUG(); } @@ -94,15 +97,15 @@ static inline int memtype_classify_arc(union linux_memtypes type) switch (type.arc) { case arc_free: case arc_fcontig: - return BOOT_MEM_RAM; + return mem_free; case arc_atmp: - return BOOT_MEM_ROM_DATA; + return mem_prom_used; case arc_eblock: case arc_rvpage: case arc_bmem: case arc_prog: case arc_aperm: - return BOOT_MEM_RESERVED; + return mem_reserved; default: BUG(); } @@ -117,7 +120,7 @@ static int __init prom_memtype_classify(union linux_memtypes type) return memtype_classify_arc(type); } -void __init prom_meminit(void) +void __weak __init prom_meminit(void) { struct linux_mdesc *p; @@ -144,9 +147,17 @@ void __init prom_meminit(void) size = p->pages << ARC_PAGE_SHIFT; type = prom_memtype_classify(p->type); - add_memory_region(base, size, type); + /* ignore mirrored RAM on IP28/IP30 */ + if (base < PHYS_OFFSET) + continue; + + memblock_add(base, size); + + if (type == mem_reserved) + memblock_reserve(base, size); - if (type == BOOT_MEM_ROM_DATA) { + if (type == mem_prom_used) { + memblock_reserve(base, size); if (nr_prom_mem >= 5) { pr_err("Too many ROM DATA regions"); continue; |