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powerpc/mm/32: add base address to mmu_mapin_ram()

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At the time being, mmu_mapin_ram() always maps RAM from the beginning.
But some platforms like the WII have to map a second block of RAM.

This patch adds to mmu_mapin_ram() the base address of the block.
At the moment, only base address 0 is supported.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy
2019-02-21 19:08:38 +00:00
committed by Michael Ellerman
parent 6d183ca8ba
commit 14e609d693
7 changed files with 9 additions and 9 deletions
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2
arch/powerpc/mm/40x_mmu.c
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@@ -93,7 +93,7 @@ void __init MMU_init_hw(void)
#define LARGE_PAGE_SIZE_16M (1<<24)
#define LARGE_PAGE_SIZE_4M (1<<22)
unsigned long __init mmu_mapin_ram(unsigned long top)
unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top)
{
unsigned long v, s, mapped;
phys_addr_t p;