Adding more control to physical address mapping
A worker function setup_ddr_tlbs_phys() is introduced to implement more
control on physical address mapping.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/cpu/mpc85xx/tlb.c b/arch/powerpc/cpu/mpc85xx/tlb.c
index f2833a5..e3a71ae 100644
--- a/arch/powerpc/cpu/mpc85xx/tlb.c
+++ b/arch/powerpc/cpu/mpc85xx/tlb.c
@@ -245,7 +245,8 @@
}
#endif
-unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
+unsigned int
+setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg)
{
int i;
unsigned int tlb_size;
@@ -275,21 +276,24 @@
tlb_size = (camsize - 10) / 2;
- set_tlb(1, ram_tlb_address, ram_tlb_address,
+ set_tlb(1, ram_tlb_address, p_addr,
MAS3_SX|MAS3_SW|MAS3_SR, 0,
0, ram_tlb_index, tlb_size, 1);
size -= 1ULL << camsize;
memsize -= 1ULL << camsize;
ram_tlb_address += 1UL << camsize;
+ p_addr += 1UL << camsize;
}
if (memsize)
print_size(memsize, " left unmapped\n");
-
- /*
- * Confirm that the requested amount of memory was mapped.
- */
return memsize_in_meg;
}
+
+unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
+{
+ return
+ setup_ddr_tlbs_phys(CONFIG_SYS_DDR_SDRAM_BASE, memsize_in_meg);
+}
#endif /* !CONFIG_NAND_SPL */