Now that we track which TLB CAM entries are used we can allocate
entries on the fly. Change the SPD DDR TLB setup code to assume
we use at most 8 TLBs (or the number free, which ever is fewer).
Signed-off-by: Kumar Gala <ga...@kernel.crashing.org>
---
cpu/mpc85xx/tlb.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/cpu/mpc85xx/tlb.c b/cpu/mpc85xx/tlb.c
index 54339c4..fb10e27 100644
--- a/cpu/mpc85xx/tlb.c
+++ b/cpu/mpc85xx/tlb.c
@@ -225,14 +225,10 @@ void init_addr_map(void)
}
#endif
-#ifndef CONFIG_SYS_DDR_TLB_START
-#define CONFIG_SYS_DDR_TLB_START 8
-#endif
-
unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
{
+ int i;
unsigned int tlb_size;
- unsigned int ram_tlb_index = CONFIG_SYS_DDR_TLB_START;
unsigned int ram_tlb_address = (unsigned int)CONFIG_SYS_DDR_SDRAM_BASE;
unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf;
u64 size, memsize = (u64)memsize_in_meg << 20;
@@ -242,10 +238,14 @@ unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
/* Convert (4^max) kB to (2^max) bytes */
max_cam = max_cam * 2 + 10;
- for (; size && ram_tlb_index < 16; ram_tlb_index++) {
+ for (i = 0; size && i < 8; i++) {
+ int ram_tlb_index = find_free_tlbcam();
u32 camsize = __ilog2_u64(size) & ~1U;
u32 align = __ilog2(ram_tlb_address) & ~1U;
+ if (ram_tlb_index == -1)
+ break;
+
if (align == -2) align = max_cam;
if (camsize > align)
camsize = align;
--
1.6.0.6
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