- On ARMv7: LPAE seems to be not friendly that brings a lot of
compile errors.
- On ARMv8: MMU translate table is static defined by mem_map[]
and max 4GB as usual. It is not created dynamically according
to real memory size, that is different from ARMv7.
- 4GB memory is enough for U-Boot on both ARMv7 an ARMv8.
Considering all that, we decide to make max 4GB size to be visiable
for U-Boot, but still pass the real available memory size to kernel
by bidram_fixup() called at late before fixup "/memory" node.
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: Idd5fa769e940b0618446909f8f9edc39f596f072
- Allow request region alloc within the first invisiable region reserved by
bidram when request region has flags M_ATTR_IGNORE_INVISIBLE. This is a
workaround for some firmware memory layout, eg: on RK3308-AArch32, the ATF
region is 0~1M(same as RK3308-AArch64), but the kernel would like to alloc
at 0x00058000.
- Always make kernel reserved-memory alloc successfully and check overlap
with invisible and sysmem allocated regions in sysmem_overflow_check()
before bootm. This makes alloc policy more easier.
Change-Id: I533c710a6e69bd930befda441b9ec64415e3f408
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
If alloc buffer for storage read/write should be aligned to
cacheline size, please add the M_ATTR_CACHELINE_ALIGN flag
for this region.
Change-Id: I1e5d46405ddacfadd1cdb4670f943996d9b66426
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
It helps check whether uncompress kernel overlap with other region
or not.
Change-Id: Ia7e6c027f68c2e8af398824afd8b7580531cb77e
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Because avb android image usually needs a large memory buffer,
always alloc avb android memblk right after U-Boot stack is a
better choice to avoid memblk overlap with others.
Since we have overflow protect magic for U-Boot stack, so we add
a pad(4KB) between them.
Change-Id: I72655d022f7e82f1ed9fbb381424d04bc86ccf6a
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Provide generic id and struct for memory blocks.
Change-Id: I1fe00dfdb8ee8209eca55c8e7ebbedcafa0371a1
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Joseph Chen