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Rev 1737 Rev 1738
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	mtspr dbat2l, r30
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	mtspr dbat2l, r30
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	mtspr dbat3u, r30
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	mtspr dbat3u, r30
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	mtspr dbat3l, r30
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	mtspr dbat3l, r30
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	# create empty page hash table FIXME
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	# create empty Page Hash Table
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	# on top of memory, size 64 KB
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	DEBUG_pht
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	DEBUG_pht
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	lis r31, 0x07ff
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	ori r31, r31, 0x0000
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	lwz r31, 0(r3)                # r31 = memory size
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	li r30, 0x4000
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	lis r30, 65536@h
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	ori r30, r30, 65536@l         # r30 = 65536
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	subi r29, r30, 1              # r29 = 65535
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	sub r31, r31, r30
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	andc r31, r31, r29            # pht = ALIGN_DOWN(memory_size - 65536, 65536)
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	mtsdr1 r31
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	li r29, 2
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	srw r30, r30, r29             # r30 = 16384
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	li r29, 0
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	li r29, 0
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	pht_clear:
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	pht_clear:
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		# write zeroes
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		# write zeroes
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		DEBUG_end_pht_clear
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		DEBUG_end_pht_clear
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	clear_end:
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	clear_end:
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	lis r31, 0x07ff
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	ori r31, r31, 0x0000
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	mtsdr1 r31
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#ifdef CONFIG_BAT
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#ifdef CONFIG_BAT
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	# create BAT identity mapping
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	# create BAT identity mapping
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	DEBUG_mapping
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	DEBUG_mapping
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	lwz r31, 0(r3)
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	lwz r31, 0(r3)                # r31 = memory size
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	lis r29, 0x0002
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	lis r29, 0x0002
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	cmpw r31, r29
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	cmpw r31, r29
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	blt no_bat                    # less than 128 KB -> no BAT
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	blt no_bat                    # less than 128 KB -> no BAT
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