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* ARM: uniphier: make SPL optional for ARVv8 SoCsMasahiro Yamada2017-01-22-1/+4
| | | | | | | | | | | | | | | | | | We may want to run different firmware before running U-Boot. For example, ARM Trusted Firmware runs before U-Boot, making U-Boot a non-secure world boot loader. In this case, the SoC might be initialized there, which enables us to skip SPL entirely. This commit removes "select SPL" to make it configurable. This also enables the Multi SoC support for the UniPhier ARMv8 SoCs. (CONFIG_ARCH_UNIPHIER_V8_MULTI) Thanks to the driver model and Device Tree, the U-Boot proper part is now written in a generic way. The board/SoC parameters reside in DT. The Multi SoC support increases the memory footprint a bit, but the U-Boot proper does not have strict memory constraint. This will mitigate the per-SoC (sometimes per-board) defconfig burden. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()Masahiro Yamada2016-07-24-15/+12
| | | | | | | | This does not have much impact on behavior, but makes code look more more like Linux. The use of devm_ioremap() often helps to delete .remove callbacks entirely. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* armv8: mmu: Add support of non-identical mappingYork Sun2016-07-15-2/+4
| | | | | | | Introduce virtual and physical addresses in the mapping table. This change have no impact on existing boards because they all use idential mapping. Signed-off-by: York Sun <york.sun@nxp.com>
* ARM: uniphier: insert dsb barrier to ensure visibility of storeMasahiro Yamada2016-06-09-2/+2
| | | | | | | | | | | | I noticed secondary CPUs sometimes fail to wake up, and the root cause is that the sev instruction wakes up slave CPUs before the preceding the register write is observed by them. The read-back of the accessed register does not guarantee the order. In order to ensure the order between the register write and the sev instruction, a dsb instruction should be executed prior to the sev. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: uniphier: add PH1-LD20 SoC supportMasahiro Yamada2016-04-24-0/+167
This is the first ARMv8 SoC from Socionext Inc. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>