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| author | Icenowy Zheng <icenowy@aosc.io> | 2018-06-22 20:45:36 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-06-28 10:20:19 +0200 |
| commit | 8818e865aa35493baf7326f9335b8ec6b7d77df7 (patch) | |
| tree | 41bd4a7158d783c5740871436d28a2c0d11580c3 /drivers/bus/Kconfig | |
| parent | a6e3ab0bcc34647365c4dee74fc8707de607c250 (diff) | |
| download | blackbird-op-linux-8818e865aa35493baf7326f9335b8ec6b7d77df7.tar.gz blackbird-op-linux-8818e865aa35493baf7326f9335b8ec6b7d77df7.zip | |
bus: add bus driver for accessing Allwinner A64 DE2
The "Display Engine 2.0" (usually called DE2) on the Allwinner A64 SoC
is different from the ones on other Allwinner SoCs. It requires a SRAM
region to be claimed, otherwise all DE2 subblocks won't be accessible.
Add a bus driver for the Allwinner A64 DE2 part which claims the SRAM
region when probing.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'drivers/bus/Kconfig')
| -rw-r--r-- | drivers/bus/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig index d1c0b60e9326..1851112ccc29 100644 --- a/drivers/bus/Kconfig +++ b/drivers/bus/Kconfig @@ -103,6 +103,16 @@ config SIMPLE_PM_BUS Controller (BSC, sometimes called "LBSC within Bus Bridge", or "External Bus Interface") as found on several Renesas ARM SoCs. +config SUN50I_DE2_BUS + bool "Allwinner A64 DE2 Bus Driver" + default ARM64 + depends on ARCH_SUNXI + select SUNXI_SRAM + help + Say y here to enable support for Allwinner A64 DE2 bus driver. It's + mostly transparent, but a SRAM region needs to be claimed in the SRAM + controller to make the all blocks in the DE2 part accessible. + config SUNXI_RSB tristate "Allwinner sunXi Reduced Serial Bus Driver" default MACH_SUN8I || MACH_SUN9I || ARM64 |
