reset: add reset-simple to unify socfpga, stm32, sunxi, and zx2967
Copy reusable parts from the sunxi driver, to add a driver for simple
reset controllers with reset lines that can be controlled by toggling
bits in exclusive, contiguous register ranges using read-modify-write
cycles under a spinlock.
The following patches will replace compatible reset drivers with
reset-simple, extending it where necessary.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index 1c88af2..392e651 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -75,6 +75,16 @@
help
This enables the reset driver for ImgTec Pistachio SoCs.
+config RESET_SIMPLE
+ bool "Simple Reset Controller Driver" if COMPILE_TEST
+ default ARCH_SUNXI
+ help
+ This enables a simple reset controller driver for reset lines that
+ that can be asserted and deasserted by toggling bits in a contiguous,
+ exclusive register space.
+
+ Currently this driver supports Allwinner SoCs.
+
config RESET_SOCFPGA
bool "SoCFPGA Reset Driver" if COMPILE_TEST
default ARCH_SOCFPGA || ARCH_STRATIX10