sysreset: Add support for Microblaze soft reset jump
Microblaze is storing reset vector at address 0x0.
It means soft reset can be done by just jumping to this address.
This code was in platform code but sysreset interface is providing
enough capabilities to have more options how to reset the system. It can
go from gpio reset through watchdog reset till soft reset.
The driver has not compatible string because this is cpu specific and DM
core is not able to detect compatible string in DT root that's why this
driver will be instantiated from platform code by calling
device_bind_driver(gd->dm_root, "mb_soft_reset", "reset_soft",
NULL);
It should be bind as the last reset method to ensure that hw reset is
called before this.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index cec612e..f2524c1 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -23,6 +23,12 @@
example on Microblaze where reset logic can be controlled via GPIO
pin which triggers cpu reset.
+config SYSRESET_MICROBLAZE
+ bool "Enable support for Microblaze soft reset"
+ depends on MICROBLAZE
+ help
+ This is soft reset on Microblaze which does jump to 0x0 address.
+
config SYSRESET_PSCI
bool "Enable support for PSCI System Reset"
depends on ARM_PSCI_FW