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authorThor Thayer <thor.thayer@linux.intel.com>2019-03-11 17:18:03 -0500
committerLee Jones <lee.jones@linaro.org>2019-04-02 07:37:45 +0100
commitf36e789a1f8d0b75ee2b459dfac10efd7d299a6d (patch)
tree27571ad233594339795ba36a70d8e8c589ede1f6 /drivers/mfd/Kconfig
parent9e98c678c2d6ae3a17cb2de55d17f69dddaa231b (diff)
downloadlinux-f36e789a1f8d0b75ee2b459dfac10efd7d299a6d.tar.bz2
mfd: altera-sysmgr: Add SOCFPGA System Manager
The SOCFPGA System Manager register block aggregates different peripheral functions into one area. On 32 bit ARM parts, handle in the same way as syscon. On 64 bit ARM parts, the System Manager can only be accessed by EL3 secure mode. Since a SMC call to EL3 is required, this new driver uses regmaps similar to syscon to handle the SMC call. Since regmaps abstract out the underlying register access, the changes to drivers accessing the System Manager are minimal. Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/Kconfig')
-rw-r--r--drivers/mfd/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 0ce2d8dfc5f1..f1a184f87c22 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -29,6 +29,16 @@ config MFD_ALTERA_A10SR
accessing the external gpio extender (LEDs & buttons) and
power supply alarms (hwmon).
+config MFD_ALTERA_SYSMGR
+ bool "Altera SOCFPGA System Manager"
+ depends on (ARCH_SOCFPGA || ARCH_STRATIX10) && OF
+ select MFD_SYSCON
+ help
+ Select this to get System Manager support for all Altera branded
+ SOCFPGAs. The SOCFPGA System Manager handles all SOCFPGAs by
+ using regmap_mmio accesses for ARM32 parts and SMC calls to
+ EL3 for ARM64 parts.
+
config MFD_ACT8945A
tristate "Active-semi ACT8945A"
select MFD_CORE