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| author | Thor Thayer <thor.thayer@linux.intel.com> | 2019-03-11 17:18:03 -0500 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2019-04-02 07:37:45 +0100 |
| commit | f36e789a1f8d0b75ee2b459dfac10efd7d299a6d (patch) | |
| tree | 27571ad233594339795ba36a70d8e8c589ede1f6 /drivers/mfd/Kconfig | |
| parent | 9e98c678c2d6ae3a17cb2de55d17f69dddaa231b (diff) | |
| download | linux-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/Kconfig | 10 |
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 |