| Message ID | 20200930144507.15710-1-andre.przywara@arm.com |
|---|---|
| State | Accepted |
| Commit | cee2e022d208e2dd9c10d1d6845941e37cfe3e3a |
| Delegated to: | Tom Rini |
| Headers | show |
| Series | arm: Kconfig: Explain TFABOOT | expand |
On Wed, Sep 30, 2020 at 03:45:07PM +0100, Andre Przywara wrote: > The CONFIG_TFABOOT option is more about what U-Boot DOES NOT need to do > than to support some features. > > Explain a bit more in the Kconfig help text to avoid misunderstandings. > > Signed-off-by: Andre Przywara <andre.przywara@arm.com> Thanks! Reviewed-by: Tom Rini <trini@konsulko.com>
On Wed, Sep 30, 2020 at 03:45:07PM +0100, Andre Przywara wrote: > The CONFIG_TFABOOT option is more about what U-Boot DOES NOT need to do > than to support some features. > > Explain a bit more in the Kconfig help text to avoid misunderstandings. > > Signed-off-by: Andre Przywara <andre.przywara@arm.com> > Reviewed-by: Tom Rini <trini@konsulko.com> Applied to u-boot/master, thanks!
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8ba73680699..88ed3f2344d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1797,8 +1797,13 @@ config TFABOOT depends on ARCH_SUPPORT_TFABOOT default n help - Enabling this will make a U-Boot binary that is capable of being - booted via TF-A (Trusted Firmware for Cortex-A). + Some platforms support the setup of secure registers (for instance + for CPU errata handling) or provide secure services like PSCI. + Those services could also be provided by other firmware parts + like TF-A (Trusted Firmware for Cortex-A), in which case U-Boot + does not need to (and cannot) execute this code. + Enabling this option will make a U-Boot binary that is relying + on other firmware layers to provide secure functionality. config TI_SECURE_DEVICE bool "HS Device Type Support"
The CONFIG_TFABOOT option is more about what U-Boot DOES NOT need to do than to support some features. Explain a bit more in the Kconfig help text to avoid misunderstandings. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- arch/arm/Kconfig | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)