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ARMv7 may not support Generic Timer Extension

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If ARMv7 based platform does not set ARM_CORTEX_Ax=yes, platform
shall define ARMV7_SUPPORTS_GENERIC_TIMER to enable generic timer
support.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
This commit is contained in:
Etienne Carriere 2017-11-08 14:41:47 +01:00
parent 64cc6e91e8
commit 86e2683597
2 changed files with 6 additions and 0 deletions
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2
lib/psci/psci_setup.c
View file

@ -266,8 +266,10 @@ int psci_setup(const psci_lib_args_t *lib_args)
******************************************************************************/
void psci_arch_setup(void)
{
#if ARM_ARCH_MAJOR > 7 || defined(ARMV7_SUPPORTS_GENERIC_TIMER)
/* Program the counter frequency */
write_cntfrq_el0(plat_get_syscnt_freq2());
#endif
/* Initialize the cpu_ops pointer. */
init_cpu_ops();

4
make_helpers/armv7-a-cpus.mk
View file

@ -39,8 +39,12 @@ endif
#
# ARMV7_SUPPORTS_VIRTUALIZATION
# Defined if ARMv7 core supports the Virtualization extension.
#
# ARMV7_SUPPORTS_GENERIC_TIMER
# Defined if ARMv7 core supports the Generic Timer extension.
ifeq ($(filter yes,$(ARM_CORTEX_A7) $(ARM_CORTEX_A12) $(ARM_CORTEX_A15) $(ARM_CORTEX_A17)),yes)
$(eval $(call add_define,ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING))
$(eval $(call add_define,ARMV7_SUPPORTS_VIRTUALIZATION))
$(eval $(call add_define,ARMV7_SUPPORTS_GENERIC_TIMER))
endif