diff options
Diffstat (limited to 'plat/arm/common/aarch64/arm_common.c')
| -rw-r--r-- | plat/arm/common/aarch64/arm_common.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/plat/arm/common/aarch64/arm_common.c b/plat/arm/common/aarch64/arm_common.c index 48b4ac80..42641837 100644 --- a/plat/arm/common/aarch64/arm_common.c +++ b/plat/arm/common/aarch64/arm_common.c @@ -32,6 +32,7 @@ #include <cci.h> #include <mmio.h> #include <plat_arm.h> +#include <platform_def.h> #include <xlat_tables.h> @@ -142,3 +143,19 @@ void arm_cci_init(void) { cci_init(PLAT_ARM_CCI_BASE, cci_map, ARRAY_SIZE(cci_map)); } + +/******************************************************************************* + * Configures access to the system counter timer module. + ******************************************************************************/ +void arm_configure_sys_timer(void) +{ + unsigned int reg_val; + + reg_val = (1 << CNTACR_RPCT_SHIFT) | (1 << CNTACR_RVCT_SHIFT); + reg_val |= (1 << CNTACR_RFRQ_SHIFT) | (1 << CNTACR_RVOFF_SHIFT); + reg_val |= (1 << CNTACR_RWVT_SHIFT) | (1 << CNTACR_RWPT_SHIFT); + mmio_write_32(ARM_SYS_TIMCTL_BASE + CNTACR_BASE(PLAT_ARM_NSTIMER_FRAME_ID), reg_val); + + reg_val = (1 << CNTNSAR_NS_SHIFT(PLAT_ARM_NSTIMER_FRAME_ID)); + mmio_write_32(ARM_SYS_TIMCTL_BASE + CNTNSAR, reg_val); +} |