diff options
| author | Nitin Garg <nitin.garg@nxp.com> | 2017-06-07 15:47:04 -0500 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2020-03-07 15:36:00 +0800 |
| commit | e28150e16c774ea63d6df76e8c2e20c7360dbf61 (patch) | |
| tree | 1802705883142ee922eacc29993a29093a611d28 /plat | |
| parent | ba12300cbf45b4d6a9acd484f4c1b80bef72b4ff (diff) | |
Enable CPU, FP, L2 retention counters to 64 cycles
Signed-off-by: Nitin Garg <nitin.garg@nxp.com>
Diffstat (limited to 'plat')
| -rw-r--r-- | plat/imx/common/imx8_helpers.S | 27 | ||||
| -rw-r--r-- | plat/imx/imx8qm/platform.mk | 5 | ||||
| -rw-r--r-- | plat/imx/imx8qx/platform.mk | 5 |
3 files changed, 37 insertions, 0 deletions
diff --git a/plat/imx/common/imx8_helpers.S b/plat/imx/common/imx8_helpers.S index b9603a46..15934757 100644 --- a/plat/imx/common/imx8_helpers.S +++ b/plat/imx/common/imx8_helpers.S @@ -92,6 +92,33 @@ endfunc plat_calc_core_pos * ---------------------------------------------- */ func plat_reset_handler +#if ENABLE_L2_DYNAMIC_RETENTION + /* --------------------------- + * Enable processor retention + * --------------------------- + */ + mrs x0, L2ECTLR_EL1 + mov x1, #RETENTION_ENTRY_TICKS_64 << L2ECTLR_RET_CTRL_SHIFT + bic x0, x0, #L2ECTLR_RET_CTRL_MASK + orr x0, x0, x1 + msr L2ECTLR_EL1, x0 + isb +#endif + +#if ENABLE_CPU_DYNAMIC_RETENTION + mrs x1, CORTEX_A72_ECTLR_EL1 + mov x2, #RETENTION_ENTRY_TICKS_64 << CPUECTLR_CPU_RET_CTRL_SHIFT + bic x1, x1, #CPUECTLR_CPU_RET_CTRL_MASK + orr x1, x1, x2 + jump_if_cpu_midr CORTEX_A72_MIDR, SKIP_FP + mov x2, #RETENTION_ENTRY_TICKS_64 << CPUECTLR_FPU_RET_CTRL_SHIFT + bic x1, x1, #CPUECTLR_FPU_RET_CTRL_MASK + orr x1, x1, x2 +SKIP_FP: + msr CORTEX_A72_ECTLR_EL1, x1 + isb +#endif + /* enable EL2 cpuectlr RW access */ mov x0, #0x73 msr actlr_el3, x0 diff --git a/plat/imx/imx8qm/platform.mk b/plat/imx/imx8qm/platform.mk index 3a772e51..5cadf518 100644 --- a/plat/imx/imx8qm/platform.mk +++ b/plat/imx/imx8qm/platform.mk @@ -41,3 +41,8 @@ ERRATA_A72_859971 := 1 ERRATA_A53_835769 := 1 ERRATA_A53_843419 := 1 ERRATA_A53_855873 := 1 + +ENABLE_CPU_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_CPU_DYNAMIC_RETENTION)) +ENABLE_L2_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_L2_DYNAMIC_RETENTION)) diff --git a/plat/imx/imx8qx/platform.mk b/plat/imx/imx8qx/platform.mk index d5629d12..c21b6f64 100644 --- a/plat/imx/imx8qx/platform.mk +++ b/plat/imx/imx8qx/platform.mk @@ -33,3 +33,8 @@ include plat/imx/common/sci/sci_api.mk USE_COHERENT_MEM := 1 RESET_TO_BL31 := 1 + +ENABLE_CPU_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_CPU_DYNAMIC_RETENTION)) +ENABLE_L2_DYNAMIC_RETENTION := 1 +$(eval $(call add_define,ENABLE_L2_DYNAMIC_RETENTION)) |