diff options
| -rw-r--r-- | fdts/a5ds.dts | 26 | ||||
| -rw-r--r-- | plat/arm/board/a5ds/a5ds_pm.c | 37 | ||||
| -rw-r--r-- | plat/arm/board/a5ds/include/platform_def.h | 10 |
3 files changed, 68 insertions, 5 deletions
diff --git a/fdts/a5ds.dts b/fdts/a5ds.dts index 8bc4adf8..91212e8a 100644 --- a/fdts/a5ds.dts +++ b/fdts/a5ds.dts @@ -12,14 +12,40 @@ interrupt-parent = <&gic>; #address-cells = <1>; #size-cells = <1>; + + psci { + compatible = "arm,psci-1.0", "arm,psci-0.2", "arm,psci"; + method = "smc"; + cpu_on = <0x84000003>; + }; + cpus { #address-cells = <1>; #size-cells = <0>; cpu@0 { device_type = "cpu"; compatible = "arm,cortex-a5"; + enable-method = "psci"; reg = <0>; }; + cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a5"; + enable-method = "psci"; + reg = <1>; + }; + cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a5"; + enable-method = "psci"; + reg = <2>; + }; + cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a5"; + enable-method = "psci"; + reg = <3>; + }; }; memory@80000000 { diff --git a/plat/arm/board/a5ds/a5ds_pm.c b/plat/arm/board/a5ds/a5ds_pm.c index 5fd443b1..98de77d1 100644 --- a/plat/arm/board/a5ds/a5ds_pm.c +++ b/plat/arm/board/a5ds/a5ds_pm.c @@ -6,6 +6,38 @@ #include <lib/psci/psci.h> #include <plat/arm/common/plat_arm.h> +#include <plat/common/platform.h> +#include <drivers/arm/gicv2.h> + +/******************************************************************************* + * Platform handler called when a power domain is about to be turned on. The + * mpidr determines the CPU to be turned on. + ******************************************************************************/ +static int a5ds_pwr_domain_on(u_register_t mpidr) +{ + unsigned int pos = plat_core_pos_by_mpidr(mpidr); + uint64_t *hold_base = (uint64_t *)A5DS_HOLD_BASE; + + hold_base[pos] = A5DS_HOLD_STATE_GO; + dsbish(); + sev(); + + return PSCI_E_SUCCESS; +} + +/******************************************************************************* + * Platform handler called when a power domain has just been powered on after + * being turned off earlier. The target_state encodes the low power state that + * each level has woken up from. + ******************************************************************************/ +void a5ds_pwr_domain_on_finish(const psci_power_state_t *target_state) +{ + /* TODO: This setup is needed only after a cold boot*/ + gicv2_pcpu_distif_init(); + + /* Enable the gic cpu interface */ + gicv2_cpuif_enable(); +} /******************************************************************************* * Export the platform handlers via a5ds_psci_pm_ops. The ARM Standard @@ -14,11 +46,16 @@ plat_psci_ops_t a5ds_psci_pm_ops = { /* dummy struct */ .validate_ns_entrypoint = NULL, + .pwr_domain_on = a5ds_pwr_domain_on, + .pwr_domain_on_finish = a5ds_pwr_domain_on_finish }; int __init plat_setup_psci_ops(uintptr_t sec_entrypoint, const plat_psci_ops_t **psci_ops) { + uintptr_t *mailbox = (void *)A5DS_TRUSTED_MAILBOX_BASE; + *mailbox = sec_entrypoint; + *psci_ops = &a5ds_psci_pm_ops; return 0; diff --git a/plat/arm/board/a5ds/include/platform_def.h b/plat/arm/board/a5ds/include/platform_def.h index 13c19343..e9e4b9ae 100644 --- a/plat/arm/board/a5ds/include/platform_def.h +++ b/plat/arm/board/a5ds/include/platform_def.h @@ -97,9 +97,9 @@ /* Default number of threads per CPU on A5DS */ #define A5DS_MAX_PE_PER_CPU 1 -#define A5DS_CORE_COUNT 1 +#define A5DS_CORE_COUNT 4 -#define A5DS_PRIMARY_CPU 0x0 +#define A5DS_PRIMARY_CPU 0x0 #define FLASH1_BASE UL(0x8000000) #define FLASH1_SIZE UL(0x2800000) @@ -229,11 +229,11 @@ #define BL32_LIMIT (ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE) /* Required platform porting definitions */ -#define PLATFORM_CORE_COUNT 1 -#define PLAT_NUM_PWR_DOMAINS (A5DS_CLUSTER_COUNT + \ +#define PLATFORM_CORE_COUNT A5DS_CORE_COUNT +#define PLAT_NUM_PWR_DOMAINS (A5DS_CLUSTER_COUNT + \ PLATFORM_CORE_COUNT) + 1 -#define PLAT_MAX_PWR_LVL 2 +#define PLAT_MAX_PWR_LVL 2 /* * Other platform porting definitions are provided by included headers |