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authorAnson Huang <Anson.Huang@nxp.com>2019-01-24 16:09:52 +0800
committerAnson Huang <Anson.Huang@nxp.com>2019-01-29 09:26:41 +0800
commit3a2b51993d0c9666a6e1bdc4fd45a987ef6f1266 (patch)
treeff6ffd2cc25b596716eb90d0c16efcc7e484943e /plat/imx
parente9b77791ab11b25391ef758d41a39584d14ff2e9 (diff)
downloadtrusted-firmware-a-3a2b51993d0c9666a6e1bdc4fd45a987ef6f1266.tar.gz
imx: power optimization for i.mx8qm
Current implementation of i.MX8QM power management related features does NOT optimize power number, all system resources like CCI, DDR, and A cluster etc. are kept in STBY mode (powered ON) when system suspend or CPU hotplug. To lower the power number, OFF mode should be adopted for those system resources whenever they can be OFF, A cluster will be OFF if the CPUs in the cluster are all off line, DDR/MU/DB can be OFF if system suspend, IRQ steer can be OFF if the wakeup source is belonged to system controller partition, so wakeup source runtime check is used to determine if IRQ steer can be OFF before system suspend. If resources are powered off for suspend, they should be restored properly after system resume. Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Diffstat (limited to 'plat/imx')
-rw-r--r--plat/imx/common/imx8_psci.c18
-rw-r--r--plat/imx/common/include/plat_imx8.h7
-rw-r--r--plat/imx/common/plat_imx8_gic.c16
-rw-r--r--plat/imx/common/sci/imx8_mu.c15
-rw-r--r--plat/imx/common/sci/imx8_mu.h1
-rw-r--r--plat/imx/imx8qm/imx8qm_bl31_setup.c10
-rw-r--r--plat/imx/imx8qm/imx8qm_psci.c290
-rw-r--r--plat/imx/imx8qm/include/platform_def.h10
-rw-r--r--plat/imx/imx8qm/include/sec_rsrc.h6
9 files changed, 290 insertions, 83 deletions
diff --git a/plat/imx/common/imx8_psci.c b/plat/imx/common/imx8_psci.c
index 588d8b4e25..91d33705d7 100644
--- a/plat/imx/common/imx8_psci.c
+++ b/plat/imx/common/imx8_psci.c
@@ -32,8 +32,22 @@ void __dead2 imx_system_reset(void)
int imx_validate_power_state(unsigned int power_state,
psci_power_state_t *req_state)
{
- /* TODO */
- return PSCI_E_INVALID_PARAMS;
+ int pwr_lvl = psci_get_pstate_pwrlvl(power_state);
+ int pwr_type = psci_get_pstate_type(power_state);
+ int state_id = psci_get_pstate_id(power_state);
+
+ if (pwr_lvl > PLAT_MAX_PWR_LVL)
+ return PSCI_E_INVALID_PARAMS;
+
+ if (pwr_type == PSTATE_TYPE_POWERDOWN) {
+ req_state->pwr_domain_state[MPIDR_AFFLVL0] = PLAT_MAX_OFF_STATE;
+ if (!state_id)
+ req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_RET_STATE;
+ else
+ req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_OFF_STATE;
+ }
+
+ return PSCI_E_SUCCESS;
}
void imx_get_sys_suspend_power_state(psci_power_state_t *req_state)
diff --git a/plat/imx/common/include/plat_imx8.h b/plat/imx/common/include/plat_imx8.h
index 952ad53024..be99b970f5 100644
--- a/plat/imx/common/include/plat_imx8.h
+++ b/plat/imx/common/include/plat_imx8.h
@@ -10,6 +10,11 @@
#include <drivers/arm/gicv3.h>
#include <lib/psci/psci.h>
+struct plat_gic_ctx {
+ gicv3_redist_ctx_t rdist_ctx[PLATFORM_CORE_COUNT];
+ gicv3_dist_ctx_t dist_ctx;
+};
+
unsigned int plat_calc_core_pos(uint64_t mpidr);
void imx_mailbox_init(uintptr_t base_addr);
void plat_gic_driver_init(void);
@@ -24,5 +29,7 @@ int imx_validate_power_state(unsigned int power_state,
psci_power_state_t *req_state);
void imx_get_sys_suspend_power_state(psci_power_state_t *req_state);
bool imx_is_wakeup_src_irqsteer(void);
+void plat_gic_save(unsigned int proc_num, struct plat_gic_ctx *ctx);
+void plat_gic_restore(unsigned int proc_num, struct plat_gic_ctx *ctx);
#endif /* PLAT_IMX8_H */
diff --git a/plat/imx/common/plat_imx8_gic.c b/plat/imx/common/plat_imx8_gic.c
index aec0b6c9b1..27c525b720 100644
--- a/plat/imx/common/plat_imx8_gic.c
+++ b/plat/imx/common/plat_imx8_gic.c
@@ -73,3 +73,19 @@ void plat_gic_pcpu_init(void)
{
gicv3_rdistif_init(plat_my_core_pos());
}
+
+void plat_gic_save(unsigned int proc_num, struct plat_gic_ctx *ctx)
+{
+ /* save the gic rdist/dist context */
+ for (int i = 0; i < PLATFORM_CORE_COUNT; i++)
+ gicv3_rdistif_save(i, &ctx->rdist_ctx[i]);
+ gicv3_distif_save(&ctx->dist_ctx);
+}
+
+void plat_gic_restore(unsigned int proc_num, struct plat_gic_ctx *ctx)
+{
+ /* restore the gic rdist/dist context */
+ gicv3_distif_init_restore(&ctx->dist_ctx);
+ for (int i = 0; i < PLATFORM_CORE_COUNT; i++)
+ gicv3_rdistif_init_restore(i, &ctx->rdist_ctx[i]);
+}
diff --git a/plat/imx/common/sci/imx8_mu.c b/plat/imx/common/sci/imx8_mu.c
index 26d9bdfef9..66e956d8a0 100644
--- a/plat/imx/common/sci/imx8_mu.c
+++ b/plat/imx/common/sci/imx8_mu.c
@@ -8,6 +8,21 @@
#include "imx8_mu.h"
+void MU_Resume(uint32_t base)
+{
+ uint32_t reg, i;
+
+ reg = mmio_read_32(base + MU_ACR_OFFSET1);
+ /* Clear GIEn, RIEn, TIEn, GIRn and ABFn. */
+ reg &= ~(MU_CR_GIEn_MASK1 | MU_CR_RIEn_MASK1 | MU_CR_TIEn_MASK1
+ | MU_CR_GIRn_MASK1 | MU_CR_Fn_MASK1);
+ mmio_write_32(base + MU_ACR_OFFSET1, reg);
+
+ /* Enable all RX interrupts */
+ for (i = 0; i < MU_RR_COUNT; i++)
+ MU_EnableRxFullInt(base, i);
+}
+
void MU_EnableRxFullInt(uint32_t base, uint32_t index)
{
uint32_t reg = mmio_read_32(base + MU_ACR_OFFSET1);
diff --git a/plat/imx/common/sci/imx8_mu.h b/plat/imx/common/sci/imx8_mu.h
index 8c78877283..edcac7bf3d 100644
--- a/plat/imx/common/sci/imx8_mu.h
+++ b/plat/imx/common/sci/imx8_mu.h
@@ -33,3 +33,4 @@ void MU_SendMessage(uint32_t base, uint32_t regIndex, uint32_t msg);
void MU_ReceiveMsg(uint32_t base, uint32_t regIndex, uint32_t *msg);
void MU_EnableGeneralInt(uint32_t base, uint32_t index);
void MU_EnableRxFullInt(uint32_t base, uint32_t index);
+void MU_Resume(uint32_t base);
diff --git a/plat/imx/imx8qm/imx8qm_bl31_setup.c b/plat/imx/imx8qm/imx8qm_bl31_setup.c
index a00695cc3e..c76de64616 100644
--- a/plat/imx/imx8qm/imx8qm_bl31_setup.c
+++ b/plat/imx/imx8qm/imx8qm_bl31_setup.c
@@ -49,11 +49,7 @@ const static int imx8qm_cci_map[] = {
};
static const mmap_region_t imx_mmap[] = {
- MAP_REGION_FLAT(IMX_BOOT_UART_BASE, IMX_BOOT_UART_SIZE, MT_DEVICE | MT_RW),
- MAP_REGION_FLAT(SC_IPC_BASE, SC_IPC_SIZE, MT_DEVICE | MT_RW),
- MAP_REGION_FLAT(PLAT_GICD_BASE, PLAT_GICD_SIZE, MT_DEVICE | MT_RW),
- MAP_REGION_FLAT(PLAT_GICR_BASE, PLAT_GICR_SIZE, MT_DEVICE | MT_RW),
- MAP_REGION_FLAT(PLAT_CCI_BASE, PLAT_CCI_SIZE, MT_DEVICE | MT_RW),
+ MAP_REGION_FLAT(IMX_REG_BASE, IMX_REG_SIZE, MT_DEVICE | MT_RW),
{0}
};
@@ -324,6 +320,10 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
/* turn on MU1 for non-secure OS/Hypervisor */
sc_pm_set_resource_power_mode(ipc_handle, SC_R_MU_1A, SC_PM_PW_MODE_ON);
+ /* Turn on GPT_0's power & clock for non-secure OS/Hypervisor */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_GPT_0, SC_PM_PW_MODE_ON);
+ sc_pm_clock_enable(ipc_handle, SC_R_GPT_0, SC_PM_CLK_PER, true, 0);
+ mmio_write_32(IMX_GPT_LPCG_BASE, mmio_read_32(IMX_GPT_LPCG_BASE) | (1 << 25));
/*
* create new partition for non-secure OS/Hypervisor
diff --git a/plat/imx/imx8qm/imx8qm_psci.c b/plat/imx/imx8qm/imx8qm_psci.c
index 833048dcfd..bdba37c6eb 100644
--- a/plat/imx/imx8qm/imx8qm_psci.c
+++ b/plat/imx/imx8qm/imx8qm_psci.c
@@ -17,6 +17,8 @@
#include <plat_imx8.h>
#include <sci/sci.h>
+#include "../../common/sci/imx8_mu.h"
+
#define CORE_PWR_STATE(state) \
((state)->pwr_domain_state[MPIDR_AFFLVL0])
#define CLUSTER_PWR_STATE(state) \
@@ -29,44 +31,70 @@ const static int ap_core_index[PLATFORM_CORE_COUNT] = {
SC_R_A53_3, SC_R_A72_0, SC_R_A72_1,
};
+/* save gic dist/redist context when GIC is poewr down */
+static struct plat_gic_ctx imx_gicv3_ctx;
+static unsigned int gpt_lpcg, gpt_reg[2];
+
+static void imx_enable_irqstr_wakeup(void)
+{
+ uint32_t irq_mask;
+ gicv3_dist_ctx_t *dist_ctx = &imx_gicv3_ctx.dist_ctx;
+
+ /* put IRQSTR into ON mode */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_IRQSTR_SCU2, SC_PM_PW_MODE_ON);
+
+ /* enable the irqsteer to handle wakeup irq */
+ mmio_write_32(IMX_WUP_IRQSTR_BASE, 0x1);
+ for (int i = 0; i < 15; i++) {
+ irq_mask = dist_ctx->gicd_isenabler[i];
+ mmio_write_32(IMX_WUP_IRQSTR_BASE + 0x3c - 0x4 * i, irq_mask);
+ }
+
+ /* set IRQSTR low power mode */
+ if (imx_is_wakeup_src_irqsteer())
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_IRQSTR_SCU2, SC_PM_PW_MODE_STBY);
+ else
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_IRQSTR_SCU2, SC_PM_PW_MODE_OFF);
+}
+
+static void imx_disable_irqstr_wakeup(void)
+{
+ /* put IRQSTR into ON from STBY mode */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_IRQSTR_SCU2, SC_PM_PW_MODE_ON);
+
+ /* disable the irqsteer */
+ mmio_write_32(IMX_WUP_IRQSTR_BASE, 0x0);
+ for (int i = 0; i < 16; i++)
+ mmio_write_32(IMX_WUP_IRQSTR_BASE + 0x4 + 0x4 * i, 0x0);
+
+ /* put IRQSTR into OFF mode */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_IRQSTR_SCU2, SC_PM_PW_MODE_OFF);
+}
+
int imx_pwr_domain_on(u_register_t mpidr)
{
int ret = PSCI_E_SUCCESS;
- unsigned int cluster_id, cpu_id;
-
- cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
- cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
-
- printf("imx_pwr_domain_on cluster_id %d, cpu_id %d\n", cluster_id, cpu_id);
-
- if (cluster_id == 0) {
- sc_pm_set_resource_power_mode(ipc_handle, SC_R_A53,
- SC_PM_PW_MODE_ON);
- if (sc_pm_set_resource_power_mode(ipc_handle, ap_core_index[cpu_id],
- SC_PM_PW_MODE_ON) != SC_ERR_NONE) {
- ERROR("cluster0 core %d power on failed!\n", cpu_id);
- ret = PSCI_E_INTERN_FAIL;
- }
-
- if (sc_pm_cpu_start(ipc_handle, ap_core_index[cpu_id],
- true, BL31_BASE) != SC_ERR_NONE) {
- ERROR("boot cluster0 core %d failed!\n", cpu_id);
- ret = PSCI_E_INTERN_FAIL;
- }
- } else {
- sc_pm_set_resource_power_mode(ipc_handle, SC_R_A72,
- SC_PM_PW_MODE_ON);
- if (sc_pm_set_resource_power_mode(ipc_handle, ap_core_index[cpu_id + 4],
- SC_PM_PW_MODE_ON) != SC_ERR_NONE) {
- ERROR(" cluster1 core %d power on failed!\n", cpu_id);
- ret = PSCI_E_INTERN_FAIL;
- }
-
- if (sc_pm_cpu_start(ipc_handle, ap_core_index[cpu_id + 4],
- true, BL31_BASE) != SC_ERR_NONE) {
- ERROR("boot cluster1 core %d failed!\n", cpu_id);
- ret = PSCI_E_INTERN_FAIL;
- }
+ unsigned int cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
+ unsigned int cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
+
+ sc_pm_set_resource_power_mode(ipc_handle, cluster_id == 0 ?
+ SC_R_A53 : SC_R_A72, SC_PM_PW_MODE_ON);
+
+ if (cluster_id == 1)
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_ON);
+
+ if (sc_pm_set_resource_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_ON) != SC_ERR_NONE) {
+ ERROR("core %d power on failed!\n", cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id);
+ ret = PSCI_E_INTERN_FAIL;
+ }
+
+ if (sc_pm_cpu_start(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ true, BL31_BASE) != SC_ERR_NONE) {
+ ERROR("boot core %d failed!\n", cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id);
+ ret = PSCI_E_INTERN_FAIL;
}
return ret;
@@ -91,11 +119,14 @@ void imx_pwr_domain_off(const psci_power_state_t *target_state)
plat_gic_cpuif_disable();
sc_pm_req_cpu_low_power_mode(ipc_handle,
- ap_core_index[cpu_id + cluster_id * 4],
- SC_PM_PW_MODE_OFF,
- SC_PM_WAKE_SRC_NONE);
- if (CLUSTER_PWR_STATE(target_state) == PLAT_MAX_OFF_STATE)
- cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_NONE);
+
+ if (is_local_state_off(CLUSTER_PWR_STATE(target_state))) {
+ cci_disable_snoop_dvm_reqs(cluster_id);
+ if (cluster_id == 1)
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_OFF);
+ }
printf("turn off cluster:%d core:%d\n", cluster_id, cpu_id);
}
@@ -105,24 +136,148 @@ void imx_domain_suspend(const psci_power_state_t *target_state)
unsigned int cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
unsigned int cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
- plat_gic_cpuif_disable();
+ if (is_local_state_off(CORE_PWR_STATE(target_state))) {
+ plat_gic_cpuif_disable();
+ sc_pm_set_cpu_resume(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ true, BL31_BASE);
+ sc_pm_req_cpu_low_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_GIC);
+ } else {
+ dsb();
+ write_scr_el3(read_scr_el3() | SCR_FIQ_BIT);
+ isb();
+ }
- cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+ if (is_local_state_off(CLUSTER_PWR_STATE(target_state))) {
+ cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+ if (cluster_id == 1)
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_OFF);
+ }
- sc_pm_set_cpu_resume_addr(ipc_handle,
- ap_core_index[cpu_id + cluster_id * 4], BL31_BASE);
- sc_pm_req_cpu_low_power_mode(ipc_handle,
- ap_core_index[cpu_id + cluster_id * 4],
- SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_GIC);
+ if (is_local_state_retn(SYSTEM_PWR_STATE(target_state))) {
+ plat_gic_cpuif_disable();
+
+ /* save gic context */
+ plat_gic_save(cpu_id, &imx_gicv3_ctx);
+ /* enable the irqsteer for wakeup */
+ imx_enable_irqstr_wakeup();
+
+ cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+
+ /* Put GIC in LP mode. */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_GIC, SC_PM_PW_MODE_OFF);
+ /* Save GPT clock and registers, then turn off its power */
+ gpt_lpcg = mmio_read_32(IMX_GPT_LPCG_BASE);
+ gpt_reg[0] = mmio_read_32(IMX_GPT_BASE);
+ gpt_reg[1] = mmio_read_32(IMX_GPT_BASE + 0x4);
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_GPT_0, SC_PM_PW_MODE_OFF);
+
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_OFF);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_OFF);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_OFF);
+
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_OFF);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_OFF);
+
+ sc_pm_set_cpu_resume(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ true, BL31_BASE);
+ if (imx_is_wakeup_src_irqsteer())
+ sc_pm_req_cpu_low_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_IRQSTEER);
+ else
+ sc_pm_req_cpu_low_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_OFF, SC_PM_WAKE_SRC_SCU);
+ }
}
void imx_domain_suspend_finish(const psci_power_state_t *target_state)
{
u_register_t mpidr = read_mpidr_el1();
+ unsigned int cluster_id = MPIDR_AFFLVL1_VAL(mpidr);
+ unsigned int cpu_id = MPIDR_AFFLVL0_VAL(mpidr);
- cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+ /* check the system level status */
+ if (is_local_state_retn(SYSTEM_PWR_STATE(target_state))) {
+ MU_Resume(SC_IPC_BASE);
- plat_gic_cpuif_enable();
+ sc_pm_req_cpu_low_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_ON, SC_PM_WAKE_SRC_GIC);
+
+ /* Put GIC/IRQSTR back to high power mode. */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_GIC, SC_PM_PW_MODE_ON);
+
+ /* Turn GPT power and restore its clock and registers */
+ sc_pm_set_resource_power_mode(ipc_handle, SC_R_GPT_0, SC_PM_PW_MODE_ON);
+ sc_pm_clock_enable(ipc_handle, SC_R_GPT_0, SC_PM_CLK_PER, true, 0);
+ mmio_write_32(IMX_GPT_BASE, gpt_reg[0]);
+ mmio_write_32(IMX_GPT_BASE + 0x4, gpt_reg[1]);
+ mmio_write_32(IMX_GPT_LPCG_BASE, gpt_lpcg);
+
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_ON);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_ON);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_ON);
+
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_ON);
+
+ cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+
+ /* restore gic context */
+ plat_gic_restore(cpu_id, &imx_gicv3_ctx);
+ /* disable the irqsteer wakeup */
+ imx_disable_irqstr_wakeup();
+
+ plat_gic_cpuif_enable();
+ }
+
+ /* check the cluster level power status */
+ if (is_local_state_off(CLUSTER_PWR_STATE(target_state))) {
+ cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+ if (cluster_id == 1)
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_ON);
+ }
+
+ /* check the core level power status */
+ if (is_local_state_off(CORE_PWR_STATE(target_state))) {
+ sc_pm_set_cpu_resume(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ false, BL31_BASE);
+ sc_pm_req_cpu_low_power_mode(ipc_handle,
+ ap_core_index[cpu_id + PLATFORM_CLUSTER0_CORE_COUNT * cluster_id],
+ SC_PM_PW_MODE_ON, SC_PM_WAKE_SRC_GIC);
+ plat_gic_cpuif_enable();
+ } else {
+ write_scr_el3(read_scr_el3() & (~SCR_FIQ_BIT));
+ isb();
+ }
}
int imx_validate_ns_entrypoint(uintptr_t ns_entrypoint)
@@ -149,26 +304,23 @@ int plat_setup_psci_ops(uintptr_t sec_entrypoint,
imx_mailbox_init(sec_entrypoint);
*psci_ops = &imx_plat_psci_ops;
- /* Request low power mode for cluster/cci, only need to do once */
- sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_OFF);
- sc_pm_req_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_OFF);
- sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_OFF);
-
- /* Request RUN and LP modes for DDR, system interconnect etc. */
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53,
- SC_PM_SYS_IF_DDR, SC_PM_PW_MODE_ON, SC_PM_PW_MODE_STBY);
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72,
- SC_PM_SYS_IF_DDR, SC_PM_PW_MODE_ON, SC_PM_PW_MODE_STBY);
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53,
- SC_PM_SYS_IF_MU, SC_PM_PW_MODE_ON, SC_PM_PW_MODE_STBY);
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72,
- SC_PM_SYS_IF_MU, SC_PM_PW_MODE_ON, SC_PM_PW_MODE_STBY);
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53,
- SC_PM_SYS_IF_INTERCONNECT, SC_PM_PW_MODE_ON,
- SC_PM_PW_MODE_STBY);
- sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72,
- SC_PM_SYS_IF_INTERCONNECT, SC_PM_PW_MODE_ON,
- SC_PM_PW_MODE_STBY);
+ /* make sure system sources power ON in low power mode by default */
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A53, SC_PM_PW_MODE_ON);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_A72, SC_PM_PW_MODE_ON);
+ sc_pm_req_low_power_mode(ipc_handle, SC_R_CCI, SC_PM_PW_MODE_ON);
+
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_DDR,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_MU,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A53, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
+ sc_pm_req_sys_if_power_mode(ipc_handle, SC_R_A72, SC_PM_SYS_IF_INTERCONNECT,
+ SC_PM_PW_MODE_ON, SC_PM_PW_MODE_ON);
return 0;
}
diff --git a/plat/imx/imx8qm/include/platform_def.h b/plat/imx/imx8qm/include/platform_def.h
index 1d0bdf9a71..946be76592 100644
--- a/plat/imx/imx8qm/include/platform_def.h
+++ b/plat/imx/imx8qm/include/platform_def.h
@@ -36,22 +36,22 @@
#define BL31_LIMIT 0x80020000
#define PLAT_GICD_BASE 0x51a00000
-#define PLAT_GICD_SIZE 0x10000
#define PLAT_GICR_BASE 0x51b00000
-#define PLAT_GICR_SIZE 0xc0000
#define PLAT_CCI_BASE 0x52090000
-#define PLAT_CCI_SIZE 0x10000
#define CLUSTER0_CCI_SLVAE_IFACE 3
#define CLUSTER1_CCI_SLVAE_IFACE 4
#define IMX_BOOT_UART_BASE 0x5a060000
-#define IMX_BOOT_UART_SIZE 0x1000
#define IMX_BOOT_UART_BAUDRATE 115200
#define IMX_BOOT_UART_CLK_IN_HZ 24000000
#define PLAT_CRASH_UART_BASE IMX_BOOT_UART_BASE
#define PLAT__CRASH_UART_CLK_IN_HZ 24000000
#define IMX_CONSOLE_BAUDRATE 115200
#define SC_IPC_BASE 0x5d1b0000
-#define SC_IPC_SIZE 0x10000
+#define IMX_GPT_LPCG_BASE 0x5d540000
+#define IMX_GPT_BASE 0x5d140000
+#define IMX_WUP_IRQSTR_BASE 0x51090000
+#define IMX_REG_BASE 0x50000000
+#define IMX_REG_SIZE 0x10000000
#define COUNTER_FREQUENCY 8000000 /* 8MHz */
diff --git a/plat/imx/imx8qm/include/sec_rsrc.h b/plat/imx/imx8qm/include/sec_rsrc.h
index a623cd3f15..d16d05128e 100644
--- a/plat/imx/imx8qm/include/sec_rsrc.h
+++ b/plat/imx/imx8qm/include/sec_rsrc.h
@@ -19,12 +19,14 @@ sc_rsrc_t secure_rsrcs[] = {
SC_R_GIC_SMMU,
SC_R_CCI,
SC_R_SYSTEM,
- SC_R_IRQSTR_SCU2
+ SC_R_IRQSTR_SCU2,
+ SC_R_GPT_0
};
/* resources that have register access for non-secure domain */
sc_rsrc_t ns_access_allowed[] = {
SC_R_GIC,
SC_R_GIC_SMMU,
- SC_R_CCI
+ SC_R_CCI,
+ SC_R_GPT_0
};