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-rw-r--r--plat/imx/imx8qm/imx8qm_bl31_setup.c415
-rw-r--r--plat/imx/imx8qm/imx8qm_psci.c326
-rw-r--r--plat/imx/imx8qm/include/platform_def.h79
-rw-r--r--plat/imx/imx8qm/include/sec_rsrc.h32
-rw-r--r--plat/imx/imx8qm/platform.mk50
5 files changed, 902 insertions, 0 deletions
diff --git a/plat/imx/imx8qm/imx8qm_bl31_setup.c b/plat/imx/imx8qm/imx8qm_bl31_setup.c
new file mode 100644
index 0000000..68eb534
--- /dev/null
+++ b/plat/imx/imx8qm/imx8qm_bl31_setup.c
@@ -0,0 +1,415 @@
+/*
+ * Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <platform_def.h>
+
+#include <arch_helpers.h>
+#include <context.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <drivers/arm/cci.h>
+#include <drivers/console.h>
+#include <lib/el3_runtime/context_mgmt.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+#include <plat/common/platform.h>
+
+#include <imx8qm_pads.h>
+#include <imx8_iomux.h>
+#include <imx8_lpuart.h>
+#include <plat_imx8.h>
+#include <sci/sci.h>
+#include <sec_rsrc.h>
+
+static const unsigned long BL31_COHERENT_RAM_START = BL_COHERENT_RAM_BASE;
+static const unsigned long BL31_COHERENT_RAM_END = BL_COHERENT_RAM_END;
+static const unsigned long BL31_RO_START = BL_CODE_BASE;
+static const unsigned long BL31_RO_END = BL_CODE_END;
+static const unsigned long BL31_RW_END = BL_END;
+
+IMPORT_SYM(unsigned long, __RW_START__, BL31_RW_START);
+
+static entry_point_info_t bl32_image_ep_info;
+static entry_point_info_t bl33_image_ep_info;
+
+#define UART_PAD_CTRL (PADRING_IFMUX_EN_MASK | PADRING_GP_EN_MASK | \
+ (SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
+ (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
+ (SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \
+ (SC_PAD_28FDSOI_PS_PD << PADRING_PULL_SHIFT))
+
+#if defined(IMX_USE_UART0)
+#define IMX_RES_UART SC_R_UART_0
+#define IMX_PAD_UART_RX SC_P_UART0_RX
+#define IMX_PAD_UART_TX SC_P_UART0_TX
+#define IMX_PAD_UART_RTS_B SC_P_UART0_RTS_B
+#define IMX_PAD_UART_CTS_B SC_P_UART0_CTS_B
+#elif defined(IMX_USE_UART1)
+#define IMX_RES_UART SC_R_UART_1
+#define IMX_PAD_UART_RX SC_P_UART1_RX
+#define IMX_PAD_UART_TX SC_P_UART1_TX
+#define IMX_PAD_UART_RTS_B SC_P_UART1_RTS_B
+#define IMX_PAD_UART_CTS_B SC_P_UART1_CTS_B
+#else
+#error "Provide proper UART number in IMX_DEBUG_UART"
+#endif
+
+const static int imx8qm_cci_map[] = {
+ CLUSTER0_CCI_SLVAE_IFACE,
+ CLUSTER1_CCI_SLVAE_IFACE
+};
+
+static const mmap_region_t imx_mmap[] = {
+ MAP_REGION_FLAT(IMX_REG_BASE, IMX_REG_SIZE, MT_DEVICE | MT_RW),
+ {0}
+};
+
+static uint32_t get_spsr_for_bl33_entry(void)
+{
+ unsigned long el_status;
+ unsigned long mode;
+ uint32_t spsr;
+
+ /* figure out what mode we enter the non-secure world */
+ el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+ el_status &= ID_AA64PFR0_ELX_MASK;
+
+ mode = (el_status) ? MODE_EL2 : MODE_EL1;
+ spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+
+ return spsr;
+}
+
+#if DEBUG_CONSOLE_A53
+static void lpuart32_serial_setbrg(unsigned int base, int baudrate)
+{
+ unsigned int sbr, osr, baud_diff, tmp_osr, tmp_sbr;
+ unsigned int diff1, diff2, tmp, rate;
+
+ if (baudrate == 0)
+ panic();
+
+ sc_pm_get_clock_rate(ipc_handle, IMX_RES_UART, 2, &rate);
+
+ baud_diff = baudrate;
+ osr = 0;
+ sbr = 0;
+ for (tmp_osr = 4; tmp_osr <= 32; tmp_osr++) {
+ tmp_sbr = (rate / (baudrate * tmp_osr));
+ if (tmp_sbr == 0)
+ tmp_sbr = 1;
+
+ /* calculate difference in actual baud w/ current values */
+ diff1 = rate / (tmp_osr * tmp_sbr) - baudrate;
+ diff2 = rate / (tmp_osr * (tmp_sbr + 1));
+
+ /* select best values between sbr and sbr+1 */
+ if (diff1 > (baudrate - diff2)) {
+ diff1 = baudrate - diff2;
+ tmp_sbr++;
+ }
+
+ if (diff1 <= baud_diff) {
+ baud_diff = diff1;
+ osr = tmp_osr;
+ sbr = tmp_sbr;
+ }
+ }
+
+ tmp = mmio_read_32(IMX_BOOT_UART_BASE + BAUD);
+
+ if ((osr > 3) && (osr < 8))
+ tmp |= LPUART_BAUD_BOTHEDGE_MASK;
+
+ tmp &= ~LPUART_BAUD_OSR_MASK;
+ tmp |= LPUART_BAUD_OSR(osr - 1);
+ tmp &= ~LPUART_BAUD_SBR_MASK;
+ tmp |= LPUART_BAUD_SBR(sbr);
+
+ /* explicitly disable 10 bit mode & set 1 stop bit */
+ tmp &= ~(LPUART_BAUD_M10_MASK | LPUART_BAUD_SBNS_MASK);
+
+ mmio_write_32(IMX_BOOT_UART_BASE + BAUD, tmp);
+}
+
+static int lpuart32_serial_init(unsigned int base)
+{
+ unsigned int tmp;
+
+ /* disable TX & RX before enabling clocks */
+ tmp = mmio_read_32(IMX_BOOT_UART_BASE + CTRL);
+ tmp &= ~(CTRL_TE | CTRL_RE);
+ mmio_write_32(IMX_BOOT_UART_BASE + CTRL, tmp);
+
+ mmio_write_32(IMX_BOOT_UART_BASE + MODIR, 0);
+ mmio_write_32(IMX_BOOT_UART_BASE + FIFO, ~(FIFO_TXFE | FIFO_RXFE));
+
+ mmio_write_32(IMX_BOOT_UART_BASE + MATCH, 0);
+
+ /* provide data bits, parity, stop bit, etc */
+ lpuart32_serial_setbrg(base, IMX_BOOT_UART_BAUDRATE);
+
+ /* eight data bits no parity bit */
+ tmp = mmio_read_32(IMX_BOOT_UART_BASE + CTRL);
+ tmp &= ~(LPUART_CTRL_PE_MASK | LPUART_CTRL_PT_MASK | LPUART_CTRL_M_MASK);
+ mmio_write_32(IMX_BOOT_UART_BASE + CTRL, tmp);
+
+ mmio_write_32(IMX_BOOT_UART_BASE + CTRL, CTRL_RE | CTRL_TE);
+
+ mmio_write_32(IMX_BOOT_UART_BASE + DATA, 0x55);
+ mmio_write_32(IMX_BOOT_UART_BASE + DATA, 0x55);
+ mmio_write_32(IMX_BOOT_UART_BASE + DATA, 0x0A);
+
+ return 0;
+}
+#endif
+
+void mx8_partition_resources(void)
+{
+ sc_rm_pt_t secure_part, os_part;
+ sc_rm_mr_t mr, mr_record = 64;
+ sc_faddr_t start, end;
+ bool owned, owned2;
+ sc_err_t err;
+ int i;
+
+ err = sc_rm_get_partition(ipc_handle, &secure_part);
+
+ err = sc_rm_partition_alloc(ipc_handle, &os_part, false, false,
+ false, false, false);
+
+ err = sc_rm_set_parent(ipc_handle, os_part, secure_part);
+
+ /* set secure resources to NOT-movable */
+ for (i = 0; i < ARRAY_SIZE(secure_rsrcs); i++) {
+ err = sc_rm_set_resource_movable(ipc_handle, secure_rsrcs[i],
+ secure_rsrcs[i], false);
+ if (err)
+ ERROR("sc_rm_set_resource_movable: rsrc %u, ret %u\n",
+ secure_rsrcs[i], err);
+ }
+
+ owned = sc_rm_is_resource_owned(ipc_handle, SC_R_M4_0_PID0);
+ if (owned) {
+ err = sc_rm_set_resource_movable(ipc_handle, SC_R_M4_0_PID0,
+ SC_R_M4_0_PID0, false);
+ if (err)
+ ERROR("sc_rm_set_resource_movable: rsrc %u, ret %u\n",
+ SC_R_M4_0_PID0, err);
+ }
+
+ owned2 = sc_rm_is_resource_owned(ipc_handle, SC_R_M4_1_PID0);
+ if (owned2) {
+ err = sc_rm_set_resource_movable(ipc_handle, SC_R_M4_1_PID0,
+ SC_R_M4_1_PID0, false);
+ if (err)
+ ERROR("sc_rm_set_resource_movable: rsrc %u, ret %u\n",
+ SC_R_M4_1_PID0, err);
+ }
+ /* move all movable resources and pins to non-secure partition */
+ err = sc_rm_move_all(ipc_handle, secure_part, os_part, true, true);
+ if (err)
+ ERROR("sc_rm_move_all: %u\n", err);
+
+ /* iterate through peripherals to give NS OS part access */
+ for (i = 0; i < ARRAY_SIZE(ns_access_allowed); i++) {
+ err = sc_rm_set_peripheral_permissions(ipc_handle, ns_access_allowed[i],
+ os_part, SC_RM_PERM_FULL);
+ if (err)
+ ERROR("sc_rm_set_peripheral_permissions: rsrc %u, \
+ ret %u\n", ns_access_allowed[i], err);
+ }
+
+ if (owned) {
+ err = sc_rm_set_resource_movable(ipc_handle, SC_R_M4_0_PID0,
+ SC_R_M4_0_PID0, true);
+ if (err)
+ ERROR("sc_rm_set_resource_movable: rsrc %u, ret %u\n",
+ SC_R_M4_0_PID0, err);
+ err = sc_rm_assign_resource(ipc_handle, os_part, SC_R_M4_0_PID0);
+ if (err)
+ ERROR("sc_rm_assign_resource: rsrc %u, ret %u\n",
+ SC_R_M4_0_PID0, err);
+ }
+ if (owned2) {
+ err = sc_rm_set_resource_movable(ipc_handle, SC_R_M4_1_PID0,
+ SC_R_M4_1_PID0, true);
+ if (err)
+ ERROR("sc_rm_set_resource_movable: rsrc %u, ret %u\n",
+ SC_R_M4_1_PID0, err);
+ err = sc_rm_assign_resource(ipc_handle, os_part, SC_R_M4_1_PID0);
+ if (err)
+ ERROR("sc_rm_assign_resource: rsrc %u, ret %u\n",
+ SC_R_M4_1_PID0, err);
+ }
+
+ /*
+ * sc_rm_set_peripheral_permissions
+ * sc_rm_set_memreg_permissions
+ * sc_rm_set_pin_movable
+ */
+
+ for (mr = 0; mr < 64; mr++) {
+ owned = sc_rm_is_memreg_owned(ipc_handle, mr);
+ if (owned) {
+ err = sc_rm_get_memreg_info(ipc_handle, mr, &start, &end);
+ if (err)
+ ERROR("Memreg get info failed, %u\n", mr);
+ NOTICE("Memreg %u 0x%" PRIx64 " -- 0x%" PRIx64 "\n", mr, start, end);
+ if (BL31_BASE >= start && (BL31_LIMIT - 1) <= end) {
+ mr_record = mr; /* Record the mr for ATF running */
+ } else {
+ err = sc_rm_assign_memreg(ipc_handle, os_part, mr);
+ if (err)
+ ERROR("Memreg assign failed, 0x%" PRIx64 " -- 0x%" PRIx64 ", \
+ err %d\n", start, end, err);
+ }
+ }
+ }
+
+ if (mr_record != 64) {
+ err = sc_rm_get_memreg_info(ipc_handle, mr_record, &start, &end);
+ if (err)
+ ERROR("Memreg get info failed, %u\n", mr_record);
+ if ((BL31_LIMIT - 1) < end) {
+ err = sc_rm_memreg_alloc(ipc_handle, &mr, BL31_LIMIT, end);
+ if (err)
+ ERROR("sc_rm_memreg_alloc failed, 0x%" PRIx64 " -- 0x%" PRIx64 "\n",
+ (sc_faddr_t)BL31_LIMIT, end);
+ err = sc_rm_assign_memreg(ipc_handle, os_part, mr);
+ if (err)
+ ERROR("Memreg assign failed, 0x%" PRIx64 " -- 0x%" PRIx64 "\n",
+ (sc_faddr_t)BL31_LIMIT, end);
+ }
+
+ if (start < (BL31_BASE - 1)) {
+ err = sc_rm_memreg_alloc(ipc_handle, &mr, start, BL31_BASE - 1);
+ if (err)
+ ERROR("sc_rm_memreg_alloc failed, 0x%" PRIx64 " -- 0x%" PRIx64 "\n",
+ start, (sc_faddr_t)BL31_BASE - 1);
+ err = sc_rm_assign_memreg(ipc_handle, os_part, mr);
+ if (err)
+ ERROR("Memreg assign failed, 0x%" PRIx64 " -- 0x%" PRIx64 "\n",
+ start, (sc_faddr_t)BL31_BASE - 1);
+ }
+ }
+
+ if (err)
+ NOTICE("Partitioning Failed\n");
+ else
+ NOTICE("Non-secure Partitioning Succeeded\n");
+
+}
+
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+ u_register_t arg2, u_register_t arg3)
+{
+#if DEBUG_CONSOLE
+ static console_t console;
+#endif
+ if (sc_ipc_open(&ipc_handle, SC_IPC_BASE) != SC_ERR_NONE)
+ panic();
+
+#if DEBUG_CONSOLE_A53
+ sc_pm_set_resource_power_mode(ipc_handle, IMX_RES_UART,
+ SC_PM_PW_MODE_ON);
+ sc_pm_clock_rate_t rate = 80000000;
+ sc_pm_set_clock_rate(ipc_handle, IMX_RES_UART, 2, &rate);
+ sc_pm_clock_enable(ipc_handle, IMX_RES_UART, 2, true, false);
+
+ /* configure UART pads */
+ sc_pad_set(ipc_handle, IMX_PAD_UART_RX, UART_PAD_CTRL);
+ sc_pad_set(ipc_handle, IMX_PAD_UART_TX, UART_PAD_CTRL);
+ sc_pad_set(ipc_handle, IMX_PAD_UART_RTS_B, UART_PAD_CTRL);
+ sc_pad_set(ipc_handle, IMX_PAD_UART_CTS_B, UART_PAD_CTRL);
+ lpuart32_serial_init(IMX_BOOT_UART_BASE);
+#endif
+
+#if DEBUG_CONSOLE
+ console_lpuart_register(IMX_BOOT_UART_BASE, IMX_BOOT_UART_CLK_IN_HZ,
+ IMX_CONSOLE_BAUDRATE, &console);
+#endif
+
+ /* 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
+ * uses global structs defined in sec_rsrc.h
+ */
+ mx8_partition_resources();
+
+ bl33_image_ep_info.pc = PLAT_NS_IMAGE_OFFSET;
+ bl33_image_ep_info.spsr = get_spsr_for_bl33_entry();
+ SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
+
+ /* init the first cluster's cci slave interface */
+ cci_init(PLAT_CCI_BASE, imx8qm_cci_map, PLATFORM_CLUSTER_COUNT);
+ cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr_el1()));
+}
+
+void bl31_plat_arch_setup(void)
+{
+ unsigned long ro_start = BL31_RO_START;
+ unsigned long ro_size = BL31_RO_END - BL31_RO_START;
+ unsigned long rw_start = BL31_RW_START;
+ unsigned long rw_size = BL31_RW_END - BL31_RW_START;
+#if USE_COHERENT_MEM
+ unsigned long coh_start = BL31_COHERENT_RAM_START;
+ unsigned long coh_size = BL31_COHERENT_RAM_END - BL31_COHERENT_RAM_START;
+#endif
+
+ mmap_add_region(ro_start, ro_start, ro_size,
+ MT_RO | MT_MEMORY | MT_SECURE);
+ mmap_add_region(rw_start, rw_start, rw_size,
+ MT_RW | MT_MEMORY | MT_SECURE);
+ mmap_add(imx_mmap);
+
+#if USE_COHERENT_MEM
+ mmap_add_region(coh_start, coh_start, coh_size,
+ MT_DEVICE | MT_RW | MT_SECURE);
+#endif
+
+ /* setup xlat table */
+ init_xlat_tables();
+ /* enable the MMU */
+ enable_mmu_el3(0);
+}
+
+void bl31_platform_setup(void)
+{
+ plat_gic_driver_init();
+ plat_gic_init();
+}
+
+entry_point_info_t *bl31_plat_get_next_image_ep_info(unsigned int type)
+{
+ if (type == NON_SECURE)
+ return &bl33_image_ep_info;
+ if (type == SECURE)
+ return &bl32_image_ep_info;
+
+ return NULL;
+}
+
+unsigned int plat_get_syscnt_freq2(void)
+{
+ return COUNTER_FREQUENCY;
+}
+
+void bl31_plat_runtime_setup(void)
+{
+ return;
+}
diff --git a/plat/imx/imx8qm/imx8qm_psci.c b/plat/imx/imx8qm/imx8qm_psci.c
new file mode 100644
index 0000000..bdba37c
--- /dev/null
+++ b/plat/imx/imx8qm/imx8qm_psci.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/arm/cci.h>
+#include <drivers/arm/gicv3.h>
+#include <lib/mmio.h>
+#include <lib/psci/psci.h>
+
+#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) \
+ ((state)->pwr_domain_state[MPIDR_AFFLVL1])
+#define SYSTEM_PWR_STATE(state) \
+ ((state)->pwr_domain_state[PLAT_MAX_PWR_LVL])
+
+const static int ap_core_index[PLATFORM_CORE_COUNT] = {
+ SC_R_A53_0, SC_R_A53_1, SC_R_A53_2,
+ 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 = 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;
+}
+
+void imx_pwr_domain_on_finish(const psci_power_state_t *target_state)
+{
+ uint64_t mpidr = read_mpidr_el1();
+
+ if (CLUSTER_PWR_STATE(target_state) == PLAT_MAX_OFF_STATE)
+ cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(mpidr));
+
+ plat_gic_pcpu_init();
+ plat_gic_cpuif_enable();
+}
+
+void imx_pwr_domain_off(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);
+
+ plat_gic_cpuif_disable();
+ 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_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);
+}
+
+void imx_domain_suspend(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);
+
+ 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();
+ }
+
+ 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);
+ }
+
+ 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);
+
+ /* check the system level status */
+ if (is_local_state_retn(SYSTEM_PWR_STATE(target_state))) {
+ MU_Resume(SC_IPC_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);
+
+ /* 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)
+{
+ return PSCI_E_SUCCESS;
+}
+
+static const plat_psci_ops_t imx_plat_psci_ops = {
+ .pwr_domain_on = imx_pwr_domain_on,
+ .pwr_domain_on_finish = imx_pwr_domain_on_finish,
+ .pwr_domain_off = imx_pwr_domain_off,
+ .pwr_domain_suspend = imx_domain_suspend,
+ .pwr_domain_suspend_finish = imx_domain_suspend_finish,
+ .get_sys_suspend_power_state = imx_get_sys_suspend_power_state,
+ .validate_power_state = imx_validate_power_state,
+ .validate_ns_entrypoint = imx_validate_ns_entrypoint,
+ .system_off = imx_system_off,
+ .system_reset = imx_system_reset,
+};
+
+int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+ const plat_psci_ops_t **psci_ops)
+{
+ imx_mailbox_init(sec_entrypoint);
+ *psci_ops = &imx_plat_psci_ops;
+
+ /* 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
new file mode 100644
index 0000000..671c77f
--- /dev/null
+++ b/plat/imx/imx8qm/include/platform_def.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_DEF_H
+#define PLATFORM_DEF_H
+
+#include <lib/utils_def.h>
+
+#define PLATFORM_LINKER_FORMAT "elf64-littleaarch64"
+#define PLATFORM_LINKER_ARCH aarch64
+
+#define PLATFORM_STACK_SIZE 0X400
+#define CACHE_WRITEBACK_GRANULE 64
+
+#define PLAT_PRIMARY_CPU U(0x0)
+#define PLATFORM_MAX_CPU_PER_CLUSTER U(4)
+#define PLATFORM_CLUSTER_COUNT U(2)
+#define PLATFORM_CLUSTER0_CORE_COUNT U(4)
+#define PLATFORM_CLUSTER1_CORE_COUNT U(2)
+#define PLATFORM_CORE_COUNT (PLATFORM_CLUSTER0_CORE_COUNT + \
+ PLATFORM_CLUSTER1_CORE_COUNT)
+
+#define IMX_PWR_LVL0 MPIDR_AFFLVL0
+#define IMX_PWR_LVL1 MPIDR_AFFLVL1
+#define IMX_PWR_LVL2 MPIDR_AFFLVL2
+
+#define PWR_DOMAIN_AT_MAX_LVL U(1)
+#define PLAT_MAX_PWR_LVL U(2)
+#define PLAT_MAX_OFF_STATE U(2)
+#define PLAT_MAX_RET_STATE U(1)
+
+#define BL31_BASE 0x80000000
+#define BL31_LIMIT 0x80020000
+
+#define PLAT_GICD_BASE 0x51a00000
+#define PLAT_GICR_BASE 0x51b00000
+#define PLAT_CCI_BASE 0x52090000
+#define CLUSTER0_CCI_SLVAE_IFACE 3
+#define CLUSTER1_CCI_SLVAE_IFACE 4
+
+/* UART */
+#if defined(IMX_USE_UART0)
+#define IMX_BOOT_UART_BASE 0x5a060000
+#elif defined(IMX_USE_UART1)
+#define IMX_BOOT_UART_BASE 0x5a070000
+#else
+#error "Provide proper UART number in IMX_DEBUG_UART"
+#endif
+
+#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 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 */
+
+/* non-secure uboot base */
+#define PLAT_NS_IMAGE_OFFSET 0x80020000
+
+#define PLAT_VIRT_ADDR_SPACE_SIZE (1ull << 32)
+#define PLAT_PHY_ADDR_SPACE_SIZE (1ull << 32)
+
+#define MAX_XLAT_TABLES 8
+#define MAX_MMAP_REGIONS 12
+
+#define DEBUG_CONSOLE_A53 DEBUG_CONSOLE
+
+#endif /* PLATFORM_DEF_H */
diff --git a/plat/imx/imx8qm/include/sec_rsrc.h b/plat/imx/imx8qm/include/sec_rsrc.h
new file mode 100644
index 0000000..d16d051
--- /dev/null
+++ b/plat/imx/imx8qm/include/sec_rsrc.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* resources that are going to stay in secure partition */
+sc_rsrc_t secure_rsrcs[] = {
+ SC_R_MU_0A,
+ SC_R_A53,
+ SC_R_A53_0,
+ SC_R_A53_1,
+ SC_R_A53_2,
+ SC_R_A53_3,
+ SC_R_A72,
+ SC_R_A72_0,
+ SC_R_A72_1,
+ SC_R_GIC,
+ SC_R_GIC_SMMU,
+ SC_R_CCI,
+ SC_R_SYSTEM,
+ 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_GPT_0
+};
diff --git a/plat/imx/imx8qm/platform.mk b/plat/imx/imx8qm/platform.mk
new file mode 100644
index 0000000..c57edbe
--- /dev/null
+++ b/plat/imx/imx8qm/platform.mk
@@ -0,0 +1,50 @@
+#
+# Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Translation tables library
+include lib/xlat_tables_v2/xlat_tables.mk
+
+PLAT_INCLUDES := -Iplat/imx/imx8qm/include \
+ -Iplat/imx/common/include \
+
+# Include GICv3 driver files
+include drivers/arm/gic/v3/gicv3.mk
+
+IMX_GIC_SOURCES := ${GICV3_SOURCES} \
+ plat/common/plat_gicv3.c \
+ plat/common/plat_psci_common.c \
+ plat/imx/common/plat_imx8_gic.c
+
+BL31_SOURCES += plat/imx/common/lpuart_console.S \
+ plat/imx/common/imx8_helpers.S \
+ plat/imx/imx8qm/imx8qm_bl31_setup.c \
+ plat/imx/imx8qm/imx8qm_psci.c \
+ plat/imx/common/imx8_topology.c \
+ plat/imx/common/imx8_psci.c \
+ plat/imx/common/imx_sip_svc.c \
+ plat/imx/common/imx_sip_handler.c \
+ lib/cpus/aarch64/cortex_a53.S \
+ lib/cpus/aarch64/cortex_a72.S \
+ drivers/arm/cci/cci.c \
+ ${XLAT_TABLES_LIB_SRCS} \
+ ${IMX_GIC_SOURCES} \
+
+include plat/imx/common/sci/sci_api.mk
+
+USE_COHERENT_MEM := 1
+RESET_TO_BL31 := 1
+A53_DISABLE_NON_TEMPORAL_HINT := 0
+ERRATA_A72_859971 := 1
+
+ERRATA_A53_835769 := 1
+ERRATA_A53_843419 := 1
+ERRATA_A53_855873 := 1
+
+IMX_DEBUG_UART ?= 0
+$(eval $(call add_define,IMX_USE_UART${IMX_DEBUG_UART}))
+
+DEBUG_CONSOLE ?= 0
+$(eval $(call add_define,DEBUG_CONSOLE))