feat(imx93): add the basic support
Add the basic boot support for i.MX93.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I48bac2fd8bf2145133edf101a315908266c3f50a
diff --git a/plat/imx/imx93/pwr_ctrl.c b/plat/imx/imx93/pwr_ctrl.c
new file mode 100644
index 0000000..624c605
--- /dev/null
+++ b/plat/imx/imx93/pwr_ctrl.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2023 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <stdbool.h>
+
+#include <platform_def.h>
+#include <pwr_ctrl.h>
+
+/*Do the necessary GPC, SRC, BLK_CTRL_S init */
+void pwr_sys_init(void)
+{
+ unsigned int cpu;
+
+ /*
+ * Assigned A55 cluster to 3, m33 to 2, A55 CORE0 & CORE1 to 0/1.
+ * domain0/1 only used for trigger LPM of themselves. A55 cluster & M33's
+ * domain assignment should be align with the TRDC DID.
+ */
+ gpc_assign_domains(0x3102);
+
+ /* CA55 core0/1 config */
+ for (cpu = CPU_A55C0; cpu <= CPU_A55_PLAT; cpu++) {
+ /* clear the cpu sleep hold */
+ gpc_clear_cpu_sleep_hold(cpu);
+ /* use gic wakeup source by default */
+ gpc_select_wakeup_gic(cpu);
+ /*
+ * Ignore A55 core0/1's LPM trigger for system sleep.
+ * normally, for A55 side, only the A55 cluster(plat)
+ * domain will be used to trigger the system wide low
+ * power mode transition.
+ */
+ if (cpu != CPU_A55_PLAT) {
+ gpc_force_cpu_suspend(cpu);
+ }
+ }
+
+ /* boot core(A55C0) */
+ src_mem_lpm_en(SRC_A55P0_MEM, MEM_OFF);
+ /* For A55 core, only need to be on in RUN mode */
+ src_mix_set_lpm(SRC_A55C0, 0x0, CM_MODE_WAIT);
+ /* whitelist: 0x1 for domain 0 only */
+ src_authen_config(SRC_A55C0, 0x1, 0x1);
+
+ /* A55 cluster */
+ gpc_select_wakeup_gic(CPU_A55_PLAT);
+ gpc_clear_cpu_sleep_hold(CPU_A55_PLAT);
+
+ /* SCU MEM must be OFF when A55 PLAT OFF */
+ src_mem_lpm_en(SRC_A55_SCU_MEM, MEM_OFF);
+ /* L3 memory in retention by default */
+ src_mem_lpm_en(SRC_A55_L3_MEM, MEM_RETN);
+
+ src_mix_set_lpm(SRC_A55P, 0x3, 0x1);
+ /* whitelist: 0x8 for domain 3 only */
+ src_authen_config(SRC_A55P, 0x8, 0x1);
+
+ /* enable the HW LP handshake between S401 & A55 cluster */
+ mmio_setbits_32(BLK_CTRL_S_BASE + HW_LP_HANDHSK, BIT(5));
+}
+