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-rw-r--r--plat/intel/soc/common/aarch64/plat_helpers.S215
-rw-r--r--plat/intel/soc/common/aarch64/platform_common.c60
2 files changed, 275 insertions, 0 deletions
diff --git a/plat/intel/soc/common/aarch64/plat_helpers.S b/plat/intel/soc/common/aarch64/plat_helpers.S
new file mode 100644
index 0000000..cbd0121
--- /dev/null
+++ b/plat/intel/soc/common/aarch64/plat_helpers.S
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2019-2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <cpu_macros.S>
+#include <platform_def.h>
+#include <el3_common_macros.S>
+
+ .globl plat_secondary_cold_boot_setup
+ .globl platform_is_primary_cpu
+ .globl plat_is_my_cpu_primary
+ .globl plat_my_core_pos
+ .globl plat_crash_console_init
+ .globl plat_crash_console_putc
+ .globl plat_crash_console_flush
+ .globl platform_mem_init
+ .globl plat_secondary_cpus_bl31_entry
+
+ .globl plat_get_my_entrypoint
+
+ /* -----------------------------------------------------
+ * void plat_secondary_cold_boot_setup (void);
+ *
+ * This function performs any platform specific actions
+ * needed for a secondary cpu after a cold reset e.g
+ * mark the cpu's presence, mechanism to place it in a
+ * holding pen etc.
+ * -----------------------------------------------------
+ */
+func plat_secondary_cold_boot_setup
+ /* Wait until the it gets reset signal from rstmgr gets populated */
+poll_mailbox:
+#if PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX5
+ mov_imm x0, PLAT_SEC_ENTRY
+ cbz x0, poll_mailbox
+ br x0
+#else
+ wfi
+ mov_imm x0, PLAT_SEC_ENTRY
+ ldr x1, [x0]
+ mov_imm x2, PLAT_CPUID_RELEASE
+ ldr x3, [x2]
+ mrs x4, mpidr_el1
+ and x4, x4, #0xff
+ cmp x3, x4
+ b.ne poll_mailbox
+ br x1
+#endif
+endfunc plat_secondary_cold_boot_setup
+
+#if ((PLATFORM_MODEL == PLAT_SOCFPGA_STRATIX10) || \
+ (PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX) || \
+ (PLATFORM_MODEL == PLAT_SOCFPGA_N5X))
+
+func platform_is_primary_cpu
+ and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+ cmp x0, #PLAT_PRIMARY_CPU
+ cset x0, eq
+ ret
+endfunc platform_is_primary_cpu
+
+#else
+
+func platform_is_primary_cpu
+ and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+ cmp x0, #(PLAT_PRIMARY_CPU_A76)
+ b.eq primary_cpu
+ cmp x0, #(PLAT_PRIMARY_CPU_A55)
+ b.eq primary_cpu
+primary_cpu:
+ cset x0, eq
+ ret
+endfunc platform_is_primary_cpu
+
+#endif
+
+func plat_is_my_cpu_primary
+ mrs x0, mpidr_el1
+ b platform_is_primary_cpu
+endfunc plat_is_my_cpu_primary
+
+func plat_my_core_pos
+ mrs x0, mpidr_el1
+ and x1, x0, #MPIDR_CPU_MASK
+ and x0, x0, #MPIDR_CLUSTER_MASK
+#if PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX5
+ add x0, x1, x0, LSR #8
+#else
+ add x0, x1, x0, LSR #6
+#endif
+ ret
+endfunc plat_my_core_pos
+
+func warm_reset_req
+#if PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX5
+ bl plat_is_my_cpu_primary
+ cbnz x0, warm_reset
+warm_reset:
+ mov_imm x1, PLAT_SEC_ENTRY
+ str xzr, [x1]
+ mrs x1, rmr_el3
+ orr x1, x1, #0x02
+ msr rmr_el3, x1
+ isb
+ dsb sy
+#else
+ str xzr, [x4]
+ bl plat_is_my_cpu_primary
+ cbz x0, cpu_in_wfi
+ mov_imm x1, PLAT_SEC_ENTRY
+ str xzr, [x1]
+ mrs x1, rmr_el3
+ orr x1, x1, #0x02
+ msr rmr_el3, x1
+ isb
+ dsb sy
+cpu_in_wfi:
+ wfi
+ b cpu_in_wfi
+#endif
+endfunc warm_reset_req
+
+/* TODO: Zephyr warm reset test */
+#if PLATFORM_MODEL == PLAT_SOCFPGA_AGILEX5
+func plat_get_my_entrypoint
+ ldr x4, =L2_RESET_DONE_REG
+ ldr x5, [x4]
+ ldr x1, =PLAT_L2_RESET_REQ
+ cmp x1, x5
+ b.eq zephyr_reset_req
+ mov_imm x1, PLAT_SEC_ENTRY
+ ldr x0, [x1]
+ ret
+zephyr_reset_req:
+ ldr x0, =0x00
+ ret
+endfunc plat_get_my_entrypoint
+#else
+func plat_get_my_entrypoint
+ ldr x4, =L2_RESET_DONE_REG
+ ldr x5, [x4]
+ ldr x1, =L2_RESET_DONE_STATUS
+ cmp x1, x5
+ b.eq warm_reset_req
+ mov_imm x1, PLAT_SEC_ENTRY
+ ldr x0, [x1]
+ ret
+endfunc plat_get_my_entrypoint
+#endif
+
+ /* ---------------------------------------------
+ * int plat_crash_console_init(void)
+ * Function to initialize the crash console
+ * without a C Runtime to print crash report.
+ * Clobber list : x0, x1, x2
+ * ---------------------------------------------
+ */
+func plat_crash_console_init
+ mov_imm x0, CRASH_CONSOLE_BASE
+ mov_imm x1, PLAT_UART_CLOCK
+ mov_imm x2, PLAT_BAUDRATE
+ b console_16550_core_init
+endfunc plat_crash_console_init
+
+ /* ---------------------------------------------
+ * int plat_crash_console_putc(void)
+ * Function to print a character on the crash
+ * console without a C Runtime.
+ * Clobber list : x1, x2
+ * ---------------------------------------------
+ */
+func plat_crash_console_putc
+ mov_imm x1, CRASH_CONSOLE_BASE
+ b console_16550_core_putc
+endfunc plat_crash_console_putc
+
+func plat_crash_console_flush
+ mov_imm x0, CRASH_CONSOLE_BASE
+ b console_16550_core_flush
+endfunc plat_crash_console_flush
+
+
+ /* --------------------------------------------------------
+ * void platform_mem_init (void);
+ *
+ * Any memory init, relocation to be done before the
+ * platform boots. Called very early in the boot process.
+ * --------------------------------------------------------
+ */
+func platform_mem_init
+ mov x0, #0
+ ret
+endfunc platform_mem_init
+
+ /* --------------------------------------------------------
+ * macro plat_secondary_cpus_bl31_entry;
+ *
+ * el3_entrypoint_common init param configuration.
+ * Called very early in the secondary cores boot process.
+ * --------------------------------------------------------
+ */
+func plat_secondary_cpus_bl31_entry
+ el3_entrypoint_common \
+ _init_sctlr=0 \
+ _warm_boot_mailbox=!PROGRAMMABLE_RESET_ADDRESS \
+ _secondary_cold_boot=!COLD_BOOT_SINGLE_CPU \
+ _init_memory=1 \
+ _init_c_runtime=1 \
+ _exception_vectors=runtime_exceptions \
+ _pie_fixup_size=BL31_LIMIT - BL31_BASE
+endfunc plat_secondary_cpus_bl31_entry
diff --git a/plat/intel/soc/common/aarch64/platform_common.c b/plat/intel/soc/common/aarch64/platform_common.c
new file mode 100644
index 0000000..b79a63c
--- /dev/null
+++ b/plat/intel/soc/common/aarch64/platform_common.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <platform_def.h>
+#include <plat/common/platform.h>
+
+#include "socfpga_private.h"
+
+
+unsigned int plat_get_syscnt_freq2(void)
+{
+ return PLAT_SYS_COUNTER_FREQ_IN_TICKS;
+}
+
+unsigned long socfpga_get_ns_image_entrypoint(void)
+{
+ return PLAT_NS_IMAGE_OFFSET;
+}
+
+/******************************************************************************
+ * Gets SPSR for BL32 entry
+ *****************************************************************************/
+uint32_t socfpga_get_spsr_for_bl32_entry(void)
+{
+ /*
+ * The Secure Payload Dispatcher service is responsible for
+ * setting the SPSR prior to entry into the BL32 image.
+ */
+ return 0;
+}
+
+/******************************************************************************
+ * Gets SPSR for BL33 entry
+ *****************************************************************************/
+uint32_t socfpga_get_spsr_for_bl33_entry(void)
+{
+ unsigned long el_status;
+ unsigned int mode;
+ uint32_t spsr;
+
+ /* Figure out what mode we enter the non-secure world in */
+ el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+ el_status &= ID_AA64PFR0_ELX_MASK;
+
+ mode = (el_status) ? MODE_EL2 : MODE_EL1;
+
+ /*
+ * TODO: Consider the possibility of specifying the SPSR in
+ * the FIP ToC and allowing the platform to have a say as
+ * well.
+ */
+ spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+ return spsr;
+}
+