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-rw-r--r--plat/nxp/soc-lx2160a/aarch64/lx2160a_helpers.S77
1 files changed, 77 insertions, 0 deletions
diff --git a/plat/nxp/soc-lx2160a/aarch64/lx2160a_helpers.S b/plat/nxp/soc-lx2160a/aarch64/lx2160a_helpers.S
new file mode 100644
index 0000000..c364dec
--- /dev/null
+++ b/plat/nxp/soc-lx2160a/aarch64/lx2160a_helpers.S
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2018-2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+
+#include <platform_def.h>
+
+.globl plat_secondary_cold_boot_setup
+.globl plat_is_my_cpu_primary
+.globl plat_reset_handler
+.globl platform_mem_init
+
+
+func platform_mem1_init
+ ret
+endfunc platform_mem1_init
+
+
+func platform_mem_init
+ ret
+endfunc platform_mem_init
+
+
+func apply_platform_errata
+
+ ret
+endfunc apply_platform_errata
+
+
+func plat_reset_handler
+ mov x29, x30
+ bl apply_platform_errata
+
+#if defined(IMAGE_BL31)
+ ldr x0, =POLICY_SMMU_PAGESZ_64K
+ cbz x0, 1f
+ /* Set the SMMU page size in the sACR register */
+ bl _set_smmu_pagesz_64
+#endif
+1:
+ mov x30, x29
+
+ ret
+endfunc plat_reset_handler
+
+
+/* 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
+ /* lx2160a does not do cold boot for secondary CPU */
+cb_panic:
+ b cb_panic
+endfunc plat_secondary_cold_boot_setup
+
+
+/* unsigned int plat_is_my_cpu_primary (void);
+ *
+ * Find out whether the current cpu is the primary
+ * cpu.
+ */
+func plat_is_my_cpu_primary
+ mrs x0, mpidr_el1
+ and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+ cmp x0, 0x0
+ cset w0, eq
+ ret
+endfunc plat_is_my_cpu_primary