plat: imx7: refactor code for reuse
For the iMX7 SOCs, part of the code for platform
setup implementation can be reused and made
common for all these SoCs. This patch extracts
the common part for reuse.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Change-Id: I42fd4167e6903416df96a0159a046abf3896e878
diff --git a/plat/imx/imx7/common/imx7_helpers.S b/plat/imx/imx7/common/imx7_helpers.S
new file mode 100644
index 0000000..661fd29
--- /dev/null
+++ b/plat/imx/imx7/common/imx7_helpers.S
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) Linaro 2018-2019 Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <platform_def.h>
+#include <imx_hab.h>
+
+ .globl platform_mem_init
+ .globl plat_get_my_entrypoint
+ .globl plat_crash_console_init
+ .globl plat_crash_console_putc
+ .globl plat_crash_console_flush
+ .globl plat_panic_handler
+
+ /* ---------------------------------------------
+ * int plat_mem_init(void)
+ * Function to initialize memory.
+ * The HAB hands off the DDR controller already
+ * setup and ready to use.
+ * Implement the mandatory function as a NOP
+ * ---------------------------------------------
+ */
+func platform_mem_init
+ bx lr
+endfunc platform_mem_init
+
+func plat_get_my_entrypoint
+ mov r0, #0
+ bx lr
+endfunc plat_get_my_entrypoint
+
+func plat_crash_console_init
+ mov_imm r0, PLAT_IMX7_BOOT_UART_BASE
+ mov_imm r1, PLAT_IMX7_BOOT_UART_CLK_IN_HZ
+ mov_imm r2, PLAT_IMX7_CONSOLE_BAUDRATE
+ b imx_crash_uart_init
+endfunc plat_crash_console_init
+
+func plat_crash_console_putc
+ mov_imm r1, PLAT_IMX7_BOOT_UART_BASE
+ b imx_crash_uart_putc
+endfunc plat_crash_console_putc
+
+func plat_crash_console_flush
+ /* Placeholder */
+ mov r0, #0
+ bx lr
+endfunc plat_crash_console_flush
+
+func plat_panic_handler
+ mov r3, #HAB_ROM_VECTOR_TABLE_FAILSAFE
+ ldr r3, [r3, #0]
+ blx r3
+endfunc plat_panic_handler