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-rw-r--r--arch/arm/include/asm/arch-mx7/mx7_plugin.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx7/mx7_plugin.S b/arch/arm/include/asm/arch-mx7/mx7_plugin.S
index 86bedf9..1054d4f 100644
--- a/arch/arm/include/asm/arch-mx7/mx7_plugin.S
+++ b/arch/arm/include/asm/arch-mx7/mx7_plugin.S
@@ -30,6 +30,25 @@ plugin_start:
imx7_qos_setting
/*
+ * Check if we are in USB serial download mode and immediately return to ROM
+ * Need to check USB CTRL clock firstly, then check the USBx_nASYNCLISTADDR
+ */
+ ldr r0, =0x30384680
+ ldr r1, [r0]
+ cmp r1, #0
+ beq normal_boot
+
+ ldr r0, =0x30B10158
+ ldr r1, [r0]
+ cmp r1, #0
+ beq normal_boot
+
+ pop {r0-r4, lr}
+ bx lr
+
+normal_boot:
+
+/*
* The following is to fill in those arguments for this ROM function
* pu_irom_hwcnfg_setup(void **start, size_t *bytes, const void *boot_data)
* This function is used to copy data from the storage media into DDR.