Signed-off-by: Xiangfu Liu <xian...@openmobilefree.net>
Acked-by: Daniel <z...@ingenic.cn>
Acked-by: ChangWei Jia <cw...@ingenic.cn>
---
drivers/mtd/nand/jz4740_nand.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index 32b41ef..b15c4ea 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -285,6 +285,18 @@ extern int serial_init(void);
pll_init();
serial_init();
sdram_init();
+
+#if defined(CONFIG_NANONOTE)
+#define KEY_U_OUT (32 * 2 + 16)
+#define KEY_U_IN (32 * 3 + 19)
+ __gpio_as_input(KEY_U_IN);
+ __gpio_enable_pull(KEY_U_IN);
+ __gpio_as_output(KEY_U_OUT);
+ __gpio_clear_pin(KEY_U_OUT);
+
+ if (__gpio_get_pin(KEY_U_IN) == 0)
+ usb_boot();
+#endif
#endif
uint32_t reg;
--
1.7.0.4
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