Signed-off-by: Xiangfu Liu xiangfu@openmobilefree.net Acked-by: Daniel zpxu@ingenic.cn Acked-by: ChangWei Jia cwjia@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;