[U-Boot] [PATCH] imx: mx7: Add support for USB boot mode

[Eric Nelson]

This adds support for USB boot mode on the i.MX7D SoC, which
is most useful when doing U-Boot development on this chip.

i.e., it enables you to enter the ROM boot loader's serial
download protocol using the command:

=> bmode usb

Signed-off-by: Eric Nelson <eric at nelint.com>
---
 arch/arm/mach-imx/mx7/soc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-imx/mx7/soc.c b/arch/arm/mach-imx/mx7/soc.c
index 87bf105..63ee59f 100644
--- a/arch/arm/mach-imx/mx7/soc.c
+++ b/arch/arm/mach-imx/mx7/soc.c
@@ -372,6 +372,8 @@ void set_wdog_reset(struct wdog_regs *wdog)
  * to SBMR1, which will determine the boot device.
  */
 const struct boot_mode soc_boot_modes[] = {
+	{"usb",		MAKE_CFGVAL(0x01, 0x00, 0x00, 0x00)},
+
 	{"ecspi1:0",	MAKE_CFGVAL(0x00, 0x60, 0x00, 0x00)},
 	{"ecspi1:1",	MAKE_CFGVAL(0x40, 0x62, 0x00, 0x00)},
 	{"ecspi1:2",	MAKE_CFGVAL(0x80, 0x64, 0x00, 0x00)},
-- 
2.7.4