This is necessary to distinguish between the "dfu-util --detach" and
the "dfu-util --reset" requests.
The default weak implementation of dfu_usb_get_reset() unconditionally
reboots the device, but we want to be able to continue the boot.scr
execution after writing the kernel, fdt and ramdisk to RAM via DFU.
Signed-off-by: Siarhei Siamashka <siarhei.siamas...@gmail.com>
---
drivers/usb/musb-new/sunxi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index a146c08..5eb8d19 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -166,6 +166,17 @@ static void USBC_ConfigFIFO_Base(void)
}
/******************************************************************************
+ * Needed for the DFU polling magic
+
******************************************************************************/
+
+static u8 last_int_usb;
+
+bool dfu_usb_get_reset(void)
+{
+ return !!(last_int_usb & MUSB_INTR_RESET);
+}
+
+/******************************************************************************
* MUSB Glue code
******************************************************************************/
@@ -176,6 +187,7 @@ static irqreturn_t sunxi_musb_interrupt(int irq, void
*__hci)
/* read and flush interrupts */
musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+ last_int_usb = musb->int_usb;
if (musb->int_usb)
musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb);
musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
--
2.4.10
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