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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2015-10-25 06:44:47 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-11-22 11:30:59 +0100 |
| commit | 6047a3a9c9cf88c38b0b7b99bfeb4edf6661acc8 (patch) | |
| tree | 39c098c0e263ed78b1a7a422eda089386dbe8243 /drivers/usb/musb-new | |
| parent | 2a909c5f7a4e645260e5d01313e15371a8c55eba (diff) | |
| download | talos-obmc-uboot-6047a3a9c9cf88c38b0b7b99bfeb4edf6661acc8.tar.gz talos-obmc-uboot-6047a3a9c9cf88c38b0b7b99bfeb4edf6661acc8.zip | |
sunxi: musb: Implement dfu_usb_get_reset()
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.siamashka@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/usb/musb-new')
| -rw-r--r-- | drivers/usb/musb-new/sunxi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index a146c0861f..5eb8d19b74 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); |
