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path: root/drivers/usb/gadget/fotg210.c
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* usb: modify usb_gadget_handle_interrupts to take controller indexKishon Vijay Abraham I2015-04-14-1/+1
| | | | | | | | | | | | | | Since we support multiple dwc3 controllers to be existent at the same time, in order to handle the interrupts of a particular dwc3 controller usb_gadget_handle_interrutps should take controller index as an argument. Hence the API of usb_gadget_handle_interrupts is modified to take controller index as an argument and made the corresponding changes to all the usb_gadget_handle_interrupts calls. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* usb: gadget: fotg210: EP0 fifo empty indication is non-reliableKuo-Jung Su2014-01-13-0/+1
| | | | | | | | | | | | | | | | | | The fifo size of ep0 is 64 bytes, and if the packet size grater than 64 bytes, the driver would have to fill up the fifo multiple times, and before filling up the fifo, the driver should make sure the fifo is empty by checking fifo empty indication. However there is a hardware bug that the fifo empty indication is somehow a bit earlier than fifo reset. So if I don't add an extra delay here, the data might be corrupted. (i.e., 1 byte missing) After a couple of tests, it truns out that 1 usec is good enough. This workaround should be applied to all hardware revisions. Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com> CC: Marek Vasut <marex@denx.de>
* usb: gadget: fotg210: add w1c interrupt status supportKuo-Jung Su2014-01-13-0/+14
| | | | | | | | | | | | | | Since hardware revision 1.11.0, the following interrupt status registers are now W1C (i.e., write 1 clear): 1. Interrupt Source Group 0 Register (0x144) (EP0 Abort: BIT5) 2. Interrupt Source Group 2 Register (0x14C) (All bits) And before revision 1.11.0, these registers are all R/W. Which means software must write a 0 to clear the status. Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com> CC: Marek Vasut <marex@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-2/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* usb: gadget: add Faraday FOTG210 USB gadget supportKuo-Jung Su2013-06-12-0/+948
The Faraday FOTG210 is an OTG chip which could operate as either an EHCI Host or a USB Device at a time. Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com> CC: Marek Vasut <marex@denx.de>