[U-Boot] [PATCH v4 2/4] board: evb-rk3399: add api to support dwc3 gadget
Kever Yang
kever.yang at rock-chips.com
Fri Sep 2 11:58:54 CEST 2016
Hi Marek,
On 09/01/2016 04:59 PM, Marek Vasut wrote:
> On 09/01/2016 04:14 AM, Kever Yang wrote:
>> This patch add board_usb_init() and interrupt callback
>> for dwc3 gadget.
>>
>> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
>> ---
>>
>> Changes in v4:
>> - parse DT for quirk, base address and maximum speed
>>
>> Changes in v3:
>> - remove utmi width DT parse from borad init
>>
>> Changes in v2:
>> - parse dt for utmi width
>>
>> board/rockchip/evb_rk3399/evb-rk3399.c | 51 ++++++++++++++++++++++++++++++++++
>> 1 file changed, 51 insertions(+)
>>
>> diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
>> index d394276..58bfa78 100644
>> --- a/board/rockchip/evb_rk3399/evb-rk3399.c
>> +++ b/board/rockchip/evb_rk3399/evb-rk3399.c
>> @@ -7,6 +7,8 @@
>> #include <dm.h>
>> #include <dm/pinctrl.h>
>> #include <asm/arch/periph.h>
>> +#include <usb.h>
>> +#include <dwc3-uboot.h>
>>
>> DECLARE_GLOBAL_DATA_PTR;
>>
>> @@ -54,3 +56,52 @@ void dram_init_banksize(void)
>> gd->bd->bi_dram[0].start = 0x200000;
>> gd->bd->bi_dram[0].size = 0x80000000;
>> }
>> +
>> +#ifdef CONFIG_USB_DWC3
>> +static struct dwc3_device dwc3_device_data = {
>> + .index = 0,
>> +};
>> +
>> +int usb_gadget_handle_interrupts(void)
>> +{
>> + dwc3_uboot_handle_interrupt(0);
>> + return 0;
>> +}
>> +
>> +int board_usb_init(int index, enum usb_init_type init)
>> +{
>> + const void *blob = gd->fdt_blob;
>> + int node;
>> + const char *string;
>> +
>> + node = fdt_node_offset_by_compatible(blob, -1,
>> + "rockchip,rk3399-xhci");
>> + if (node < 0) {
>> + debug("%s dwc3 node not found\n", __func__);
>> + } else {
>> + dwc3_device_data.base = fdtdec_get_addr(blob, node, "reg");
>> + dwc3_device_data.dis_u2_susphy_quirk =
>> + fdtdec_get_int(blob, node,
>> + "snps,dis-u2-susphy-quirk", -1);
>> +
>> + string = fdt_getprop(blob, node, "maximum-speed", NULL);
>> + if (string) {
>> + if (0 == strcmp(string, "super-speed"))
>> + dwc3_device_data.maximum_speed = USB_SPEED_SUPER;
>> + else if (0 == strcmp(string, "high-speed"))
>> + dwc3_device_data.maximum_speed = USB_SPEED_HIGH;
>> + else if (0 == strcmp(string, "full-speed"))
>> + dwc3_device_data.maximum_speed = USB_SPEED_FULL;
>> + else
>> + debug("%s: Cannot decode speed'%s'\n", __func__,
>> + string);
>> + } else {
>> + dwc3_device_data.maximum_speed = USB_SPEED_HIGH;
>> + }
>> + /* Hardcode controller in peripheral mode */
>> + dwc3_device_data.dr_mode = USB_DR_MODE_PERIPHERAL;
>> + }
>> +
>> + return dwc3_uboot_init(&dwc3_device_data);
>> +}
>> +#endif
>>
> So will every board have a copy of this exact code, verbatim ?
>
Yes for rk3399 based board.
Not sure why you ask this question, but I guess you still want these
parse happen in driver instead of board_init()?
I didn't make these code in dwc3 driver because other SoC dts are
different now, they are init in platdata data structure.
To be honest, I want to make the upstream code to support rk3399 dwc3,
but I don't want to touch too much code in other SoC.
Thanks,
- Kever
More information about the U-Boot
mailing list