On Tue, May 07, 2024 at 10:14:28AM +0200, Francesco Dolcini wrote: > Hello Martyn, > first thanks for your series, with this we might be able to drop some > downstream branch. > > On Mon, May 06, 2024 at 03:38:44PM +0100, Martyn Welch wrote: > > From: Sjoerd Simons <sjo...@collabora.com> > > > > Provide config fragments to enable USB host as well as USB gadget and DFU > > support for a53 and r5. This relevant fragment is included into the > > am62x EVM a53 defconfig. For the r5, due to the smaller available size, > > the config fragment also disables support for persistent storage to free > > up space for USB support. This fragment needs to be included is DFU > > booting is desired. > > > > The CONFIG_DFU_SF option is placed in the defconfig rather than the > > fragment as this is known not to be supported on all boards that can > > support DFU. > > > > Signed-off-by: Sjoerd Simons <sjo...@collabora.com> > > Signed-off-by: Martyn Welch <martyn.we...@collabora.com> > > ... > > > diff --git a/configs/am62x_r5_usbdfu.config b/configs/am62x_r5_usbdfu.config > > new file mode 100644 > > index 0000000000..772bb2ab93 > > --- /dev/null > > +++ b/configs/am62x_r5_usbdfu.config > > @@ -0,0 +1,28 @@ > > ... > > > +CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments" > > +CONFIG_USB_GADGET_VENDOR_NUM=0x0451 > > +CONFIG_USB_GADGET_PRODUCT_NUM=0x6165 > > This is making this fragment TI _board_ specific, while the file name seems > to imply that this is generic for the TI SoC. Other vendors, using TI > SoCs, will likely want to use their own USB IDs. > > Not a big deal and no need to change it, we'll handle this in our own > defconfig when we'll enable this, but I wanted to mention this.
One thing about fragments, at least so long as it's being processed correctly, is that "make fooboard_config fragA.config fragB.config" means that fragB.config will override fragA.config values. Not that it shouldn't also possibly be re-done as either of: 1) am62x_r5_usbdfu.config + am62x_evm_r5_usbdfu.config 2) better use of imply keyword perhaps in the SoC stanza in one of the K3 Kconfig files. -- Tom
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