[U-Boot] [PATCH] tegra: add Colibri T20 board support

[Lucas Stach]

Am Donnerstag, den 27.09.2012, 17:09 -0600 schrieb Stephen Warren:
> On 09/27/2012 05:03 PM, Lucas Stach wrote:
> > Am Donnerstag, den 27.09.2012, 16:49 -0600 schrieb Stephen Warren:
> >> On 09/27/2012 03:52 PM, Lucas Stach wrote:
> >>> This adds board support for the Toradex Colibri T20 module.
> >>>
> >>> Working functions:
> >>> - MMC boot
> >>> - USB boot
> >>> - Network
> >>> - NAND environment
> >>
> >>> diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c
> >>
> >>> +#ifdef CONFIG_USB_EHCI_TEGRA
> >>> +void pin_mux_usb(void)
> >>> +{
> >>> +	/* USB 1 aka Tegra USB port 3 */
> >>> +	pinmux_tristate_disable(PINGRP_SPIG);
> >>> +
> >>> +	/* USB 3 aka Tegra USB port 2 */
> >>
> >> Re: the comments:
> >>
> >> The only reason other board files have HW port USB3 listed as DT alias
> >> usb0 is because HW port USB3 was the most useful port on those boards,
> >> and the Tegra USB driver only supported the first listed HW port. Now
> >> that the Tegra USB driver supports any/all of the HW ports, you could
> >> just arrange the aliases in DT so that HW USB1 == user-visible USB1, etc.
> >>
> > I arranged them in that way so they match best with the connector label
> > on the carrier board.
> 
> OK, that makes sense then.
> 
> >>> diff --git a/include/configs/colibri_t20.h b/include/configs/colibri_t20.h
> >>
> >>> +/* Environment in NAND, 64K is a bit excessive but erase block is 256K anyway */
> >>> +#define CONFIG_ENV_IS_IN_NAND
> >>> +#define CONFIG_ENV_OFFSET              (SZ_2M)
> >>> +#undef CONFIG_ENV_SIZE /* undef size from tegra20-common.h */
> >>> +#define CONFIG_ENV_SIZE                (SZ_64K)
> >>
> >> Any particular reason to change the environment size? All the other
> >> boards that have eMMC put the environment at the end of the second eMMC
> >> boot-block even when NAND is also available. Is there a particular
> >> reason not to do so for Colibri too? Does Colibri boot (BCT+bootloader
> >> image) from eMMC or NAND?
> >>
> > Colibri has no eMMC, it boots from NAND.
> 
> Oh, so "MMC boot" in the patch description should be "SD boot" then?
> 
Right, last minute additions don't work really well. ;)