Barebox version: 2020.07.0
Hardware: i.MX6 ULL with external Microchip USB Hub attached
I got a bug report that some newer USB memory sticks do not work with
barebox. While with barebox-2020.01 these devices are not recognized at all, in
barebox-2020.07 I get at least some warnings:
# usb
> usb:
On 20-08-04 23:41, Anees Rehman wrote:
...
> +static noinline void imx7d_sxb_sram_setup(void)
> +{
> + int ret;
> +
> + relocate_to_current_adr();
> + setup_c();
> +
> + pr_debug("configuring ddr...\n");
> + write_regs(imx7d_ixb_dcd, ARRAY_SIZE(imx7d_ixb_dcd));
> +
> + ret
The barebox fec driver supports enet_clk out since commit 2de277264c
("i.MX: fec: Enable all clocks specified for FEC") but unfortunately
this clock is not specified upstream. Enable it here till we can use it
from upstream to make it clear that IMX6QDL_CLK_ENET_REF should be used
as enet_out clock
The commit is based on linux commit:
8<---
commit 9f55eb92441883a1afca48dc8d32bf62c4d8e833
Author: Fugang Duan
Date: Tue Jul 28 15:30:39 2015 +0800
ARM: imx6ul: add fec bits to GPR syscon definition
FEC requires additional bits to
Setup the ENET TX reference clk to get it from the internal clock from
anatop. This is the default value for newer imx6 processors like: 6sx,
6ul, 6ull. So it should be safe to set it as default for imx6q/d too.
It will be output on the pad if ENET_REF_CLK is muxed which can be used
to clock a phy
