[U-Boot] u-boot-xlnx 'master-next' branch: usb not working for microzed

[U-Boot] u-boot-xlnx 'master-next' branch: usb not working for microzed

[oller]

Hi,

I've been working with xilinx's microzed board (zynq) recently. The actual
goal is a fsbl-less u-boot.

But even with fsbl - USB is not working in u-boot-xlnx 'master-next' branch.
At the same time it works in the 'master'. Mostly interested in
'master-next'.

Has anyone tried USB in the 'master-next' for microzed/zedboard?

OS: Ubuntu 13.04 x64
board: MicroZed
u-boot-xlnx 'master-next' rev: bbd91fc9ae290c31dc52fd8322f43f67ddd39247
u-boot-xlnx 'master' rev: 0f6dbff16b792a106f52ca37f4503335af30601b
cross-tools: cross compiler built with yocto poky:
> export CROSS_COMPILE=arm-poky-linux-gnueabi-
> export
> PATH=/opt/poky/1.4.2/sysroots/x86_64-pokysdk-linux/usr/bin/armv7a-vfp-neon-poky-linux-gnueabi/:$PATH

incorrect output:
> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> ehci-pci: EHCI PCI platform driver

correct output:
> Found SMSC USB3320 ULPI transceiver.
> ULPI integrity check: passed.
> xusbps-ehci xusbps-ehci.0: Xilinx PS USB EHCI Host Controller
> xusbps-ehci xusbps-ehci.0: new USB bus registered, assigned bus number 1
> xusbps-ehci xusbps-ehci.0: irq 53, io mem 0x00000000
> xusbps-ehci xusbps-ehci.0: USB 2.0 started, EHCI 1.00

Thanks



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[U-Boot] u-boot-xlnx 'master-next' branch: usb not working for microzed

[Jagan Teki]

Hi,

On Tue, Oct 15, 2013 at 12:00 AM, oller <oleg@elphel.com> wrote:
> Hi,
>
> I've been working with xilinx's microzed board (zynq) recently. The actual
> goal is a fsbl-less u-boot.
>
> But even with fsbl - USB is not working in u-boot-xlnx 'master-next' branch.
> At the same time it works in the 'master'. Mostly interested in
> 'master-next'.
>
> Has anyone tried USB in the 'master-next' for microzed/zedboard?
Please give me some time, will try and let you know.

-- 
Thanks,
Jagan.
--------
Jagannadha Sutradharudu Teki,
E: jagannadh.teki at gmail.com, P: +91-9676773388
Engineer - System Software Hacker
U-boot - SPI Custodian and Zynq APSOC
Ln: http://www.linkedin.com/in/jaganteki

[U-Boot] u-boot-xlnx 'master-next' branch: usb not working for microzed

[Oleg Dzhimiev]

Thanks to Michal - in the u-boot-xlnx/master-next (vs /master) the following
lines were removed:
board/xilinx/zynq/board.c:
-	/* temporary hack to take USB out of reset til the is fixed
-	 * in Linux
-	 */
-	writel(0x80, 0xe000a204);
-	writel(0x80, 0xe000a208);
-	writel(0x80, 0xe000a040);
-	writel(0x00, 0xe000a040);
-	writel(0x80, 0xe000a040);

This is board-specific (but the same for zedboard & microzed) USB reset
wired to MIO7. Without these lines USB reset stays active.

Thanks




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[U-Boot] u-boot-xlnx 'master-next' branch: usb not working for microzed

[Michal Simek]

On 10/16/2013 08:18 AM, Oleg Dzhimiev wrote:
> Thanks to Michal - in the u-boot-xlnx/master-next (vs /master) the following
> lines were removed:
> board/xilinx/zynq/board.c:
> -	/* temporary hack to take USB out of reset til the is fixed
> -	 * in Linux
> -	 */
> -	writel(0x80, 0xe000a204);
> -	writel(0x80, 0xe000a208);
> -	writel(0x80, 0xe000a040);
> -	writel(0x00, 0xe000a040);
> -	writel(0x80, 0xe000a040);
> 
> This is board-specific (but the same for zedboard & microzed) USB reset
> wired to MIO7. Without these lines USB reset stays active.

Please keep this discussion out of mainline u-boot because it has
nothing to do with the code in the mainline.

I will send you separate email about this.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform


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