Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-17 Thread Amit Tomer
> earlycon=xenboot enables the early console for the hardware domain only. > What I meant is having earlyprintk for Xen (see CONFIG_EARLY_PRINTK). This > is used for low-level debug when booting the hypervisor. Ok, Thanks. It's now clear to me. Thanks Amit ___

Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-13 Thread Julien Grall
On 12/03/18 17:33, Amit Tomer wrote: Hi, Hi, This is quite useful to get output without any serial driver. I am quite impressed you managed to debug your serial driver without it :). Actually, we have earlycon=xenboot(suggested by Andre) enabled in Dom0 bootargs and it allowed us to de

Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-12 Thread Amit Tomer
Hi, > This is quite useful to get output without any serial driver. I am quite > impressed you managed to debug your serial driver without it :). Actually, we have earlycon=xenboot(suggested by Andre) enabled in Dom0 bootargs and it allowed us to debug XEN boot further. I am wondering if ealyco

Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-12 Thread Julien Grall
On 12/03/18 14:36, Amit Tomer wrote: Hi Hi Amit, Thanks for the comments. OOI, do you have any plan for adding earlyprintk support for that platform? I didn't think about it but I would look into it. This is quite useful to get output without any serial driver. I am quite impressed

Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-12 Thread Amit Tomer
Hi Thanks for the comments. > OOI, do you have any plan for adding earlyprintk support for that platform? I didn't think about it but I would look into it. > Please give a link to the Linux driver. This would help me for reviewing and > also for future reference. Ok. > This is part of xen/dri

Re: [Xen-devel] [RFC PATCH] xen/arm: Add MVEBU UART driver for Armada 3700 SoC

2018-03-11 Thread Julien Grall
Hi, On 03/10/2018 04:44 PM, Amit Singh Tomar wrote: This patch adds driver for UART controller found on Armada 3700 SoC. OOI, do you have any plan for adding earlyprintk support for that platform? There is no reference manuals available for 3700 SoC in public and this driver is derived by l