RE: [PATCH V3 2/2] xen/arm: Add i.MX lpuart early printk support

[Peng Fan <peng.fan@nxp.com>]

Hi Michal,

> -----Original Message-----
> From: Michal Orzel [mailto:michal.orzel@arm.com]
> Sent: 2022年4月8日 18:23
> To: Peng Fan (OSS) <peng.fan@oss.nxp.com>; sstabellini@kernel.org;
> julien@xen.org; Volodymyr_Babchuk@epam.com;
> bertrand.marquis@arm.com
> Cc: andrew.cooper3@citrix.com; george.dunlap@citrix.com;
> jbeulich@suse.com; wl@xen.org; xen-devel@lists.xenproject.org;
> van.freenix@gmail.com; Peng Fan <peng.fan@nxp.com>
> Subject: Re: [PATCH V3 2/2] xen/arm: Add i.MX lpuart early printk support
> 
> Hi Peng,
> 
> On 07.04.2022 04:44, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> >  xen/arch/arm/Kconfig.debug              | 14 +++++++
> >  xen/arch/arm/arm64/debug-imx-lpuart.inc | 52
> +++++++++++++++++++++++++
> >  xen/arch/arm/include/asm/imx-lpuart.h   | 22 +++++------
> >  3 files changed, 77 insertions(+), 11 deletions(-)  create mode
> > 100644 xen/arch/arm/arm64/debug-imx-lpuart.inc
> >
> > diff --git a/xen/arch/arm/include/asm/imx-lpuart.h
> > b/xen/arch/arm/include/asm/imx-lpuart.h
> > index 111640edb4..26e2cf0249 100644
> > --- a/xen/arch/arm/include/asm/imx-lpuart.h
> > +++ b/xen/arch/arm/include/asm/imx-lpuart.h
> > @@ -30,10 +30,10 @@
> >  #define UARTFIFO          (0x28)
> >  #define UARTWATER         (0x2c)
> >
> > -#define UARTSTAT_TDRE     BIT(23)
> > -#define UARTSTAT_TC       BIT(22)
> > -#define UARTSTAT_RDRF     BIT(21)
> > -#define UARTSTAT_OR       BIT(19)
> > +#define UARTSTAT_TDRE     BIT(23, UL)
> > +#define UARTSTAT_TC       BIT(22, UL)
> > +#define UARTSTAT_RDRF     BIT(21, UL)
> > +#define UARTSTAT_OR       BIT(19, UL)
> >
> >  #define UARTBAUD_OSR_SHIFT (24)
> >  #define UARTBAUD_OSR_MASK (0x1f)
> > @@ -42,13 +42,13 @@
> >  #define UARTBAUD_TDMAE    (0x00800000)
> >  #define UARTBAUD_RDMAE    (0x00200000)
> >
> > -#define UARTCTRL_TIE      BIT(23)
> > -#define UARTCTRL_TCIE     BIT(22)
> > -#define UARTCTRL_RIE      BIT(21)
> > -#define UARTCTRL_ILIE     BIT(20)
> > -#define UARTCTRL_TE       BIT(19)
> > -#define UARTCTRL_RE       BIT(18)
> > -#define UARTCTRL_M        BIT(4)
> > +#define UARTCTRL_TIE      BIT(23, UL)
> > +#define UARTCTRL_TCIE     BIT(22, UL)
> > +#define UARTCTRL_RIE      BIT(21, UL)
> > +#define UARTCTRL_ILIE     BIT(20, UL)
> > +#define UARTCTRL_TE       BIT(19, UL)
> > +#define UARTCTRL_RE       BIT(18, UL)
> > +#define UARTCTRL_M        BIT(4, UL)
> >
> >  #define UARTWATER_RXCNT_OFF     24
> >
> 
> I find it a bit strange that you fix the header file in the patch 2/2 while patch
> 1/2 introduces it. Could you do these fixes in the patch where you create this
> file?

Oops. I missed to merge that BIT fix into patch 1. Just send out V4.

Thanks,
Peng.

> 
> Cheers,
> Michal