From: Ye Li <ye.li@oss.nxp.com>
To: "Sébastien Szymanski" <sebastien.szymanski@armadeus.com>,
u-boot@lists.denx.de
Cc: Tom Rini <trini@konsulko.com>, Peng Fan <peng.fan@nxp.com>,
Andrew Goodbody <andrew.goodbody@linaro.org>,
Kory Maincent <kory.maincent@bootlin.com>,
Julien Boibessot <julien.boibessot@armadeus.com>
Subject: Re: [PATCH 1/2] serial: lpuart: fix RXFE filed offset for i.MX9
Date: Wed, 25 Feb 2026 11:32:29 +0800 [thread overview]
Message-ID: <dc163ea7-9063-4dfb-a39a-e643c0bcccf1@oss.nxp.com> (raw)
In-Reply-To: <20260218-lpuart-fix-rxfe-offset-v1-1-86a78b224f13@armadeus.com>
On 2/18/2026 10:59 PM, Sébastien Szymanski wrote:
> Like i.MX8 and i.MXRT, on i.MX9, the Receive RX FIFO Enable (RXFE) field
> in LPUART FIFO register is bit 3, so set FIFO_RXFE to 0x08 on i.MX9 too.
>
> Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
> ---
> drivers/serial/serial_lpuart.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
> index 9fdb6503085d..bbce59443388 100644
> --- a/drivers/serial/serial_lpuart.c
> +++ b/drivers/serial/serial_lpuart.c
> @@ -53,7 +53,8 @@
> #define FIFO_RXSIZE_MASK 0x7
> #define FIFO_RXSIZE_OFF 0
> #define FIFO_TXFE 0x80
> -#if defined(CONFIG_ARCH_IMX8) || defined(CONFIG_ARCH_IMXRT)
> +#if defined(CONFIG_ARCH_IMX8) || defined (CONFIG_ARCH_IMX9) || \
> + defined(CONFIG_ARCH_IMXRT)
> #define FIFO_RXFE 0x08
> #else
> #define FIFO_RXFE 0x40
Previous value 0x40 is wrong for all platforms. You can directly change
it to 0x08 and remove all ARCH marcos.
Best regards,
Ye Li
>
next prev parent reply other threads:[~2026-02-25 3:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-18 14:59 [PATCH 0/2] serial: lpuart: fix RXFE filed offset and handle Overrun flag Sébastien Szymanski
2026-02-18 14:59 ` [PATCH 1/2] serial: lpuart: fix RXFE filed offset for i.MX9 Sébastien Szymanski
2026-02-25 2:24 ` Peng Fan (OSS)
2026-02-25 3:32 ` Ye Li [this message]
2026-02-18 14:59 ` [PATCH 2/2] serial: lpuart: handle Overrun flag Sébastien Szymanski
2026-02-25 2:24 ` Peng Fan (OSS)
2026-02-19 13:28 ` [PATCH 0/2] serial: lpuart: fix RXFE filed offset and " Kory Maincent
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