From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Schwierzeck Date: Thu, 26 May 2016 00:17:35 +0200 Subject: [U-Boot] [PATCH] serial: 16550: Add JZ47xx support In-Reply-To: <1464135571-7113-1-git-send-email-marex@denx.de> References: <1464135571-7113-1-git-send-email-marex@denx.de> Message-ID: <5746247F.9010600@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Am 25.05.2016 um 02:19 schrieb Marek Vasut: > The Ingenic JZ47xx requires special bit (UART_EN) set in FCR register > in order to work at all. Add this special case handling into the driver. > > Signed-off-by: Marek Vasut > Cc: Tom Rini > Cc: Simon Glass > Cc: Daniel Schwierzeck > Cc: Paul Burton > --- > drivers/serial/ns16550.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c > index 30ba0aa..1323881 100644 > --- a/drivers/serial/ns16550.c > +++ b/drivers/serial/ns16550.c > @@ -50,6 +50,14 @@ DECLARE_GLOBAL_DATA_PTR; > #endif > #endif > > +#ifdef CONFIG_ARCH_JZ47XX > +#undef UART_FCRVAL > +/* Ingenic JZ47xx SoCs require that a 'UART Module Enable' bit be set */ > +#define UART_FCR_UME 0x10 > +#define UART_FCRVAL (UART_FCR_FIFO_EN | UART_FCR_RXSR | \ > + UART_FCR_TXSR | UART_FCR_UME) > +#endif I think this could be added as DT property > + > #ifndef CONFIG_SYS_NS16550_IER > #define CONFIG_SYS_NS16550_IER 0x00 > #endif /* CONFIG_SYS_NS16550_IER */ > -- - Daniel -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 473 bytes Desc: OpenPGP digital signature URL: