Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751631Ab3FZBxp (ORCPT ); Tue, 25 Jun 2013 21:53:45 -0400 Received: from mga02.intel.com ([134.134.136.20]:22403 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751195Ab3FZBxj (ORCPT ); Tue, 25 Jun 2013 21:53:39 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,940,1363158000"; d="scan'208";a="335543119" From: Darren Hart To: Linux Kernel Mailing List , "H. Peter Anvin" , peter.p.waskiewicz.jr@intel.com, andriy.shevchenko@linux.intel.com, danders@circuitco.com, vishal.l.verma@intel.com, dvhart@linux.intel.com Cc: Greg Kroah-Hartman , Jiri Slaby , linux-serial@vger.kernel.org Subject: [PATCH 2/8] pch_uart: Add uart_clk selection for the MinnowBoard Date: Tue, 25 Jun 2013 18:53:22 -0700 Message-Id: <6cc125b9eb85dd3cae4a2496fdb7f0d17b18f930.1372211451.git.dvhart@linux.intel.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1578 Lines: 46 Use DMI_BOARD_NAME to determine if we are running on a MinnowBoard and set the uart clock to 50MHz if so. This removes the need to pass the user_uartclk to the kernel at boot time. Signed-off-by: Darren Hart Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: "H. Peter Anvin" Cc: Peter Waskiewicz Cc: Andy Shevchenko Cc: linux-serial@vger.kernel.org --- drivers/tty/serial/pch_uart.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index 21a7e17..572d481 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -217,6 +217,7 @@ enum { #define FRI2_64_UARTCLK 64000000 /* 64.0000 MHz */ #define FRI2_48_UARTCLK 48000000 /* 48.0000 MHz */ #define NTC1_UARTCLK 64000000 /* 64.0000 MHz */ +#define MINNOW_UARTCLK 50000000 /* 50.0000 MHz */ struct pch_uart_buffer { unsigned char *buf; @@ -398,6 +399,10 @@ static int pch_uart_get_uartclk(void) strstr(cmp, "nanoETXexpress-TT"))) return NTC1_UARTCLK; + cmp = dmi_get_system_info(DMI_BOARD_NAME); + if (cmp && strstr(cmp, "MinnowBoard")) + return MINNOW_UARTCLK; + return DEFAULT_UARTCLK; } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/