From mboxrd@z Thu Jan 1 00:00:00 1970 From: eddie.huang@mediatek.com (Eddie Huang) Date: Mon, 12 Jan 2015 21:08:24 +0800 Subject: [PATCH v2 4/4] Document: Modify 8250 earlycon kernel parameters In-Reply-To: <1421068104-30463-1-git-send-email-eddie.huang@mediatek.com> References: <1421068104-30463-1-git-send-email-eddie.huang@mediatek.com> Message-ID: <1421068104-30463-5-git-send-email-eddie.huang@mediatek.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add options "noinit" to avoid init serial hardware in 8250_early.c Signed-off-by: Eddie Huang --- Documentation/kernel-parameters.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4df73da..03a4e9b 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -948,7 +948,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. UART at the specified I/O port or MMIO address. MMIO inter-register address stride is either 8-bit (mmio) or 32-bit (mmio32). - The options are the same as for ttyS, above. + The options have two choices: one is the same as for + ttyS, above. The other is noinit, which means don't + initialize serial hardware, use the same setting as + loader. pl011, Start an early, polled-mode console on a pl011 serial -- 1.8.1.1.dirty