From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.ferre@atmel.com (Nicolas Ferre) Date: Mon, 9 Jul 2012 16:52:16 +0200 Subject: [PATCH 2/2] ARM: at91: clock: fix PLLA overclocked warning In-Reply-To: <1341825375-9143-1-git-send-email-jiri.prchal@aksignal.cz> References: <1341825375-9143-1-git-send-email-jiri.prchal@aksignal.cz> Message-ID: <4FFAF020.1080805@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Jiri, On 07/09/2012 11:16 AM, Jiri Prchal : > This patch fix false warning "PLLA overclocked". Maximum frequency > for sam9260 is 210MHz as stated in atmel's datasheet. Originally there was > plus 4.5%, so I add this 4.5% to new value too. Well, I do not see this 4.5% in addition. It is true that Maximum frequency had been indicated as higher but current value is 210MHz if VDD core is @ 1.8V (for industrial temperature range). > Signed-off-by: Jiri Prchal > --- > arch/arm/mach-at91/clock.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c > index de2ec6b..e004308 100644 > --- a/arch/arm/mach-at91/clock.c > +++ b/arch/arm/mach-at91/clock.c > @@ -707,7 +707,7 @@ static int __init at91_pmc_init(unsigned long main_clock) > if (plla.rate_hz > 800000000) > pll_overclock = true; > } else { > - if (plla.rate_hz > 209000000) > + if (plla.rate_hz > 219000000) Well, I rework this patch using 210 MHz as stated in datasheet. We shall keep this 209 MHz test because at91rm9200 is still using this value. Moreover, I add a new category for 240 MHz. > pll_overclock = true; > } > if (pll_overclock) Thanks, best regards, -- Nicolas Ferre