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Date: Mon, 7 Oct 2019 21:22:56 +0530 From: Anand Moon <linux.amoon@...il.com> To: Neil Armstrong <narmstrong@...libre.com> Cc: Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Kevin Hilman <khilman@...libre.com>, Martin Blumenstingl <martin.blumenstingl@...glemail.com>, Jerome Brunet <jbrunet@...libre.com>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, devicetree <devicetree@...r.kernel.org>, linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, linux-amlogic@...ts.infradead.org, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: [RFCv1 5/5] arm64/ARM: configs: Change CONFIG_PWM_MESON from m to y Hi Neil, On Mon, 7 Oct 2019 at 19:55, Neil Armstrong <narmstrong@...libre.com> wrote: > > On 07/10/2019 15:16, Anand Moon wrote: > > Using microSD card we cannot get the mainline kernel to boot > > What's the link with microSD card here ? Well I thought that the PWM failed stop's booting further on linux kernel. But looking into kernelcli.org it seem to be working fine, but not at my end. [0] https://storage.kernelci.org/media/master/v5.4-rc1-82-gc0e284ccfeda/arm64/defconfig/gcc-8/lab-baylibre/boot-meson-g12b-odroid-n2.txt > > > using mainline u-boot it fails with below logs. > > Build PWM_MESSON as build-in solve the issue. > > > > [ 1.569240] meson-gx-mmc ffe05000.sd: Got CD GPIO > > [ 1.599227] pwm-regulator regulator-vddcpu-a: Failed to get PWM: -517 > > [ 1.600605] pwm-regulator regulator-vddcpu-b: Failed to get PWM: -517 > > [ 1.607166] pwm-regulator regulator-vddcpu-a: Failed to get PWM: -517 > > [ 1.613273] pwm-regulator regulator-vddcpu-b: Failed to get PWM: -517 > > [ 1.619931] hctosys: unable to open rtc device (rtc0) > > > > Cc: Martin Blumenstingl <martin.blumenstingl@...glemail.com> > > Cc: Jerome Brunet <jbrunet@...libre.com> > > Cc: Neil Armstrong <narmstrong@...libre.com> > > Signed-off-by: Anand Moon <linux.amoon@...il.com> > > --- > > Odroid N2 Schematics says "GPIOC_6 should not pulled low if GPIOC is not > > work as SDCARD" > > Sorry, what's the link with the PWM build-in, and your case ? > Sorry I linked two issues with this commit message. > This comment is linked to the comment in the datasheet: > "" > If GPIOC is not work as SDIO port, please do not pull CARD_DET(GPIOC_6) low when system booting > up, to avoid romcode trying to boot from SD CARD. > "" > Seems pretty explicit for me. > Ok I will recheck this at my end. > > Is their any other approch to help resolve this issue. > > > > Boot log failed with cold boot: > > [0] https://pastebin.com/cEtWq2iX > > --- > > arch/arm64/configs/defconfig | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig > > index c9a867ac32d4..72f6a7dca0d6 100644 > > --- a/arch/arm64/configs/defconfig > > +++ b/arch/arm64/configs/defconfig > > @@ -774,7 +774,7 @@ CONFIG_MPL3115=m > > CONFIG_PWM=y > > CONFIG_PWM_BCM2835=m > > CONFIG_PWM_CROS_EC=m > > -CONFIG_PWM_MESON=m > > +CONFIG_PWM_MESON=y > > CONFIG_PWM_RCAR=m > > CONFIG_PWM_ROCKCHIP=y > > CONFIG_PWM_SAMSUNG=y > > > > For these changes without the microSD fail description in the commit log : > Acked-by: Neil Armstrong <narmstrong@...libre.com> Thanks. I will rephrase this without linking the microSD card, with better commit message. Best Regards -Anand
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