From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Wed, 17 May 2017 09:04:10 -0400 Subject: [U-Boot] [PATCH] ARM: dts: am335x: disable mmc3 In-Reply-To: <1495022156-4131-1-git-send-email-jjhiblot@ti.com> References: <1495022156-4131-1-git-send-email-jjhiblot@ti.com> Message-ID: <20170517130410.GL5701@bill-the-cat> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wed, May 17, 2017 at 01:55:56PM +0200, Jean-Jacques Hiblot wrote: > SDIO is not supported in u-boot, there is no point in enabling mmc3. > > Signed-off-by: Jean-Jacques Hiblot > --- > > Tom, > > this will fix the problem youreported with commit b5511d6cb8dc601efc14b8cf60755 > on am335x-evm. For the record, the problem is that the clock of mmc 3 is not > enbled by the arch code. With DM_MMC enabled, mmc3 gets probed and u-boot crashes > when mmc3's registers are accessed for the first time. > > Jean-Jacques > > > arch/arm/dts/am335x-evm.dts | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/dts/am335x-evm.dts b/arch/arm/dts/am335x-evm.dts > index a6f20af..e94fcad 100644 > --- a/arch/arm/dts/am335x-evm.dts > +++ b/arch/arm/dts/am335x-evm.dts > @@ -721,12 +721,14 @@ > }; > > &mmc3 { > + /* disable MMC3 as SDIO is not supported in U-Boot */ > + status = "disabled"; > + > /* these are on the crossbar and are outlined in the > xbar-event-map element */ > dmas = <&edma 12 > &edma 13>; > dma-names = "tx", "rx"; > - status = "okay"; > vmmc-supply = <&wlan_en_reg>; > bus-width = <4>; > pinctrl-names = "default"; Please put this into arch/arm/dts/am335x-evm-u-boot.dtsi instead, thanks! -- Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: