From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Wed, 17 May 2017 11:00:26 -0400 Subject: [U-Boot] [PATCH] ARM: dts: am335x: disable mmc3 In-Reply-To: References: <1495022156-4131-1-git-send-email-jjhiblot@ti.com> <20170517130410.GL5701@bill-the-cat> Message-ID: <20170517150026.GS5701@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 04:46:29PM +0200, Jean-Jacques Hiblot wrote: > > > On 17/05/2017 15:04, Tom Rini wrote: > >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, > I tried and it doesn't work. The XXX-u-boot.dtsi being included at > the beginning of the DTS, it cannot override the > 'status = "okay"' present in am335x-evm.dts. Ug, that's a problem. I'm working on it then, thanks! -- Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: