From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yigit Can Date: Mon, 30 Jun 2003 12:08:11 +0300 Subject: [U-Boot-Users] SPI + SCC problem References: <20030630085349.A11A9C592A@atlas.denx.de> Message-ID: <001901c33ee7$214ae5f0$3002a8c0@yigitcan> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de I use 3 different drivers, I'm using standard TQ850L_config in kernel (eldk 2.0.2) first one comes with eldk I only made a small modification to compile with TQM850L. second is an interrupt driven driver working with TQM862L (I have verified it) and I wrote the last one using 850 user-manual to be sure. All has the same problem when I choose SCC1 they work perfectly ,but when I choose the other SCCs or disable the SCC ethernet, they send data but they stall while receiving becouse the buffer descriptor cbd_sc register does not change (rx_bdf->cbd_sc). Best regards, Yigit Can ----- Original Message ----- From: "Wolfgang Denk" To: "Yigit Can" Cc: Sent: Monday, June 30, 2003 11:53 AM Subject: Re: [U-Boot-Users] SPI + SCC problem > In message <007c01c33ee0$3f4c3060$3002a8c0@yigitcan> you wrote: > > Yes, I attach an oscilloscope and I can see it sends the data properly > > > > in addition to this problem, > > the drivers ONLY work with SCC1, choosing the other SCCs or disabling the > > SCC ethernet makes no difference. > > I lost you here. Which driver work only with SCC1? > > We have been using the SPI driver in several projects on different > hardware, and did not notice any problems. > > Did you check for possible conflicts in the usage of port pins? > > Best regards, > > Wolfgang Denk > > -- > Software Engineering: Embedded and Realtime Systems, Embedded Linux > Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de > Philosophy is a game with objectives and no rules. > Mathematics is a game with rules and no objectives. >