On Wednesday, December 14, 2011 06:24:13 PM you wrote: > > I think you will also need to update the get_board_revision function > to ensure that SPL works with very early Overo revisions. > > Note this excerpt from the X-loader get_board_revision funtion: > > /* board revisions <= R2410 connect 4030 irq_1 to gpio112 */ > /* these boards should return a revision number of 0 */ > /* the code below forces a 4030 RTC irq to ensure that gpio112 is low */ > #ifdef CONFIG_DRIVER_OMAP34XX_I2C > i2c_init(CFG_I2C_SPEED, CFG_I2C_SLAVE); > data = 0x01; > i2c_write(0x4B, 0x29, 1, &data, 1); > data = 0x0c; > i2c_write(0x4B, 0x2b, 1, &data, 1); > i2c_read(0x4B, 0x2a, 1, &data, 1); > #endif > > Yup, ugly, but this is the only way to detect revision properly on those > boards. That explains why my Rev0-board is sometimes detected with Rev 1 and the whole i2c stuff is not working because it was not initialized in u-boot :)
will prepare V2 & test tomorrow & thanks for this hint! Andreas _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
