On Tue, Jun 9, 2015 at 2:05 PM, Robert Nelson <[email protected]> wrote: > On Tue, Jun 9, 2015 at 1:07 PM, Jonathan Ross <[email protected]> wrote: >> Is it possible to have an I2C bus and uart1 enabled simultaneously? >> I2C1 on pins 17 and 18 is clear of the uarts, but then the 2 bus pins appear >> repeated on pins 24 and 26, which are used for uart1. >> Is there a way to only enable I2C1 on pins 17 and 18, and not 24 and 26 - >> either using capemanager or device tree? > > Should be no problem with v4.1.0: > > https://github.com/beagleboard/bb.org-overlays > > bone_capemgr.enable_partno=BB-UART1,BB-I2C1
Works quite well: debian@beaglebone:~$ uname -r 4.1.0-rc7-bone7 debian@beaglebone:~$ dmesg | grep cape [ 0.000000] Kernel command line: console=ttyO0,115200n8 bone_capemgr.enable_partno=BB-UART1,BB-I2C1 root=UUID=a55f99f7-87e9-4af6-86fc-d90989cde10b ro rootfstype=ext4 rootwait fixrtc coherent_pool=1M quiet [ 3.239892] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,0A5B,2313BBBK3313' [ 3.239912] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black [ 3.292391] bone_capemgr bone_capemgr: slot #0: No cape found [ 3.352398] bone_capemgr bone_capemgr: slot #1: No cape found [ 3.412378] bone_capemgr bone_capemgr: slot #2: No cape found [ 3.472379] bone_capemgr bone_capemgr: slot #3: No cape found [ 3.478420] bone_capemgr bone_capemgr: enabled_partno PARTNO 'BB-UART1' VER 'N/A' PR '0' [ 3.478430] bone_capemgr bone_capemgr: slot #4: override [ 3.478443] bone_capemgr bone_capemgr: Using override eeprom data at slot 4 [ 3.478457] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,BB-UART1' [ 3.478539] bone_capemgr bone_capemgr: enabled_partno PARTNO 'BB-I2C1' VER 'N/A' PR '0' [ 3.478548] bone_capemgr bone_capemgr: slot #5: override [ 3.478557] bone_capemgr bone_capemgr: Using override eeprom data at slot 5 [ 3.478569] bone_capemgr bone_capemgr: slot #5: 'Override Board Name,00A0,Override Manuf,BB-I2C1' [ 3.478840] bone_capemgr bone_capemgr: initialized OK. [ 3.503261] bone_capemgr bone_capemgr: slot #4: dtbo 'BB-UART1-00A0.dtbo' loaded; overlay id #0 [ 4.546370] bone_capemgr bone_capemgr: slot #5: dtbo 'BB-I2C1-00A0.dtbo' loaded; overlay id #1 debian@beaglebone:~$ dmesg | grep serial [ 3.065243] omap_uart 44e09000.serial: no wakeirq for uart0 [ 3.065411] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 154, base_baud = 3000000) is a OMAP UART0 [ 3.495054] omap_uart 48022000.serial: no wakeirq for uart1 [ 3.495218] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 180, base_baud = 3000000) is a OMAP UART1 debian@beaglebone:~$ dmesg | grep i2c [ 2.710047] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe [ 2.710088] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring probe [ 3.085983] i2c /dev entries driver [ 3.231961] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz [ 3.233535] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz [ 4.546274] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz debian@beaglebone:~$ cat /proc/cmdline console=ttyO0,115200n8 bone_capemgr.enable_partno=BB-UART1,BB-I2C1 root=UUID=a55f99f7-87e9-4af6-86fc-d90989cde10b ro rootfstype=ext4 rootwait fixrtc coherent_pool=1M quiet Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
