Hello, I want to use the spi1 communication with Linux. I downloaded the kernel available on GitHub and I edited the header file board-mx6qd_seco_UDOO.h before cross-compilation: Code: ... MX6Q_PAD_DISP0_DAT20__ECSPI1_SCLK, // MX6Q_PAD_DISP0_DAT21__GPIO_5_15, // pin 37 MX6Q_PAD_DISP0_DAT21__ECSPI1_MOSI, MX6Q_PAD_EIM_A16__GPIO_2_22, // pin 38 MX6Q_PAD_GPIO_18__GPIO_7_13, // pin 39 MX6Q_PAD_NANDF_D0__GPIO_2_0, // pin 40 // MX6Q_PAD_NANDF_D0__USDHC1_DAT4, MX6Q_PAD_NANDF_D3__GPIO_2_3, // pin 41 // MX6Q_PAD_NANDF_D3__USDHC1_DAT7, MX6Q_PAD_NANDF_D2__GPIO_2_2, // pin 42 // MX6Q_PAD_NANDF_D2__USDHC1_DAT6, MX6Q_PAD_NANDF_D1__GPIO_2_1, // pin 43 // MX6Q_PAD_NANDF_D1__USDHC1_DAT5, MX6Q_PAD_GPIO_19__GPIO_4_5, // pin 44 // MX6Q_PAD_GPIO_19__SPDIF_OUT1, // MX6Q_PAD_GPIO_19__CCM_CLKO, // MX6Q_PAD_DISP0_DAT22__GPIO_5_16, // pin 45 MX6Q_PAD_DISP0_DAT22__ECSPI1_MISO, // MX6Q_PAD_DISP0_DAT23__GPIO_5_17, // pin 46 MX6Q_PAD_DISP0_DAT23__ECSPI1_SS0, MX6Q_PAD_EIM_D25__GPIO_3_25, // pin 47 // MX6Q_PAD_EIM_D25__UART3_RXD, MX6Q_PAD_KEY_ROW1__GPIO_4_9, // pin 48 // MX6Q_PAD_KEY_ROW1__UART5_RXD, MX6Q_PAD_KEY_COL1__GPIO_4_8, // pin 49 // MX6Q_PAD_KEY_COL1__UART5_TXD, // MX6Q_PAD_KEY_COL1__USDHC1_VSELECT, MX6Q_PAD_EIM_OE__GPIO_2_25, // pin 50 // MX6Q_PAD_EIM_OE__ECSPI2_MISO, MX6Q_PAD_EIM_CS1__GPIO_2_24, // pin 51 // MX6Q_PAD_EIM_CS1__ECSPI2_MOSI, MX6Q_PAD_EIM_CS0__GPIO_2_23, // pin 52 // MX6Q_PAD_EIM_CS0__ECSPI2_SCLK, // MX6Q_PAD_EIM_D24__GPIO_3_24, // pin 53 MX6Q_PAD_EIM_D24__ECSPI2_SS2, ... MX6Q_PAD_DISP0_DAT18__GPIO_MODE, MX6Q_PAD_DISP0_DAT19__GPIO_MODE, //MX6Q_PAD_DISP0_DAT20__GPIO_MODE, disable GPIO for SPI communication //MX6Q_PAD_DISP0_DAT21__GPIO_MODE, disable GPIO for SPI communication MX6Q_PAD_EIM_A16__GPIO_MODE, MX6Q_PAD_GPIO_18__GPIO_MODE, MX6Q_PAD_NANDF_D0__GPIO_MODE, MX6Q_PAD_NANDF_D1__GPIO_MODE, MX6Q_PAD_NANDF_D2__GPIO_MODE, MX6Q_PAD_NANDF_D3__GPIO_MODE, MX6Q_PAD_GPIO_19__GPIO_MODE, //MX6Q_PAD_DISP0_DAT22__GPIO_MODE, disable GPIO for SPI communication //MX6Q_PAD_DISP0_DAT23__GPIO_MODE, disable GPIO for SPI communication MX6Q_PAD_EIM_D25__GPIO_MODE, MX6Q_PAD_KEY_ROW1__GPIO_MODE, MX6Q_PAD_KEY_COL1__GPIO_MODE, MX6Q_PAD_EIM_OE__GPIO_MODE, MX6Q_PAD_EIM_CS1__GPIO_MODE, MX6Q_PAD_EIM_CS0__GPIO_MODE, //MX6Q_PAD_EIM_D24__GPIO_MODE, disable GPIO for SPI communication ... but now I cannot figure out where to test the SPI communication in the rootfs. Is it one of the /dev/ttymxc<X> ? Which one? Thank you for your help. Cyril
Hi there cyrilf, sorry if this info is redundant, you may have already check it - otherwise, give a look to https://community.freescale.com/thread/302612
Hi, There is no spi_board_info imx6_...[] array in the board-mx6_seco_UDOO.c file : https://github.com/UDOOboard/Kernel_Unico/blob/master/arch/arm/mach-mx6/board-mx6_seco_UDOO.c neither in the header file : https://github.com/UDOOboard/Kernel_Unico/blob/master/arch/arm/mach-mx6/board-mx6qd_seco_UDOO.h
I have enabled in the kernel: Device Drivers ---> SPI support ---> Utilities for Bitbanking SPI masters Device Drivers ---> SPI support ---> Freescale i.MX SPI controllers Device Drivers ---> SPI support ---> User mode SPI device driver support Does anyone have ever used SPI communication with the UDOO? That should be simple to enable. Edit : I found a better explanation here but it is specific to an other board with the right kernel files : http://armbedded.eu/node/318
Thank you for your reply The board-mx6_seco_UDOO.c and board-mx6qd_seco_UDOO.h files haven't been updated since January 2013 on the official UDOO GitHub repository. It's a been a long time so I cannot rely on it for up to time kernel sources. I'd like to compile your sources but do you have a UDOO_deconfig file or should I use the official one? I cannot find a march-mx6/ directory in arch/arm/. Where does the make imx6q-udoo.dtb command find the sources to manage UDOO specific hardware? There is no Freescale i.MX SPI controllers option in Device Drivers ---> SPI support in the kernel config menu. Which driver is related to the UDOO SPI com? Thank you.
Hi, Please use my config file from : http://kowalczyk.ws/imx/kernel/ for kernel 4.0.0 or 4.2. Depend on branch,. I released today kernel 4.2. for kernel 3.14 you have all information on: https://github.com/UDOOboard/linux_kernel ( its a new 3.14 kernel from udoo team)
Hi, Neither your kernel (with config-4.2 file) or the official one (with udoo_quad_defconfig) do compile with the arm-fsl-linux-gnueabi- toolchain. With your kernel I did: Code: cd linux-udoo cp ../config-4.2 .config make -j4 ARCH=arm CROSS_COMPILE=arm-fsl-linux-gnueabi- uImage LOADADDR=0x10008000 modules and I got: Code: {standard input}: Assembler messages: {standard input}:150: Error: garbage following instruction -- `dmb ish' {standard input}:157: Error: garbage following instruction -- `dsb ishst' scripts/Makefile.build:258: recipe for target 'arch/arm/kernel/irq.o' failed make[1]: *** [arch/arm/kernel/irq.o] Error 1 Makefile:949: recipe for target 'arch/arm/kernel' failed make: *** [arch/arm/kernel] Error 2 make: *** Waiting for unfinished jobs.... CC arch/arm/vfp/vfpdouble.o CC init/do_mounts_rd.o CC init/do_mounts_initrd.o CC init/initramfs.o CC init/calibrate.o CC init/init_task.o CC init/version.o LD arch/arm/vfp/vfp.o LD arch/arm/vfp/built-in.o LD init/mounts.o LD init/built-in.o With the official one: Code: cd linux_kernel make ARCH=arm CROSS_COMPILE=arm-fsl-linux-gnueabi- udoo_quad_defconfig make -j4 ARCH=arm CROSS_COMPILE=arm-fsl-linux-gnueabi- uImage and I got: Code: {standard input}: Assembler messages: {standard input}:83: Error: garbage following instruction -- `dmb ish' {standard input}:96: Error: garbage following instruction -- `dmb ish' {standard input}:112: Error: unknown pseudo-op: `.arch_extension' {standard input}:113: Error: bad instruction `pldw [r4,#0]' scripts/Makefile.build:308: recipe for target 'arch/arm/mach-imx/cpuidle-imx6q.o' failed make[1]: *** [arch/arm/mach-imx/cpuidle-imx6q.o] Error 1 make[1]: *** Waiting for unfinished jobs.... Makefile:843: recipe for target 'arch/arm/mach-imx' failed make: *** [arch/arm/mach-imx] Error 2 {standard input}: Assembler messages: {standard input}:216: Error: unknown pseudo-op: `.arch_extension' {standard input}:217: Error: bad instruction `pldw [r3,#0]' {standard input}:794: Error: garbage following instruction -- `dmb ish' {standard input}:805: Error: garbage following instruction -- `dmb ish' {standard input}:860: Error: unknown pseudo-op: `.arch_extension' {standard input}:861: Error: bad instruction `pldw [r3,#0]' {standard input}:919: Error: garbage following instruction -- `dmb ish' {standard input}:930: Error: garbage following instruction -- `dmb ish' {standard input}:1061: Error: unknown pseudo-op: `.arch_extension' {standard input}:1062: Error: bad instruction `pldw [r3,#0]' {standard input}:1172: Error: garbage following instruction -- `dmb ish' {standard input}:1185: Error: garbage following instruction -- `dmb ish' {standard input}:1222: Error: garbage following instruction -- `dmb ish' {standard input}:1235: Error: garbage following instruction -- `dmb ish' {standard input}:1547: Error: unknown pseudo-op: `.arch_extension' {standard input}:1548: Error: bad instruction `pldw [r1,#0]' {standard input}:1616: Error: unknown pseudo-op: `.arch_extension' {standard input}:1617: Error: bad instruction `pldw [r0,#0]' {standard input}:1702: Error: unknown pseudo-op: `.arch_extension' {standard input}:1703: Error: bad instruction `pldw [r3,#0]' {standard input}:1744: Error: unknown pseudo-op: `.arch_extension' {standard input}:1745: Error: bad instruction `pldw [r3,#0]' {standard input}:1798: Error: garbage following instruction -- `dmb ishst' {standard input}:1975: Error: garbage following instruction -- `dmb ish' {standard input}:1988: Error: garbage following instruction -- `dmb ish' {standard input}:2010: Error: garbage following instruction -- `dmb ishst' {standard input}:2072: Error: unknown pseudo-op: `.arch_extension' {standard input}:2073: Error: bad instruction `pldw [r2,#0]' {standard input}:2095: Error: unknown pseudo-op: `.arch_extension' {standard input}:2096: Error: bad instruction `pldw [r3,#0]' {standard input}:2118: Error: garbage following instruction -- `dmb ishst' {standard input}:2130: Error: garbage following instruction -- `dmb ishst' {standard input}:2248: Error: unknown pseudo-op: `.arch_extension' {standard input}:2249: Error: bad instruction `pldw [ip,#0]' {standard input}:2354: Error: unknown pseudo-op: `.arch_extension' {standard input}:2355: Error: bad instruction `pldw [r0,#0]' {standard input}:2376: Error: unknown pseudo-op: `.arch_extension' {standard input}:2377: Error: bad instruction `pldw [r3,#0]' {standard input}:2719: Error: unknown pseudo-op: `.arch_extension' {standard input}:2720: Error: bad instruction `pldw [r3,#0]' {standard input}:2736: Error: unknown pseudo-op: `.arch_extension' {standard input}:2737: Error: bad instruction `pldw [r2,#0]' {standard input}:2759: Error: unknown pseudo-op: `.arch_extension' {standard input}:2760: Error: bad instruction `pldw [r2,#0]' {standard input}:2931: Error: unknown pseudo-op: `.arch_extension' {standard input}:2932: Error: bad instruction `pldw [r3,#0]' {standard input}:2965: Error: garbage following instruction -- `dmb ish' {standard input}:2978: Error: garbage following instruction -- `dmb ish' {standard input}:2991: Error: garbage following instruction -- `dmb ish' scripts/Makefile.build:308: recipe for target 'kernel/fork.o' failed make[1]: *** [kernel/fork.o] Error 1 Makefile:843: recipe for target 'kernel' failed make: *** [kernel] Error 2
Try using Linaro toolchain: https://releases.linaro.org/14.09/c...-arm-linux-gnueabihf-4.9-2014.09_linux.tar.xz More instructions here. The only problem is this: CC drivers/media/platform/mxc/capture/mxc_v4l2_capture.o drivers/media/platform/mxc/capture/mxc_v4l2_capture.c:2514:2: error: unknown field ‘ioctl’ specified in initializer .ioctl = mxc_v4l_ioctl, ^ drivers/media/platform/mxc/capture/mxc_v4l2_capture.c:2514:11: warning: initialization from incompatible pointer type .ioctl = mxc_v4l_ioctl, ^ drivers/media/platform/mxc/capture/mxc_v4l2_capture.c:2514:11: warning: (near initialization for ‘mxc_v4l_fops.write’)
OK thank you! Now it compiles, but the kernel doesn't boot. I use U-Boot but I cannot figure out the value of LOADADDR (before it was not mandatory at compile time). If I try 0x10008000 it blocks at "Starting kernel...". Code: mmc0 is current device reading uImage 4268024 bytes read in 232 ms (17.5 MiB/s) ## Booting kernel from Legacy Image at 12000000 ... Image Name: Linux-3.14.28-ga2000f0 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4267960 Bytes = 4.1 MiB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK Loading Kernel Image ... OK Starting kernel ...
It works perfeclty with that kernel : https://github.com/UDOOboard/Kernel_Unico I downloaded U-Boot on the UDOO website : http://download.udoo.org/files/UDOO_Unico/u-Boot_Quad/u-boot-q.imx I use to configure U-Boot like this: Code: mmc dev 0; mmc rescan; fatload mmc 0:1 ${loadaddr} boot.scr; source At boot, I get this in my console: Code: U-Boot 2013.10-rc3 (Jan 20 2014 - 13:33:34) CPU: Freescale i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: UDOO DRAM: 1 GiB MMC: FSL_SDHC: 0 No panel detected: default to LDB-WVGA Display: LDB-WVGA (800x480) In: serial Out: serial Err: serial Net: using phy at 6 FEC [PRIME] Hit any key to stop autoboot: 0 mmc0 is current device reading uImage 4357260 bytes read in 239 ms (17.4 MiB/s) ## Booting kernel from Legacy Image at 12000000 ... Image Name: Linux-3.0.35 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4357196 Bytes = 4.2 MiB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK Loading Kernel Image ... OK Starting kernel ... ... and the kernel starts normally. With the new kernel, the kernel doesn't start and it stays on "Starting kernel..."
Hi, I pushed to the repo changes for kernel 4.2. Now It should compile. https://github.com/patrykk/linux-udoo/commit/ec528f14001c40b75346ff85fccee0b7a48cc7c1
Hi, Yes your kernel compiles now with the Linaro toolchain. But it doesn't solves my problem to boot the kernel. Here is the output I get: Code: U-Boot 2013.10-rc3 (Jan 20 2014 - 13:33:34) CPU: Freescale i.MX6Q rev1.2 at 792 MHz Reset cause: POR Board: UDOO DRAM: 1 GiB MMC: FSL_SDHC: 0 *** Warning - bad CRC, using default environment No panel detected: default to LDB-WVGA Display: LDB-WVGA (800x480) In: serial Out: serial Err: serial Net: using phy at 6 FEC [PRIME] Hit any key to stop autoboot: 0 UDOO board => mmc dev 0; mmc rescan; fatload mmc 0:1 ${loadaddr} boot.scr; source mmc0 is current device reading boot.scr 551 bytes read in 14 ms (38.1 KiB/s) ## Executing script at 12000000 Saving Environment to MMC... Writing to MMC(0)... done UDOO board => boot mmc0 is current device reading uImage 4367032 bytes read in 239 ms (17.4 MiB/s) ## Booting kernel from Legacy Image at 12000000 ... Image Name: Linux-4.2.0-gec528f1 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4366968 Bytes = 4.2 MiB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK Loading Kernel Image ... OK Starting kernel ...
my udoo configuration: please check options: fdt_addr=0x12000000 and loadaddr=10800000 => baudrate=115200 boot_fdt=try bootargs=console=ttymxc1,115200 root=/dev/sda1 rw mem=1024M video=mxcfb1:dev=ldb,LDB-WVGA,if=RGB666,bpp=32 video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 panic=10 bootcmd=mmc dev ${mmcdev};if mmc rescan; then echo SD/MMC found on device ${mmcdev};if run loadbootenv; then run importbootenv;fi;echo Checking if uenvcmd is set ...;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;echo Running default loaduimage ...;if run loaduimage; then run mmcbootm;fi;echo Running defau; bootdelay=15 bootscript=echo Running bootscript from mmc ...; source console=ttymxc1 debug=user_debug=7 ethact=FEC ethaddr=00:c0:08:88:19:e1 ethprime=FEC fdt_addr=0x12000000 fdt_file=/boot/imx6q-udoo.dtb-4.2 fdt_high=0xffffffff filesize=863b image=zImage importbootenv=echo Importing environment from mmc (uEnv.txt)...; env import -t $loadaddr $filesize init=init=/usr/lib/systemd/systemd initrd_high=0xffffffff ip_dyn=yes loadaddr=10800000 loadbootenv=sata init; load sata ${satadev}:${satapart} ${loadaddr} ${uenv} loadbootscript=fatload sata ${mmcdev}:${mmcpart} ${loadaddr} ${script}; loadfdt=load sata ${satadev}:${satapart} ${fdt_addr} ${fdt_file} loaduimage=load sata ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}; load sata ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file} loadzimage=load sata ${mmcdev}:${mmcpart} ${loadaddr} ${zimage} memory=mem=1024M mmcargs=setenv bootargs console=${console},${baudrate} ${optargs} root=${mmcroot} ${memory} video=${video7} video=${video} ${panic} mmcbootm=echo Booting from mmc ...; run mmcargs; bootm ${loadaddr} - ${fdt_addr}; mmcbootz=echo Booting from mmc ...; run mmcargs; bootz ${loadaddr} - ${fdt_addr}; mmcdev=0 mmcpart=1 mmcroot=/dev/sda1 rw netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp netboot=echo Booting from net ...; run netargs; if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} ${image}; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if ${get_cmd} ${fdt_addr} ${fdt_file}; then bootz ${loadaddr} - ${fdt_addr}; else if test ${boot_fdt} = try; then boot; panic=panic=10 satadev=0 satapart=1 script=boot.scr splashpos=m,m stderr=serial stdin=serial stdout=serial uenv=/boot/uEnv.txt uimage=/boot/uImage-4.2 update_sd_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if mmc dev ${mmcdev}; then if ${get_cmd} ${update_sd_firmware_filename}; then setexpr fw_sz ${filesize} / 0x200; setexpr fw_sz ${fw_sz} + 1; mmc write ${loadaddr} 0x2 ${fw_sz}; fi; fi update_sd_firmware_filename=u-boot.imx video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video7=mxcfb1:dev=ldb,LDB-WVGA,if=RGB666,bpp=32 zimage=/boot/zImage-disable Environment size: 2979/8188 bytes
Here is my output: Code: UDOO board => env print baudrate=115200 boot_fdt=try bootcmd=mmc dev ${mmcdev};if mmc rescan; then if run loaduimage; then run mmcboot;else run netboot;fi;else run netboot; fi bootdelay=5 bootscript=echo Running bootscript from mmc ...; source console=ttymxc1 ethact=FEC ethaddr=00:c0:08:88:9e:cc ethprime=FEC fdt_addr=0x11000000 fdt_file=imx6q-udoo.dtb fdt_high=0xffffffff filesize=227 initrd_high=0xffffffff ip_dyn=yes loadaddr=0x12000000 loadbootscript=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script}; loadfdt=ext2load mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file} loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage} mmcargs=setenv bootargs console=${console},${baudrate} root=${mmcroot} ${hdmi_patch} fbmem=24M video=mxcfb0:dev=ldb,LDB-WVGA,if=RGB666,bpp=32 mmcboot=run mmcargs; bootm ${loadaddr} mmcdev=0 mmcpart=1 mmcroot=/dev/mmcblk0p2 rootwait rw netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs ${hdmi_patch} ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp netboot=echo Booting from net ...; run netargs; if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; ${get_cmd} ${uimage}; if test ${boot_fdt} = yes || test ${boot_fdt} = try; then if ${get_cmd} ${fdt_addr} ${fdt_file}; then bootm ${loadaddr} - ${fdt_addr}; else if test ${boot_fdt} = try; then bootm; else echo WARN: Cannot load the DT; fi; fi; else bootm; fi; script=boot.scr splashpos=m,m uimage=uImage update_sd_firmware=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftp; fi; if mmc dev ${mmcdev}; then if ${get_cmd} ${update_sd_firmware_filename}; then setexpr fw_sz ${filesize} / 0x200; setexpr fw_sz ${fw_sz} + 1; mmc write ${loadaddr} 0x2 ${fw_sz}; fi; fi update_sd_firmware_filename=u-boot.imx Environment size: 1805/8188 bytes
Here is what I did : Code: UDOO board => setenv fdt_addr 0x12000000 UDOO board => setenv loadaddr 0x10800000 UDOO board => boot mmc0 is current device reading uImage 4367032 bytes read in 239 ms (17.4 MiB/s) ## Booting kernel from Legacy Image at 10800000 ... Image Name: Linux-4.2.0-gec528f1 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 4366968 Bytes = 4.2 MiB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK Loading Kernel Image ... OK Starting kernel ... but it stil doesnt boot
I think you don't load and use device tree file? Code: run loadfdt run loaduimage bootm ${loadaddr} - ${fdt_addr}; You have to see something like this Code: ## Booting kernel from Legacy Image at 10800000 ... Image Name: Linux-3.10.52 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 6783864 Bytes = 6.5 MiB Load Address: 10008000 Entry Point: 10008000 Verifying Checksum ... OK ## Flattened Device Tree blob at 12000000 Booting using the fdt blob at 0x12000000 Loading Kernel Image ... OK Using Device Tree in place at 12000000, end 1200c9a2
