bellad Posted September 8, 2015 Posted September 8, 2015 hello, i want use ds2482-100 i2c-> 1wire maxim , but i not see with i2cdetect -y 0 in script.bin : [twi_para] twi_port = 0 twi_scl = port:PB00<2><default><default><default> twi_sda = port:PB01<2><default><default><default> -- [twi0_para] twi0_used = 1 twi0_scl = port:PB00<2><default><default><default> twi0_sda = port:PB01<2><default><default><default> [twi1_para] twi1_used = 0 twi1_scl = port:PB18<2><default><default><default> twi1_sda = port:PB19<2><default><default><default> [twi2_para] twi2_used = 0 twi2_scl = port:PB20<2><default><default><default> twi2_sda = port:PB21<2><default><default><default> i have plug PB00 and PB01 Linux lime-a10 4.1.6-sunxi #22 SMP Tue Aug 25 17:54:51 CEST 2015 armv7l GNU/Linux modprobe ?? what ?? thank you for your help
Igor Posted September 8, 2015 Posted September 8, 2015 script.bin is configuration for kernel 3.4 if present. you will need to mess with DTB: sun4i-a10-olinuxino-lime.dtb
bellad Posted September 8, 2015 Author Posted September 8, 2015 thank can you say more the file script.bin is different from sun4i-a10-olinuxino-lime.dtb ? i not understand
Igor Posted September 8, 2015 Posted September 8, 2015 script.bin (script.fex) is Allwinner way of structure for describing hardware, DTB (DTS for source) is for (probably) all others. You need to convert sun4i-a10-olinuxino-lime.dtb to source, edit sun4i-a10-olinuxino-lime.dts and back. http://events.linuxfoundation.org/sites/events/files/slides/petazzoni-device-tree-dummies.pdf http://elinux.org/Device_Tree
bellad Posted September 8, 2015 Author Posted September 8, 2015 in sun4i-a10-olinuxino-lime.dts i2c0@0 { allwinner,pins = "PB0", "PB1"; allwinner,function = "i2c0"; allwinner,drive = <0x0>; allwinner,pull = <0x0>; linux,phandle = <0x2a>; phandle = <0x2a>; }; i2c@01c2ac00 { compatible = "allwinner,sun4i-a10-i2c"; reg = <0x1c2ac00 0x400>; interrupts = <0x7>; clocks = <0x28 0x0>; status = "okay"; #address-cells = <0x1>; #size-cells = <0x0>; pinctrl-names = "default"; pinctrl-0 = <0x2a>; it's ok ?? setenv bootargs console=tty1 root=/dev/sda1 rootwait rootfstype=ext4 sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_no_mali_mem_reserve sunxi_fb_mem_reserve=16 hdmi.audio=EDID:0 disp.screen0_output_mode=1920x1080p60 panic=10 consoleblank=0 enforcing=0 loglevel=1 #-------------------------------------------------------------------------------------------------------------------------------- # Boot loader script to boot with different boot methods for old and new kernel #-------------------------------------------------------------------------------------------------------------------------------- if ext4load mmc 0 0x00000000 /boot/.next || fatload mmc 0 0x00000000 .next then # sunxi mainline kernel #-------------------------------------------------------------------------------------------------------------------------------- ext4load mmc 0 0x49000000 /boot/dtb/${fdtfile} || fatload mmc 0 0x49000000 /dtb/${fdtfile} ext4load mmc 0 0x46000000 /boot/zImage || fatload mmc 0 0x46000000 zImage env set fdt_high ffffffff bootz 0x46000000 - 0x49000000 #-------------------------------------------------------------------------------------------------------------------------------- else # sunxi android kernel #-------------------------------------------------------------------------------------------------------------------------------- ext4load mmc 0 0x43000000 /boot/script.bin || fatload mmc 0 0x43000000 script.bin ext4load mmc 0 0x48000000 /boot/zImage || fatload mmc 0 0x48000000 zImage bootz 0x48000000 #-------------------------------------------------------------------------------------------------------------------------------- fi # Recompile with: # mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr i must modify the boot.scr ?
bellad Posted September 8, 2015 Author Posted September 8, 2015 oh , sorry , it's my fault , bad plug my i2c ic ds2482-100 but , thank you so much for " script.bin (script.fex) is Allwinner way of structure for describing hardware, DTB (DTS for source) is for (probably) all others. " and the link's I learned a lot 1
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