topic Re: Build kernel from https://github.com/Freescale/linux-mainline patches-3.12 in i.MX Processors

Build kernel from https://github.com/Freescale/linux-mainline patches-3.12

sp1 — Thu, 19 Dec 2013 12:10:16 GMT

Hi.

I built the kernel from https://github.com/Freescale/linux-mainline patches-3.12. First a couple of questions about building:

1. Which _defconfig shall I use (as basis) for a i.MX6 quad board (it is actually Boundary Devices nitrogen, but we are developing our own card using i.MX 6 SOlo so I need to start "from scratch") I tried imx_v6_v7 which compiles, but ...

2. Why does 'make uImage' complain abount LOADADDR. It is easy to fix, but why shouldn't a published _defconfig actually compile to something that works?

3. Also which _defconfig for a i.MX6 Solo?

When booting the kernel I get unaligned access immediately. That is; some information about the kernel is shown by uboot, but the kernel does not start. I get a message to read the arm-unaligned-access.txt file. Again. Why doesn't a _defconfig for imx-something work.

Could someone point me to some answers here?

Sp1

Re: Build kernel from https://github.com/Freescale/linux-mainline patches-3.12

fabio_estevam — Thu, 19 Dec 2013 12:31:17 GMT

1. You should use 'make imx_v6_v7_defconfig' for all mx6

2. You need to use make uImage LOADADDR=0x10008000 for mx6q

3. imx_v6_v7_defconfig

4. Make sure you also provide the dtb file when booting a 3.12 kernel.

Regards,

Fabio Estevam

Re: Build kernel from https://github.com/Freescale/linux-mainline patches-3.12

sp1 — Thu, 19 Dec 2013 13:59:14 GMT

Hi Fabio.

Thanks. Fast answer :-)

I boot from MMC, but I'm not sure the dtb file are on it. I'll experiment some more.

Sp1