On 03/02/2015 06:22 AM, Arnd Bergmann wrote: > On Saturday 28 February 2015 09:47:01 Chanwoo Choi wrote: >> "earlycon=exynos4210,0x14C20000" is correct bootparam. You can check >> it on Documentation/kernel-parameters.txt as following. >> >> exynos4210,<addr> >> Use early console provided by serial driver available >> on Samsung SoCs, requires selecting proper type and >> a correct base address of the selected UART port. The >> serial port must already be setup and configured. >> Options are not yet supported. >> >> > > But it's crazy to do this when you have a DT. Please fix the existing > devicetree files that use this to just list 'earlycon'. > > The syntax above only makes sense for classic board files that we > do not support for exynos any more. Following earlycon patch for exynos soc was merged in Linux 4.0-rc1. - commit-id: b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5 (serial: samsung: Add support for early console) Almost Exynos SoC use the same UART IP of Exynos4210. If you mean that "earlycon=exynos4210" naming will be changed to "earlycon=exynos", we have to modify the drivers/tty/serial/samsung.c. Thanks, Chanwoo Choi -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
