On Mon Apr 28, 2014 at 18:51:13 +0900, Taeung wrote:
I'm trying to build L4 Linux with added option of MMC device driver.
When I've tried to compile L4 Linux , I've failed it with error log such as.. ============== drivers/built-in.o: In function `sdhci_pltfm_clk_get_max_clock': /home/taeung/test/source/l4linux/drivers/mmc/host/sdhci-pltfm.c:43: undefined reference to `clk_get_rate' make[1]: *** [vmlinux] Error 1 make: *** [sub-make] Error 2 ==============
After I saw the log , I've guessed the cause is that 'drivers/clk/clk.c' was not built. So, I must enable 'CONFIG_COMMON_CLK' , to build 'drivers/clk/clk.c'
How to enable 'CONFIG_COMMON_CLK' ?
You need to add 'select COMMON_CLK' to some platform config block (such as L4_PLATFORM_GENERIC).
Adam