On 26 January 2015 at 18:27, Simon Glass <[email protected]> wrote: > This came up in a discussion on the mailing list here: > > https://patchwork.ozlabs.org/patch/384613/ > > My concerns at the time were: > - it doesn't need to be written in assembler > - it doesn't need to be ARM-specific > > This patch provides a possible alternative. It works by allowing any serial > driver to export one init function and provide a putc() function. These > can be used to output debug data before the real serial driver is available. > > This implementation does not depend on driver model, and it is possible for > it to operate without a stack on some architectures (e.g. PowerPC, ARM). It > provides the same features as the ARM-specific debug.S but with more UART > and architecture support. > > Signed-off-by: Simon Glass <[email protected]> > --- > > Changes in v2: > - Add asmlinkage to exported functions > > drivers/serial/Kconfig | 46 ++++++++++++++++ > include/debug_uart.h | 139 > +++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 185 insertions(+) > create mode 100644 include/debug_uart.h >
As discussed let's bring this in. Applied to u-boot-dm. (Removed these Kconfig options from minnowmax_defconfig as the same time to avoid a build error. We can always enable it later) _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
