On Friday, August 26, 2011 00:36:15 Graeme Russ wrote:
On Fri, Aug 26, 2011 at 1:32 PM, Simon Glass wrote:
- When I create a driver, like the serial test driver, should that be
serial_test.c, test_serial.c, sandbox_serial or something else?
I guess you'll have /drivers/serial/sandbox.c, /drivers/net/sandbox.c etc.
/include/configs/sandbox.h will need to include defaults for how these devices are configured. For example, you may want to have the sandbox serial go to /dev/ttyS0 or /dev/ttyS1
since we get a main() entry point, we can make these into runtime flags
Make sure that printf() goes through U-Boot printf() not the host's libc
u-boot already takes care of this by running the linker directly. it is the compiler driver (i.e. `gcc`) that adds the implicit -lc and friends.
And have you dealt with putc() and getc() hooking so that the U-Boot stdio can go to either the hosts stdio or a serial port?
that would be the problem of the sandbox serial driver, and i dont think it'd be that hard. simply use read/write syscalls directly :). -mike