HI Lin, On 13 December 2015 at 23:26, hl <h...@rock-chips.com> wrote: > Hi Simon. > > Thank you for updating this series patch, i have verified it in > evb-rk3036 board, > it worked. >
Great, thanks! > > > On 14/12/15 12:36, Simon Glass wrote: >> >> The RK3036 has only 8KB of RAM available for SPL. At present it uses its >> own >> debug UART code. >> >> By allowing the ns16550 driver to provide a debug UART without providing a >> full serial driver, we can enable a UART with a very small overhead. This >> requires addition Kconfig options. The debug UART supports printhex8(), >> printascii() and a few other functions. >> >> The root driver and uclass are pulled in by this series, but their size is >> very small. It would possible to drop these by disabling CONFIG_DM_SERIAL. >> However the ns16550 driver makes this hard, due to it supporting operation >> without driver model, and operating differently in this case. >> >> >> Simon Glass (3): >> dm: serial: Allow the UART driver to be dropped from the image >> dm: ns16550: Allow the driver to be omitted if requested >> rockchip: Use the debug UART on rk3036 >> >> arch/arm/mach-rockchip/Makefile | 1 - >> arch/arm/mach-rockchip/rk3036-board-spl.c | 9 ++++- >> arch/arm/mach-rockchip/rk_early_print.c | 63 >> ------------------------------- >> configs/evb-rk3036_defconfig | 6 +++ >> drivers/serial/Kconfig | 20 ++++++++++ >> drivers/serial/ns16550.c | 2 + >> drivers/serial/serial-uclass.c | 2 + >> include/configs/rk3036_common.h | 2 + >> 8 files changed, 40 insertions(+), 65 deletions(-) >> delete mode 100644 arch/arm/mach-rockchip/rk_early_print.c >> > > -- > Lin Huang > > Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
