Hi Simon.
Thank you for updating this series patch, i have verified it in
evb-rk3036 board,
it worked.
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
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