This moves an entire board to use a live device tree as an example of the
impact.
Nyan-big was chosen because I can easily and boot U-Boot without any
media swapping, etc.
Total code size impact on this board is approximately 9KB on U-Boot and
64 bytes on SPL:
27: dm: tegra: nyan-big: Move to livetree
arm: (for 1/1 boards) all +9264.0 bss -16.0 data +44.0 rodata +92.0
spl/u-boot-spl:all +326.0 spl/u-boot-spl:rodata +262.0
spl/u-boot-spl:text +64.0 text +9144.0
Tegra does not use Thumb2, which would likely reduce the code size by about
25%, indicating a code-size impact of perhaps 7KB.
I have not yet collected reliable detailed timing information. I will do
that with the next version of this series, after comments are received.
I expect that building the live tree will take a little time, and that
using it will be very slightly faster.
The use of livetree is controlled by a the CONFIG_OF_LIVE option. When
enabled, U-Boot builds a livetree immediately after relocation and uses
it from then on.
This series is available at u-boot-dm/livet-working
(note that some work remains for apalis-tk1, jetson-tk1, cei-tk1-som)
Simon Glass (26):
dm: video: Sync display on backspace
dm: video: Update pwm_backlight to support livetree
video: simple-panel: Add a little more debugging
tegra: Fix up include file ordering
tegra: spl: Enable debug UART
tegra: nyan: Add a PMC syscon driver
dm: tegra: Convert USB setup to livetree
dm: tegra: Convert clock_decode_periph_id() to support livetree
dm: video: tegra124: Convert to livetree
tegra: dts: Move stdout-path to /chosen
tegra: Don't set up the UART clocks again in U-Boot
dm: tegra: gpio: Convert to support livetree
dm: tegra: usb: Convert to livetree
dm: tegra: spi: Convert to livetree
dm: tegra: i2c: Convert to livetree
dm: tegra: pwm: Convert to livetree
dm: tegra: mmc: Convert to livetree
power: Add a regulator driver for the as3722 PMIC
power: Add a GPIO driver for the as3722 PMIC
dm: power: Convert as3722 to driver model
dm: serial: ns16550: Convert to livetree
dm: serial: Separate out the core serial-device finding code
dm: serial: Add livetree support
tegra: Show a debug message if the LCD PMIC fails to start
fdtdec: Drop old compatible values
dm: tegra: nyan-big: Move to livetree
arch/arm/dts/tegra124-nyan-big.dts | 5 +-
arch/arm/include/asm/arch-tegra/clock.h | 2 +-
arch/arm/include/asm/arch-tegra/tegra.h | 5 +
arch/arm/include/asm/arch-tegra/xusb-padctl.h | 2 +-
arch/arm/mach-tegra/board.c | 2 +
arch/arm/mach-tegra/board2.c | 34 ++-
arch/arm/mach-tegra/clock.c | 9 +-
arch/arm/mach-tegra/spl.c | 4 +
arch/arm/mach-tegra/tegra124/Makefile | 1 +
arch/arm/mach-tegra/tegra124/pmc.c | 19 ++
arch/arm/mach-tegra/tegra124/xusb-padctl.c | 36 +++-
arch/arm/mach-tegra/tegra210/xusb-padctl.c | 40 +++-
arch/arm/mach-tegra/xusb-padctl-common.c | 84 ++++----
arch/arm/mach-tegra/xusb-padctl-common.h | 11 +-
arch/arm/mach-tegra/xusb-padctl-dummy.c | 2 +-
board/nvidia/nyan-big/nyan-big.c | 22 +-
configs/nyan-big_defconfig | 4 +
drivers/gpio/tegra_gpio.c | 10 +-
drivers/i2c/tegra_i2c.c | 6 +-
drivers/mmc/tegra_mmc.c | 17 +-
drivers/power/pmic/Makefile | 2 +-
drivers/power/pmic/as3722.c | 292 +++++++++-----------------
drivers/power/pmic/as3722_gpio.c | 120 +++++++++++
drivers/power/regulator/Kconfig | 9 +
drivers/power/regulator/Makefile | 1 +
drivers/power/regulator/as3722_regulator.c | 149 +++++++++++++
drivers/pwm/tegra_pwm.c | 2 +-
drivers/serial/ns16550.c | 15 +-
drivers/serial/serial-uclass.c | 92 ++++----
drivers/spi/tegra114_spi.c | 15 +-
drivers/spi/tegra20_sflash.c | 2 +-
drivers/spi/tegra20_slink.c | 2 +-
drivers/spi/tegra210_qspi.c | 2 +-
drivers/usb/host/ehci-tegra.c | 36 ++--
drivers/video/pwm_backlight.c | 23 +-
drivers/video/simple_panel.c | 2 +
drivers/video/tegra124/display.c | 8 +-
drivers/video/tegra124/dp.c | 3 +-
drivers/video/tegra124/sor.c | 25 +--
drivers/video/vidconsole-uclass.c | 1 +
include/fdtdec.h | 6 -
include/power/as3722.h | 27 ++-
lib/fdtdec.c | 6 -
43 files changed, 699 insertions(+), 456 deletions(-)
create mode 100644 arch/arm/mach-tegra/tegra124/pmc.c
create mode 100644 drivers/power/pmic/as3722_gpio.c
create mode 100644 drivers/power/regulator/as3722_regulator.c
--
2.13.0.303.g4ebf302169-goog
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