This series adds several new uclasses. Some of these have been discussed for a while. All are fairly simple and just provide enough functionality for existing use cases. The following are included in this series:
- Clocks - setting and getting PLL and peripheral clocks - Pinctrl - adjusting pin multiplexing settings - Reset - reseting the board or SoC - RAM - setting up RAM controllers and detecting the available RAM - MMC - MMC controllers (using the existing block device framework) - LEDs - turning LEDs on and off, with only a GPIO driver so far
Trivial support is also added for regmap and syscon controllers, modelled on how the kernel does this.
This builds on the SPL device tree support which was recently added.
One problem with device tree is that U-Boot has no way of dropping features it does not need or use. For SPL this problem needs to be solved and this series uses a new 'fdtgrep' tool for this. The 45KB Firefly device tree reduces to a 6KB bytes when unused material is removed. SDRAM timings are also in the device tree.
This series includes some changes aimed at reduce code size in SPL, including: - dropping alias sequence support (the aliases node) since many boards just use a single UART in SPL - adding a smaller panic() function that does not support printf()-format strings - removing device unbind code which will never be used in SPL
Changes in v3: - Use case-insensitve compare for image params (fixes build break with m53evk) - Fix indentation in function comment - Convert hex number to upper case to keep bc happy - Split this series apart from the Rockchip series
Changes in v2: - Add new patch to remove unused strings from a device tree - Add new patch with fdt_first/next_region() functions - Tidy up commit message a little - Add new patch with fdtgrep tool - Add new patch to reduce SPL device tree size with fdtgrep
Simon Glass (54): Add a dhrystone benchmark command sandbox: Enable dhry command mkimage: Display a better list of available image types fdt: Add a function to remove unused strings from a device tree fdt: Add fdt_first/next_region() functions fdt: Add fdtgrep tool dm: Reduce SPL device tree size dm: arm: Put driver model I2C drivers before legacy ones Add a way of checking the position of a structure member debug_uart: Remove use of asmlinkage dm: Allow debug UART to support an early console sandbox: Drop special-case sandbox console code dm: Move the tree/uclass dump code into its own file dm: core: Use debug() instead of printf() for failures dm: core: Add a function to find any device from device tree dm: core: Correct device_get_child_by_of_offset() parameter dm: gpio: Allow GPIO uclass to be used in SPL dm: gpio: Add dm_gpio_lookup_name() to look up a GPIO name dm: gpio: Add dm_gpio_request() to manually request a GPIO dm: Add support for register maps (regmap) dm: Add support for generic system controllers (syscon) dm: Correct the missing method check in cpu_get_info() dm: Add support for LEDs dm: led: Add a driver for GPIO-controlled LEDs spl: Add debugging info for spl_mmc boot dm: mmc: Add an MMC uclass mmc: Avoid using printf() for errors mmc: Add debug() output on read errors dm: mmc: Allow driver model to be used for MMC in SPL mmc: Add structure comments for dwmmc mmc: Support bypass mode with the get_mmc_clk() method mmc: Calculate dwmmc FIFO threshold size if not provided dm: Add basic support for pin multiplexing (pinctrl) dm: power: Avoid case-insensitve match for child names dm: power: Add regulator flags to centralise auto-set logic dm: pmic: Split output from function dm: power: Add a function to set up all regulators dm: power: Use debug() for errors in regulator uclass dm: pmic: Add functions to adjust PMIC registers dm: power: Allow use of regulators in SPL Drop CONFIG_ERRNO_STR from SPL dm: Add support for RAM drivers dm: spi: Make local functions static ns16550: Improve debug UART so it can work with 32-bit access Add rivest cipher 4 (rc4) implementation lib: Add function to extract a number from the end of a string fdt: Provide debug info when a device tree cannot be found dm: spl: Allow device tree/driver model in board_init_f() spl: Add a debug string before the jump to U-Boot mkimage: Set up a file size parameter and keep it updated dm: Add a system reset uclass zynq: Rename struct clk_ops to zynq_clk_ops dm: Add a clock uclass power: pmic: Use trailing_strtol() instead of a local function
Makefile | 2 +- arch/arm/cpu/u-boot-spl.lds | 12 +- arch/arm/mach-zynq/clk.c | 6 +- common/console.c | 25 +- common/image.c | 58 +- common/spl/spl.c | 36 +- common/spl/spl_mmc.c | 26 +- configs/sandbox_defconfig | 1 + doc/device-tree-bindings/leds/common.txt | 23 + doc/device-tree-bindings/leds/leds-gpio.txt | 52 ++ drivers/Kconfig | 8 + drivers/Makefile | 4 + drivers/clk/Kconfig | 19 + drivers/clk/Makefile | 8 + drivers/clk/clk-uclass.c | 58 ++ drivers/core/Makefile | 3 + drivers/core/device.c | 29 +- drivers/core/dump.c | 96 +++ drivers/core/lists.c | 6 +- drivers/core/regmap.c | 86 ++ drivers/core/syscon-uclass.c | 73 ++ drivers/cpu/cpu-uclass.c | 2 +- drivers/gpio/Makefile | 4 - drivers/gpio/gpio-uclass.c | 36 +- drivers/led/Kconfig | 26 + drivers/led/Makefile | 9 + drivers/led/led-uclass.c | 48 ++ drivers/led/led_gpio.c | 101 +++ drivers/misc/Kconfig | 9 + drivers/misc/Makefile | 1 + drivers/misc/reset-uclass.c | 62 ++ drivers/mmc/Kconfig | 10 + drivers/mmc/Makefile | 2 + drivers/mmc/dw_mmc.c | 33 +- drivers/mmc/exynos_dw_mmc.c | 2 +- drivers/mmc/mmc-uclass.c | 34 + drivers/mmc/mmc.c | 10 +- drivers/pinctrl/Kconfig | 19 + drivers/pinctrl/Makefile | 8 + drivers/pinctrl/pinctrl-uclass.c | 51 ++ drivers/power/pmic/pmic-uclass.c | 57 +- drivers/power/regulator/regulator-uclass.c | 134 +-- drivers/ram/Kconfig | 18 + drivers/ram/Makefile | 7 + drivers/ram/ram-uclass.c | 28 + drivers/serial/ns16550.c | 36 +- drivers/spi/spi-uclass.c | 8 +- dts/Kconfig | 12 + include/asm-generic/global_data.h | 1 + include/asm-generic/gpio.h | 25 + include/clk.h | 80 ++ include/common.h | 11 + include/debug_uart.h | 22 +- include/dm/device.h | 16 +- include/dm/uclass-id.h | 7 + include/dm/util.h | 6 + include/dwmmc.h | 34 +- include/image.h | 11 + include/led.h | 51 ++ include/libfdt.h | 256 +++++- include/mmc.h | 22 + include/pinctrl.h | 74 ++ include/power/pmic.h | 34 + include/power/regulator.h | 53 +- include/power/sandbox_pmic.h | 4 +- include/ram.h | 38 + include/rc4.h | 21 + include/regmap.h | 72 ++ include/reset.h | 62 ++ include/spl.h | 12 + include/syscon.h | 56 ++ include/vsprintf.h | 26 + lib/Kconfig | 2 + lib/Makefile | 5 +- lib/dhry/Kconfig | 7 + lib/dhry/Makefile | 7 + lib/dhry/cmd_dhry.c | 34 + lib/dhry/dhry.h | 442 ++++++++++ lib/dhry/dhry_1.c | 421 +++++++++ lib/dhry/dhry_2.c | 217 +++++ lib/fdtdec.c | 21 +- lib/libfdt/Makefile | 2 +- lib/libfdt/fdt_region.c | 492 +++++++++++ lib/libfdt/fdt_rw.c | 32 + lib/rc4.c | 49 ++ lib/vsprintf.c | 19 + scripts/Makefile.spl | 33 + test/dm/cmd_dm.c | 82 +- test/dm/regulator.c | 2 +- tools/Makefile | 6 +- tools/fdtgrep.c | 1234 +++++++++++++++++++++++++++ tools/imagetool.h | 1 + tools/mkimage.c | 77 +- 93 files changed, 5259 insertions(+), 318 deletions(-) create mode 100644 doc/device-tree-bindings/leds/common.txt create mode 100644 doc/device-tree-bindings/leds/leds-gpio.txt create mode 100644 drivers/clk/Kconfig create mode 100644 drivers/clk/Makefile create mode 100644 drivers/clk/clk-uclass.c create mode 100644 drivers/core/dump.c create mode 100644 drivers/core/regmap.c create mode 100644 drivers/core/syscon-uclass.c create mode 100644 drivers/led/Kconfig create mode 100644 drivers/led/Makefile create mode 100644 drivers/led/led-uclass.c create mode 100644 drivers/led/led_gpio.c create mode 100644 drivers/misc/reset-uclass.c create mode 100644 drivers/mmc/mmc-uclass.c create mode 100644 drivers/pinctrl/Kconfig create mode 100644 drivers/pinctrl/Makefile create mode 100644 drivers/pinctrl/pinctrl-uclass.c create mode 100644 drivers/ram/Kconfig create mode 100644 drivers/ram/Makefile create mode 100644 drivers/ram/ram-uclass.c create mode 100644 include/led.h create mode 100644 include/pinctrl.h create mode 100644 include/ram.h create mode 100644 include/rc4.h create mode 100644 include/regmap.h create mode 100644 include/reset.h create mode 100644 include/syscon.h create mode 100644 lib/dhry/Kconfig create mode 100644 lib/dhry/Makefile create mode 100644 lib/dhry/cmd_dhry.c create mode 100644 lib/dhry/dhry.h create mode 100644 lib/dhry/dhry_1.c create mode 100644 lib/dhry/dhry_2.c create mode 100644 lib/libfdt/fdt_region.c create mode 100644 lib/rc4.c create mode 100644 tools/fdtgrep.c