[U-Boot] [PATCH 00/12] arm: aspeed: Basic support for Aspeed AST2500 part and eval board

[Maxim Sloyko]

This series adds minimal support for AST2500 part and eval board,
enough to boot EVB into prompt. It contains WDT, Timer, Sysreset,
Clock (very basic) and SDRAM MC drivers, all written from scratch,
using AST2500 datasheet. Aspeed's SDK was used only for reference.
Given very limited documentation provided by Aspeed, some parts of SDRAM
init sequence were basically rewritten to do the same thing that is done
in Aspeed SDK, without real understanding of what is going on.

The file layout closely follows the example of rk3288 chip and firefly-rk3288
board.

For the first round of reviews I'm mostly looking for a nod to add
mach-aspeed and arch-aspeed directories, as well as for feedback
on naming, file locations and overall approach.


Maxim Sloyko (12):
  aspeed: Add mach-aspeed directory and basic Kconfig
  aspeed: Add support for Watchdot Timer
  aspeed: Add Timer Support
  aspeed: Add sysreset driver
  aspeed/ast2500: Device Tree and bindings for some of the clocks
  aspeed/ast2500: Add Clock Driver
  aspeed/ast2500: Helper function to get access to SCU
  aspeed/ast2500: Add SDRAM MC driver
  aspeed/ast2500: Common board init functions for ast2500 based boards
  aspeed: Common configuration parameters for aspeed boards
  aspeed: Device Tree for ast2500 Eval Board
  aspeed: Configuration for ast2500 eval board

 arch/arm/Kconfig                                 |   7 +
 arch/arm/Makefile                                |   1 +
 arch/arm/dts/Makefile                            |   2 +
 arch/arm/dts/ast2500-evb.dts                     |  23 ++
 arch/arm/dts/ast2500.dtsi                        | 423 ++++++++++++++++++++++
 arch/arm/include/asm/arch-aspeed/scu_ast2500.h   | 108 ++++++
 arch/arm/include/asm/arch-aspeed/sdram_ast2500.h | 133 +++++++
 arch/arm/include/asm/arch-aspeed/timer.h         |  54 +++
 arch/arm/include/asm/arch-aspeed/wdt.h           |  89 +++++
 arch/arm/mach-aspeed/Kconfig                     |  17 +
 arch/arm/mach-aspeed/Makefile                    |   8 +
 arch/arm/mach-aspeed/ast2500-board.c             |  74 ++++
 arch/arm/mach-aspeed/ast2500/Kconfig             |  13 +
 arch/arm/mach-aspeed/ast2500/Makefile            |   1 +
 arch/arm/mach-aspeed/ast2500/clk_ast2500.c       |  31 ++
 arch/arm/mach-aspeed/ast2500/sdram_ast2500.c     | 443 +++++++++++++++++++++++
 arch/arm/mach-aspeed/ast_wdt.c                   |  44 +++
 board/aspeed/evb_ast2500/Kconfig                 |  12 +
 board/aspeed/evb_ast2500/Makefile                |   1 +
 board/aspeed/evb_ast2500/evb_ast2500.c           |   1 +
 configs/evb-ast2500_defconfig                    |  21 ++
 drivers/clk/Makefile                             |   2 +
 drivers/clk/aspeed/Makefile                      |   7 +
 drivers/clk/aspeed/clk_ast2500.c                 | 255 +++++++++++++
 drivers/sysreset/Makefile                        |   1 +
 drivers/sysreset/sysreset_ast.c                  |  55 +++
 drivers/timer/Kconfig                            |   7 +
 drivers/timer/Makefile                           |   1 +
 drivers/timer/ast_timer.c                        |  96 +++++
 include/configs/aspeed-common.h                  |  84 +++++
 include/configs/evb_ast2500.h                    |  30 ++
 include/dt-bindings/clock/ast2500-scu.h          |  29 ++
 32 files changed, 2073 insertions(+)
 create mode 100644 arch/arm/dts/ast2500-evb.dts
 create mode 100644 arch/arm/dts/ast2500.dtsi
 create mode 100644 arch/arm/include/asm/arch-aspeed/scu_ast2500.h
 create mode 100644 arch/arm/include/asm/arch-aspeed/sdram_ast2500.h
 create mode 100644 arch/arm/include/asm/arch-aspeed/timer.h
 create mode 100644 arch/arm/include/asm/arch-aspeed/wdt.h
 create mode 100644 arch/arm/mach-aspeed/Kconfig
 create mode 100644 arch/arm/mach-aspeed/Makefile
 create mode 100644 arch/arm/mach-aspeed/ast2500-board.c
 create mode 100644 arch/arm/mach-aspeed/ast2500/Kconfig
 create mode 100644 arch/arm/mach-aspeed/ast2500/Makefile
 create mode 100644 arch/arm/mach-aspeed/ast2500/clk_ast2500.c
 create mode 100644 arch/arm/mach-aspeed/ast2500/sdram_ast2500.c
 create mode 100644 arch/arm/mach-aspeed/ast_wdt.c
 create mode 100644 board/aspeed/evb_ast2500/Kconfig
 create mode 100644 board/aspeed/evb_ast2500/Makefile
 create mode 100644 board/aspeed/evb_ast2500/evb_ast2500.c
 create mode 100644 configs/evb-ast2500_defconfig
 create mode 100644 drivers/clk/aspeed/Makefile
 create mode 100644 drivers/clk/aspeed/clk_ast2500.c
 create mode 100644 drivers/sysreset/sysreset_ast.c
 create mode 100644 drivers/timer/ast_timer.c
 create mode 100644 include/configs/aspeed-common.h
 create mode 100644 include/configs/evb_ast2500.h
 create mode 100644 include/dt-bindings/clock/ast2500-scu.h

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2.11.0.390.gc69c2f50cf-goog