[PATCH v2 0/9] MIPS: ath79: add ar9331 pbl support

[Antony Pavlov]

This patchseries adds full clock and RAM initialization
for AR9331-based boards: now barebox can start
without any other bootloader's help.

This series tested with TP-Link MR3020 (DDR1 RAM)
and Black Swift (DDR2 RAM) boards.

See also
  https://github.com/pepe2k/u-boot_mod


Future works:

  * add 'check run from ROM' commit by Oleksij Rempel (do 0xbfc test);
  * enable more GPIO features (see 'pbl_reg_set (1 << 18), 0xb80600ac').


Changes since v1:

  * make commit messages more consistent;
  * add 'Future works' to cover letter.

Antony Pavlov (8):
  MIPS: ath79: add pbl_ar9331_ddr2_config macro
  MIPS: ath79: add pbl_ar9331_uart_enable macro
  MIPS: ath79: add debug_ll_ar9331_init macro
  MIPS: ath79: add black-swift board support
  MIPS: ath79: add black-swift_defconfig
  MIPS: ath79: add pbl_ar9331_ddr1_config macro
  MIPS: tplink-mr3020: add pbl low level init
  MIPS: tplink-mr3020_defconfig: enable pbl; make image shorter

Oleksij Rempel (1):
  MIPS: ath79: add pbl_ar9331_pll macro

 arch/mips/Makefile                                 |   1 +
 arch/mips/boards/black-swift/Makefile              |   1 +
 arch/mips/boards/black-swift/board.c               |  27 +++
 .../black-swift/include/board/board_pbl_start.h    |  41 +++++
 .../tplink-mr3020/include/board/board_pbl_start.h  |   6 +
 arch/mips/configs/black-swift_defconfig            |  46 ++++++
 arch/mips/configs/tplink-mr3020_defconfig          |   3 +
 arch/mips/dts/black-swift.dts                      |  34 ++++
 arch/mips/include/asm/pbl_macros.h                 |  32 ++++
 arch/mips/mach-ath79/Kconfig                       |   6 +
 arch/mips/mach-ath79/include/mach/ar71xx_regs.h    |  24 +++
 arch/mips/mach-ath79/include/mach/debug_ll.h       |  29 ++++
 arch/mips/mach-ath79/include/mach/pbl_macros.h     | 182 +++++++++++++++++++++
 13 files changed, 432 insertions(+)
 create mode 100644 arch/mips/boards/black-swift/Makefile
 create mode 100644 arch/mips/boards/black-swift/board.c
 create mode 100644 arch/mips/boards/black-swift/include/board/board_pbl_start.h
 create mode 100644 arch/mips/configs/black-swift_defconfig
 create mode 100644 arch/mips/dts/black-swift.dts
 create mode 100644 arch/mips/mach-ath79/include/mach/pbl_macros.h

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2.6.2