[RFC v2 00/10] MIPS: barebox as a first stage loader on the Black Swift board

[Antony Pavlov]

This patchseries adds necessary AR9331 SoC low level initialization routines.
The patchseries makes it possible to use barebox as a first stage loader
on the Black Swift board and, I suppose, other widespread AR9331-based boards.

The patchseries is heavily based on Oleksij Rempel's work on barebox for TP-Link MR3020.

TODOs:

  * add TP-Link MR3020 support (see http://openocd.zylin.com/gitweb?p=openocd.git;a=commitdiff;h=f59d2d9ecfee8899df531b87b7acaa468725f238);
  * clean up Black Swift GPIO code (pbl_reg_set (1 << 18), 0xb80600ac);
  * check macros names linux kernel source compartibility;
  * DT compatible string vendor "smartlx" appears un-documented.
     The site http://www.smartlx.ru/ is suspended.


Changes since RFC v1:

  * add UART initialization routune for DEBUG_LL and NMON;
  * add macros for GPIO_FUNCTION_1 register initialization;
  * add ar71xx GPIO driver.


Antony Pavlov (9):
  MIPS: ar933x: pbl: add pbl_ar9331_ddr2_config macro
  MIPS: mach-ath79: add pbl_ar9331_uart_enable macro
  MIPS: mach-ath79: add debug_ll_ar9331_init macro
  MIPS: ath79: add black-swift board support
  MIPS: add black-swift_defconfig
  gpio: add ath79-gpio driver for Atheros MIPS SoCs
  MIPS: ath79: use gpiolib
  MIPS: dts: ar9331.dtsi: add gpio
  WIP: MIPS: black-swift: use GPIO

Oleksij Rempel (1):
  MIPS: ar933x: pbl: add pbl_ar9331_pll macro

 arch/mips/Kconfig                                  |   1 +
 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 ++++++
 arch/mips/boot/start.S                             |   2 +
 arch/mips/configs/black-swift_defconfig            |  45 +++++++
 arch/mips/dts/ar9331.dtsi                          |  10 ++
 arch/mips/dts/black-swift.dts                      |  60 +++++++++
 arch/mips/include/asm/pbl_macros.h                 |  32 +++++
 arch/mips/mach-ath79/Kconfig                       |   6 +
 arch/mips/mach-ath79/include/mach/ar71xx_regs.h    |  41 ++++++
 arch/mips/mach-ath79/include/mach/debug_ll.h       |  29 ++++
 arch/mips/mach-ath79/include/mach/pbl_macros.h     | 139 ++++++++++++++++++++
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-ath79.c                          | 146 +++++++++++++++++++++
 16 files changed, 582 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
 create mode 100644 drivers/gpio/gpio-ath79.c

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2.5.0