[U-Boot] [PATCH v2 00/10] ARM: sunxi: Add basic support for Allwinner A31 (sun6i)

[Chen-Yu Tsai]

Hi everyone,

This is v2 of the A31 support series. This series add basic (UART and MMC)
support for Allwinner's A31 SoC. The patches, excluding the first one,
were cherry-picked from u-boot-sunxi. Due to the difference between u-boot
mainline and u-boot-sunxi, some patches were rearranged or squashed to
better fit the current state of u-boot, and not introduce any build breaks.
It follows Ian's initial merge method of sun7i support: introducing various
components first, then enabling them in the last commit. I tried to keep
the commits separate, thus retaining the original author and Signed-off-bys.

Patch 1 updates the current UART pinmuxing code to use macros for pull-up
values. This is for existing platforms, but is included as it would conflict
with patch 7.

Patch 2 adds a wrapper around "func(USB, usb, 0)" in BOOT_TARGET_DEVICES
to deal with breakage when USB support is not enabled.

Patch 3 adds memory addresses for some hardware blocks new in sun6i.

Patch 4 adds support for the new PRCM (power reset and clock management)
block, which also contains PLL bias voltage control.

Patch 5 adds support for the clock module. This patch is a bunch of
different sun6i related patches on the clock code, from when sun6i
support was introduced to u-boot-sunxi, up to its current form.
This is done to avoid various conflicts and needlessly introducing
then removing macros.

Patch 6 adds mmc support on sun6i.

Patch 7 adds uart0 pin macros.

Patch 8 adds uart0 muxing on sun6i.

Patch 9 enables sun6i support.

Patch 10 adds a defconfig for the Colombus board, which is an A31
evaluation board.


Changes since v1:

  - Added macros for sun6i uart pinmuxes (patch 7)

  - Use gpio macros when muxing uarts (patch 1, 8)

  - Clarify what is enabled in PRCM (patch 4)

  - Dropped old comments in commit message from Hans (patch 4)

  - Use setbits helpers in PRCM code (patch 4)

  - Drop SPL code block from clock code (patch 5)

  - Make mmc code use fifo in register structure definition, and
    add reserved area to adjust for sun6i's different fifo address
    (patch 6)

  - Rewrite patch 9 commit message to reflect what is supported

  - Split out Colombus board defconfig into separate patch (patch 10)


Cheers
ChenYu


Chen-Yu Tsai (5):
  ARM: sunxi: Use macro values for setting UART GPIO pull-ups
  ARM: sunxi: Fix build break when CONFIG_USB_EHCI is not defined
  ARM: sun6i: Add clock support
  ARM: sun6i: Define UART0 pins for A31
  ARM: sun6i: Add Colombus board defconfig

Hans de Goede (1):
  ARM: sunxi-mmc: Add mmc support for sun6i / A31

Maxime Ripard (2):
  ARM: sun6i: Setup the A31 UART0 muxing
  ARM: sunxi: Add basic A31 support

Oliver Schinagl (2):
  ARM: sun6i: Add base address for the new controllers in A31
  ARM: sun6i: Add support for the power reset control module found on
    the A31

 arch/arm/Kconfig                              |   3 +
 arch/arm/cpu/armv7/sunxi/Makefile             |   2 +
 arch/arm/cpu/armv7/sunxi/board.c              |  10 +-
 arch/arm/cpu/armv7/sunxi/clock_sun6i.c        |  70 ++++++++
 arch/arm/cpu/armv7/sunxi/cpu_info.c           |   2 +
 arch/arm/cpu/armv7/sunxi/prcm.c               |  33 ++++
 arch/arm/include/asm/arch-sunxi/clock.h       |   4 +
 arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 205 ++++++++++++++++++++++
 arch/arm/include/asm/arch-sunxi/cpu.h         |   9 +
 arch/arm/include/asm/arch-sunxi/gpio.h        |   3 +
 arch/arm/include/asm/arch-sunxi/mmc.h         |   5 +-
 arch/arm/include/asm/arch-sunxi/prcm.h        | 238 ++++++++++++++++++++++++++
 board/sunxi/Kconfig                           |  10 +-
 configs/Colombus_defconfig                    |   4 +
 drivers/mmc/sunxi_mmc.c                       |  11 +-
 include/configs/sun6i.h                       |  26 +++
 include/configs/sunxi-common.h                |   8 +-
 17 files changed, 633 insertions(+), 10 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/sunxi/clock_sun6i.c
 create mode 100644 arch/arm/cpu/armv7/sunxi/prcm.c
 create mode 100644 arch/arm/include/asm/arch-sunxi/clock_sun6i.h
 create mode 100644 arch/arm/include/asm/arch-sunxi/prcm.h
 create mode 100644 configs/Colombus_defconfig
 create mode 100644 include/configs/sun6i.h

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2.1.0