[U-Boot] [linux-sunxi] [PATCH 00/12] sunxi: Add support for R40 SoC

[Icenowy Zheng]

2017年3月1日 15:04于 Chen-Yu Tsai <wens at csie.org>写道：
>
> Hi everyone, 
>
> This series adds support for the new R40 SoC. The R40 is marketed as the 
> successor to the A20. It is mostly pin compatible (in software) with the 
> A20. It has a somewhat similar memory layout, a hybrid of A20 and newer 
> sun6i gen.. Like the A20, it does not have a PRCM block. 
>
> This series makes checkpatch throw out a lot of errors, mostly "no spaces 
> at the start of a line" or "space prohibited after that open parenthesis 
> '('", but fixing them does not improve the readability of the code. 
>
> Patch 1 introduces the R40 to U-boot, by adding a Kconfig symbol, fixing 
> up any SoC depends on in Kconfig to disable unsupported features, and 
> reworking board level pinmuxes. 
>
> Patch 2 enables using the AXP221s PMIC in I2C mode. The R40 is paired 
> with this PMIC, but it does not have a P2WI controller. 
>
> Patch 3 fixes the watchdog reset function for R40. The R40's watchdog 
> register layout is like the A10/A20. 
>
> Patch 4 adds mmc pinmux settings for R40. 
>
> Patch 5 fixes the PLL lock settings for the R40. The R40's CCU has a 
> new mode for PLL lock, which can be configured and also switched back 
> to the old mode. Here we just use the old mode, which is the same as 
> the other sun6i gen. SoCs. 

The definition of PLL6 is also changed, please also check the default value of PLL6.

>
> Patch 6 provides some default DRAM settings for the R40. These were 
> taken from the Bananapi M2 Ultra, the only R40 board available. 
>
> Patch 7 adds the compatible string for the R40 PIO. It is mostly 
> compatible with the A20, with a few functions gone, and a few new 
> ones. 
>
> Patch 8 adds DRAM initialization support for the R40. The DRAM 
> controller is very similar to the A64 and H5, however the A15 line 
> and CSC1 line are muxed on the same pin. Also the PIR_QSGATE bit 
> must not be set, or DRAM init fails. 
>
> Patch 9 enables SPL for R40. 
>
> Patch 10 fixes the address of the CPUCFG block on the R40. It is 
> the same as on the A20. 
>
> Patch 11 adds a PSCI implementation for the R40. As the register 
> layout is slightly erratic, we just use a macro for the ones that 
> can't fit into the cpucfg register definition structure. 
>
> Patch 12 adds a board dts and defconfig for the Bananapi M2 Ultra. 
>
> Please have a look. 
>
> Regards 
> ChenYu 
>
> Chen-Yu Tsai (12): 
>   sunxi: Add initial support for R40 
>   sunxi: Enable AXP221s in I2C mode with the R40 SoC 
>   sunxi: Fix watchdog reset function for R40 
>   sunxi: Add mmc[1-3] pinmux settings for R40 
>   sunxi: Set PLL lock enable bits for R40 
>   sunxi: Provide defaults for R40 DRAM settings 
>   gpio: sunxi: Add compatible string for R40 PIO 
>   sunxi: Use H3/A64 DRAM initialization code for R40 
>   sunxi: Enable SPL for R40 
>   sunxi: Fix CPUCFG address for R40 
>   sunxi: Add PSCI support for R40 
>   sunxi: Add support for Bananapi M2 Ultra 
>
> arch/arm/cpu/armv7/sunxi/psci.c                 |  35 ++++- 
> arch/arm/dts/Makefile                           |   2 + 
> arch/arm/dts/sun8i-r40-bananapi-m2-ultra.dts    |  69 +++++++++ 
> arch/arm/dts/sun8i-r40.dtsi                     | 183 ++++++++++++++++++++++++ 
> arch/arm/include/asm/arch-sunxi/clock_sun6i.h   |   2 + 
> arch/arm/include/asm/arch-sunxi/cpu.h           |   1 + 
> arch/arm/include/asm/arch-sunxi/cpu_sun4i.h     |   6 +- 
> arch/arm/include/asm/arch-sunxi/dram.h          |   4 +- 
> arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h |  20 ++- 
> arch/arm/include/asm/arch-sunxi/timer.h         |   5 +- 
> arch/arm/include/asm/arch-sunxi/watchdog.h      |   5 +- 
> arch/arm/mach-sunxi/Makefile                    |   1 + 
> arch/arm/mach-sunxi/board.c                     |  15 +- 
> arch/arm/mach-sunxi/clock_sun6i.c               |   9 +- 
> arch/arm/mach-sunxi/cpu_info.c                  |   2 + 
> arch/arm/mach-sunxi/dram_sun8i_h3.c             | 121 ++++++++++++++-- 
> arch/arm/mach-sunxi/pmic_bus.c                  |   7 + 
> board/sunxi/Kconfig                             |  18 ++- 
> board/sunxi/MAINTAINERS                         |   6 + 
> board/sunxi/board.c                             |  36 ++++- 
> configs/Bananapi_M2_Ultra_defconfig             |  15 ++ 
> drivers/gpio/sunxi_gpio.c                       |   1 + 
> drivers/power/Kconfig                           |  16 ++- 
> 23 files changed, 530 insertions(+), 49 deletions(-) 
> create mode 100644 arch/arm/dts/sun8i-r40-bananapi-m2-ultra.dts 
> create mode 100644 arch/arm/dts/sun8i-r40.dtsi 
> create mode 100644 configs/Bananapi_M2_Ultra_defconfig 
>
> -- 
> 2.11.0 
>
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