[PATCH v3 07/10] arm: sunxi: add support for DIP detection to CHIP board

[Maxime Ripard]

Hi,

On Wed, Mar 24, 2021 at 11:04:17AM +0100, Kory Maincent wrote:
> Add the extension_board_scan specific function to scan the information
> of the EEPROM on one-wire and fill the extension struct.
> Add the Kconfig symbol to enable the needs to detect DIPs.
> 
> Signed-off-by: Kory Maincent <kory.maincent at bootlin.com>
> ---
> 
> Need the following patches series to fix a one-wire gpio issue.
> https://lists.denx.de/pipermail/u-boot/2021-February/440073.html
> 
> Change since v1:
> - Replace TARGET_CHIP options by CHIP_DIP_SCAN
> 
> Change since v2:
> - Fix typo
> - Place the Kconfig symbol in that patch
> 
>  arch/arm/mach-sunxi/Kconfig |   9 ++++
>  board/sunxi/Makefile        |   1 +
>  board/sunxi/chip.c          | 104 ++++++++++++++++++++++++++++++++++++
>  3 files changed, 114 insertions(+)
>  create mode 100644 board/sunxi/chip.c
> 
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index 49ef217f08..2b6ba873ff 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -1017,3 +1017,12 @@ config PINEPHONE_DT_SELECTION
>  	  correct PinePhone hardware revision during boot.
>  
>  endif
> +
> +config CHIP_DIP_SCAN
> +	bool "Enable DIPs detection for CHIP board"
> +	select SUPPORT_EXTENSION_SCAN
> +	select W1
> +	select W1_GPIO
> +	select W1_EEPROM
> +	select W1_EEPROM_DS24XXX
> +	imply CMD_EXTENSION
> diff --git a/board/sunxi/Makefile b/board/sunxi/Makefile
> index c4e13f8c38..d96b7897b6 100644
> --- a/board/sunxi/Makefile
> +++ b/board/sunxi/Makefile
> @@ -11,3 +11,4 @@ obj-$(CONFIG_SUN7I_GMAC)	+= gmac.o
>  obj-$(CONFIG_MACH_SUN4I)	+= dram_sun4i_auto.o
>  obj-$(CONFIG_MACH_SUN5I)	+= dram_sun5i_auto.o
>  obj-$(CONFIG_MACH_SUN7I)	+= dram_sun5i_auto.o
> +obj-$(CONFIG_CHIP_DIP_SCAN)	+= chip.o
> diff --git a/board/sunxi/chip.c b/board/sunxi/chip.c
> new file mode 100644
> index 0000000000..9be2ede57b
> --- /dev/null
> +++ b/board/sunxi/chip.c
> @@ -0,0 +1,104 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * (C) Copyright 2021
> + * Köry Maincent, Bootlin, <kory.maincent at bootlin.com>
> + * Based on initial code from Maxime Ripard
> + */
> +
> +#include <common.h>
> +#include <malloc.h>
> +#include <dm.h>
> +#include <w1.h>
> +#include <w1-eeprom.h>
> +#include <dm/device-internal.h>
> +
> +#include <asm/arch/gpio.h>
> +
> +#include <extension_board.h>
> +
> +#ifdef CONFIG_CMD_EXTENSION

You depend on CMD_EXTENSION already, so that code won't even be compiled
if that configuration option is false

Once fixed,
Reviewed-by: Maxime Ripard <maxime at cerno.tech>

Maxime
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