[U-Boot] [PATCH v3 7/8] riscv: nx25: Enable distro boot

[rick at andestech.com]

> -----Original Message-----
> From: Alexander Graf [mailto:agraf at suse.de]
> Sent: Monday, April 23, 2018 2:00 PM
> To: u-boot at lists.denx.de
> Cc: Rick Jian-Zhi Chen(陳建志); Greentime Hu; Philipp Tomsich; Heinrich
> Schuchardt; schwab at suse.de
> Subject: [PATCH v3 7/8] riscv: nx25: Enable distro boot
>
> Distro boot allows for a common boot path on systems that allow distributions to
> easily boot from a default configuration.
>
> This patch enables distro boot for the nx25-ae250. Hopefully this can serve as a
> good example for new boards, so they enable it as well.
>
> Signed-off-by: Alexander Graf <agraf at suse.de>
> ---
>  configs/nx25-ae250_defconfig |  1 +
>  include/configs/nx25-ae250.h | 17 +++++++++++++++++
>  2 files changed, 18 insertions(+)
>
> diff --git a/configs/nx25-ae250_defconfig b/configs/nx25-ae250_defconfig index
> 4f9bd58f75..437083231b 100644
> --- a/configs/nx25-ae250_defconfig
> +++ b/configs/nx25-ae250_defconfig
> @@ -37,3 +37,4 @@ CONFIG_DM_SPI=y
>  CONFIG_ATCSPI200_SPI=y
>  CONFIG_TIMER=y
>  CONFIG_ATCPIT100_TIMER=y
> +CONFIG_DISTRO_DEFAULTS=y
> diff --git a/include/configs/nx25-ae250.h b/include/configs/nx25-ae250.h index
> 0e4c431cab..a90c75abc4 100644
> --- a/include/configs/nx25-ae250.h
> +++ b/include/configs/nx25-ae250.h
> @@ -105,4 +105,21 @@
>  /* Increase max gunzip size */
>  #define CONFIG_SYS_BOOTM_LEN (64 << 20)
>
> +/* When we use RAM as ENV */
> +#define CONFIG_ENV_SIZE 0x2000
> +
> +/* Enable distro boot */
> +#define BOOT_TARGET_DEVICES(func) \
> +     func(MMC, mmc, 0) \
> +     func(DHCP, dhcp, na)
> +#include <config_distro_bootcmd.h>
> +
> +#define CONFIG_EXTRA_ENV_SETTINGS    \
> +                             "kernel_addr_r=0x00080000\0" \
> +                             "pxefile_addr_r=0x01f00000\0" \
> +                             "scriptaddr=0x01f00000\0" \
> +                             "fdt_addr_r=0x02000000\0" \
> +                             "ramdisk_addr_r=0x02800000\0" \
> +                             BOOTENV
> +

Maybe Add #ifdef CONFIG_DISTRO_DEFAULTS to encapsulate the CONFIG_EXTRA_ENV_SETTINGS can disable auto boot easily.

Reviewed-by: Rick Chen <rick at andestech.com>

>  #endif /* __CONFIG_H */
> --
> 2.12.3

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