[U-Boot] [PATCH] rockchip: set scan_dev_for_boot_part env for rockchip SoC

[Simon Glass]

Hi Eddie,

On 17 February 2017 at 00:57, Eddie Cai <eddie.cai.linux at gmail.com> wrote:
> Auto write GPT table if fail to get GPT table when scan_dev_for_boot_part
>
> Signed-off-by: Eddie Cai <eddie.cai.linux at gmail.com>
> ---
>  arch/arm/mach-rockchip/rk3036-board.c | 20 ++++++++++++++-
>  arch/arm/mach-rockchip/rk3288-board.c | 20 ++++++++++++++-
>  arch/arm/mach-rockchip/rk3399-board.c | 46 +++++++++++++++++++++++++++++++++++
>  3 files changed, 84 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm/mach-rockchip/rk3399-board.c
>
> diff --git a/arch/arm/mach-rockchip/rk3036-board.c b/arch/arm/mach-rockchip/rk3036-board.c
> index bf2b268..e9aeaff 100644
> --- a/arch/arm/mach-rockchip/rk3036-board.c
> +++ b/arch/arm/mach-rockchip/rk3036-board.c
> @@ -51,7 +51,25 @@ __weak int rk_board_late_init(void)
>  int board_late_init(void)
>  {
>         setup_boot_mode();
> -
> +       setenv("scan_dev_for_boot_part",
> +                       "part list ${devtype} ${devnum} -bootable test; "
> +                       "if env exists test; then "
> +                              "echo Found valid partition table; "
> +                       "else "
> +                      "echo No valid partition table, write the original partition table; "
> +                              "gpt write ${devtype} ${devnum} ${partitions}; "
> +                              "mmc rescan;"
> +                       "fi;"
> +                       "part list ${devtype} ${devnum} -bootable devplist; "
> +                       "env exists devplist || setenv devplist 1; "
> +                       "for distro_bootpart in ${devplist}; do "
> +                           "if fstype ${devtype} "
> +                                   "${devnum}:${distro_bootpart} "
> +                                   "bootfstype; then "
> +                               "run scan_dev_for_boot; "
> +                             "fi; "
> +                       "done\0"
> +       );
>         return rk_board_late_init();
>  }
>
> diff --git a/arch/arm/mach-rockchip/rk3288-board.c b/arch/arm/mach-rockchip/rk3288-board.c
> index 9894a25..386b155 100644
> --- a/arch/arm/mach-rockchip/rk3288-board.c
> +++ b/arch/arm/mach-rockchip/rk3288-board.c
> @@ -74,7 +74,25 @@ int board_late_init(void)
>  {
>         setup_boot_mode();
>         rk3288_qos_init();
> -
> +       setenv("scan_dev_for_boot_part",
> +                       "part list ${devtype} ${devnum} -bootable test; "
> +                       "if env exists test; then "
> +                              "echo Found valid partition table; "
> +                       "else "
> +                      "echo No valid partition table, write the original partition table; "
> +                              "gpt write ${devtype} ${devnum} ${partitions}; "
> +                              "mmc rescan;"
> +                       "fi;"
> +                       "part list ${devtype} ${devnum} -bootable devplist; "
> +                       "env exists devplist || setenv devplist 1; "
> +                       "for distro_bootpart in ${devplist}; do "
> +                           "if fstype ${devtype} "
> +                                   "${devnum}:${distro_bootpart} "
> +                                   "bootfstype; then "
> +                               "run scan_dev_for_boot; "
> +                             "fi; "
> +                       "done\0"
> +       );
>         return rk_board_late_init();
>  }
>
> diff --git a/arch/arm/mach-rockchip/rk3399-board.c b/arch/arm/mach-rockchip/rk3399-board.c
> new file mode 100644
> index 0000000..3777643
> --- /dev/null
> +++ b/arch/arm/mach-rockchip/rk3399-board.c
> @@ -0,0 +1,46 @@
> +/*
> + * (C) Copyright 2017 ockchip Electronics Co., Ltd
> + *
> + * SPDX-License-Identifier:     GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <clk.h>
> +#include <dm.h>
> +#include <ram.h>
> +#include <syscon.h>
> +#include <asm/io.h>
> +#include <asm/arch/clock.h>
> +#include <asm/arch/periph.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +__weak int rk_board_late_init(void)
> +{
> +       return 0;
> +}
> +
> +int board_late_init(void)
> +{
> +       setenv("scan_dev_for_boot_part",
> +                       "part list ${devtype} ${devnum} -bootable test; "
> +                       "if env exists test; then "
> +                              "echo Found valid partition table; "
> +                       "else "
> +                      "echo No valid partition table, write the original partition table; "
> +                              "gpt write ${devtype} ${devnum} ${partitions}; "
> +                              "mmc rescan;"
> +                       "fi;"
> +                       "part list ${devtype} ${devnum} -bootable devplist; "
> +                       "env exists devplist || setenv devplist 1; "
> +                       "for distro_bootpart in ${devplist}; do "
> +                           "if fstype ${devtype} "
> +                                   "${devnum}:${distro_bootpart} "
> +                                   "bootfstype; then "
> +                               "run scan_dev_for_boot; "
> +                             "fi; "
> +                       "done\0"

What is the purpose of this setenv()?

> +       );
> +       return rk_board_late_init();
> +}
> +
> --
> 2.7.4
>

Regards,
Simon