[PATCH 03/11] board: siemens: iot2050: Control pcie power for all variants

[Michael Nazzareno Trimarchi]

On Thu, Oct 10, 2024 at 7:56 AM Jan Kiszka <jan.kiszka at siemens.com> wrote:
>
> From: Baocheng Su <baocheng.su at siemens.com>
>
> The power control pin of pcie interface not only works for M.2 interface
> but also for miniPCIE, so promote this logic to all variants to
> workaround the module hang issue.
>
> Signed-off-by: Baocheng Su <baocheng.su at siemens.com>
> Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
> ---
>  board/siemens/iot2050/board.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/board/siemens/iot2050/board.c b/board/siemens/iot2050/board.c
> index e5c7ce58b06..85cb999f17f 100644
> --- a/board/siemens/iot2050/board.c
> +++ b/board/siemens/iot2050/board.c
> @@ -185,6 +185,12 @@ static void remove_mmc1_target(void)
>         free(boot_targets);
>  }
>
> +static void enable_pcie_connector_power(void)
> +{
> +       set_pinvalue("gpio at 601000_17", "P3V3_PCIE_CON_EN", 1);
> +       udelay(4 * 100);
> +}
> +
>  void set_board_info_env(void)
>  {
>         struct iot2050_info *info = IOT2050_INFO_DATA;
> @@ -288,10 +294,6 @@ static void m2_connector_setup(void)
>         struct m2_config_pins config_pins;
>         unsigned int n;
>
> -       /* enable M.2 connector power */
> -       set_pinvalue("gpio at 601000_17", "P3V3_M2_EN", 1);
> -       udelay(4 * 100);
> -
>         if (m2_manual_config < CONNECTOR_MODE_INVALID) {
>                 mode_info = " [manual mode]";
>                 connector_mode = m2_manual_config;
> @@ -429,6 +431,8 @@ int board_late_init(void)
>         /* change CTRL_MMR register to let serdes0 not output USB3.0 signals. */
>         writel(0x3, SERDES0_LANE_SELECT);
>
> +       enable_pcie_connector_power();
> +
>         if (board_is_m2())
>                 m2_connector_setup();
>
> --
> 2.43.0
>
Reviewed-by: Michael Trimarchi <michael at amarulasolutions.com>

-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael at amarulasolutions.com
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