On Tue, Jul 11, 2023 at 11:11:23AM +0200, Jules Maselbas wrote:
> Add the magic variable "kvx.board_sn" that will reflect the board serial
> number stored in OTP.
>
> Signed-off-by: Jules Maselbas <jmaselbas@xxxxxxxxx>
> ---
> drivers/soc/kvx/kvx_socinfo.c | 33 ++++++++++++++++++++++++++++++++-
> 1 file changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/soc/kvx/kvx_socinfo.c b/drivers/soc/kvx/kvx_socinfo.c
> index 496e817755..87c20c327b 100644
> --- a/drivers/soc/kvx/kvx_socinfo.c
> +++ b/drivers/soc/kvx/kvx_socinfo.c
> @@ -33,9 +33,11 @@
>
> static char *kvx_mppa_id;
> static char *kvx_arch_rev;
> +static char *kvx_board_sn;
>
> BAREBOX_MAGICVAR(kvx.arch_rev, "KVX architecture revision");
> BAREBOX_MAGICVAR(kvx.mppa_id, "KVX MPPA chip id");
> +BAREBOX_MAGICVAR(kvx.board_sn, "KVX board sn");
>
> static void kvx_soc_info_read_revision(void)
> {
> @@ -123,11 +125,40 @@ static int kvx_read_mppa_id(struct device_node *socinfo)
> return 0;
> }
>
> +static int kvx_read_board_sn(struct device_node *socinfo)
> +{
> + struct nvmem_cell *cell;
> + size_t len;
> + char *sn;
> +
> + cell = of_nvmem_cell_get(socinfo, "board_sn");
> + if (IS_ERR(cell)) {
> + pr_debug("Fail to get board_sn cell\n");
> + return PTR_ERR(cell);
> + }
> +
> + sn = (char *)nvmem_cell_read(cell, &len);
> + nvmem_cell_put(cell);
> + if (IS_ERR(sn)) {
> + pr_debug("Fail to read board_sn\n");
> + return PTR_ERR(sn);
> + }
> +
> + kvx_board_sn = xzalloc(len + 1);
> + memcpy(kvx_board_sn, sn, len);
> + globalvar_add_simple_string("kvx.board_sn", &kvx_board_sn);
> + free(sn);
> +
> + return 0;
> +}
> +
> static int kvx_socinfo_probe(struct device *dev)
> {
> kvx_soc_info_read_revision();
>
> - return kvx_read_serial(dev->of_node);
> + kvx_read_board_sn(dev->device_node);
> +
> + return kvx_read_mppa_id(dev->device_node);
> }
Ah, ok. Here is the missing hunk from patch 1. I just fixed this up
while applying.
Sascha
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
