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| author | Robin van der Gracht <robin@protonic.nl> | 2022-06-16 15:11:14 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-06-17 09:09:09 +0200 |
| commit | c9d3958b17b81c445e838fa4d025cb238f68ff6d (patch) | |
| tree | e0b714504cbfac95386b7de69d7abdf97830f831 /arch | |
| parent | 75d9ce22ceae0d51b269f35608527dee22cabce8 (diff) | |
| download | barebox-c9d3958b17b81c445e838fa4d025cb238f68ff6d.tar.gz barebox-c9d3958b17b81c445e838fa4d025cb238f68ff6d.tar.xz | |
ARM: boards: protonic-imx6: Register serial_number parameter with ocotp
Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Link: https://lore.barebox.org/20220616131114.214628-10-robin@protonic.nl
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boards/protonic-imx6/board.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/arch/arm/boards/protonic-imx6/board.c b/arch/arm/boards/protonic-imx6/board.c index 2c03fcbf48..a0dec5b1e2 100644 --- a/arch/arm/boards/protonic-imx6/board.c +++ b/arch/arm/boards/protonic-imx6/board.c @@ -90,6 +90,7 @@ struct prt_imx6_priv { unsigned int hw_rev; const char *name; unsigned int no_usb_check; + char *ocotp_serial; }; struct prti6q_rfid_contents { @@ -252,7 +253,6 @@ static int prt_imx6_read_i2c_mac_serial(struct prt_imx6_priv *priv) static int prt_imx6_read_ocotp_serial(struct prt_imx6_priv *priv) { int ret; - char serial[11]; unsigned val; ret = imx_ocotp_read_field(OCOTP_GP1, &val); @@ -265,9 +265,31 @@ static int prt_imx6_read_ocotp_serial(struct prt_imx6_priv *priv) return -EINVAL; val &= PRT_IMX6_GP1_FMT_DEC - 1; - snprintf(serial, sizeof(serial), "%u", val); + priv->ocotp_serial = xasprintf("%u", val); - return prt_imx6_set_serial(priv, serial); + return prt_imx6_set_serial(priv, priv->ocotp_serial); +} + +static int prt_imx6_set_ocotp_serial(struct param_d *param, void *driver_priv) +{ + struct prt_imx6_priv *priv = driver_priv; + int ret; + unsigned val; + + ret = kstrtouint(priv->ocotp_serial, 10, &val); + if (ret) + return ret; + + if (val & PRT_IMX6_GP1_FMT_DEC) + return -ERANGE; + val |= PRT_IMX6_GP1_FMT_DEC; + + ret = imx_ocotp_write_field(OCOTP_GP1, val); + if (ret) + return ret; + + barebox_set_serial_number(priv->ocotp_serial); + return 0; } static int prt_imx6_usb_mount(struct prt_imx6_priv *priv) @@ -537,6 +559,8 @@ exit_bbu: static int prt_imx6_devices_init(void) { struct prt_imx6_priv *priv = prt_priv; + struct device_d *ocotp_dev; + struct param_d *p; if (!priv) return 0; @@ -559,6 +583,15 @@ static int prt_imx6_devices_init(void) prt_imx6_env_init(priv); + ocotp_dev = get_device_by_name("ocotp0"); + if (ocotp_dev) { + p = dev_add_param_string(ocotp_dev, "serial_number", + prt_imx6_set_ocotp_serial, NULL, + &priv->ocotp_serial, priv); + if (IS_ERR(p)) + return PTR_ERR(p); + } + return 0; } late_initcall(prt_imx6_devices_init); |