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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-03-12 16:48:27 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2024-03-13 12:01:20 +0100 |
| commit | 9bc394d4425ddfbb90dd450768673be8589a8da8 (patch) | |
| tree | 1c524817354b169d72d50996cf3d2c067c863613 | |
| parent | 9b58c5fcd0310fab827203e3a49914822a7b6be0 (diff) | |
| download | barebox-9bc394d4425ddfbb90dd450768673be8589a8da8.tar.gz barebox-9bc394d4425ddfbb90dd450768673be8589a8da8.tar.xz | |
imx25: Feed the unique id to machine_id_set_hashable()
This enables barebox on i.MX25 to generate a per-machine eth address.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.barebox.org/20240312154827.638763-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/mach-imx/iim.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c index 90ca644c2e..f4581396b1 100644 --- a/arch/arm/mach-imx/iim.c +++ b/arch/arm/mach-imx/iim.c @@ -22,6 +22,7 @@ #include <linux/regmap.h> #include <regulator.h> #include <linux/err.h> +#include <machine_id.h> #include <mach/imx/iim.h> #include <mach/imx/imx51-regs.h> @@ -504,6 +505,25 @@ static int imx_iim_probe(struct device *dev) dev_add_param_bool(&iim->dev, "explicit_sense_enable", NULL, NULL, &iim->sense_enable, NULL); + /* Maybe this is too strict? This might also work on i.MX31 and i.MX35 */ + if (IS_ENABLED(CONFIG_MACHINE_ID) && + of_device_is_compatible(dev->of_node, "fsl,imx25-iim")) { + char uid[8]; + + for (i = 0; i < 8; ++i) { + unsigned int value; + + ret = imx_iim_read_field(IMX25_IIM_UID(i), &value); + if (ret) + break; + + uid[i] = value; + } + + if (!ret) + machine_id_set_hashable(uid, 8); + } + return 0; } |