[PATCH 6.4 630/800] nvmem: imx-ocotp: Reverse MAC addresses on all i.MX derivates

Greg Kroah-Hartman
2023-07-16T20:23:44Z

From: Alexander Stein <alexander.stein@ew.tq-group.com>

[ Upstream commit 8a00fc606312c68b98add8fe8e6f7a013ce29e78 ]

Not just i.MX8M, but all i.MX6/7 (and subtypes) need to reverse the
MAC address read from fuses. Exceptions are i.MX6SLL and i.MX7ULP which
do not support ethernet at all.

Fixes: d0221a780cbc ("nvmem: imx-ocotp: add support for post processing")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Richard Leitner <richard.leitner@skidata.com> # imx6q
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-3-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nvmem/imx-ocotp.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index ac0edb6398f1e..c1af271052276 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -97,7 +97,6 @@ struct ocotp_params {
unsigned int bank_address_words;
void (*set_timing)(struct ocotp_priv *priv);
struct ocotp_ctrl_reg ctrl;
- bool reverse_mac_address;
};

static int imx_ocotp_wait_for_busy(struct ocotp_priv *priv, u32 flags)
@@ -545,7 +544,6 @@ static const struct ocotp_params imx8mq_params = {
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
- .reverse_mac_address = true,
};

static const struct ocotp_params imx8mm_params = {
@@ -553,7 +551,6 @@ static const struct ocotp_params imx8mm_params = {
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
- .reverse_mac_address = true,
};

static const struct ocotp_params imx8mn_params = {
@@ -561,7 +558,6 @@ static const struct ocotp_params imx8mn_params = {
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
- .reverse_mac_address = true,
};

static const struct ocotp_params imx8mp_params = {
@@ -569,7 +565,6 @@ static const struct ocotp_params imx8mp_params = {
.bank_address_words = 0,
.set_timing = imx_ocotp_set_imx6_timing,
.ctrl = IMX_OCOTP_BM_CTRL_8MP,
- .reverse_mac_address = true,
};

static const struct of_device_id imx_ocotp_dt_ids[] = {
@@ -624,8 +619,7 @@ static int imx_ocotp_probe(struct platform_device *pdev)
imx_ocotp_nvmem_config.size = 4 * priv->params->nregs;
imx_ocotp_nvmem_config.dev = dev;
imx_ocotp_nvmem_config.priv = priv;
- if (priv->params->reverse_mac_address)
- imx_ocotp_nvmem_config.layout = &imx_ocotp_layout;
+ imx_ocotp_nvmem_config.layout = &imx_ocotp_layout;

priv->config = &imx_ocotp_nvmem_config;

--
2.39.2