[PATCH 1/1] nvmem: imx-ocotp: Fix MAC address reversal for i.MX6/7 derivates

[Alexander Stein]

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 at ew.tq-group.com>
---
Looking at [1] reading MAC address from fuses in u-boot is the same for
all i.MX. Only difference is one or two MAC addresses.
I hit the problem on TQMa6Q (i.MX6Q) and could test this patch. For the
others I checked which have ethernet on NXP page.

[1] https://elixir.bootlin.com/u-boot/v2023.07-rc1/source/arch/arm/mach-imx/mac.c

 drivers/nvmem/imx-ocotp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index ac0edb6398f1..93628cd756ec 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -490,6 +490,7 @@ static const struct ocotp_params imx6q_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 imx6sl_params = {
@@ -497,6 +498,7 @@ static const struct ocotp_params imx6sl_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 imx6sll_params = {
@@ -511,6 +513,7 @@ static const struct ocotp_params imx6sx_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 imx6ul_params = {
@@ -518,6 +521,7 @@ static const struct ocotp_params imx6ul_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 imx6ull_params = {
@@ -525,6 +529,7 @@ static const struct ocotp_params imx6ull_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 imx7d_params = {
@@ -532,6 +537,7 @@ static const struct ocotp_params imx7d_params = {
 	.bank_address_words = 4,
 	.set_timing = imx_ocotp_set_imx7_timing,
 	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
+	.reverse_mac_address = true,
 };
 
 static const struct ocotp_params imx7ulp_params = {
-- 
2.34.1