[PATCH] soc: imx: Add i.MX8MN SoC driver support

[Anson . Huang]

From: Anson Huang <anson.hu...@nxp.com>

This patch adds i.MX8MN SoC driver support:

root@imx8mnevk:~# cat /sys/devices/soc0/family
Freescale i.MX

root@imx8mnevk:~# cat /sys/devices/soc0/machine
NXP i.MX8MNano DDR4 EVK board

root@imx8mnevk:~# cat /sys/devices/soc0/soc_id
i.MX8MN

root@imx8mnevk:~# cat /sys/devices/soc0/revision
1.0

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
 drivers/soc/imx/soc-imx8.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index 3842d09..02309a2 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -55,7 +55,12 @@ static u32 __init imx8mm_soc_revision(void)
        void __iomem *anatop_base;
        u32 rev;
 
-       np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-anatop");
+       if (of_machine_is_compatible("fsl,imx8mm"))
+               np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-anatop");
+       else if (of_machine_is_compatible("fsl,imx8mn"))
+               np = of_find_compatible_node(NULL, NULL, "fsl,imx8mn-anatop");
+       else
+               np = NULL;
        if (!np)
                return 0;
 
@@ -79,9 +84,15 @@ static const struct imx8_soc_data imx8mm_soc_data = {
        .soc_revision = imx8mm_soc_revision,
 };
 
+static const struct imx8_soc_data imx8mn_soc_data = {
+       .name = "i.MX8MN",
+       .soc_revision = imx8mm_soc_revision,
+};
+
 static const struct of_device_id imx8_soc_match[] = {
        { .compatible = "fsl,imx8mq", .data = &imx8mq_soc_data, },
        { .compatible = "fsl,imx8mm", .data = &imx8mm_soc_data, },
+       { .compatible = "fsl,imx8mn", .data = &imx8mn_soc_data, },
        { }
 };
 
-- 
2.7.4