driver: net: fm: add DM ETH support

Probe the FMan MACs based on the device tree while
retaining the legacy code/functionality.
One notable change introduced here is that, for DM_ETH,
the name of the interfaces is corrected to the fmX-macY
format, that avoids the referral to the MAC block names
which were incorrect for FMan v3 devices (i.e. DTSEC,
TGEC) and had weird formatting (i.e. FM1@DTSEC6, FM1@TGEC1).
The legacy code is left unchanged in this respect.

Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/drivers/net/fm/fm.c b/drivers/net/fm/fm.c
index 7a081b9d03..8ab1816395 100644
--- a/drivers/net/fm/fm.c
+++ b/drivers/net/fm/fm.c
@@ -9,6 +9,9 @@
 #include <asm/io.h>
 #include <linux/errno.h>
 #include <u-boot/crc.h>
+#ifdef CONFIG_DM_ETH
+#include <dm.h>
+#endif
 
 #include "fm.h"
 #include <fsl_qe.h>		/* For struct qe_firmware */
@@ -529,3 +532,80 @@ int fm_init_common(int index, struct ccsr_fman *reg)
 	return fm_init_bmi(index, &reg->fm_bmi_common);
 }
 #endif
+
+#ifdef CONFIG_DM_ETH
+struct fman_priv {
+	struct ccsr_fman *reg;
+	unsigned int fman_id;
+};
+
+static const struct udevice_id fman_ids[] = {
+	{ .compatible = "fsl,fman" },
+	{}
+};
+
+static int fman_probe(struct udevice *dev)
+{
+	struct fman_priv *priv = dev_get_priv(dev);
+
+	priv->reg = (struct ccsr_fman *)(uintptr_t)dev_read_addr(dev);
+
+	if (dev_read_u32(dev, "cell-index", &priv->fman_id)) {
+		printf("FMan node property cell-index missing\n");
+		return -EINVAL;
+	}
+
+	return fm_init_common(priv->fman_id, priv->reg);
+}
+
+static int fman_remove(struct udevice *dev)
+{
+	return 0;
+}
+
+int fman_id(struct udevice *dev)
+{
+	struct fman_priv *priv = dev_get_priv(dev);
+
+	return priv->fman_id;
+}
+
+void *fman_port(struct udevice *dev, int num)
+{
+	struct fman_priv *priv = dev_get_priv(dev);
+
+	return &priv->reg->port[num - 1].fm_bmi;
+}
+
+void *fman_mdio(struct udevice *dev, enum fm_mac_type type, int num)
+{
+	struct fman_priv *priv = dev_get_priv(dev);
+	void *res = NULL;
+
+	switch (type) {
+#ifdef CONFIG_SYS_FMAN_V3
+	case FM_MEMAC:
+		res = &priv->reg->memac[num].fm_memac_mdio;
+		break;
+#else
+	case FM_DTSEC:
+		res = &priv->reg->mac_1g[num].fm_mdio.miimcfg;
+		break;
+	case FM_TGEC:
+		res = &priv->reg->mac_10g[num].fm_10gec_mdio;
+		break;
+#endif
+	}
+	return res;
+}
+
+U_BOOT_DRIVER(fman) = {
+	.name = "fman",
+	.id = UCLASS_SIMPLE_BUS,
+	.of_match = fman_ids,
+	.probe = fman_probe,
+	.remove = fman_remove,
+	.priv_auto_alloc_size = sizeof(struct fman_priv),
+	.flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif /* CONFIG_DM_ETH */