powerpc/85xx: Add support for FMan ethernet in Independent mode

The Frame Manager (FMan) on QorIQ SoCs with DPAA (datapath acceleration
architecture) is the ethernet contoller block.  Normally it is utilized
via Queue Manager (Qman) and Buffer Manager (Bman).  However for boot
usage the FMan supports a mode similar to QE or CPM ethernet collers
called Independent mode.

Additionally the FMan block supports multiple 1g and 10g interfaces as a
single entity in the system rather than each controller being managed
uniquely.  This means we have to initialize all of Fman regardless of
the number of interfaces we utilize.

Different SoCs support different combinations of the number of FMan as
well as the number of 1g & 10g interfaces support per Fman.

We add support for the following SoCs:
 * P1023 - 1 Fman, 2x1g
 * P4080 - 2 Fman, each Fman has 4x1g and 1x10g
 * P204x/P3041/P5020 - 1 Fman, 5x1g, 1x10g

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@freescale.com>
Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Shaohui Xie <b21989@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 85 insertions, 0 deletions

diff --git a/drivers/net/fm/p5020.c b/drivers/net/fm/p5020.c
new file mode 100644
index 0000000..59638eb
--- /dev/null
+++ b/drivers/net/fm/p5020.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <phy.h>
+#include <fm_eth.h>
+#include <asm/io.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_serdes.h>
+
+u32 port_to_devdisr[] = {
+	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
+	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
+	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
+	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
+	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
+	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1,
+};
+
+static int is_device_disabled(enum fm_port port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 devdisr2 = in_be32(&gur->devdisr2);
+
+	return port_to_devdisr[port] & devdisr2;
+}
+
+phy_interface_t fman_port_enet_if(enum fm_port port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
+
+	if (is_device_disabled(port))
+		return PHY_INTERFACE_MODE_NONE;
+
+	if ((port == FM1_10GEC1) && (is_serdes_configured(XAUI_FM1)))
+		return PHY_INTERFACE_MODE_XGMII;
+
+	/* handle RGMII first */
+	if ((port == FM1_DTSEC4) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
+		FSL_CORENET_RCWSR11_EC1_FM1_DTSEC4_RGMII))
+		return PHY_INTERFACE_MODE_RGMII;
+
+	if ((port == FM1_DTSEC4) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
+		FSL_CORENET_RCWSR11_EC1_FM1_DTSEC4_MII))
+		return PHY_INTERFACE_MODE_MII;
+
+	if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
+		FSL_CORENET_RCWSR11_EC2_FM1_DTSEC5_RGMII))
+		return PHY_INTERFACE_MODE_RGMII;
+
+	if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
+		FSL_CORENET_RCWSR11_EC2_FM1_DTSEC5_MII))
+		return PHY_INTERFACE_MODE_MII;
+
+	switch (port) {
+	case FM1_DTSEC1:
+	case FM1_DTSEC2:
+	case FM1_DTSEC3:
+	case FM1_DTSEC4:
+	case FM1_DTSEC5:
+		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
+			return PHY_INTERFACE_MODE_SGMII;
+		break;
+	default:
+		return PHY_INTERFACE_MODE_NONE;
+	}
+
+	return PHY_INTERFACE_MODE_NONE;
+}