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, 208 insertions, 0 deletions

diff --git a/drivers/net/fm/init.c b/drivers/net/fm/init.c
new file mode 100644
index 0000000000..5f05ab14af
--- /dev/null
+++ b/drivers/net/fm/init.c
@@ -0,0 +1,208 @@
+/*
+ * 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 <asm/io.h>
+#include <asm/fsl_serdes.h>
+
+#include "fm.h"
+
+struct fm_eth_info fm_info[] = {
+#if (CONFIG_SYS_NUM_FM1_DTSEC >= 1)
+	FM_DTSEC_INFO_INITIALIZER(1, 1),
+#endif
+#if (CONFIG_SYS_NUM_FM1_DTSEC >= 2)
+	FM_DTSEC_INFO_INITIALIZER(1, 2),
+#endif
+#if (CONFIG_SYS_NUM_FM1_DTSEC >= 3)
+	FM_DTSEC_INFO_INITIALIZER(1, 3),
+#endif
+#if (CONFIG_SYS_NUM_FM1_DTSEC >= 4)
+	FM_DTSEC_INFO_INITIALIZER(1, 4),
+#endif
+#if (CONFIG_SYS_NUM_FM1_DTSEC >= 5)
+	FM_DTSEC_INFO_INITIALIZER(1, 5),
+#endif
+#if (CONFIG_SYS_NUM_FM2_DTSEC >= 1)
+	FM_DTSEC_INFO_INITIALIZER(2, 1),
+#endif
+#if (CONFIG_SYS_NUM_FM2_DTSEC >= 2)
+	FM_DTSEC_INFO_INITIALIZER(2, 2),
+#endif
+#if (CONFIG_SYS_NUM_FM2_DTSEC >= 3)
+	FM_DTSEC_INFO_INITIALIZER(2, 3),
+#endif
+#if (CONFIG_SYS_NUM_FM2_DTSEC >= 4)
+	FM_DTSEC_INFO_INITIALIZER(2, 4),
+#endif
+#if (CONFIG_SYS_NUM_FM1_10GEC >= 1)
+	FM_TGEC_INFO_INITIALIZER(1, 1),
+#endif
+#if (CONFIG_SYS_NUM_FM2_10GEC >= 1)
+	FM_TGEC_INFO_INITIALIZER(2, 1),
+#endif
+};
+
+int fm_standard_init(bd_t *bis)
+{
+	int i;
+	struct ccsr_fman *reg;
+
+	reg = (void *)CONFIG_SYS_FSL_FM1_ADDR;
+	if (fm_init_common(0, reg))
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
+		if ((fm_info[i].enabled) && (fm_info[i].index == 1))
+			fm_eth_initialize(reg, &fm_info[i]);
+	}
+
+#if (CONFIG_SYS_NUM_FMAN == 2)
+	reg = (void *)CONFIG_SYS_FSL_FM2_ADDR;
+	if (fm_init_common(1, reg))
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
+		if ((fm_info[i].enabled) && (fm_info[i].index == 2))
+			fm_eth_initialize(reg, &fm_info[i]);
+	}
+#endif
+
+	return 1;
+}
+
+/* simple linear search to map from port to array index */
+static int fm_port_to_index(enum fm_port port)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
+		if (fm_info[i].port == port)
+			return i;
+	}
+
+	return -1;
+}
+
+/*
+ * Determine if an interface is actually active based on HW config
+ * we expect fman_port_enet_if() to report PHY_INTERFACE_MODE_NONE if
+ * the interface is not active based on HW cfg of the SoC
+ */
+void fman_enet_init(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
+		phy_interface_t enet_if;
+
+		enet_if = fman_port_enet_if(fm_info[i].port);
+		if (enet_if != PHY_INTERFACE_MODE_NONE) {
+			fm_info[i].enabled = 1;
+			fm_info[i].enet_if = enet_if;
+		} else {
+			fm_info[i].enabled = 0;
+		}
+	}
+
+	return ;
+}
+
+void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus)
+{
+	int i = fm_port_to_index(port);
+
+	if (i == -1)
+		return;
+
+	fm_info[i].bus = bus;
+}
+
+void fm_info_set_phy_address(enum fm_port port, int address)
+{
+	int i = fm_port_to_index(port);
+
+	if (i == -1)
+		return;
+
+	fm_info[i].phy_addr = address;
+}
+
+/*
+ * Returns the type of the data interface between the given MAC and its PHY.
+ * This is typically determined by the RCW.
+ */
+phy_interface_t fm_info_get_enet_if(enum fm_port port)
+{
+	int i = fm_port_to_index(port);
+
+	if (i == -1)
+		return PHY_INTERFACE_MODE_NONE;
+
+	if (fm_info[i].enabled)
+		return fm_info[i].enet_if;
+
+	return PHY_INTERFACE_MODE_NONE;
+}
+
+static void
+__def_board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
+				enum fm_port port, int offset)
+{
+	return ;
+}
+
+void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
+				enum fm_port port, int offset)
+	 __attribute__((weak, alias("__def_board_ft_fman_fixup_port")));
+
+static void ft_fixup_port(void *blob, struct fm_eth_info *info, char *prop)
+{
+	int off, ph;
+	phys_addr_t paddr = CONFIG_SYS_CCSRBAR_PHYS + info->compat_offset;
+
+	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
+
+	if (info->enabled) {
+		fdt_fixup_phy_connection(blob, off, info->enet_if);
+		board_ft_fman_fixup_port(blob, prop, paddr, info->port, off);
+		return ;
+	}
+
+	/* board code might have caused offset to change */
+	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
+
+	/* disable both the mac node and the node that has a handle to it */
+	fdt_setprop_string(blob, off, "status", "disabled");
+
+	ph = fdt_get_phandle(blob, off);
+	do_fixup_by_prop(blob, "fsl,fman-mac", &ph, sizeof(ph),
+		"status", "disabled", strlen("disabled") + 1, 1);
+}
+
+void fdt_fixup_fman_ethernet(void *blob)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
+		if (fm_info[i].type == FM_ETH_1G_E)
+			ft_fixup_port(blob, &fm_info[i], "fsl,fman-1g-mac");
+		else
+			ft_fixup_port(blob, &fm_info[i], "fsl,fman-10g-mac");
+	}
+}