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, 154 insertions, 0 deletions

diff --git a/drivers/net/fm/fm.h b/drivers/net/fm/fm.h
new file mode 100644
index 0000000..be6714f
--- /dev/null
+++ b/drivers/net/fm/fm.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2009-2011 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
+ */
+
+#ifndef __FM_H__
+#define __FM_H__
+
+#include <common.h>
+#include <fm_eth.h>
+#include <asm/fsl_enet.h>
+#include <asm/fsl_fman.h>
+
+/* Port ID */
+#define OH_PORT_ID_BASE		0x01
+#define MAX_NUM_OH_PORT		7
+#define RX_PORT_1G_BASE		0x08
+#define MAX_NUM_RX_PORT_1G	CONFIG_SYS_NUM_FM1_DTSEC
+#define RX_PORT_10G_BASE	0x10
+#define TX_PORT_1G_BASE		0x28
+#define MAX_NUM_TX_PORT_1G	CONFIG_SYS_NUM_FM1_DTSEC
+#define TX_PORT_10G_BASE	0x30
+
+struct fm_muram {
+	u32 base;
+	u32 top;
+	u32 size;
+	u32 alloc;
+};
+#define FM_MURAM_RES_SIZE	0x01000
+
+/* Rx/Tx buffer descriptor */
+struct fm_port_bd {
+	u16 status;
+	u16 len;
+	u32 res0;
+	u16 res1;
+	u16 buf_ptr_hi;
+	u32 buf_ptr_lo;
+};
+
+/* Common BD flags */
+#define BD_LAST			0x0800
+
+/* Rx BD status flags */
+#define RxBD_EMPTY		0x8000
+#define RxBD_LAST		BD_LAST
+#define RxBD_FIRST		0x0400
+#define RxBD_PHYS_ERR		0x0008
+#define RxBD_SIZE_ERR		0x0004
+#define RxBD_ERROR		(RxBD_PHYS_ERR | RxBD_SIZE_ERR)
+
+/* Tx BD status flags */
+#define TxBD_READY		0x8000
+#define TxBD_LAST		BD_LAST
+
+/* Rx/Tx queue descriptor */
+struct fm_port_qd {
+	u16 gen;
+	u16 bd_ring_base_hi;
+	u32 bd_ring_base_lo;
+	u16 bd_ring_size;
+	u16 offset_in;
+	u16 offset_out;
+	u16 res0;
+	u32 res1[0x4];
+};
+
+/* IM global parameter RAM */
+struct fm_port_global_pram {
+	u32 mode;	/* independent mode register */
+	u32 rxqd_ptr;	/* Rx queue descriptor pointer */
+	u32 txqd_ptr;	/* Tx queue descriptor pointer */
+	u16 mrblr;	/* max Rx buffer length */
+	u16 rxqd_bsy_cnt;	/* RxQD busy counter, should be cleared */
+	u32 res0[0x4];
+	struct fm_port_qd rxqd;	/* Rx queue descriptor */
+	struct fm_port_qd txqd;	/* Tx queue descriptor */
+	u32 res1[0x28];
+};
+
+#define FM_PRAM_SIZE		sizeof(struct fm_port_global_pram)
+#define FM_PRAM_ALIGN		256
+#define PRAM_MODE_GLOBAL	0x20000000
+#define PRAM_MODE_GRACEFUL_STOP	0x00800000
+
+#if defined(CONFIG_P1017) || defined(CONFIG_P1023)
+#define FM_FREE_POOL_SIZE	0x2000 /* 8K bytes */
+#else
+#define FM_FREE_POOL_SIZE	0x20000 /* 128K bytes */
+#endif
+#define FM_FREE_POOL_ALIGN	256
+
+u32 fm_muram_alloc(int fm_idx, u32 size, u32 align);
+u32 fm_muram_base(int fm_idx);
+int fm_init_common(int index, struct ccsr_fman *reg);
+int fm_eth_initialize(struct ccsr_fman *reg, struct fm_eth_info *info);
+phy_interface_t fman_port_enet_if(enum fm_port port);
+
+struct fsl_enet_mac {
+	void *base; /* MAC controller registers base address */
+	void *phyregs;
+	int max_rx_len;
+	void (*init_mac)(struct fsl_enet_mac *mac);
+	void (*enable_mac)(struct fsl_enet_mac *mac);
+	void (*disable_mac)(struct fsl_enet_mac *mac);
+	void (*set_mac_addr)(struct fsl_enet_mac *mac, u8 *mac_addr);
+	void (*set_if_mode)(struct fsl_enet_mac *mac, phy_interface_t type,
+				int speed);
+};
+
+/* Fman ethernet private struct */
+struct fm_eth {
+	int fm_index;			/* Fman index */
+	u32 num;			/* 0..n-1 for give type */
+	struct fm_bmi_tx_port *tx_port;
+	struct fm_bmi_rx_port *rx_port;
+	enum fm_eth_type type;		/* 1G or 10G ethernet */
+	phy_interface_t enet_if;
+	struct fsl_enet_mac *mac;	/* MAC controller */
+	struct mii_dev *bus;
+	struct phy_device *phydev;
+	int phyaddr;
+	struct eth_device *dev;
+	int max_rx_len;
+	struct fm_port_global_pram *rx_pram; /* Rx parameter table */
+	struct fm_port_global_pram *tx_pram; /* Tx parameter table */
+	void *rx_bd_ring;		/* Rx BD ring base */
+	void *cur_rxbd;			/* current Rx BD */
+	void *rx_buf;			/* Rx buffer base */
+	void *tx_bd_ring;		/* Tx BD ring base */
+	void *cur_txbd;			/* current Tx BD */
+};
+
+#define RX_BD_RING_SIZE		8
+#define TX_BD_RING_SIZE		8
+#define MAX_RXBUF_LOG2		11
+#define MAX_RXBUF_LEN		(1 << MAX_RXBUF_LOG2)
+
+#endif /* __FM_H__ */