stmmac: add GMAC4 DMA/CORE Header File

This is the main header file to define all the
macro used for GMAC4 DMA and CORE parts.
Signed-off-by: NAlexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/dwmac4.h

+/*
+ * DWMAC4 Header file.
+ *
+ * Copyright (C) 2015  STMicroelectronics Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * Author: Alexandre Torgue <alexandre.torgue@st.com>
+ */
+
+#ifndef __DWMAC4_H__
+#define __DWMAC4_H__
+
+#include "common.h"
+
+/*  MAC registers */
+#define GMAC_CONFIG			0x00000000
+#define GMAC_PACKET_FILTER		0x00000008
+#define GMAC_HASH_TAB_0_31		0x00000010
+#define GMAC_HASH_TAB_32_63		0x00000014
+#define GMAC_RX_FLOW_CTRL		0x00000090
+#define GMAC_QX_TX_FLOW_CTRL(x)		(0x70 + x * 4)
+#define GMAC_INT_STATUS			0x000000b0
+#define GMAC_INT_EN			0x000000b4
+#define GMAC_AN_CTRL			0x000000e0
+#define GMAC_AN_STATUS			0x000000e4
+#define GMAC_AN_ADV			0x000000e8
+#define GMAC_AN_LPA			0x000000ec
+#define GMAC_PMT			0x000000c0
+#define GMAC_VERSION			0x00000110
+#define GMAC_DEBUG			0x00000114
+#define GMAC_HW_FEATURE0		0x0000011c
+#define GMAC_HW_FEATURE1		0x00000120
+#define GMAC_HW_FEATURE2		0x00000124
+#define GMAC_MDIO_ADDR			0x00000200
+#define GMAC_MDIO_DATA			0x00000204
+#define GMAC_ADDR_HIGH(reg)		(0x300 + reg * 8)
+#define GMAC_ADDR_LOW(reg)		(0x304 + reg * 8)
+
+/* MAC Packet Filtering */
+#define GMAC_PACKET_FILTER_PR		BIT(0)
+#define GMAC_PACKET_FILTER_HMC		BIT(2)
+#define GMAC_PACKET_FILTER_PM		BIT(4)
+
+#define GMAC_MAX_PERFECT_ADDRESSES	128
+
+/* MAC Flow Control RX */
+#define GMAC_RX_FLOW_CTRL_RFE		BIT(0)
+
+/* MAC Flow Control TX */
+#define GMAC_TX_FLOW_CTRL_TFE		BIT(1)
+#define GMAC_TX_FLOW_CTRL_PT_SHIFT	16
+
+/*  MAC Interrupt bitmap*/
+#define GMAC_INT_PMT_EN			BIT(4)
+#define GMAC_INT_LPI_EN			BIT(5)
+
+enum dwmac4_irq_status {
+	time_stamp_irq = 0x00001000,
+	mmc_rx_csum_offload_irq = 0x00000800,
+	mmc_tx_irq = 0x00000400,
+	mmc_rx_irq = 0x00000200,
+	mmc_irq = 0x00000100,
+	pmt_irq = 0x00000010,
+	pcs_ane_irq = 0x00000004,
+	pcs_link_irq = 0x00000002,
+};
+
+/* MAC Auto-Neg bitmap*/
+#define	GMAC_AN_CTRL_RAN		BIT(9)
+#define	GMAC_AN_CTRL_ANE		BIT(12)
+#define GMAC_AN_CTRL_ELE		BIT(14)
+#define GMAC_AN_FD			BIT(5)
+#define GMAC_AN_HD			BIT(6)
+#define GMAC_AN_PSE_MASK		GENMASK(8, 7)
+#define GMAC_AN_PSE_SHIFT		7
+
+/* MAC PMT bitmap */
+enum power_event {
+	pointer_reset =	0x80000000,
+	global_unicast = 0x00000200,
+	wake_up_rx_frame = 0x00000040,
+	magic_frame = 0x00000020,
+	wake_up_frame_en = 0x00000004,
+	magic_pkt_en = 0x00000002,
+	power_down = 0x00000001,
+};
+
+/* MAC Debug bitmap */
+#define GMAC_DEBUG_TFCSTS_MASK		GENMASK(18, 17)
+#define GMAC_DEBUG_TFCSTS_SHIFT		17
+#define GMAC_DEBUG_TFCSTS_IDLE		0
+#define GMAC_DEBUG_TFCSTS_WAIT		1
+#define GMAC_DEBUG_TFCSTS_GEN_PAUSE	2
+#define GMAC_DEBUG_TFCSTS_XFER		3
+#define GMAC_DEBUG_TPESTS		BIT(16)
+#define GMAC_DEBUG_RFCFCSTS_MASK	GENMASK(2, 1)
+#define GMAC_DEBUG_RFCFCSTS_SHIFT	1
+#define GMAC_DEBUG_RPESTS		BIT(0)
+
+/* MAC config */
+#define GMAC_CONFIG_IPC			BIT(27)
+#define GMAC_CONFIG_2K			BIT(22)
+#define GMAC_CONFIG_ACS			BIT(20)
+#define GMAC_CONFIG_BE			BIT(18)
+#define GMAC_CONFIG_JD			BIT(17)
+#define GMAC_CONFIG_JE			BIT(16)
+#define GMAC_CONFIG_PS			BIT(15)
+#define GMAC_CONFIG_FES			BIT(14)
+#define GMAC_CONFIG_DM			BIT(13)
+#define GMAC_CONFIG_DCRS		BIT(9)
+#define GMAC_CONFIG_TE			BIT(1)
+#define GMAC_CONFIG_RE			BIT(0)
+
+/* MAC HW features0 bitmap */
+#define GMAC_HW_FEAT_ADDMAC		BIT(18)
+#define GMAC_HW_FEAT_RXCOESEL		BIT(16)
+#define GMAC_HW_FEAT_TXCOSEL		BIT(14)
+#define GMAC_HW_FEAT_EEESEL		BIT(13)
+#define GMAC_HW_FEAT_TSSEL		BIT(12)
+#define GMAC_HW_FEAT_MMCSEL		BIT(8)
+#define GMAC_HW_FEAT_MGKSEL		BIT(7)
+#define GMAC_HW_FEAT_RWKSEL		BIT(6)
+#define GMAC_HW_FEAT_SMASEL		BIT(5)
+#define GMAC_HW_FEAT_VLHASH		BIT(4)
+#define GMAC_HW_FEAT_PCSSEL		BIT(3)
+#define GMAC_HW_FEAT_HDSEL		BIT(2)
+#define GMAC_HW_FEAT_GMIISEL		BIT(1)
+#define GMAC_HW_FEAT_MIISEL		BIT(0)
+
+/* MAC HW features1 bitmap */
+#define GMAC_HW_FEAT_AVSEL		BIT(20)
+#define GMAC_HW_TSOEN			BIT(18)
+
+/* MAC HW features2 bitmap */
+#define GMAC_HW_FEAT_TXCHCNT		GENMASK(21, 18)
+#define GMAC_HW_FEAT_RXCHCNT		GENMASK(15, 12)
+
+/* MAC HW ADDR regs */
+#define GMAC_HI_DCS			GENMASK(18, 16)
+#define GMAC_HI_DCS_SHIFT		16
+#define GMAC_HI_REG_AE			BIT(31)
+
+/*  MTL registers */
+#define MTL_INT_STATUS			0x00000c20
+#define MTL_INT_Q0			BIT(0)
+
+#define MTL_CHAN_BASE_ADDR		0x00000d00
+#define MTL_CHAN_BASE_OFFSET		0x40
+#define MTL_CHANX_BASE_ADDR(x)		(MTL_CHAN_BASE_ADDR + \
+					(x * MTL_CHAN_BASE_OFFSET))
+
+#define MTL_CHAN_TX_OP_MODE(x)		MTL_CHANX_BASE_ADDR(x)
+#define MTL_CHAN_TX_DEBUG(x)		(MTL_CHANX_BASE_ADDR(x) + 0x8)
+#define MTL_CHAN_INT_CTRL(x)		(MTL_CHANX_BASE_ADDR(x) + 0x2c)
+#define MTL_CHAN_RX_OP_MODE(x)		(MTL_CHANX_BASE_ADDR(x) + 0x30)
+#define MTL_CHAN_RX_DEBUG(x)		(MTL_CHANX_BASE_ADDR(x) + 0x38)
+
+#define MTL_OP_MODE_RSF			BIT(5)
+#define MTL_OP_MODE_TSF			BIT(1)
+
+#define MTL_OP_MODE_TTC_MASK		0x70
+#define MTL_OP_MODE_TTC_SHIFT		4
+
+#define MTL_OP_MODE_TTC_32		0
+#define MTL_OP_MODE_TTC_64		(1 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_96		(2 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_128		(3 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_192		(4 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_256		(5 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_384		(6 << MTL_OP_MODE_TTC_SHIFT)
+#define MTL_OP_MODE_TTC_512		(7 << MTL_OP_MODE_TTC_SHIFT)
+
+#define MTL_OP_MODE_RTC_MASK		0x18
+#define MTL_OP_MODE_RTC_SHIFT		3
+
+#define MTL_OP_MODE_RTC_32		(1 << MTL_OP_MODE_RTC_SHIFT)
+#define MTL_OP_MODE_RTC_64		0
+#define MTL_OP_MODE_RTC_96		(2 << MTL_OP_MODE_RTC_SHIFT)
+#define MTL_OP_MODE_RTC_128		(3 << MTL_OP_MODE_RTC_SHIFT)
+
+/*  MTL debug */
+#define MTL_DEBUG_TXSTSFSTS		BIT(5)
+#define MTL_DEBUG_TXFSTS		BIT(4)
+#define MTL_DEBUG_TWCSTS		BIT(3)
+
+/* MTL debug: Tx FIFO Read Controller Status */
+#define MTL_DEBUG_TRCSTS_MASK		GENMASK(2, 1)
+#define MTL_DEBUG_TRCSTS_SHIFT		1
+#define MTL_DEBUG_TRCSTS_IDLE		0
+#define MTL_DEBUG_TRCSTS_READ		1
+#define MTL_DEBUG_TRCSTS_TXW		2
+#define MTL_DEBUG_TRCSTS_WRITE		3
+#define MTL_DEBUG_TXPAUSED		BIT(0)
+
+/* MAC debug: GMII or MII Transmit Protocol Engine Status */
+#define MTL_DEBUG_RXFSTS_MASK		GENMASK(5, 4)
+#define MTL_DEBUG_RXFSTS_SHIFT		4
+#define MTL_DEBUG_RXFSTS_EMPTY		0
+#define MTL_DEBUG_RXFSTS_BT		1
+#define MTL_DEBUG_RXFSTS_AT		2
+#define MTL_DEBUG_RXFSTS_FULL		3
+#define MTL_DEBUG_RRCSTS_MASK		GENMASK(2, 1)
+#define MTL_DEBUG_RRCSTS_SHIFT		1
+#define MTL_DEBUG_RRCSTS_IDLE		0
+#define MTL_DEBUG_RRCSTS_RDATA		1
+#define MTL_DEBUG_RRCSTS_RSTAT		2
+#define MTL_DEBUG_RRCSTS_FLUSH		3
+#define MTL_DEBUG_RWCSTS		BIT(0)
+
+/*  MTL interrupt */
+#define MTL_RX_OVERFLOW_INT_EN		BIT(24)
+#define MTL_RX_OVERFLOW_INT		BIT(16)
+
+/* Default operating mode of the MAC */
+#define GMAC_CORE_INIT (GMAC_CONFIG_JD | GMAC_CONFIG_PS | GMAC_CONFIG_ACS | \
+			GMAC_CONFIG_BE | GMAC_CONFIG_DCRS)
+
+/* To dump the core regs excluding  the Address Registers */
+#define	GMAC_REG_NUM	132
+
+#endif /* __DWMAC4_H__ */