stmmac: rename the gmac as dwmac1000 and split core and dma parts

Use dwmac1000 naming instead of gmac.
The patch also splits the gmac.c file in two new ones:
dwmac1000_core.c and dwmac1000_dma.c.
This could actually help on some architectures where different
DMA engines are used.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 221 insertions, 0 deletions

diff --git a/drivers/net/stmmac/dwmac1000.h b/drivers/net/stmmac/dwmac1000.h
new file mode 100644
index 000000000000..3d54d6c99129
--- /dev/null
+++ b/drivers/net/stmmac/dwmac1000.h
@@ -0,0 +1,221 @@
+/*******************************************************************************
+  Copyright (C) 2007-2009  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.
+
+  This program is distributed in the hope 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.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+*******************************************************************************/
+
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include "common.h"
+
+#define GMAC_CONTROL		0x00000000	/* Configuration */
+#define GMAC_FRAME_FILTER	0x00000004	/* Frame Filter */
+#define GMAC_HASH_HIGH		0x00000008	/* Multicast Hash Table High */
+#define GMAC_HASH_LOW		0x0000000c	/* Multicast Hash Table Low */
+#define GMAC_MII_ADDR		0x00000010	/* MII Address */
+#define GMAC_MII_DATA		0x00000014	/* MII Data */
+#define GMAC_FLOW_CTRL		0x00000018	/* Flow Control */
+#define GMAC_VLAN_TAG		0x0000001c	/* VLAN Tag */
+#define GMAC_VERSION		0x00000020	/* GMAC CORE Version */
+#define GMAC_WAKEUP_FILTER	0x00000028	/* Wake-up Frame Filter */
+
+#define GMAC_INT_STATUS		0x00000038	/* interrupt status register */
+enum dwmac1000_irq_status {
+	time_stamp_irq = 0x0200,
+	mmc_rx_csum_offload_irq = 0x0080,
+	mmc_tx_irq = 0x0040,
+	mmc_rx_irq = 0x0020,
+	mmc_irq = 0x0010,
+	pmt_irq = 0x0008,
+	pcs_ane_irq = 0x0004,
+	pcs_link_irq = 0x0002,
+	rgmii_irq = 0x0001,
+};
+#define GMAC_INT_MASK		0x0000003c	/* interrupt mask register */
+
+/* PMT Control and Status */
+#define GMAC_PMT		0x0000002c
+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,
+};
+
+/* GMAC HW ADDR regs */
+#define GMAC_ADDR_HIGH(reg)		(0x00000040+(reg * 8))
+#define GMAC_ADDR_LOW(reg)		(0x00000044+(reg * 8))
+#define GMAC_MAX_UNICAST_ADDRESSES	16
+
+#define GMAC_AN_CTRL	0x000000c0	/* AN control */
+#define GMAC_AN_STATUS	0x000000c4	/* AN status */
+#define GMAC_ANE_ADV	0x000000c8	/* Auto-Neg. Advertisement */
+#define GMAC_ANE_LINK	0x000000cc	/* Auto-Neg. link partener ability */
+#define GMAC_ANE_EXP	0x000000d0	/* ANE expansion */
+#define GMAC_TBI	0x000000d4	/* TBI extend status */
+#define GMAC_GMII_STATUS 0x000000d8	/* S/R-GMII status */
+
+/* GMAC Configuration defines */
+#define GMAC_CONTROL_TC	0x01000000	/* Transmit Conf. in RGMII/SGMII */
+#define GMAC_CONTROL_WD	0x00800000	/* Disable Watchdog on receive */
+#define GMAC_CONTROL_JD	0x00400000	/* Jabber disable */
+#define GMAC_CONTROL_BE	0x00200000	/* Frame Burst Enable */
+#define GMAC_CONTROL_JE	0x00100000	/* Jumbo frame */
+enum inter_frame_gap {
+	GMAC_CONTROL_IFG_88 = 0x00040000,
+	GMAC_CONTROL_IFG_80 = 0x00020000,
+	GMAC_CONTROL_IFG_40 = 0x000e0000,
+};
+#define GMAC_CONTROL_DCRS	0x00010000 /* Disable carrier sense during tx */
+#define GMAC_CONTROL_PS		0x00008000 /* Port Select 0:GMI 1:MII */
+#define GMAC_CONTROL_FES	0x00004000 /* Speed 0:10 1:100 */
+#define GMAC_CONTROL_DO		0x00002000 /* Disable Rx Own */
+#define GMAC_CONTROL_LM		0x00001000 /* Loop-back mode */
+#define GMAC_CONTROL_DM		0x00000800 /* Duplex Mode */
+#define GMAC_CONTROL_IPC	0x00000400 /* Checksum Offload */
+#define GMAC_CONTROL_DR		0x00000200 /* Disable Retry */
+#define GMAC_CONTROL_LUD	0x00000100 /* Link up/down */
+#define GMAC_CONTROL_ACS	0x00000080 /* Automatic Pad Stripping */
+#define GMAC_CONTROL_DC		0x00000010 /* Deferral Check */
+#define GMAC_CONTROL_TE		0x00000008 /* Transmitter Enable */
+#define GMAC_CONTROL_RE		0x00000004 /* Receiver Enable */
+
+#define GMAC_CORE_INIT (GMAC_CONTROL_JD | GMAC_CONTROL_PS | GMAC_CONTROL_ACS | \
+			GMAC_CONTROL_IPC | GMAC_CONTROL_JE | GMAC_CONTROL_BE)
+
+/* GMAC Frame Filter defines */
+#define GMAC_FRAME_FILTER_PR	0x00000001	/* Promiscuous Mode */
+#define GMAC_FRAME_FILTER_HUC	0x00000002	/* Hash Unicast */
+#define GMAC_FRAME_FILTER_HMC	0x00000004	/* Hash Multicast */
+#define GMAC_FRAME_FILTER_DAIF	0x00000008	/* DA Inverse Filtering */
+#define GMAC_FRAME_FILTER_PM	0x00000010	/* Pass all multicast */
+#define GMAC_FRAME_FILTER_DBF	0x00000020	/* Disable Broadcast frames */
+#define GMAC_FRAME_FILTER_SAIF	0x00000100	/* Inverse Filtering */
+#define GMAC_FRAME_FILTER_SAF	0x00000200	/* Source Address Filter */
+#define GMAC_FRAME_FILTER_HPF	0x00000400	/* Hash or perfect Filter */
+#define GMAC_FRAME_FILTER_RA	0x80000000	/* Receive all mode */
+/* GMII ADDR  defines */
+#define GMAC_MII_ADDR_WRITE	0x00000002	/* MII Write */
+#define GMAC_MII_ADDR_BUSY	0x00000001	/* MII Busy */
+/* GMAC FLOW CTRL defines */
+#define GMAC_FLOW_CTRL_PT_MASK	0xffff0000	/* Pause Time Mask */
+#define GMAC_FLOW_CTRL_PT_SHIFT	16
+#define GMAC_FLOW_CTRL_RFE	0x00000004	/* Rx Flow Control Enable */
+#define GMAC_FLOW_CTRL_TFE	0x00000002	/* Tx Flow Control Enable */
+#define GMAC_FLOW_CTRL_FCB_BPA	0x00000001	/* Flow Control Busy ... */
+
+/*--- DMA BLOCK defines ---*/
+/* DMA Bus Mode register defines */
+#define DMA_BUS_MODE_SFT_RESET	0x00000001	/* Software Reset */
+#define DMA_BUS_MODE_DA		0x00000002	/* Arbitration scheme */
+#define DMA_BUS_MODE_DSL_MASK	0x0000007c	/* Descriptor Skip Length */
+#define DMA_BUS_MODE_DSL_SHIFT	2	/*   (in DWORDS)      */
+/* Programmable burst length (passed thorugh platform)*/
+#define DMA_BUS_MODE_PBL_MASK	0x00003f00	/* Programmable Burst Len */
+#define DMA_BUS_MODE_PBL_SHIFT	8
+
+enum rx_tx_priority_ratio {
+	double_ratio = 0x00004000,	/*2:1 */
+	triple_ratio = 0x00008000,	/*3:1 */
+	quadruple_ratio = 0x0000c000,	/*4:1 */
+};
+
+#define DMA_BUS_MODE_FB		0x00010000	/* Fixed burst */
+#define DMA_BUS_MODE_RPBL_MASK	0x003e0000	/* Rx-Programmable Burst Len */
+#define DMA_BUS_MODE_RPBL_SHIFT	17
+#define DMA_BUS_MODE_USP	0x00800000
+#define DMA_BUS_MODE_4PBL	0x01000000
+#define DMA_BUS_MODE_AAL	0x02000000
+
+/* DMA CRS Control and Status Register Mapping */
+#define DMA_HOST_TX_DESC	  0x00001048	/* Current Host Tx descriptor */
+#define DMA_HOST_RX_DESC	  0x0000104c	/* Current Host Rx descriptor */
+/*  DMA Bus Mode register defines */
+#define DMA_BUS_PR_RATIO_MASK	  0x0000c000	/* Rx/Tx priority ratio */
+#define DMA_BUS_PR_RATIO_SHIFT	  14
+#define DMA_BUS_FB	  	  0x00010000	/* Fixed Burst */
+
+/* DMA operation mode defines (start/stop tx/rx are placed in common header)*/
+#define DMA_CONTROL_DT		0x04000000 /* Disable Drop TCP/IP csum error */
+#define DMA_CONTROL_RSF		0x02000000 /* Receive Store and Forward */
+#define DMA_CONTROL_DFF		0x01000000 /* Disaable flushing */
+/* Threshold for Activating the FC */
+enum rfa {
+	act_full_minus_1 = 0x00800000,
+	act_full_minus_2 = 0x00800200,
+	act_full_minus_3 = 0x00800400,
+	act_full_minus_4 = 0x00800600,
+};
+/* Threshold for Deactivating the FC */
+enum rfd {
+	deac_full_minus_1 = 0x00400000,
+	deac_full_minus_2 = 0x00400800,
+	deac_full_minus_3 = 0x00401000,
+	deac_full_minus_4 = 0x00401800,
+};
+#define DMA_CONTROL_TSF		0x00200000 /* Transmit  Store and Forward */
+#define DMA_CONTROL_FTF		0x00100000 /* Flush transmit FIFO */
+
+enum ttc_control {
+	DMA_CONTROL_TTC_64 = 0x00000000,
+	DMA_CONTROL_TTC_128 = 0x00004000,
+	DMA_CONTROL_TTC_192 = 0x00008000,
+	DMA_CONTROL_TTC_256 = 0x0000c000,
+	DMA_CONTROL_TTC_40 = 0x00010000,
+	DMA_CONTROL_TTC_32 = 0x00014000,
+	DMA_CONTROL_TTC_24 = 0x00018000,
+	DMA_CONTROL_TTC_16 = 0x0001c000,
+};
+#define DMA_CONTROL_TC_TX_MASK	0xfffe3fff
+
+#define DMA_CONTROL_EFC		0x00000100
+#define DMA_CONTROL_FEF		0x00000080
+#define DMA_CONTROL_FUF		0x00000040
+
+enum rtc_control {
+	DMA_CONTROL_RTC_64 = 0x00000000,
+	DMA_CONTROL_RTC_32 = 0x00000008,
+	DMA_CONTROL_RTC_96 = 0x00000010,
+	DMA_CONTROL_RTC_128 = 0x00000018,
+};
+#define DMA_CONTROL_TC_RX_MASK	0xffffffe7
+
+#define DMA_CONTROL_OSF	0x00000004	/* Operate on second frame */
+
+/* MMC registers offset */
+#define GMAC_MMC_CTRL      0x100
+#define GMAC_MMC_RX_INTR   0x104
+#define GMAC_MMC_TX_INTR   0x108
+#define GMAC_MMC_RX_CSUM_OFFLOAD   0x208
+
+#undef DWMAC1000_DEBUG
+/* #define DWMAC1000__DEBUG */
+#undef FRAME_FILTER_DEBUG
+/* #define FRAME_FILTER_DEBUG */
+#ifdef DWMAC1000__DEBUG
+#define DBG(fmt, args...)  printk(fmt, ## args)
+#else
+#define DBG(fmt, args...)  do { } while (0)
+#endif
+
+extern struct stmmac_dma_ops dwmac1000_dma_ops;
+extern struct stmmac_desc_ops dwmac1000_desc_ops;