Commit 47dd7a54 authored by Giuseppe Cavallaro's avatar Giuseppe Cavallaro Committed by David S. Miller

net: add support for STMicroelectronics Ethernet controllers.

This is the driver for the ST MAC 10/100/1000 on-chip Ethernet
controllers (Synopsys IP blocks).

Driver documentation:
 o http://stlinux.com/drupal/kernel/network/stmmac
Revisions:
 o http://stlinux.com/drupal/kernel/network/stmmac-driver-revisions
Performances:
 o http://stlinux.com/drupal/benchmarks/networking/stmmacSigned-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 47a01a0c
...@@ -2483,6 +2483,8 @@ config S6GMAC ...@@ -2483,6 +2483,8 @@ config S6GMAC
To compile this driver as a module, choose M here. The module To compile this driver as a module, choose M here. The module
will be called s6gmac. will be called s6gmac.
source "drivers/net/stmmac/Kconfig"
endif # NETDEV_1000 endif # NETDEV_1000
# #
......
...@@ -100,6 +100,7 @@ obj-$(CONFIG_VIA_VELOCITY) += via-velocity.o ...@@ -100,6 +100,7 @@ obj-$(CONFIG_VIA_VELOCITY) += via-velocity.o
obj-$(CONFIG_ADAPTEC_STARFIRE) += starfire.o obj-$(CONFIG_ADAPTEC_STARFIRE) += starfire.o
obj-$(CONFIG_RIONET) += rionet.o obj-$(CONFIG_RIONET) += rionet.o
obj-$(CONFIG_SH_ETH) += sh_eth.o obj-$(CONFIG_SH_ETH) += sh_eth.o
obj-$(CONFIG_STMMAC_ETH) += stmmac/
# #
# end link order section # end link order section
......
config STMMAC_ETH
tristate "STMicroelectronics 10/100/1000 Ethernet driver"
select MII
select PHYLIB
depends on NETDEVICES && CPU_SUBTYPE_ST40
help
This is the driver for the ST MAC 10/100/1000 on-chip Ethernet
controllers. ST Ethernet IPs are built around a Synopsys IP Core.
if STMMAC_ETH
config STMMAC_DA
bool "STMMAC DMA arbitration scheme"
default n
help
Selecting this option, rx has priority over Tx (only for Giga
Ethernet device).
By default, the DMA arbitration scheme is based on Round-robin
(rx:tx priority is 1:1).
config STMMAC_DUAL_MAC
bool "STMMAC: dual mac support (EXPERIMENTAL)"
default n
depends on EXPERIMENTAL && STMMAC_ETH && !STMMAC_TIMER
help
Some ST SoCs (for example the stx7141 and stx7200c2) have two
Ethernet Controllers. This option turns on the second Ethernet
device on this kind of platforms.
config STMMAC_TIMER
bool "STMMAC Timer optimisation"
default n
help
Use an external timer for mitigating the number of network
interrupts.
choice
prompt "Select Timer device"
depends on STMMAC_TIMER
config STMMAC_TMU_TIMER
bool "TMU channel 2"
depends on CPU_SH4
help
config STMMAC_RTC_TIMER
bool "Real time clock"
depends on RTC_CLASS
help
endchoice
endif
obj-$(CONFIG_STMMAC_ETH) += stmmac.o
stmmac-$(CONFIG_STMMAC_TIMER) += stmmac_timer.o
stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o \
mac100.o gmac.o $(stmmac-y)
This diff is collapsed.
/*******************************************************************************
Header File to describe the DMA descriptors
Use enhanced descriptors in case of GMAC Cores.
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>
*******************************************************************************/
struct dma_desc {
/* Receive descriptor */
union {
struct {
/* RDES0 */
u32 reserved1:1;
u32 crc_error:1;
u32 dribbling:1;
u32 mii_error:1;
u32 receive_watchdog:1;
u32 frame_type:1;
u32 collision:1;
u32 frame_too_long:1;
u32 last_descriptor:1;
u32 first_descriptor:1;
u32 multicast_frame:1;
u32 run_frame:1;
u32 length_error:1;
u32 partial_frame_error:1;
u32 descriptor_error:1;
u32 error_summary:1;
u32 frame_length:14;
u32 filtering_fail:1;
u32 own:1;
/* RDES1 */
u32 buffer1_size:11;
u32 buffer2_size:11;
u32 reserved2:2;
u32 second_address_chained:1;
u32 end_ring:1;
u32 reserved3:5;
u32 disable_ic:1;
} rx;
struct {
/* RDES0 */
u32 payload_csum_error:1;
u32 crc_error:1;
u32 dribbling:1;
u32 error_gmii:1;
u32 receive_watchdog:1;
u32 frame_type:1;
u32 late_collision:1;
u32 ipc_csum_error:1;
u32 last_descriptor:1;
u32 first_descriptor:1;
u32 vlan_tag:1;
u32 overflow_error:1;
u32 length_error:1;
u32 sa_filter_fail:1;
u32 descriptor_error:1;
u32 error_summary:1;
u32 frame_length:14;
u32 da_filter_fail:1;
u32 own:1;
/* RDES1 */
u32 buffer1_size:13;
u32 reserved1:1;
u32 second_address_chained:1;
u32 end_ring:1;
u32 buffer2_size:13;
u32 reserved2:2;
u32 disable_ic:1;
} erx; /* -- enhanced -- */
/* Transmit descriptor */
struct {
/* TDES0 */
u32 deferred:1;
u32 underflow_error:1;
u32 excessive_deferral:1;
u32 collision_count:4;
u32 heartbeat_fail:1;
u32 excessive_collisions:1;
u32 late_collision:1;
u32 no_carrier:1;
u32 loss_carrier:1;
u32 reserved1:3;
u32 error_summary:1;
u32 reserved2:15;
u32 own:1;
/* TDES1 */
u32 buffer1_size:11;
u32 buffer2_size:11;
u32 reserved3:1;
u32 disable_padding:1;
u32 second_address_chained:1;
u32 end_ring:1;
u32 crc_disable:1;
u32 reserved4:2;
u32 first_segment:1;
u32 last_segment:1;
u32 interrupt:1;
} tx;
struct {
/* TDES0 */
u32 deferred:1;
u32 underflow_error:1;
u32 excessive_deferral:1;
u32 collision_count:4;
u32 vlan_frame:1;
u32 excessive_collisions:1;
u32 late_collision:1;
u32 no_carrier:1;
u32 loss_carrier:1;
u32 payload_error:1;
u32 frame_flushed:1;
u32 jabber_timeout:1;
u32 error_summary:1;
u32 ip_header_error:1;
u32 time_stamp_status:1;
u32 reserved1:2;
u32 second_address_chained:1;
u32 end_ring:1;
u32 checksum_insertion:2;
u32 reserved2:1;
u32 time_stamp_enable:1;
u32 disable_padding:1;
u32 crc_disable:1;
u32 first_segment:1;
u32 last_segment:1;
u32 interrupt:1;
u32 own:1;
/* TDES1 */
u32 buffer1_size:13;
u32 reserved3:3;
u32 buffer2_size:13;
u32 reserved4:3;
} etx; /* -- enhanced -- */
} des01;
unsigned int des2;
unsigned int des3;
};
/* Transmit checksum insertion control */
enum tdes_csum_insertion {
cic_disabled = 0, /* Checksum Insertion Control */
cic_only_ip = 1, /* Only IP header */
cic_no_pseudoheader = 2, /* IP header but pseudoheader
* is not calculated */
cic_full = 3, /* IP header and pseudoheader */
};
This diff is collapsed.
/*******************************************************************************
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>
*******************************************************************************/
#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 gmac_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 */
/* Theshold 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,
};
/* Theshold 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
This diff is collapsed.
/*******************************************************************************
MAC 10/100 Header File
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>
*******************************************************************************/
/*----------------------------------------------------------------------------
* MAC BLOCK defines
*---------------------------------------------------------------------------*/
/* MAC CSR offset */
#define MAC_CONTROL 0x00000000 /* MAC Control */
#define MAC_ADDR_HIGH 0x00000004 /* MAC Address High */
#define MAC_ADDR_LOW 0x00000008 /* MAC Address Low */
#define MAC_HASH_HIGH 0x0000000c /* Multicast Hash Table High */
#define MAC_HASH_LOW 0x00000010 /* Multicast Hash Table Low */
#define MAC_MII_ADDR 0x00000014 /* MII Address */
#define MAC_MII_DATA 0x00000018 /* MII Data */
#define MAC_FLOW_CTRL 0x0000001c /* Flow Control */
#define MAC_VLAN1 0x00000020 /* VLAN1 Tag */
#define MAC_VLAN2 0x00000024 /* VLAN2 Tag */
/* MAC CTRL defines */
#define MAC_CONTROL_RA 0x80000000 /* Receive All Mode */
#define MAC_CONTROL_BLE 0x40000000 /* Endian Mode */
#define MAC_CONTROL_HBD 0x10000000 /* Heartbeat Disable */
#define MAC_CONTROL_PS 0x08000000 /* Port Select */
#define MAC_CONTROL_DRO 0x00800000 /* Disable Receive Own */
#define MAC_CONTROL_EXT_LOOPBACK 0x00400000 /* Reserved (ext loopback?) */
#define MAC_CONTROL_OM 0x00200000 /* Loopback Operating Mode */
#define MAC_CONTROL_F 0x00100000 /* Full Duplex Mode */
#define MAC_CONTROL_PM 0x00080000 /* Pass All Multicast */
#define MAC_CONTROL_PR 0x00040000 /* Promiscuous Mode */
#define MAC_CONTROL_IF 0x00020000 /* Inverse Filtering */
#define MAC_CONTROL_PB 0x00010000 /* Pass Bad Frames */
#define MAC_CONTROL_HO 0x00008000 /* Hash Only Filtering Mode */
#define MAC_CONTROL_HP 0x00002000 /* Hash/Perfect Filtering Mode */
#define MAC_CONTROL_LCC 0x00001000 /* Late Collision Control */
#define MAC_CONTROL_DBF 0x00000800 /* Disable Broadcast Frames */
#define MAC_CONTROL_DRTY 0x00000400 /* Disable Retry */
#define MAC_CONTROL_ASTP 0x00000100 /* Automatic Pad Stripping */
#define MAC_CONTROL_BOLMT_10 0x00000000 /* Back Off Limit 10 */
#define MAC_CONTROL_BOLMT_8 0x00000040 /* Back Off Limit 8 */
#define MAC_CONTROL_BOLMT_4 0x00000080 /* Back Off Limit 4 */
#define MAC_CONTROL_BOLMT_1 0x000000c0 /* Back Off Limit 1 */
#define MAC_CONTROL_DC 0x00000020 /* Deferral Check */
#define MAC_CONTROL_TE 0x00000008 /* Transmitter Enable */
#define MAC_CONTROL_RE 0x00000004 /* Receiver Enable */
#define MAC_CORE_INIT (MAC_CONTROL_HBD | MAC_CONTROL_ASTP)
/* MAC FLOW CTRL defines */
#define MAC_FLOW_CTRL_PT_MASK 0xffff0000 /* Pause Time Mask */
#define MAC_FLOW_CTRL_PT_SHIFT 16
#define MAC_FLOW_CTRL_PASS 0x00000004 /* Pass Control Frames */
#define MAC_FLOW_CTRL_ENABLE 0x00000002 /* Flow Control Enable */
#define MAC_FLOW_CTRL_PAUSE 0x00000001 /* Flow Control Busy ... */
/* MII ADDR defines */
#define MAC_MII_ADDR_WRITE 0x00000002 /* MII Write */
#define MAC_MII_ADDR_BUSY 0x00000001 /* MII Busy */
/*----------------------------------------------------------------------------
* DMA BLOCK defines
*---------------------------------------------------------------------------*/
/* DMA Bus Mode register defines */
#define DMA_BUS_MODE_DBO 0x00100000 /* Descriptor Byte Ordering */
#define DMA_BUS_MODE_BLE 0x00000080 /* Big Endian/Little Endian */
#define DMA_BUS_MODE_PBL_MASK 0x00003f00 /* Programmable Burst Len */
#define DMA_BUS_MODE_PBL_SHIFT 8
#define DMA_BUS_MODE_DSL_MASK 0x0000007c /* Descriptor Skip Length */
#define DMA_BUS_MODE_DSL_SHIFT 2 /* (in DWORDS) */
#define DMA_BUS_MODE_BAR_BUS 0x00000002 /* Bar-Bus Arbitration */
#define DMA_BUS_MODE_SFT_RESET 0x00000001 /* Software Reset */
#define DMA_BUS_MODE_DEFAULT 0x00000000
/* DMA Control register defines */
#define DMA_CONTROL_SF 0x00200000 /* Store And Forward */
/* Transmit Threshold Control */
enum ttc_control {
DMA_CONTROL_TTC_DEFAULT = 0x00000000, /* Threshold is 32 DWORDS */
DMA_CONTROL_TTC_64 = 0x00004000, /* Threshold is 64 DWORDS */
DMA_CONTROL_TTC_128 = 0x00008000, /* Threshold is 128 DWORDS */
DMA_CONTROL_TTC_256 = 0x0000c000, /* Threshold is 256 DWORDS */
DMA_CONTROL_TTC_18 = 0x00400000, /* Threshold is 18 DWORDS */
DMA_CONTROL_TTC_24 = 0x00404000, /* Threshold is 24 DWORDS */
DMA_CONTROL_TTC_32 = 0x00408000, /* Threshold is 32 DWORDS */
DMA_CONTROL_TTC_40 = 0x0040c000, /* Threshold is 40 DWORDS */
DMA_CONTROL_SE = 0x00000008, /* Stop On Empty */
DMA_CONTROL_OSF = 0x00000004, /* Operate On 2nd Frame */
};
/* STMAC110 DMA Missed Frame Counter register defines */
#define DMA_MISSED_FRAME_OVE 0x10000000 /* FIFO Overflow Overflow */
#define DMA_MISSED_FRAME_OVE_CNTR 0x0ffe0000 /* Overflow Frame Counter */
#define DMA_MISSED_FRAME_OVE_M 0x00010000 /* Missed Frame Overflow */
#define DMA_MISSED_FRAME_M_CNTR 0x0000ffff /* Missed Frame Couinter */
/*******************************************************************************
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>
*******************************************************************************/
#define DRV_MODULE_VERSION "Oct_09"
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
#define STMMAC_VLAN_TAG_USED
#include <linux/if_vlan.h>
#endif
#include "common.h"
#ifdef CONFIG_STMMAC_TIMER
#include "stmmac_timer.h"
#endif
struct stmmac_priv {
/* Frequently used values are kept adjacent for cache effect */
struct dma_desc *dma_tx ____cacheline_aligned;
dma_addr_t dma_tx_phy;
struct sk_buff **tx_skbuff;
unsigned int cur_tx;
unsigned int dirty_tx;
unsigned int dma_tx_size;
int tx_coe;
int tx_coalesce;
struct dma_desc *dma_rx ;
unsigned int cur_rx;
unsigned int dirty_rx;
struct sk_buff **rx_skbuff;
dma_addr_t *rx_skbuff_dma;
struct sk_buff_head rx_recycle;
struct net_device *dev;
int is_gmac;
dma_addr_t dma_rx_phy;
unsigned int dma_rx_size;
int rx_csum;
unsigned int dma_buf_sz;
struct device *device;
struct mac_device_info *mac_type;
struct stmmac_extra_stats xstats;
struct napi_struct napi;
phy_interface_t phy_interface;
int pbl;
int bus_id;
int phy_addr;
int phy_mask;
int (*phy_reset) (void *priv);
void (*fix_mac_speed) (void *priv, unsigned int speed);
void *bsp_priv;
int phy_irq;
struct phy_device *phydev;
int oldlink;
int speed;
int oldduplex;
unsigned int flow_ctrl;
unsigned int pause;
struct mii_bus *mii;
u32 msg_enable;
spinlock_t lock;
int wolopts;
int wolenabled;
int shutdown;
#ifdef CONFIG_STMMAC_TIMER
struct stmmac_timer *tm;
#endif
#ifdef STMMAC_VLAN_TAG_USED
struct vlan_group *vlgrp;
#endif
};
extern int stmmac_mdio_unregister(struct net_device *ndev);
extern int stmmac_mdio_register(struct net_device *ndev);
extern void stmmac_set_ethtool_ops(struct net_device *netdev);
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/*******************************************************************************
STMMAC external timer support.
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/kernel.h>
#include <linux/etherdevice.h>
#include "stmmac_timer.h"
static void stmmac_timer_handler(void *data)
{
struct net_device *dev = (struct net_device *)data;
stmmac_schedule(dev);
return;
}
#define STMMAC_TIMER_MSG(timer, freq) \
printk(KERN_INFO "stmmac_timer: %s Timer ON (freq %dHz)\n", timer, freq);
#if defined(CONFIG_STMMAC_RTC_TIMER)
#include <linux/rtc.h>
static struct rtc_device *stmmac_rtc;
static rtc_task_t stmmac_task;
static void stmmac_rtc_start(unsigned int new_freq)
{
rtc_irq_set_freq(stmmac_rtc, &stmmac_task, new_freq);
rtc_irq_set_state(stmmac_rtc, &stmmac_task, 1);
return;
}
static void stmmac_rtc_stop(void)
{
rtc_irq_set_state(stmmac_rtc, &stmmac_task, 0);
return;
}
int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
{
stmmac_task.private_data = dev;
stmmac_task.func = stmmac_timer_handler;
stmmac_rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
if (stmmac_rtc == NULL) {
pr_error("open rtc device failed\n");
return -ENODEV;
}
rtc_irq_register(stmmac_rtc, &stmmac_task);
/* Periodic mode is not supported */
if ((rtc_irq_set_freq(stmmac_rtc, &stmmac_task, tm->freq) < 0)) {
pr_error("set periodic failed\n");
rtc_irq_unregister(stmmac_rtc, &stmmac_task);
rtc_class_close(stmmac_rtc);
return -1;
}
STMMAC_TIMER_MSG(CONFIG_RTC_HCTOSYS_DEVICE, tm->freq);
tm->timer_start = stmmac_rtc_start;
tm->timer_stop = stmmac_rtc_stop;
return 0;
}
int stmmac_close_ext_timer(void)
{
rtc_irq_set_state(stmmac_rtc, &stmmac_task, 0);
rtc_irq_unregister(stmmac_rtc, &stmmac_task);
rtc_class_close(stmmac_rtc);
return 0;
}
#elif defined(CONFIG_STMMAC_TMU_TIMER)
#include <linux/clk.h>
#define TMU_CHANNEL "tmu2_clk"
static struct clk *timer_clock;
static void stmmac_tmu_start(unsigned int new_freq)
{
clk_set_rate(timer_clock, new_freq);
clk_enable(timer_clock);
return;
}
static void stmmac_tmu_stop(void)
{
clk_disable(timer_clock);
return;
}
int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
{
timer_clock = clk_get(NULL, TMU_CHANNEL);
if (timer_clock == NULL)
return -1;
if (tmu2_register_user(stmmac_timer_handler, (void *)dev) < 0) {
timer_clock = NULL;
return -1;
}
STMMAC_TIMER_MSG("TMU2", tm->freq);
tm->timer_start = stmmac_tmu_start;
tm->timer_stop = stmmac_tmu_stop;
return 0;
}
int stmmac_close_ext_timer(void)
{
clk_disable(timer_clock);
tmu2_unregister_user();
clk_put(timer_clock);
return 0;
}
#endif
/*******************************************************************************
STMMAC external timer Header File.
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>
*******************************************************************************/
struct stmmac_timer {
void (*timer_start) (unsigned int new_freq);
void (*timer_stop) (void);
unsigned int freq;
};
/* Open the HW timer device and return 0 in case of success */
int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm);
/* Stop the timer and release it */
int stmmac_close_ext_timer(void);
/* Function used for scheduling task within the stmmac */
void stmmac_schedule(struct net_device *dev);
#if defined(CONFIG_STMMAC_TMU_TIMER)
extern int tmu2_register_user(void *fnt, void *data);
extern void tmu2_unregister_user(void);
#endif
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