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2016-12-08net: smmac: allow configuring lower pbl valuesNiklas Cassel1-1/+4
The driver currently always sets the PBLx8/PBLx4 bit, which means that the pbl values configured via the pbl/txpbl/rxpbl DT properties are always multiplied by 8/4 in the hardware. In order to allow the DT to configure lower pbl values, while at the same time not changing behavior of any existing device trees using the pbl/txpbl/rxpbl settings, add a property to disable the multiplication of the pbl by 8/4 in the hardware. Suggested-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net: stmmac: add support for independent DMA pbl for tx/rxNiklas Cassel1-6/+13
GMAC and newer supports independent programmable burst lengths for DMA tx/rx. Add new optional devicetree properties representing this. To be backwards compatible, snps,pbl will still be valid, but snps,txpbl/snps,rxpbl will override the value in snps,pbl if set. If the IP is synthesized to use the AXI interface, there is a register and a matching DT property inside the optional stmmac-axi-config DT node for controlling burst lengths, named snps,blen. However, using this register, it is not possible to control tx and rx independently. Also, this register is not available if the IP was synthesized with, e.g., the AHB interface. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-03stmmac: cleanup documenation, make it match realityPavel Machek1-24/+23
Fix english in documentation, make documentation match reality, remove options that were removed from code. Signed-off-by: Pavel Machek <pavel@denx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-28drivers: net: stmmac: reworking the PCS code.Giuseppe CAVALLARO1-0/+1
The 3.xx and 4.xx synopsys gmacs have a very similar PCS embedded module and they share almost the same registers: for example: AN_Control, AN_Status, AN_Advertisement, AN_Link_Partner_Ability, AN_Expansion, TBI_Extended_Status. Just the RGMII/SMII Control/Status register differs. So This patch aims to reorganize and enhance the PCS support. It removes the existent support from the dwmac1000/dwmac4_core.c moving basic PCS functions inside a new file called: stmmac_pcs.h. The patch also reviews the available APIs to be better shared among different hardware and easily enhanced to support new features. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-02Documentation: networking: update stmmacAlexandre TORGUE1-6/+38
Update stmmac driver documentation according to new GMAC 4.x family. Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-31phy: fixed_phy: Add gpio to determine link up/down.Andrew Lunn1-1/+1
An SFP module may have a link up/down status pin which can be connection to a GPIO line of the host. Add support for reading such an GPIO in the fixed_phy driver. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29stmmac: remove setup/free glue callbacksJoachim Eastwood1-6/+2
As all dwmac-* drivers have been converted to have a proper probe function the setup callback can now be removed. Also remove the free callback that wasn't used by any driver. New dwmac-* drivers should implement standard probe and remove functions to preform any needed setup and teardown. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29stmmac: remove unused stmmac_of_data structJoachim Eastwood1-2/+0
As dwmac-* drivers that need OF match have been converted to use their own internal OF match data structure this can now be removed. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20stmmac: drop custom_* fields from plat_stmmacenet_dataJoachim Eastwood1-4/+0
Both of these fields are unused and has been unused since they were added 3 and 5 years ago. Drop them since they are clearly not very useful. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-19stmmac: update driver documentationGiuseppe CAVALLARO1-67/+65
Recently many changes have been done inside the driver so this patch updates the driver's doc for example reviewing information for the rx and tx processes that are managed by napi method, adding new information for missing glue-logic files etc. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19net: stmmac: Allocate and pass soc/board specific data to callbacksChen-Yu Tsai1-4/+8
The current .init and .exit callbacks requires access to driver private data structures. This is not a good seperation and abstraction. Instead, we add a new .setup callback for allocating private data, and pass the returned pointer to the other callbacks. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-30doc:net: Fix typo in Documentation/networkingMasanari Iida1-4/+4
Correct spelling typo in Documentation/networking Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-30driver:net:stmmac: Disable DMA store and forward mode if platform data force_thresh_dma_mode is set.Sonic Zhang1-0/+3
Some synopsys ip implementation doesn't support DMA store and forward mode, such as BF60x. So, set force_thresh_dma_mode to use DMA thresholds only. Update document and devicetree as well. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08stmmac: review driver documentationGiuseppe CAVALLARO1-4/+8
This patch reviews the driver documentation file; for example, there were some new fields (in the driver module parameter section) and the ptp files were not documented. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26stmmac: update the Doc and Version (PTP+SGMII)Giuseppe CAVALLARO1-2/+31
This patch updates the stmmac.txt file adding information related to the PTP and SGMII/RGMII supports. Also the patch updates the driver version to: March_2013. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26stmmac: update the doc with new IRQ mitigationGiuseppe CAVALLARO1-13/+15
This patch updates the stmmac.txt adding some information about the new rx/tx mitigation schema adopted in the driver. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-31net:stmmac: Remove bus_id from mdio platform data.Srinivas Kandagatla1-5/+0
This patch removes bus_id from mdio platform data, The reason to remove bus_id is, stmmac mdio bus_id is always same as stmmac bus-id, so there is no point in passing this in different variable. Also stmmac ethernet driver connects to phy with bus_id passed its platform data. So, having single bus-id is much simpler. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-01stmmac: update the driver Documentation and add EEEGiuseppe CAVALLARO1-6/+30
This patch updates the stmmac's documentation adding some missing files in the section used to describe the internal driver's structure. Also the patch adds a new section to describe the EEE support. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06stmmac: update driver's docGiuseppe CAVALLARO1-19/+25
Fixed the driver's documentation that was obsolete and didn't report new platform fields (recently added). Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: MDC clock dynamically based on the csr clock inputGiuseppe CAVALLARO1-1/+1
If a specific clk_csr value is passed from the platform this means that the CSR Clock Range selection cannot be changed at run-time and it is fixed (as reported in the driver documentation). Viceversa the driver will try to set the MDC clock dynamically according to the actual clock input. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Reviewed-by: Francesco Virlinzi <francesco.virlinzi@st.com> Reviewed-by: David Laight <david.laight@aculab.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: re-work the internal GMAC DMA platf parametersDeepak SIKRI1-3/+21
This patch re-works the internal GMAC DMA parameters passed from the platform. In the past, we only passed the pbl but, with new core, other parameters can be passed and are mandatory on some platforms. New parameters are documented in stmmac.txt because this patch has an impact for many platforms. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04stmmac: Define CSUM offload engine TypesDeepak SIKRI1-0/+3
This patch explicitly defines the CSUM offload engine type which need (not mandatory) to be passed from the platform code. STMMAC core supports two check sum offload engine types- Type-1 & Type-2. Also, there are STMMAC cores that do not have the check sum offload capabilities. The behaviour of Type-1 & Type-2 cores related to provision of checksum increases the packet length for Type-1 cores by 2, as the checksum is appended at the end of data packet and the same is made accountable in the DMA status. The STMMAC cores beyond Version-3.5 provide HW interface registers which allows the user to read the HW capabilities, while to support the previous cores the information related to HW capabilities has to be provided from the platform code. The Type-1 cores which do not have the HW register interface need this information. This patch also updates the driver's doc. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Hacked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-21stmmac: update the driver's documentation (Dec-2011)Giuseppe CAVALLARO1-7/+9
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19stmmac: update the driver version and doc (V4)Giuseppe CAVALLARO1-1/+10
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-15stmmac: update the doc with new info about the driver's debug (v3)Giuseppe CAVALLARO1-1/+32
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21stmmac: improve and up-to-date the documentationGiuseppe CAVALLARO1-64/+136
This patch adds new information for the driver especially about its platform structure fields. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-12stmmac: update the driver documentationGiuseppe Cavallaro1-11/+37
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-01stmmac: add documentation for the driver.Giuseppe CAVALLARO1-0/+143
Add Documentation/networking/stmmac.txt for the stmmac network driver. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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