[U-Boot] [uboot] [PATCH 2/2] net: phy: ti: Allow the driver to be more configurable

[Michal Simek <monstr@monstr.eu>]

On 5.4.2016 19:18, Dan Murphy wrote:
> Michal
> 
> On 04/05/2016 12:01 PM, Michal Simek wrote:
>> On 5.4.2016 17:05, Dan Murphy wrote:
>>> Not all devices use the same internal delay or fifo depth.
>>> Add the ability to set the internal delay for rx or tx and the
>>> fifo depth via the devicetree.  If the value is not set in the
>>> devicetree then set the delay to the default.
>>>
>>> If devicetree is not used then use the default defines within the
>>> driver.
>>>
>>> Signed-off-by: Dan Murphy <dmurphy@ti.com>
>>> ---
>>>
>>> RFC->v1 - Added devicetree support - https://patchwork.ozlabs.org/patch/604113/
>>>
>>>  drivers/net/phy/ti.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++------
>>>  1 file changed, 73 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c
>>> index c3912d5..e91a6ed 100644
>>> --- a/drivers/net/phy/ti.c
>>> +++ b/drivers/net/phy/ti.c
>>> @@ -6,6 +6,14 @@
>>>   */
>>>  #include <common.h>
>>>  #include <phy.h>
>>> +#include <linux/compat.h>
>>> +#include <malloc.h>
>>> +
>>> +#include <fdtdec.h>
>>> +#include <dm.h>
>>> +#include <dt-bindings/net/ti-dp83867.h>
>>> +
>>> +DECLARE_GLOBAL_DATA_PTR;
>>>  
>>>  /* TI DP83867 */
>>>  #define DP83867_DEVADDR		0x1f
>>> @@ -57,6 +65,17 @@
>>>  #define MII_MMD_CTRL_INCR_RDWT	0x8000 /* post increment on reads & writes */
>>>  #define MII_MMD_CTRL_INCR_ON_WT	0xC000 /* post increment on writes only */
>>>  
>>> +/* User setting - can be taken from DTS */
>>> +#define DEFAULT_RX_ID_DELAY	DP83867_RGMIIDCTL_2_25_NS
>>> +#define DEFAULT_TX_ID_DELAY	DP83867_RGMIIDCTL_2_75_NS
>>> +#define DEFAULT_FIFO_DEPTH	DP83867_PHYCR_FIFO_DEPTH_4_B_NIB
>>> +
>>> +struct dp83867_private {
>>> +	int rx_id_delay;
>>> +	int tx_id_delay;
>>> +	int fifo_depth;
>>> +};
>>> +
>>>  /**
>>>   * phy_read_mmd_indirect - reads data from the MMD registers
>>>   * @phydev: The PHY device bus
>>> @@ -134,16 +153,58 @@ static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
>>>  		phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
>>>  }
>>>  
>>> -/* User setting - can be taken from DTS */
>>> -#define RX_ID_DELAY	8
>>> -#define TX_ID_DELAY	0xa
>>> -#define FIFO_DEPTH	1
>>> +#if defined(CONFIG_DM_ETH)
>>> +/**
>>> + * dp83867_data_init - Convenience function for setting PHY specific data
>>> + *
>>> + * @phydev: the phy_device struct
>>> + */
>>> +static int dp83867_of_init(struct phy_device *phydev)
>>> +{
>>> +	struct dp83867_private *dp83867 = phydev->priv;
>>> +	struct udevice *dev = phydev->dev;
>>> +
>>> +	dp83867->rx_id_delay = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
>>> +				 "ti,rx_int_delay", DEFAULT_RX_ID_DELAY);
>>> +
>>> +	dp83867->tx_id_delay = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
>>> +				 "ti,tx_int_delay", DEFAULT_TX_ID_DELAY);
>>> +
>> this is not aligned with the binding you sent.
>> ti,rx-internal-delay
>> and
>> ti,tx-internal-delay
> 
> You are right I will fix it and then make the same change in the kernel

Why not just follow linux binding?
Changing binding in kernel will end up in deprecated binding for nothing.

Thanks,
Michal


-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform


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