[U-Boot] [PATCH 3/3] i.mx6q: arm2: Add the enet function support

[Stefano Babic]

On 13/12/2011 14:44, Jason Liu wrote:
> This enable the network function on the i.mx6q armadillo2
> board(arm2), thus we can use tftp to load image from network.
> 
> Cc: Stefano Babic <sbabic at denx.de>
> Signed-off-by: Jason Liu <jason.hui at linaro.org>
> Tested-by: Dirk Behme <dirk.behme at de.bosch.com>
> ---
>  board/freescale/mx6qarm2/mx6qarm2.c |   90 +++++++++++++++++++++++++++++++++++
>  include/configs/mx6qarm2.h          |   13 ++++-
>  2 files changed, 101 insertions(+), 2 deletions(-)
> 

Hi Jason,

only a couple of minor issues.

> +
>  #ifdef CONFIG_FSL_ESDHC
>  struct fsl_esdhc_cfg usdhc_cfg[2] = {
>  	{USDHC3_BASE_ADDR, 1},
> @@ -132,9 +162,69 @@ int board_mmc_init(bd_t *bis)
>  }
>  #endif
>  
> +#define MII_MMD_ACCESS_CTRL_REG		0xd
> +#define MII_MMD_ACCESS_ADDR_DATA_REG	0xe
> +#define MII_DBG_PORT_REG		0x1d
> +#define MII_DBG_PORT2_REG		0x1e
> +
> +int fecmxc_mii_postcall(int phy)
> +{
> +	unsigned short val;
> +
> +	/*
> +	 * Due to the i.MX6Q Armadillo2 board HW design,there is
> +	 * no 125Mhz clock input from SOC. In order to use RGMII,
> +	 * We need enable AR8031 ouput a 125MHz clk from CLK_25M
> +	 */
> +	miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7);
> +	miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016);
> +	miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007);
> +	miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val);
> +	val &= 0xffe3;
> +	val |= 0x18;
> +	miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val);
> +
> +	/* For the RGMII phy, we need enable tx clock delay */
> +	miiphy_write("FEC", phy, 0x1d, 0x5);

You define MII_DBG_PORT_REG, but then you do not use it.

> +	miiphy_read("FEC", phy, 0x1e, &val);

The same here for MII_DBG_PORT2_REG. Can you also defines some constants
for the value you are setting (tx clock delay, etc.).

> diff --git a/include/configs/mx6qarm2.h b/include/configs/mx6qarm2.h
> index a7b363d..3a30679 100644
> --- a/include/configs/mx6qarm2.h
> +++ b/include/configs/mx6qarm2.h
> @@ -56,6 +56,17 @@
>  #define CONFIG_CMD_FAT
>  #define CONFIG_DOS_PARTITION
>  
> +#define CONFIG_CMD_PING
> +#define CONFIG_CMD_DHCP
> +#define CONFIG_CMD_MII
> +#define CONFIG_CMD_NET
> +#define	CONFIG_FEC_MXC
> +#define	CONFIG_MII
> +#define IMX_FEC_BASE			ENET_BASE_ADDR
> +#define	CONFIG_FEC_XCV_TYPE		RGMII
> +#define CONFIG_ETHPRIME			"FEC"

I have not thought this is needed. I see only one controller.

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de
=====================================================================