[U-Boot] [PATCH 07/10] mvebu: a37xx: Add init for ESPRESSBin Topaz switch

[Stefan Roese]

Hi Kosta,

On 13.02.2017 14:38, kostap at marvell.com wrote:
> From: Konstantin Porotchkin <kostap at marvell.com>
>
> Implement the board-specific network init function for
> ESPRESSOBin community board, setting the on-board Topaz
> switch port to forward mode and allow network connection
> through any of the available Etherenet ports.
>
> Signed-off-by: Konstantin Porotchkin <kostap at marvell.com>
> Cc: Stefan Roese <sr at denx.de>
> Cc: Igal Liberman <igall at marvell.com>
> ---
>  board/Marvell/mvebu_db-88f3720/board.c | 49 ++++++++++++++++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>
> diff --git a/board/Marvell/mvebu_db-88f3720/board.c b/board/Marvell/mvebu_db-88f3720/board.c
> index 3337f3f..45098ce 100644
> --- a/board/Marvell/mvebu_db-88f3720/board.c
> +++ b/board/Marvell/mvebu_db-88f3720/board.c
> @@ -6,6 +6,7 @@
>
>  #include <common.h>
>  #include <i2c.h>
> +#include <phy.h>
>  #include <asm/io.h>
>  #include <asm/arch/cpu.h>
>  #include <asm/arch/soc.h>
> @@ -156,3 +157,51 @@ int board_xhci_enable(void)
>
>  	return 0;
>  }
> +
> +static int mii_multi_chip_mode_write(struct mii_dev *bus, int dev_smi_addr,
> +				     int smi_addr, int reg, u16 value)
> +{
> +	u16 data = 0;
> +
> +	if (bus->write(bus, dev_smi_addr, 0, 1, value) != 0) {
> +		printf("Error writing to the PHY addr=%02x reg=%02x\n",
> +		       smi_addr, reg);
> +		return -EFAULT;
> +	}
> +
> +	data = (1 << 15) | (1 << 12) | (1 << 10) | (smi_addr << 5) | reg;
> +	if (bus->write(bus, dev_smi_addr, 0, 0, data) != 0) {
> +		printf("Error writing to the PHY addr=%02x reg=%02x\n",
> +		       smi_addr, reg);
> +		return -EFAULT;
> +	}
> +
> +	return 0;
> +}
> +
> +
> +int board_network_enable(struct mii_dev *bus)
> +{
> +	if (!of_machine_is_compatible("marvell,armada-3720-espressobin"))
> +		return 0;
> +
> +	/*
> +	 * FIXME: remove this code once Topaz driver gets available
> +	 * A3720 Community Board Only
> +	 * Configure Topaz switch (88E6341)
> +	 * Set port 0,1,2,3 to forwarding Mode
> +	 */

Just checking: Is this "Topaz switch driver" something thats being
worked on or in the queue to do?

> +	mii_multi_chip_mode_write(bus, 1, 16, 4, 0x7f);
> +	mii_multi_chip_mode_write(bus, 1, 17, 4, 0x7f);
> +	mii_multi_chip_mode_write(bus, 1, 18, 4, 0x7f);
> +	mii_multi_chip_mode_write(bus, 1, 19, 4, 0x7f);
> +	/* RGMII Delay on Port 0*/
> +	mii_multi_chip_mode_write(bus, 1, 16, 1, 0xe002);
> +	/* Power up PHY 1, 2, 3 */
> +	mii_multi_chip_mode_write(bus, 1, 28, 25, 0x1140);
> +	mii_multi_chip_mode_write(bus, 1, 28, 24, 0x9620);
> +	mii_multi_chip_mode_write(bus, 1, 28, 24, 0x9640);
> +	mii_multi_chip_mode_write(bus, 1, 28, 24, 0x9660);
> +
> +	return 0;
> +}
>

Thanks,
Stefan