[U-Boot] [PATCH 3/3] udoo_neo: Add Ethernet support
Stefano Babic
sbabic at denx.de
Fri Dec 16 10:23:58 CET 2016
On 06/12/2016 18:38, Breno Lima wrote:
> UDOO Neo boards has one FEC port connected to KSZ8091, add support for it.
>
> Tested on a UDOO Neo Full with "dhcp zImage" command.
>
> Signed-off-by: Breno Lima <breno.lima at nxp.com>
> ---
> board/udoo/neo/neo.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++
> configs/udoo_neo_defconfig | 2 +-
> include/configs/udoo_neo.h | 17 ++++++++-
> 3 files changed, 112 insertions(+), 2 deletions(-)
>
> diff --git a/board/udoo/neo/neo.c b/board/udoo/neo/neo.c
> index ad7452c..688b522 100644
> --- a/board/udoo/neo/neo.c
> +++ b/board/udoo/neo/neo.c
> @@ -10,6 +10,7 @@
> */
>
> #include <asm/arch/clock.h>
> +#include <asm/arch/crm_regs.h>
> #include <asm/arch/imx-regs.h>
> #include <asm/arch/iomux.h>
> #include <asm/arch/mx6-pins.h>
> @@ -25,8 +26,11 @@
> #include <linux/sizes.h>
> #include <common.h>
> #include <i2c.h>
> +#include <miiphy.h>
> +#include <netdev.h>
> #include <power/pmic.h>
> #include <power/pfuze3000_pmic.h>
> +#include <malloc.h>
>
> DECLARE_GLOBAL_DATA_PTR;
>
> @@ -50,6 +54,16 @@ enum {
> PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
> PAD_CTL_ODE)
>
> +#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
> + PAD_CTL_SPEED_MED | \
> + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
> +
> +#define ENET_CLK_PAD_CTRL (PAD_CTL_SPEED_MED | \
> + PAD_CTL_DSE_120ohm | PAD_CTL_SRE_FAST)
> +
> +#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
> + PAD_CTL_SPEED_MED | PAD_CTL_SRE_FAST)
> +
> #define WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED | \
> PAD_CTL_DSE_40ohm)
>
> @@ -213,6 +227,27 @@ static iomux_v3_cfg_t const usdhc2_pads[] = {
> MX6_PAD_SD1_CMD__GPIO6_IO_1 | MUX_PAD_CTRL(NO_PAD_CTRL),
> };
>
> +static iomux_v3_cfg_t const fec1_pads[] = {
> + MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
> + MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
> + MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
> + MX6_PAD_RGMII1_RXC__ENET1_RX_ER | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
> + MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
> + MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_ENET2_TX_CLK__GPIO2_IO_9 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
> + MX6_PAD_ENET1_CRS__GPIO2_IO_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
> +};
> +
> +static iomux_v3_cfg_t const phy_control_pads[] = {
> + /* 25MHz Ethernet PHY Clock */
> + MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M |
> + MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
> +};
> +
> static iomux_v3_cfg_t const board_recognition_pads[] = {
> /*Connected to R184*/
> MX6_PAD_NAND_READY_B__GPIO4_IO_13 | BOARD_DETECT_PAD_CFG,
> @@ -233,6 +268,66 @@ static void setup_iomux_uart(void)
> imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
> }
>
> +static int setup_fec(int fec_id)
> +{
> + struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
> + int reg;
> +
> + imx_iomux_v3_setup_multiple_pads(phy_control_pads,
> + ARRAY_SIZE(phy_control_pads));
> +
> + /* Reset PHY */
> + gpio_direction_output(IMX_GPIO_NR(2, 1) , 0);
> + udelay(10000);
> + gpio_set_value(IMX_GPIO_NR(2, 1), 1);
> + udelay(100);
> +
> + reg = readl(&anatop->pll_enet);
> + reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
> + writel(reg, &anatop->pll_enet);
> +
> + return enable_fec_anatop_clock(fec_id, ENET_25MHZ);
> +}
> +
> +int board_eth_init(bd_t *bis)
> +{
> + uint32_t base = IMX_FEC_BASE;
> + struct mii_dev *bus = NULL;
> + struct phy_device *phydev = NULL;
> + int ret;
> +
> + imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
> +
> + setup_fec(CONFIG_FEC_ENET_DEV);
> +
> + bus = fec_get_miibus(base, CONFIG_FEC_ENET_DEV);
> + if (!bus)
> + return -EINVAL;
> +
> + phydev = phy_find_by_mask(bus, (0x1 << CONFIG_FEC_MXC_PHYADDR),
> + PHY_INTERFACE_MODE_RMII);
> + if (!phydev) {
> + free(bus);
> + return -EINVAL;
> + }
> +
> + ret = fec_probe(bis, CONFIG_FEC_ENET_DEV, base, bus, phydev);
> + if (ret) {
> + free(bus);
> + free(phydev);
> + return ret;
> + }
> + return 0;
> +}
> +
> +int board_phy_config(struct phy_device *phydev)
> +{
> + if (phydev->drv->config)
> + phydev->drv->config(phydev);
> +
> + return 0;
> +}
> +
> int board_init(void)
> {
> /* Address of boot parameters */
> diff --git a/configs/udoo_neo_defconfig b/configs/udoo_neo_defconfig
> index f88820c..5df4ef9 100644
> --- a/configs/udoo_neo_defconfig
> +++ b/configs/udoo_neo_defconfig
> @@ -19,7 +19,7 @@ CONFIG_CMD_BOOTZ=y
> CONFIG_CMD_MMC=y
> CONFIG_CMD_GPIO=y
> # CONFIG_CMD_SETEXPR is not set
> -# CONFIG_CMD_DHCP=y
> +CONFIG_CMD_DHCP=y
> CONFIG_CMD_CACHE=y
> CONFIG_CMD_TIME=y
> CONFIG_CMD_EXT2=y
> diff --git a/include/configs/udoo_neo.h b/include/configs/udoo_neo.h
> index 0c59068..aec39db 100644
> --- a/include/configs/udoo_neo.h
> +++ b/include/configs/udoo_neo.h
> @@ -58,7 +58,8 @@
> BOOTENV
>
> #define BOOT_TARGET_DEVICES(func) \
> - func(MMC, mmc, 0)
> + func(MMC, mmc, 0) \
> + func(DHCP, dhcp, na)
>
> #define CONFIG_BOOTCOMMAND \
> "run findfdt; " \
> @@ -103,4 +104,18 @@
> #define CONFIG_POWER_PFUZE3000_I2C_ADDR 0x08
> #define PFUZE3000_I2C_BUS 0
>
> +/* Network */
> +#define CONFIG_FEC_MXC
> +#define CONFIG_MII
> +
> +#define CONFIG_FEC_ENET_DEV 0
> +#define IMX_FEC_BASE ENET_BASE_ADDR
> +#define CONFIG_FEC_MXC_PHYADDR 0x0
> +
> +#define CONFIG_FEC_XCV_TYPE RMII
> +#define CONFIG_ETHPRIME "FEC0"
> +
> +#define CONFIG_PHYLIB
> +#define CONFIG_PHY_MICREL
> +
> #endif /* __CONFIG_H */
>
Applied to u-boot-imx, thanks !
Best regards,
Stefano Babic
--
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