[U-Boot] [PATCH 4/4] imx: mx6ul_14x14_evk add ENET support

Peng Fan
2015-08-03T10:06:20Z

Add enet support for mx6ul_14x14_evk board:
1. add pinmux settings
2. implement board_eth_init
3. implement board_phy_config

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
---
board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c | 116 ++++++++++++++++++++++
configs/mx6ul_14x14_evk_defconfig | 4 +
include/configs/mx6ul_14x14_evk.h | 21 ++++
3 files changed, 141 insertions(+)

diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
index 8f712cb..771e4f9 100644
--- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
+++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c
@@ -19,8 +19,10 @@
#include <common.h>
#include <fsl_esdhc.h>
#include <i2c.h>
+#include <miiphy.h>
#include <linux/sizes.h>
#include <mmc.h>
+#include <netdev.h>
#include <usb.h>
#include <usb/ehci-fsl.h>

@@ -43,6 +45,18 @@ DECLARE_GLOBAL_DATA_PTR;
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_HIGH | \
+ PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
+
+#define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
+ PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE)
+
+#define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_SPEED_HIGH | PAD_CTL_SRE_FAST)
+
#define IOX_SDI IMX_GPIO_NR(5, 10)
#define IOX_STCP IMX_GPIO_NR(5, 7)
#define IOX_SHCP IMX_GPIO_NR(5, 11)
@@ -457,6 +471,104 @@ int board_ehci_hcd_init(int port)
}
#endif

+#ifdef CONFIG_FEC_MXC
+/*
+ * pin conflicts for fec1 and fec2, GPIO1_IO06 and GPIO1_IO07 can only
+ * be used for ENET1 or ENET2, cannot be used for both.
+ */
+static iomux_v3_cfg_t const fec1_pads[] = {
+ MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
+ MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
+ MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const fec2_pads[] = {
+ MX6_PAD_GPIO1_IO06__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
+ MX6_PAD_GPIO1_IO07__ENET2_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+
+ MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
+ MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+
+ MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+static void setup_iomux_fec(int fec_id)
+{
+ if (fec_id == 0)
+ imx_iomux_v3_setup_multiple_pads(fec1_pads,
+ ARRAY_SIZE(fec1_pads));
+ else
+ imx_iomux_v3_setup_multiple_pads(fec2_pads,
+ ARRAY_SIZE(fec2_pads));
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int ret;
+
+ setup_iomux_fec(CONFIG_FEC_ENET_DEV);
+
+ ret = fecmxc_initialize_multi(bis, CONFIG_FEC_ENET_DEV,
+ CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
+ if (ret)
+ printf("FEC%d MXC: %s:failed\n", CONFIG_FEC_ENET_DEV, __func__);
+
+ return 0;
+}
+
+static int setup_fec(int fec_id)
+{
+ struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+ int ret;
+
+ if (0 == fec_id) {
+ /*
+ * Use 50M anatop loopback REF_CLK1 for ENET1,
+ * clear gpr1[13], set gpr1[17].
+ */
+ clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
+ IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
+ } else {
+ /*
+ * Use 50M anatop loopback REF_CLK2 for ENET2,
+ * clear gpr1[14], set gpr1[18].
+ */
+ clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
+ IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
+ }
+
+ ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
+ if (ret)
+ return ret;
+
+ enable_enet_clk(1);
+
+ return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
+
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+#endif
+
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -477,6 +589,10 @@ int board_init(void)
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
#endif

+#ifdef CONFIG_FEC_MXC
+ setup_fec(CONFIG_FEC_ENET_DEV);
+#endif
+
#ifdef CONFIG_USB_EHCI_MX6
setup_usb();
#endif
diff --git a/configs/mx6ul_14x14_evk_defconfig b/configs/mx6ul_14x14_evk_defconfig
index b6eefaf..87ba686 100644
--- a/configs/mx6ul_14x14_evk_defconfig
+++ b/configs/mx6ul_14x14_evk_defconfig
@@ -2,3 +2,7 @@ CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6UL"
CONFIG_ARM=y
CONFIG_TARGET_MX6UL_14X14_EVK=y
CONFIG_SPL=y
+CONFIG_CMD_NET=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
diff --git a/include/configs/mx6ul_14x14_evk.h b/include/configs/mx6ul_14x14_evk.h
index 436b022..a3815b3 100644
--- a/include/configs/mx6ul_14x14_evk.h
+++ b/include/configs/mx6ul_14x14_evk.h
@@ -222,6 +222,27 @@
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#endif

+#ifdef CONFIG_CMD_NET
+#define CONFIG_FEC_MXC
+#define CONFIG_MII
+#define CONFIG_FEC_ENET_DEV 1
+
+#if (CONFIG_FEC_ENET_DEV == 0)
+#define IMX_FEC_BASE ENET_BASE_ADDR
+#define CONFIG_FEC_MXC_PHYADDR 0x2
+#define CONFIG_FEC_XCV_TYPE RMII
+#elif (CONFIG_FEC_ENET_DEV == 1)
+#define IMX_FEC_BASE ENET2_BASE_ADDR
+#define CONFIG_FEC_MXC_PHYADDR 0x1
+#define CONFIG_FEC_XCV_TYPE RMII
+#endif
+#define CONFIG_ETHPRIME "FEC"
+
+#define CONFIG_PHYLIB
+#define CONFIG_PHY_MICREL
+#define CONFIG_FEC_DMA_MINALIGN 64
+#endif
+
#define CONFIG_IMX6_THERMAL

#endif
--
1.8.4