[U-Boot] [PATCH 2/2] ARM: Congatec: Ethernet: Add support for cgtqmx6qeval

20 Jun 2013

cgtqmx6eval.c: add Micrel KSZ9031  Ethernet transceiver
README       : U-boot works both on SPI-NOR and SDcard
Signed-off-by: Leo Sartre lsartre@adeneo-embedded.com
---
 board/congatec/cgtqmx6eval/README        |    3 +-
 board/congatec/cgtqmx6eval/cgtqmx6eval.c |  112 ++++++++++++++++++++++++++++++
 include/configs/cgtqmx6eval.h            |   13 ++++
 3 files changed, 126 insertions(+), 2 deletions(-)

diff --git a/board/congatec/cgtqmx6eval/README b/board/congatec/cgtqmx6eval/README
index bbf0f75..5e76d2a 100644
--- a/board/congatec/cgtqmx6eval/README
+++ b/board/congatec/cgtqmx6eval/README
@@ -7,8 +7,7 @@ Conga-QEVAl Evaluation Carrier board with qmx6 quad module.
 1. Boot source, boot from SD card
 ---------------------------------
-This version of u-boot works only on the SD card. By default, the
-Congatec board can boot only from the SPI-NOR.
+By default, the Congatec board can boot only from the SPI-NOR.
 But, with the u-boot version provided with the board you can write boot
 registers to force the board to reboot and boot from the SD slot. If
 "bmode" command is not available from your pre-installed u-boot, these
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
index f70f674..00088fb 100644
--- a/board/congatec/cgtqmx6eval/cgtqmx6eval.c
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -30,6 +30,8 @@
 #include <asm/imx-common/iomux-v3.h>
 #include <asm/imx-common/boot_mode.h>
 #include <mmc.h>
+#include <micrel.h>
+#include <miiphy.h>
 #include <fsl_esdhc.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -40,6 +42,9 @@ DECLARE_GLOBAL_DATA_PTR;
 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |\
    PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
 int dram_init(void)
 {
    gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -76,6 +81,113 @@ iomux_v3_cfg_t const usdhc4_pads[] = {
    MX6_PAD_NANDF_D6__GPIO_2_6    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 };
+iomux_v3_cfg_t const enet_pads1[] = {
+	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TXC__ENET_RGMII_TXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD0__ENET_RGMII_TD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD1__ENET_RGMII_TD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD2__ENET_RGMII_TD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD3__ENET_RGMII_TD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_GPIO_0__CCM_CLKO	        | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_GPIO_3__CCM_CLKO2	        | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	/* pin 35 - 1 (PHY_AD2) on reset */
+	MX6_PAD_RGMII_RXC__GPIO_6_30		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 32 - 1 - (MODE0) all */
+	MX6_PAD_RGMII_RD0__GPIO_6_25		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 31 - 1 - (MODE1) all */
+	MX6_PAD_RGMII_RD1__GPIO_6_27		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 28 - 1 - (MODE2) all */
+	MX6_PAD_RGMII_RD2__GPIO_6_28		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 27 - 1 - (MODE3) all */
+	MX6_PAD_RGMII_RD3__GPIO_6_29		| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
+	MX6_PAD_RGMII_RX_CTL__GPIO_6_24	| MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* pin 42 PHY nRST */
+	MX6_PAD_EIM_D23__GPIO_3_23		| MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const enet_pads2[] = {
+	MX6_PAD_RGMII_RXC__ENET_RGMII_RXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD0__ENET_RGMII_RD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD1__ENET_RGMII_RD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD2__ENET_RGMII_RD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD3__ENET_RGMII_RD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+static void setup_iomux_enet(void)
+{
+	gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
+	gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
+	gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
+	gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
+	gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
+	gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
+	imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
+	gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
+
+	/* Need delay 10ms according to KSZ9031 spec */
+	udelay(1000 * 10);
+	gpio_set_value(IMX_GPIO_NR(3, 23), 1);
+	imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	ksz9031_phy_extended_write(phydev, 2,
+					MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
+					0x0000);
+	ksz9031_phy_extended_write(phydev, 2,
+					MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
+					0x0000);
+	ksz9031_phy_extended_write(phydev, 2,
+					MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
+					0xFFFF);
+	ksz9031_phy_extended_write(phydev, 2,
+					MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
+					0x3FFF);
+
+	phydev->drv->config(phydev);
+
+	return 0;
+}
+
+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;
+
+	setup_iomux_enet();
+
+#ifdef CONFIG_FEC_MXC
+	bus = fec_get_miibus(base, -1);
+	if (!bus)
+		return 0;
+	/* scan phy 6*/
+	phydev = phy_find_by_mask(bus, (0xf << 6), PHY_INTERFACE_MODE_RGMII);
+
+	if (!phydev) {
+		free(bus);
+		printf("No phy found\n");
+		return 0;
+	}
+	printf("using phy at %d\n", phydev->addr);
+	ret  = fec_probe(bis, -1, base, bus, phydev);
+	if (ret) {
+		printf("FEC MXC: %s:failed\n", __func__);
+		free(phydev);
+		free(bus);
+	}
+#endif
+	return 0;
+}
+
+
 static void setup_iomux_uart(void)
 {
    imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
diff --git a/include/configs/cgtqmx6eval.h b/include/configs/cgtqmx6eval.h
index 1363858..60b7bec 100644
--- a/include/configs/cgtqmx6eval.h
+++ b/include/configs/cgtqmx6eval.h
@@ -66,6 +66,19 @@
 #define CONFIG_CMD_FAT
 #define CONFIG_DOS_PARTITION
+/* Ethernet Configs */
+#define CONFIG_CMD_PING
+#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"
+#define CONFIG_FEC_MXC_PHYADDR		6
+#define CONFIG_PHYLIB
+#define CONFIG_PHY_MICREL
+
 /* Miscellaneous commands */
 #define CONFIG_CMD_BMODE
-- 
1.7.10.4

    

[U-Boot] [PATCH 2/2] ARM: Congatec: Ethernet: Add support for cgtqmx6qeval

SARTRE Leo