[U-Boot] [PATCH v2 2/3] ARM: Congatec: Ethernet: Add support for cgtqmx6qeval
SARTRE Leo
lsartre at adeneo-embedded.com
Thu Jun 20 15:46:49 CEST 2013
cgtqmx6eval.c: add Micrel KSZ9031 Ethernet transceiver
Signed-off-by: Leo Sartre <lsartre at adeneo-embedded.com>
---
board/congatec/cgtqmx6eval/cgtqmx6eval.c | 111 ++++++++++++++++++++++++++++++
include/configs/cgtqmx6eval.h | 13 ++++
2 files changed, 124 insertions(+)
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
index f70f674..c769868 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 +81,112 @@ 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;
+}
+
+#ifdef CONFIG_FEC_MXC
+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();
+ 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);
+ }
+
+ return 0;
+}
+#endif
+
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
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