--- /dev/null
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <malloc.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/sata.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <micrel.h>
+#include <miiphy.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
+ 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)
+
+#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 WDT_EN IMX_GPIO_NR(5, 4)
+#define WDT_TRG IMX_GPIO_NR(3, 19)
+
+int dram_init(void)
+{
+ gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
+
+ return 0;
+}
+
+static iomux_v3_cfg_t const uart2_pads[] = {
+ MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+ MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const wdog_pads[] = {
+ MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_EIM_D19__GPIO3_IO19,
+};
+
+int mx6_rgmii_rework(struct phy_device *phydev)
+{
+ /*
+ * Bug: Apparently uDoo does not works with Gigabit switches...
+ * Limiting speed to 10/100Mbps, and setting master mode, seems to
+ * be the only way to have a successfull PHY auto negotiation.
+ * How to fix: Understand why Linux kernel do not have this issue.
+ */
+ phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, 0x1c00);
+
+ /* control data pad skew - devaddr = 0x02, register = 0x04 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+ /* rx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+ /* tx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+ /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
+ return 0;
+}
+
+static 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__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ /* RGMII reset */
+ MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* Ethernet power supply */
+ MX6_PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* pin 32 - 1 - (MODE0) all */
+ MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* pin 31 - 1 - (MODE1) all */
+ MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* pin 28 - 1 - (MODE2) all */
+ MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* pin 27 - 1 - (MODE3) all */
+ MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
+ MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const enet_pads2[] = {
+ MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD3__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)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
+ udelay(20);
+ gpio_direction_output(IMX_GPIO_NR(2, 31), 1); /* Power supply on */
+
+ gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* assert PHY rst */
+
+ gpio_direction_output(IMX_GPIO_NR(6, 24), 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);
+ udelay(1000);
+
+ gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* deassert PHY rst */
+
+ /* Need 100ms delay to exit from reset. */
+ udelay(1000 * 100);
+
+ gpio_free(IMX_GPIO_NR(6, 24));
+ gpio_free(IMX_GPIO_NR(6, 25));
+ gpio_free(IMX_GPIO_NR(6, 27));
+ gpio_free(IMX_GPIO_NR(6, 28));
+ gpio_free(IMX_GPIO_NR(6, 29));
+
+ imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
+}
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+static void setup_iomux_wdog(void)
+{
+ imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
+ gpio_direction_output(WDT_TRG, 0);
+ gpio_direction_output(WDT_EN, 1);
+ gpio_direction_input(WDT_TRG);
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg = { USDHC3_BASE_ADDR };
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ return 1; /* Always present */
+}
+
+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 4,5,6,7 */
+ phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
+
+ if (!phydev) {
+ free(bus);
+ 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;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ usdhc_cfg.max_bus_width = 4;
+
+ return fsl_esdhc_initialize(bis, &usdhc_cfg);
+}
+
+int board_early_init_f(void)
+{
+ setup_iomux_wdog();
+ setup_iomux_uart();
+
+ return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+ mx6_rgmii_rework(phydev);
+ if (phydev->drv->config)
+ phydev->drv->config(phydev);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+#ifdef CONFIG_CMD_SATA
+ setup_sata();
+#endif
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: Udoo\n");
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff