1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2018 NXP
4 */
5
6 #include <common.h>
7 #include <miiphy.h>
8 #include <asm-generic/gpio.h>
9 #include <asm/arch/imx8mq_pins.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/arch/clock.h>
12
13 DECLARE_GLOBAL_DATA_PTR;
14
15 #define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
16
17 #define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
18
19 static iomux_v3_cfg_t const wdog_pads[] = {
20 IMX8MQ_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
21 };
22
23 static iomux_v3_cfg_t const uart_pads[] = {
24 IMX8MQ_PAD_UART1_RXD__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
25 IMX8MQ_PAD_UART1_TXD__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
26 };
27
board_early_init_f(void)28 int board_early_init_f(void)
29 {
30 struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
31
32 imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
33 set_wdog_reset(wdog);
34
35 imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
36
37 return 0;
38 }
39
setup_fec(void)40 static int setup_fec(void)
41 {
42 struct iomuxc_gpr_base_regs *gpr =
43 (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
44
45 /* Use 125M anatop REF_CLK1 for ENET1, not from external */
46 clrsetbits_le32(&gpr->gpr[1], BIT(13) | BIT(17), 0);
47 return set_clk_enet(ENET_125MHZ);
48 }
49
board_phy_config(struct phy_device * phydev)50 int board_phy_config(struct phy_device *phydev)
51 {
52 /* enable rgmii rxc skew and phy mode select to RGMII copper */
53 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
54 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
55
56 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
57 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
58
59 if (phydev->drv->config)
60 phydev->drv->config(phydev);
61 return 0;
62 }
63
board_init(void)64 int board_init(void)
65 {
66 setup_fec();
67
68 return 0;
69 }
70
board_mmc_get_env_dev(int devno)71 int board_mmc_get_env_dev(int devno)
72 {
73 return devno;
74 }
75
board_late_init(void)76 int board_late_init(void)
77 {
78 if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) {
79 env_set("board_name", "imx8mq-cm");
80 env_set("board_rev", "v2.0");
81 }
82
83 return 0;
84 }
85