1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2020 Toradex
8 #include <asm/arch/clock.h>
9 #include <asm/arch/sys_proto.h>
16 #include "../common/tdx-cfg-block.h"
18 DECLARE_GLOBAL_DATA_PTR;
27 #if IS_ENABLED(CONFIG_FEC_MXC)
28 static int setup_fec(void)
30 struct iomuxc_gpr_base_regs *gpr =
31 (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
33 /* Use 125M anatop REF_CLK1 for ENET1, not from external */
34 clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
39 int board_phy_config(struct phy_device *phydev)
43 switch (ksz9xx1_phy_get_id(phydev) & MII_KSZ9x31_SILICON_REV_MASK) {
46 * The PHY adds 1.2ns for the RXC and 0ns for TXC clock by
47 * default. The MAC and the layout don't add a skew between
49 * Add 0.3ns for the RXC path and 0.96 + 0.42 ns (1.38 ns) for
50 * the TXC path to get the required clock skews.
52 /* control data pad skew - devaddr = 0x02, register = 0x04 */
53 ksz9031_phy_extended_write(phydev, 0x02,
54 MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
55 MII_KSZ9031_MOD_DATA_NO_POST_INC,
57 /* rx data pad skew - devaddr = 0x02, register = 0x05 */
58 ksz9031_phy_extended_write(phydev, 0x02,
59 MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
60 MII_KSZ9031_MOD_DATA_NO_POST_INC,
62 /* tx data pad skew - devaddr = 0x02, register = 0x06 */
63 ksz9031_phy_extended_write(phydev, 0x02,
64 MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
65 MII_KSZ9031_MOD_DATA_NO_POST_INC,
67 /* gtx and rx clock pad skew - devaddr = 0x02,register = 0x08 */
68 ksz9031_phy_extended_write(phydev, 0x02,
69 MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
70 MII_KSZ9031_MOD_DATA_NO_POST_INC,
75 /* read rxc dll control - devaddr = 0x2, register = 0x4c */
76 tmp = ksz9031_phy_extended_read(phydev, 0x02,
77 MII_KSZ9131_EXT_RGMII_2NS_SKEW_RXDLL,
78 MII_KSZ9031_MOD_DATA_NO_POST_INC);
79 /* disable rxdll bypass (enable 2ns skew delay on RXC) */
80 tmp &= ~MII_KSZ9131_RXTXDLL_BYPASS;
81 /* rxc data pad skew 2ns - devaddr = 0x02, register = 0x4c */
82 tmp = ksz9031_phy_extended_write(phydev, 0x02,
83 MII_KSZ9131_EXT_RGMII_2NS_SKEW_RXDLL,
84 MII_KSZ9031_MOD_DATA_NO_POST_INC, tmp);
85 /* read txc dll control - devaddr = 0x02, register = 0x4d */
86 tmp = ksz9031_phy_extended_read(phydev, 0x02,
87 MII_KSZ9131_EXT_RGMII_2NS_SKEW_TXDLL,
88 MII_KSZ9031_MOD_DATA_NO_POST_INC);
89 /* disable txdll bypass (enable 2ns skew delay on TXC) */
90 tmp &= ~MII_KSZ9131_RXTXDLL_BYPASS;
91 /* rxc data pad skew 2ns - devaddr = 0x02, register = 0x4d */
92 tmp = ksz9031_phy_extended_write(phydev, 0x02,
93 MII_KSZ9131_EXT_RGMII_2NS_SKEW_TXDLL,
94 MII_KSZ9031_MOD_DATA_NO_POST_INC, tmp);
98 if (phydev->drv->config)
99 phydev->drv->config(phydev);
106 if (IS_ENABLED(CONFIG_FEC_MXC))
112 int board_mmc_get_env_dev(int devno)
117 static enum pcb_rev_t get_pcb_revision(void)
120 struct udevice *i2c_dev = NULL;
124 ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_PMIC, &bus);
126 ret = dm_i2c_probe(bus, 0x4b, 0, &i2c_dev);
128 ret = dm_i2c_read(i2c_dev, 0x0, &is_bd71837, 1);
130 /* BD71837_REV, High Nibble is major version, fix 1010 */
131 is_bd71837 = !ret && ((is_bd71837 & 0xf0) == 0xa0);
132 return is_bd71837 ? PCB_VERSION_1_0 : PCB_VERSION_1_1;
135 static void select_dt_from_module_version(void)
138 char *env_variant = env_get("variant");
141 if (IS_ENABLED(CONFIG_TDX_CFG_BLOCK)) {
143 * If we have a valid config block and it says we are a
144 * module with Wi-Fi/Bluetooth make sure we use the -wifi
147 is_wifi = (tdx_hw_tag.prodid == VERDIN_IMX8MMQ_WIFI_BT_IT) ||
148 (tdx_hw_tag.prodid == VERDIN_IMX8MMDL_WIFI_BT_IT);
151 switch (get_pcb_revision()) {
152 case PCB_VERSION_1_0:
153 printf("Detected a V1.0 module\n");
155 strncpy(&variant[0], "wifi", sizeof(variant));
157 strncpy(&variant[0], "nonwifi", sizeof(variant));
161 strncpy(&variant[0], "wifi-v1.1", sizeof(variant));
163 strncpy(&variant[0], "nonwifi-v1.1", sizeof(variant));
167 if (strcmp(variant, env_variant)) {
168 printf("Setting variant to %s\n", variant);
169 env_set("variant", variant);
171 if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE))
176 int board_late_init(void)
178 select_dt_from_module_version();
183 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
184 int ft_board_setup(void *blob, struct bd_info *bd)