LXR uboot/board/toradex/verdin-imx8mp/verdin-imx8mp.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright 2022 Toradex
   4 */
   5
   6#include <common.h>
   7#include <asm/arch/clock.h>
   8#include <asm/arch/imx8mp_pins.h>
   9#include <asm/arch/sys_proto.h>
  10#include <asm-generic/gpio.h>
  11#include <asm/global_data.h>
  12#include <asm/mach-imx/gpio.h>
  13#include <asm/mach-imx/iomux-v3.h>
  14#include <errno.h>
  15#include <env.h>
  16#include <init.h>
  17#include <linux/delay.h>
  18#include <micrel.h>
  19#include <miiphy.h>
  20#include <netdev.h>
  21
  22#include "../common/tdx-cfg-block.h"
  23
  24DECLARE_GLOBAL_DATA_PTR;
  25
  26#define UART_PAD_CTRL   (PAD_CTL_DSE6 | PAD_CTL_FSEL1)
  27
  28/* Verdin UART_3, Console/Debug UART */
  29static const iomux_v3_cfg_t uart_pads[] = {
  30        MX8MP_PAD_UART3_RXD__UART3_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  31        MX8MP_PAD_UART3_TXD__UART3_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  32};
  33
  34int board_early_init_f(void)
  35{
  36        imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
  37
  38        init_uart_clk(2);
  39
  40        return 0;
  41}
  42
  43static void setup_fec(void)
  44{
  45        struct iomuxc_gpr_base_regs *gpr =
  46                (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
  47
  48        /* Enable RGMII TX clk output */
  49        setbits_le32(&gpr->gpr[1], BIT(22));
  50}
  51
  52static int setup_eqos(void)
  53{
  54        struct iomuxc_gpr_base_regs *gpr =
  55                (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
  56
  57        /* set INTF as RGMII, enable RGMII TXC clock */
  58        clrsetbits_le32(&gpr->gpr[1],
  59                        IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MASK, BIT(16));
  60        setbits_le32(&gpr->gpr[1], BIT(19) | BIT(21));
  61
  62        return set_clk_eqos(ENET_125MHZ);
  63}
  64
  65#if IS_ENABLED(CONFIG_NET)
  66int board_phy_config(struct phy_device *phydev)
  67{
  68        if (phydev->drv->config)
  69                phydev->drv->config(phydev);
  70        return 0;
  71}
  72#endif
  73
  74int board_init(void)
  75{
  76        int ret = 0;
  77
  78        if (IS_ENABLED(CONFIG_FEC_MXC))
  79                setup_fec();
  80
  81        if (IS_ENABLED(CONFIG_DWC_ETH_QOS))
  82                ret = setup_eqos();
  83
  84        return ret;
  85}
  86
  87static void select_dt_from_module_version(void)
  88{
  89        char variant[32];
  90        char *env_variant = env_get("variant");
  91        int is_wifi = 0;
  92
  93        if (IS_ENABLED(CONFIG_TDX_CFG_BLOCK)) {
  94                /*
  95                 * If we have a valid config block and it says we are a module with
  96                 * Wi-Fi/Bluetooth make sure we use the -wifi device tree.
  97                 */
  98                is_wifi = (tdx_hw_tag.prodid == VERDIN_IMX8MPQ_WIFI_BT_IT) ||
  99                          (tdx_hw_tag.prodid == VERDIN_IMX8MPQ_2GB_WIFI_BT_IT) ||
 100                          (tdx_hw_tag.prodid == VERDIN_IMX8MPQ_8GB_WIFI_BT);
 101        }
 102
 103        if (is_wifi)
 104                strlcpy(&variant[0], "wifi", sizeof(variant));
 105        else
 106                strlcpy(&variant[0], "nonwifi", sizeof(variant));
 107
 108        if (strcmp(variant, env_variant)) {
 109                printf("Setting variant to %s\n", variant);
 110                env_set("variant", variant);
 111
 112                if (IS_ENABLED(CONFIG_ENV_IS_NOWHERE))
 113                        env_save();
 114        }
 115}
 116
 117int board_late_init(void)
 118{
 119        select_dt_from_module_version();
 120
 121        return 0;
 122}
 123
 124#if IS_ENABLED(CONFIG_OF_LIBFDT) && IS_ENABLED(CONFIG_OF_BOARD_SETUP)
 125int ft_board_setup(void *blob, struct bd_info *bd)
 126{
 127        return 0;
 128}
 129#endif
 130