1 /* 2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <asm/arch/imx-regs.h> 10 #include <asm/arch/mx6-pins.h> 11 #include <asm/arch/clock.h> 12 #include <asm/errno.h> 13 #include <asm/gpio.h> 14 #include <asm/imx-common/iomux-v3.h> 15 #include <mmc.h> 16 #include <fsl_esdhc.h> 17 #include <miiphy.h> 18 #include <netdev.h> 19 20 DECLARE_GLOBAL_DATA_PTR; 21 22 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 23 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 24 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 25 26 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 27 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 28 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 29 30 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 31 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 32 33 int dram_init(void) 34 { 35 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 36 37 return 0; 38 } 39 40 iomux_v3_cfg_t const uart4_pads[] = { 41 MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 42 MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 43 }; 44 45 iomux_v3_cfg_t const usdhc3_pads[] = { 46 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 47 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 48 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 49 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 50 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 51 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 52 MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 53 MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 54 MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 55 MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 56 MX6_PAD_NANDF_CS0__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 57 }; 58 59 iomux_v3_cfg_t const usdhc4_pads[] = { 60 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 61 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 62 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 63 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 64 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 65 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 66 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 67 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 68 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 69 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 70 }; 71 72 iomux_v3_cfg_t const enet_pads[] = { 73 MX6_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 74 MX6_PAD_KEY_COL2__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 75 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 76 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 77 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 78 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 79 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 80 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 81 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 82 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 83 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 84 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 85 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 86 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 }; 89 90 91 static void setup_iomux_uart(void) 92 { 93 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads)); 94 } 95 96 static void setup_iomux_enet(void) 97 { 98 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 99 } 100 101 #ifdef CONFIG_FSL_ESDHC 102 struct fsl_esdhc_cfg usdhc_cfg[2] = { 103 {USDHC3_BASE_ADDR}, 104 {USDHC4_BASE_ADDR}, 105 }; 106 107 int board_mmc_getcd(struct mmc *mmc) 108 { 109 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 110 int ret; 111 112 if (cfg->esdhc_base == USDHC3_BASE_ADDR) { 113 gpio_direction_input(IMX_GPIO_NR(6, 11)); 114 ret = !gpio_get_value(IMX_GPIO_NR(6, 11)); 115 } else /* Don't have the CD GPIO pin on board */ 116 ret = 1; 117 118 return ret; 119 } 120 121 int board_mmc_init(bd_t *bis) 122 { 123 s32 status = 0; 124 u32 index = 0; 125 126 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 127 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 128 129 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { 130 switch (index) { 131 case 0: 132 imx_iomux_v3_setup_multiple_pads( 133 usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); 134 break; 135 case 1: 136 imx_iomux_v3_setup_multiple_pads( 137 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 138 break; 139 default: 140 printf("Warning: you configured more USDHC controllers" 141 "(%d) then supported by the board (%d)\n", 142 index + 1, CONFIG_SYS_FSL_USDHC_NUM); 143 return status; 144 } 145 146 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 147 } 148 149 return status; 150 } 151 #endif 152 153 #define MII_MMD_ACCESS_CTRL_REG 0xd 154 #define MII_MMD_ACCESS_ADDR_DATA_REG 0xe 155 #define MII_DBG_PORT_REG 0x1d 156 #define MII_DBG_PORT2_REG 0x1e 157 158 int fecmxc_mii_postcall(int phy) 159 { 160 unsigned short val; 161 162 /* 163 * Due to the i.MX6Q Armadillo2 board HW design,there is 164 * no 125Mhz clock input from SOC. In order to use RGMII, 165 * We need enable AR8031 ouput a 125MHz clk from CLK_25M 166 */ 167 miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7); 168 miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016); 169 miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007); 170 miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val); 171 val &= 0xffe3; 172 val |= 0x18; 173 miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val); 174 175 /* For the RGMII phy, we need enable tx clock delay */ 176 miiphy_write("FEC", phy, MII_DBG_PORT_REG, 0x5); 177 miiphy_read("FEC", phy, MII_DBG_PORT2_REG, &val); 178 val |= 0x0100; 179 miiphy_write("FEC", phy, MII_DBG_PORT2_REG, val); 180 181 miiphy_write("FEC", phy, MII_BMCR, 0xa100); 182 183 return 0; 184 } 185 186 int board_eth_init(bd_t *bis) 187 { 188 struct eth_device *dev; 189 int ret = cpu_eth_init(bis); 190 191 if (ret) 192 return ret; 193 194 dev = eth_get_dev_by_name("FEC"); 195 if (!dev) { 196 printf("FEC MXC: Unable to get FEC device entry\n"); 197 return -EINVAL; 198 } 199 200 ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); 201 if (ret) { 202 printf("FEC MXC: Unable to register FEC mii postcall\n"); 203 return ret; 204 } 205 206 return 0; 207 } 208 209 int board_early_init_f(void) 210 { 211 setup_iomux_uart(); 212 setup_iomux_enet(); 213 214 return 0; 215 } 216 217 int board_init(void) 218 { 219 /* address of boot parameters */ 220 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 221 222 return 0; 223 } 224 225 int checkboard(void) 226 { 227 puts("Board: MX6Q-Armadillo2\n"); 228 229 return 0; 230 } 231