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 <linux/errno.h> 13 #include <asm/gpio.h> 14 #include <asm/mach-imx/iomux-v3.h> 15 #include <mmc.h> 16 #include <fsl_esdhc.h> 17 #include <miiphy.h> 18 #include <netdev.h> 19 #include <usb.h> 20 21 DECLARE_GLOBAL_DATA_PTR; 22 23 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 24 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 25 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 26 27 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ 28 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 29 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 30 31 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 32 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) 33 34 int dram_init(void) 35 { 36 #if defined(CONFIG_MX6DL) && !defined(CONFIG_MX6DL_LPDDR2) && \ 37 defined(CONFIG_DDR_32BIT) 38 gd->ram_size = ((phys_size_t)CONFIG_DDR_MB * 1024 * 1024) / 2; 39 #else 40 gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024; 41 #endif 42 43 return 0; 44 } 45 46 iomux_v3_cfg_t const uart4_pads[] = { 47 MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 48 MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 49 }; 50 51 iomux_v3_cfg_t const usdhc3_pads[] = { 52 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 53 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 54 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 55 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 56 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 57 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 58 MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 59 MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 60 MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 61 MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 62 MX6_PAD_NANDF_CS0__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 63 }; 64 65 iomux_v3_cfg_t const usdhc4_pads[] = { 66 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 67 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 68 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 69 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 70 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 71 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 72 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 73 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 74 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 75 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 76 }; 77 78 iomux_v3_cfg_t const enet_pads[] = { 79 MX6_PAD_KEY_COL1__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 80 MX6_PAD_KEY_COL2__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 81 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 82 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 83 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 84 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 85 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 86 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 89 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 90 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 91 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 92 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 93 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 94 }; 95 96 97 static void setup_iomux_uart(void) 98 { 99 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads)); 100 } 101 102 static void setup_iomux_enet(void) 103 { 104 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); 105 } 106 107 #ifdef CONFIG_FSL_ESDHC 108 struct fsl_esdhc_cfg usdhc_cfg[2] = { 109 {USDHC3_BASE_ADDR}, 110 {USDHC4_BASE_ADDR}, 111 }; 112 113 int board_mmc_get_env_dev(int devno) 114 { 115 return devno - 2; 116 } 117 118 int board_mmc_getcd(struct mmc *mmc) 119 { 120 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 121 int ret; 122 123 if (cfg->esdhc_base == USDHC3_BASE_ADDR) { 124 gpio_direction_input(IMX_GPIO_NR(6, 11)); 125 ret = !gpio_get_value(IMX_GPIO_NR(6, 11)); 126 } else /* Don't have the CD GPIO pin on board */ 127 ret = 1; 128 129 return ret; 130 } 131 132 int board_mmc_init(bd_t *bis) 133 { 134 int ret; 135 u32 index = 0; 136 137 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); 138 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 139 140 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { 141 switch (index) { 142 case 0: 143 imx_iomux_v3_setup_multiple_pads( 144 usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); 145 break; 146 case 1: 147 imx_iomux_v3_setup_multiple_pads( 148 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 149 break; 150 default: 151 printf("Warning: you configured more USDHC controllers" 152 "(%d) then supported by the board (%d)\n", 153 index + 1, CONFIG_SYS_FSL_USDHC_NUM); 154 return -EINVAL; 155 } 156 157 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); 158 if (ret) 159 return ret; 160 } 161 162 return 0; 163 } 164 #endif 165 166 #define MII_MMD_ACCESS_CTRL_REG 0xd 167 #define MII_MMD_ACCESS_ADDR_DATA_REG 0xe 168 #define MII_DBG_PORT_REG 0x1d 169 #define MII_DBG_PORT2_REG 0x1e 170 171 int fecmxc_mii_postcall(int phy) 172 { 173 unsigned short val; 174 175 /* 176 * Due to the i.MX6Q Armadillo2 board HW design,there is 177 * no 125Mhz clock input from SOC. In order to use RGMII, 178 * We need enable AR8031 ouput a 125MHz clk from CLK_25M 179 */ 180 miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x7); 181 miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, 0x8016); 182 miiphy_write("FEC", phy, MII_MMD_ACCESS_CTRL_REG, 0x4007); 183 miiphy_read("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, &val); 184 val &= 0xffe3; 185 val |= 0x18; 186 miiphy_write("FEC", phy, MII_MMD_ACCESS_ADDR_DATA_REG, val); 187 188 /* For the RGMII phy, we need enable tx clock delay */ 189 miiphy_write("FEC", phy, MII_DBG_PORT_REG, 0x5); 190 miiphy_read("FEC", phy, MII_DBG_PORT2_REG, &val); 191 val |= 0x0100; 192 miiphy_write("FEC", phy, MII_DBG_PORT2_REG, val); 193 194 miiphy_write("FEC", phy, MII_BMCR, 0xa100); 195 196 return 0; 197 } 198 199 int board_eth_init(bd_t *bis) 200 { 201 struct eth_device *dev; 202 int ret = cpu_eth_init(bis); 203 204 if (ret) 205 return ret; 206 207 dev = eth_get_dev_by_name("FEC"); 208 if (!dev) { 209 printf("FEC MXC: Unable to get FEC device entry\n"); 210 return -EINVAL; 211 } 212 213 ret = fecmxc_register_mii_postcall(dev, fecmxc_mii_postcall); 214 if (ret) { 215 printf("FEC MXC: Unable to register FEC mii postcall\n"); 216 return ret; 217 } 218 219 return 0; 220 } 221 222 #ifdef CONFIG_USB_EHCI_MX6 223 #define USB_OTHERREGS_OFFSET 0x800 224 #define UCTRL_PWR_POL (1 << 9) 225 226 static iomux_v3_cfg_t const usb_otg_pads[] = { 227 MX6_PAD_EIM_D22__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL), 228 MX6_PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL), 229 }; 230 231 static void setup_usb(void) 232 { 233 imx_iomux_v3_setup_multiple_pads(usb_otg_pads, 234 ARRAY_SIZE(usb_otg_pads)); 235 236 /* 237 * set daisy chain for otg_pin_id on 6q. 238 * for 6dl, this bit is reserved 239 */ 240 imx_iomux_set_gpr_register(1, 13, 1, 1); 241 } 242 243 int board_ehci_hcd_init(int port) 244 { 245 u32 *usbnc_usb_ctrl; 246 247 if (port > 0) 248 return -EINVAL; 249 250 usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + 251 port * 4); 252 253 setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); 254 255 return 0; 256 } 257 #endif 258 259 int board_early_init_f(void) 260 { 261 setup_iomux_uart(); 262 setup_iomux_enet(); 263 264 return 0; 265 } 266 267 int board_init(void) 268 { 269 /* address of boot parameters */ 270 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 271 272 #ifdef CONFIG_USB_EHCI_MX6 273 setup_usb(); 274 #endif 275 276 return 0; 277 } 278 279 int checkboard(void) 280 { 281 #ifdef CONFIG_MX6DL 282 puts("Board: MX6DL-Armadillo2\n"); 283 #else 284 puts("Board: MX6Q-Armadillo2\n"); 285 #endif 286 287 return 0; 288 } 289