1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2015-2016 Stefan Roese <sr (at) denx.de> 4 */ 5 6 #include <asm/arch/clock.h> 7 #include <asm/arch/iomux.h> 8 #include <asm/arch/imx-regs.h> 9 #include <asm/arch/crm_regs.h> 10 #include <asm/arch/mx6ul_pins.h> 11 #include <asm/arch/mx6-pins.h> 12 #include <asm/arch/sys_proto.h> 13 #include <asm/gpio.h> 14 #include <asm/mach-imx/iomux-v3.h> 15 #include <asm/mach-imx/boot_mode.h> 16 #include <asm/mach-imx/mxc_i2c.h> 17 #include <asm/io.h> 18 #include <common.h> 19 #include <fsl_esdhc.h> 20 #include <i2c.h> 21 #include <miiphy.h> 22 #include <mmc.h> 23 #include <netdev.h> 24 #include <usb.h> 25 #include <usb/ehci-ci.h> 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 30 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ 31 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 32 33 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 34 PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ 35 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 36 37 #define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 38 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ 39 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 40 PAD_CTL_ODE) 41 42 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ 43 PAD_CTL_SPEED_HIGH | \ 44 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST) 45 46 #define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ 47 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) 48 49 #define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 50 51 #define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 52 PAD_CTL_SPEED_HIGH | PAD_CTL_SRE_FAST) 53 54 #define OTGID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 55 PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ 56 PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \ 57 PAD_CTL_SRE_FAST) 58 59 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) 60 61 static struct i2c_pads_info i2c_pad_info1 = { 62 .scl = { 63 .i2c_mode = MX6_PAD_GPIO1_IO02__I2C1_SCL | PC, 64 .gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02 | PC, 65 .gp = IMX_GPIO_NR(1, 2), 66 }, 67 .sda = { 68 .i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC, 69 .gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC, 70 .gp = IMX_GPIO_NR(1, 3), 71 }, 72 }; 73 74 static struct i2c_pads_info i2c_pad_info2 = { 75 .scl = { 76 .i2c_mode = MX6_PAD_GPIO1_IO00__I2C2_SCL | PC, 77 .gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO00 | PC, 78 .gp = IMX_GPIO_NR(1, 0), 79 }, 80 .sda = { 81 .i2c_mode = MX6_PAD_GPIO1_IO01__I2C2_SDA | PC, 82 .gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO01 | PC, 83 .gp = IMX_GPIO_NR(1, 1), 84 }, 85 }; 86 87 static struct i2c_pads_info i2c_pad_info4 = { 88 .scl = { 89 .i2c_mode = MX6_PAD_UART2_TX_DATA__I2C4_SCL | PC, 90 .gpio_mode = MX6_PAD_UART2_TX_DATA__GPIO1_IO20 | PC, 91 .gp = IMX_GPIO_NR(1, 20), 92 }, 93 .sda = { 94 .i2c_mode = MX6_PAD_UART2_RX_DATA__I2C4_SDA | PC, 95 .gpio_mode = MX6_PAD_UART2_RX_DATA__GPIO1_IO21 | PC, 96 .gp = IMX_GPIO_NR(1, 21), 97 }, 98 }; 99 100 int dram_init(void) 101 { 102 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 103 104 return 0; 105 } 106 107 static iomux_v3_cfg_t const uart1_pads[] = { 108 MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 109 MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 110 MX6_PAD_UART1_CTS_B__UART1_DCE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL), 111 MX6_PAD_UART1_RTS_B__UART1_DCE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL), 112 }; 113 114 static iomux_v3_cfg_t const uart4_pads[] = { 115 MX6_PAD_UART4_TX_DATA__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 116 MX6_PAD_UART4_RX_DATA__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 117 }; 118 119 static iomux_v3_cfg_t const uart5_pads[] = { 120 MX6_PAD_GPIO1_IO04__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 121 MX6_PAD_GPIO1_IO05__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 122 MX6_PAD_GPIO1_IO09__UART5_DCE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL), 123 MX6_PAD_GPIO1_IO08__UART5_DCE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL), 124 }; 125 126 static iomux_v3_cfg_t const uart7_pads[] = { 127 MX6_PAD_ENET2_RX_EN__UART7_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 128 MX6_PAD_ENET2_TX_DATA0__UART7_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 129 }; 130 131 static iomux_v3_cfg_t const uart8_pads[] = { 132 MX6_PAD_LCD_DATA20__UART8_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 133 MX6_PAD_LCD_DATA21__UART8_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 134 }; 135 136 static void setup_iomux_uart(void) 137 { 138 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 139 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads)); 140 imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads)); 141 imx_iomux_v3_setup_multiple_pads(uart7_pads, ARRAY_SIZE(uart7_pads)); 142 imx_iomux_v3_setup_multiple_pads(uart8_pads, ARRAY_SIZE(uart8_pads)); 143 } 144 145 /* eMMC on USDHC2 */ 146 static iomux_v3_cfg_t const usdhc2_pads[] = { 147 MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 148 MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 149 MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 150 MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 151 MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 152 MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 153 MX6_PAD_NAND_DATA04__USDHC2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 154 MX6_PAD_NAND_DATA05__USDHC2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 155 MX6_PAD_NAND_DATA06__USDHC2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 156 MX6_PAD_NAND_DATA07__USDHC2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 157 158 /* 159 * RST_B 160 */ 161 MX6_PAD_NAND_ALE__USDHC2_RESET_B | MUX_PAD_CTRL(NO_PAD_CTRL), 162 }; 163 164 static struct fsl_esdhc_cfg usdhc_cfg = { 165 .esdhc_base = USDHC2_BASE_ADDR, 166 .max_bus_width = 8, 167 }; 168 169 #define USDHC2_PWR_GPIO IMX_GPIO_NR(1, 9) 170 171 int board_mmc_getcd(struct mmc *mmc) 172 { 173 /* eMMC is always present */ 174 return 1; 175 } 176 177 int board_mmc_init(bd_t *bis) 178 { 179 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 180 181 usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 182 183 return fsl_esdhc_initialize(bis, &usdhc_cfg); 184 } 185 186 #define USB_OTHERREGS_OFFSET 0x800 187 #define UCTRL_PWR_POL (1 << 9) 188 189 static iomux_v3_cfg_t const usb_otg_pads[] = { 190 /* OTG1 */ 191 MX6_PAD_SD1_CMD__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL), 192 MX6_PAD_SD1_DATA0__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTGID_PAD_CTRL), 193 /* OTG2 */ 194 MX6_PAD_SD1_DATA1__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL), 195 MX6_PAD_SD1_DATA3__ANATOP_OTG2_ID | MUX_PAD_CTRL(OTGID_PAD_CTRL), 196 }; 197 198 static void setup_usb(void) 199 { 200 imx_iomux_v3_setup_multiple_pads(usb_otg_pads, 201 ARRAY_SIZE(usb_otg_pads)); 202 } 203 204 int board_usb_phy_mode(int port) 205 { 206 if (port == 1) 207 return USB_INIT_HOST; 208 else 209 return usb_phy_mode(port); 210 } 211 212 int board_ehci_hcd_init(int port) 213 { 214 u32 *usbnc_usb_ctrl; 215 216 if (port > 1) 217 return -EINVAL; 218 219 usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + 220 port * 4); 221 222 /* Set Power polarity */ 223 setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); 224 225 return 0; 226 } 227 228 static iomux_v3_cfg_t const fec1_pads[] = { 229 MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL), 230 MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 231 MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), 232 MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), 233 MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 234 MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL), 235 MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), 236 MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), 237 MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), 238 MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 239 240 /* ENET1 reset */ 241 MX6_PAD_CSI_MCLK__GPIO4_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL), 242 /* ENET1 interrupt */ 243 MX6_PAD_CSI_PIXCLK__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL), 244 }; 245 246 #define ENET_PHY_RESET_GPIO IMX_GPIO_NR(4, 17) 247 248 int board_eth_init(bd_t *bis) 249 { 250 int ret; 251 252 imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); 253 254 /* Reset LAN8742 PHY */ 255 ret = gpio_request(ENET_PHY_RESET_GPIO, "phy-reset"); 256 if (!ret) 257 gpio_direction_output(ENET_PHY_RESET_GPIO , 0); 258 mdelay(10); 259 gpio_set_value(ENET_PHY_RESET_GPIO, 1); 260 mdelay(10); 261 262 return cpu_eth_init(bis); 263 } 264 265 static int setup_fec(int fec_id) 266 { 267 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; 268 int ret; 269 270 /* 271 * Use 50M anatop loopback REF_CLK1 for ENET1, 272 * clear gpr1[13], set gpr1[17]. 273 */ 274 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 275 IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK); 276 277 ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ); 278 if (ret) 279 return ret; 280 281 enable_enet_clk(1); 282 283 return 0; 284 } 285 286 int board_phy_config(struct phy_device *phydev) 287 { 288 if (phydev->drv->config) 289 phydev->drv->config(phydev); 290 291 return 0; 292 } 293 294 int board_early_init_f(void) 295 { 296 setup_iomux_uart(); 297 298 return 0; 299 } 300 301 int board_init(void) 302 { 303 /* Address of boot parameters */ 304 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 305 306 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); 307 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 308 setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4); 309 310 setup_fec(CONFIG_FEC_ENET_DEV); 311 312 setup_usb(); 313 314 return 0; 315 } 316 317 static const struct boot_mode board_boot_modes[] = { 318 /* 8 bit bus width */ 319 {"emmc", MAKE_CFGVAL(0x60, 0x28, 0x00, 0x00)}, 320 { NULL, 0 }, 321 }; 322 323 int board_late_init(void) 324 { 325 add_board_boot_modes(board_boot_modes); 326 env_set("board_name", "xpress"); 327 328 return 0; 329 } 330 331 int checkboard(void) 332 { 333 puts("Board: CCV-EVA xPress\n"); 334 335 return 0; 336 } 337
