1 /* 2 * Copyright (C) 2015 Technexion Ltd. 3 * 4 * Author: Richard Hu <richard.hu@technexion.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <asm/arch/clock.h> 10 #include <asm/arch/iomux.h> 11 #include <asm/arch/imx-regs.h> 12 #include <asm/arch/crm_regs.h> 13 #include <asm/arch/mx6-pins.h> 14 #include <asm/arch/sys_proto.h> 15 #include <asm/gpio.h> 16 #include <asm/imx-common/iomux-v3.h> 17 #include <asm/imx-common/mxc_i2c.h> 18 #include <asm/io.h> 19 #include <common.h> 20 #include <miiphy.h> 21 #include <netdev.h> 22 #include <fsl_esdhc.h> 23 #include <i2c.h> 24 #include <linux/sizes.h> 25 #include <usb.h> 26 #include <power/pmic.h> 27 #include <power/pfuze3000_pmic.h> 28 #include "../../freescale/common/pfuze.h" 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 33 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ 34 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 35 36 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 37 PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ 38 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 39 40 #define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 41 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ 42 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ 43 PAD_CTL_ODE) 44 45 #define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ 46 PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \ 47 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 48 49 #define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ 50 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) 51 52 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ 53 PAD_CTL_SPEED_HIGH | \ 54 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST) 55 56 #define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) 57 58 #define RMII_PHY_RESET IMX_GPIO_NR(1, 28) 59 60 #ifdef CONFIG_SYS_I2C_MXC 61 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) 62 /* I2C2 for PMIC */ 63 struct i2c_pads_info i2c_pad_info1 = { 64 .scl = { 65 .i2c_mode = MX6_PAD_GPIO1_IO02__I2C1_SCL | PC, 66 .gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02 | PC, 67 .gp = IMX_GPIO_NR(1, 2), 68 }, 69 .sda = { 70 .i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC, 71 .gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC, 72 .gp = IMX_GPIO_NR(1, 3), 73 }, 74 }; 75 #endif 76 77 static iomux_v3_cfg_t const fec_pads[] = { 78 MX6_PAD_ENET1_TX_EN__ENET2_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL), 79 MX6_PAD_ENET1_TX_DATA1__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL), 80 MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), 81 MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), 82 MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL), 83 MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 84 MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL), 85 MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL), 86 MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), 87 MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL), 88 MX6_PAD_UART4_TX_DATA__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), 89 }; 90 91 static void setup_iomux_fec(void) 92 { 93 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads)); 94 } 95 96 int board_eth_init(bd_t *bis) 97 { 98 setup_iomux_fec(); 99 100 gpio_direction_output(RMII_PHY_RESET, 0); 101 /* 102 * According to KSZ8081MNX-RNB manual: 103 * For warm reset, the reset (RST#) pin should be asserted low for a 104 * minimum of 500μs. The strap-in pin values are read and updated 105 * at the de-assertion of reset. 106 */ 107 udelay(500); 108 109 gpio_direction_output(RMII_PHY_RESET, 1); 110 /* 111 * According to KSZ8081MNX-RNB manual: 112 * After the de-assertion of reset, wait a minimum of 100μs before 113 * starting programming on the MIIM (MDC/MDIO) interface. 114 */ 115 udelay(100); 116 117 return fecmxc_initialize(bis); 118 } 119 120 static int setup_fec(void) 121 { 122 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; 123 int ret; 124 125 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK, 126 IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK); 127 128 ret = enable_fec_anatop_clock(1, ENET_50MHZ); 129 if (ret) 130 return ret; 131 132 enable_enet_clk(1); 133 134 return 0; 135 } 136 137 int board_phy_config(struct phy_device *phydev) 138 { 139 phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190); 140 141 if (phydev->drv->config) 142 phydev->drv->config(phydev); 143 144 return 0; 145 } 146 147 int dram_init(void) 148 { 149 gd->ram_size = imx_ddr_size(); 150 151 return 0; 152 } 153 154 static iomux_v3_cfg_t const uart6_pads[] = { 155 MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), 156 MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), 157 }; 158 159 static iomux_v3_cfg_t const usdhc1_pads[] = { 160 MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 161 MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 162 MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 163 MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 164 MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 165 MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 166 MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 167 MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 168 MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 169 MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 170 }; 171 172 #define USB_OTHERREGS_OFFSET 0x800 173 #define UCTRL_PWR_POL (1 << 9) 174 175 static iomux_v3_cfg_t const usb_otg_pad[] = { 176 MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL), 177 }; 178 179 static void setup_iomux_uart(void) 180 { 181 imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads)); 182 } 183 184 static void setup_usb(void) 185 { 186 imx_iomux_v3_setup_multiple_pads(usb_otg_pad, ARRAY_SIZE(usb_otg_pad)); 187 } 188 189 static struct fsl_esdhc_cfg usdhc_cfg[1] = { 190 {USDHC1_BASE_ADDR}, 191 }; 192 193 int board_mmc_getcd(struct mmc *mmc) 194 { 195 return 1; 196 } 197 198 int board_mmc_init(bd_t *bis) 199 { 200 imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); 201 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); 202 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); 203 } 204 205 int board_early_init_f(void) 206 { 207 setup_iomux_uart(); 208 209 return 0; 210 } 211 212 #ifdef CONFIG_POWER 213 #define I2C_PMIC 0 214 static struct pmic *pfuze; 215 int power_init_board(void) 216 { 217 int ret; 218 unsigned int reg, rev_id; 219 220 ret = power_pfuze3000_init(I2C_PMIC); 221 if (ret) 222 return ret; 223 224 pfuze = pmic_get("PFUZE3000"); 225 ret = pmic_probe(pfuze); 226 if (ret) 227 return ret; 228 229 pmic_reg_read(pfuze, PFUZE3000_DEVICEID, ®); 230 pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id); 231 printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id); 232 233 /* disable Low Power Mode during standby mode */ 234 pmic_reg_read(pfuze, PFUZE3000_LDOGCTL, ®); 235 reg |= 0x1; 236 pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, reg); 237 238 /* SW1B step ramp up time from 2us to 4us/25mV */ 239 pmic_reg_write(pfuze, PFUZE3000_SW1BCONF, 0x40); 240 241 /* SW1B mode to APS/PFM */ 242 pmic_reg_write(pfuze, PFUZE3000_SW1BMODE, 0xc); 243 244 /* SW1B standby voltage set to 0.975V */ 245 pmic_reg_write(pfuze, PFUZE3000_SW1BSTBY, 0xb); 246 247 return 0; 248 } 249 #endif 250 251 int board_usb_phy_mode(int port) 252 { 253 if (port == 1) 254 return USB_INIT_HOST; 255 else 256 return USB_INIT_DEVICE; 257 } 258 259 int board_ehci_hcd_init(int port) 260 { 261 u32 *usbnc_usb_ctrl; 262 263 if (port > 1) 264 return -EINVAL; 265 266 usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + 267 port * 4); 268 269 /* Set Power polarity */ 270 setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); 271 272 return 0; 273 } 274 275 int board_init(void) 276 { 277 /* Address of boot parameters */ 278 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 279 280 #ifdef CONFIG_SYS_I2C_MXC 281 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); 282 #endif 283 284 setup_fec(); 285 setup_usb(); 286 287 return 0; 288 } 289 290 int checkboard(void) 291 { 292 puts("Board: PICO-IMX6UL-EMMC\n"); 293 294 return 0; 295 } 296