1 /* 2 * Copyright (C) 2014, Barco (www.barco.com) 3 * Copyright (C) 2014 Stefan Roese <sr@denx.de> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <asm/arch/iomux.h> 10 #include <asm/arch/mx6-pins.h> 11 #include <asm/gpio.h> 12 #include <asm/mach-imx/iomux-v3.h> 13 #include <asm/mach-imx/mxc_i2c.h> 14 #include <miiphy.h> 15 #include <micrel.h> 16 17 #include "platinum.h" 18 19 iomux_v3_cfg_t const ecspi1_pads[] = { 20 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(ECSPI1_PAD_CLK), 21 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(ECSPI_PAD_MISO), 22 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(ECSPI_PAD_MOSI), 23 MX6_PAD_CSI0_DAT7__ECSPI1_SS0 | MUX_PAD_CTRL(ECSPI_PAD_SS), 24 /* non mounted spi nor flash for booting */ 25 MX6_PAD_EIM_D19__ECSPI1_SS1 | MUX_PAD_CTRL(NO_PAD_CTRL), 26 MX6_PAD_EIM_D24__ECSPI1_SS2 | MUX_PAD_CTRL(ECSPI_PAD_SS), 27 MX6_PAD_EIM_D25__ECSPI1_SS3 | MUX_PAD_CTRL(ECSPI_PAD_SS), 28 }; 29 30 iomux_v3_cfg_t const ecspi2_pads[] = { 31 MX6_PAD_EIM_CS0__ECSPI2_SCLK | MUX_PAD_CTRL(ECSPI2_PAD_CLK), 32 MX6_PAD_EIM_OE__ECSPI2_MISO | MUX_PAD_CTRL(ECSPI_PAD_MISO), 33 MX6_PAD_EIM_CS1__ECSPI2_MOSI | MUX_PAD_CTRL(ECSPI_PAD_MOSI), 34 MX6_PAD_EIM_RW__ECSPI2_SS0 | MUX_PAD_CTRL(ECSPI_PAD_SS), 35 }; 36 37 iomux_v3_cfg_t const enet_pads1[] = { 38 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), 39 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), 40 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 41 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 42 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 43 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 44 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 45 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 46 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), 47 /* pin 35 - 1 (PHY_AD2) on reset */ 48 MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL), 49 /* pin 32 - 1 - (MODE0) all */ 50 MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL), 51 /* pin 31 - 1 - (MODE1) all */ 52 MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL), 53 /* pin 28 - 1 - (MODE2) all */ 54 MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), 55 /* pin 27 - 1 - (MODE3) all */ 56 MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL), 57 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ 58 MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL), 59 /* pin 42 PHY nRST */ 60 MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL), 61 }; 62 63 iomux_v3_cfg_t const enet_pads2[] = { 64 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), 65 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), 66 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), 67 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), 68 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), 69 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), 70 }; 71 72 iomux_v3_cfg_t const uart1_pads[] = { 73 MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 74 MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 75 }; 76 77 iomux_v3_cfg_t const uart2_pads[] = { 78 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 79 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 80 MX6_PAD_EIM_D28__UART2_DTE_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL), 81 MX6_PAD_EIM_D29__UART2_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL), 82 }; 83 84 iomux_v3_cfg_t const uart4_pads[] = { 85 MX6_PAD_CSI0_DAT12__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 86 MX6_PAD_CSI0_DAT13__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), 87 MX6_PAD_CSI0_DAT16__UART4_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL), 88 MX6_PAD_CSI0_DAT17__UART4_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL), 89 }; 90 91 struct i2c_pads_info i2c_pad_info0 = { 92 .scl = { 93 .i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC_SCL, 94 .gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC_SCL, 95 .gp = IMX_GPIO_NR(5, 27) 96 }, 97 .sda = { 98 .i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC, 99 .gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC, 100 .gp = IMX_GPIO_NR(5, 26) 101 } 102 }; 103 104 struct i2c_pads_info i2c_pad_info2 = { 105 .scl = { 106 .i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC_SCL, 107 .gpio_mode = MX6_PAD_GPIO_3__GPIO1_IO03 | PC_SCL, 108 .gp = IMX_GPIO_NR(1, 3) 109 }, 110 .sda = { 111 .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | PC, 112 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC, 113 .gp = IMX_GPIO_NR(7, 11) 114 } 115 }; 116 117 /* 118 * This enet related pin-muxing and GPIO handling is done 119 * in SPL U-Boot. For early initialization. And to give the 120 * PHY some time to come out of reset before the U-Boot 121 * ethernet driver tries to access its registers via MDIO. 122 */ 123 int platinum_setup_enet(void) 124 { 125 gpio_direction_output(IMX_GPIO_NR(3, 23), 0); 126 gpio_direction_output(IMX_GPIO_NR(6, 30), 1); 127 gpio_direction_output(IMX_GPIO_NR(6, 25), 1); 128 gpio_direction_output(IMX_GPIO_NR(6, 27), 1); 129 gpio_direction_output(IMX_GPIO_NR(6, 28), 1); 130 gpio_direction_output(IMX_GPIO_NR(6, 29), 1); 131 imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1)); 132 gpio_direction_output(IMX_GPIO_NR(6, 24), 1); 133 134 /* Need delay 10ms according to KSZ9021 spec */ 135 mdelay(10); 136 gpio_set_value(IMX_GPIO_NR(3, 23), 1); 137 udelay(100); 138 139 imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2)); 140 141 return 0; 142 } 143 144 int platinum_setup_i2c(void) 145 { 146 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); 147 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); 148 149 return 0; 150 } 151 152 int platinum_setup_spi(void) 153 { 154 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); 155 imx_iomux_v3_setup_multiple_pads(ecspi2_pads, ARRAY_SIZE(ecspi2_pads)); 156 157 return 0; 158 } 159 160 int platinum_setup_uart(void) 161 { 162 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 163 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); 164 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads)); 165 166 return 0; 167 } 168 169 int platinum_phy_config(struct phy_device *phydev) 170 { 171 /* min rx data delay */ 172 ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 173 0x0); 174 /* min tx data delay */ 175 ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 176 0x0); 177 /* max rx/tx clock delay, min rx/tx control */ 178 ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 179 0xf0f0); 180 if (phydev->drv->config) 181 phydev->drv->config(phydev); 182 183 return 0; 184 } 185 186 int platinum_init_gpio(void) 187 { 188 /* Default GPIO's */ 189 /* Toggle CONFIG_n to reset fpga on every boot */ 190 gpio_direction_output(IMX_GPIO_NR(5, 18), 0); 191 /* Need delay >=2uS */ 192 udelay(3); 193 gpio_set_value(IMX_GPIO_NR(5, 18), 1); 194 195 /* Default pin 1,15 high - DLP_FLASH_WPZ */ 196 gpio_direction_output(IMX_GPIO_NR(1, 15), 1); 197 198 return 0; 199 } 200 201 int platinum_init_usb(void) 202 { 203 return 0; 204 } 205 206 int platinum_init_finished(void) 207 { 208 return 0; 209 } 210