board/ccv/xpress/xpress.c

   1 /*
   2  * Copyright (C) 2015-2016 Stefan Roese <sr@denx.de>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <asm/arch/clock.h>
   8 #include <asm/arch/iomux.h>
   9 #include <asm/arch/imx-regs.h>
  10 #include <asm/arch/crm_regs.h>
  11 #include <asm/arch/mx6ul_pins.h>
  12 #include <asm/arch/mx6-pins.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/gpio.h>
  15 #include <asm/imx-common/iomux-v3.h>
  16 #include <asm/imx-common/boot_mode.h>
  17 #include <asm/imx-common/mxc_i2c.h>
  18 #include <asm/io.h>
  19 #include <common.h>
  20 #include <fsl_esdhc.h>
  21 #include <i2c.h>
  22 #include <miiphy.h>
  23 #include <mmc.h>
  24 #include <netdev.h>
  25 #include <usb.h>
  26 #include <usb/ehci-ci.h>
  27
  28 DECLARE_GLOBAL_DATA_PTR;
  29
  30 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
  31         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  32         PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  33
  34 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |             \
  35         PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |               \
  36         PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  37
  38 #define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
  39         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  40         PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  41         PAD_CTL_ODE)
  42
  43 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
  44         PAD_CTL_SPEED_HIGH   |                                  \
  45         PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST)
  46
  47 #define MDIO_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
  48         PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST | PAD_CTL_ODE)
  49
  50 #define ENET_CLK_PAD_CTRL  (PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST)
  51
  52 #define ENET_RX_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |          \
  53         PAD_CTL_SPEED_HIGH   | PAD_CTL_SRE_FAST)
  54
  55 #define OTGID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |             \
  56         PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW |                \
  57         PAD_CTL_DSE_80ohm | PAD_CTL_HYS |                       \
  58         PAD_CTL_SRE_FAST)
  59
  60 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  61
  62 static struct i2c_pads_info i2c_pad_info1 = {
  63         .scl = {
  64                 .i2c_mode =  MX6_PAD_GPIO1_IO02__I2C1_SCL | PC,
  65                 .gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02 | PC,
  66                 .gp = IMX_GPIO_NR(1, 2),
  67         },
  68         .sda = {
  69                 .i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC,
  70                 .gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC,
  71                 .gp = IMX_GPIO_NR(1, 3),
  72         },
  73 };
  74
  75 static struct i2c_pads_info i2c_pad_info2 = {
  76         .scl = {
  77                 .i2c_mode =  MX6_PAD_GPIO1_IO00__I2C2_SCL | PC,
  78                 .gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO00 | PC,
  79                 .gp = IMX_GPIO_NR(1, 0),
  80         },
  81         .sda = {
  82                 .i2c_mode = MX6_PAD_GPIO1_IO01__I2C2_SDA | PC,
  83                 .gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO01 | PC,
  84                 .gp = IMX_GPIO_NR(1, 1),
  85         },
  86 };
  87
  88 static struct i2c_pads_info i2c_pad_info4 = {
  89         .scl = {
  90                 .i2c_mode =  MX6_PAD_UART2_TX_DATA__I2C4_SCL | PC,
  91                 .gpio_mode = MX6_PAD_UART2_TX_DATA__GPIO1_IO20 | PC,
  92                 .gp = IMX_GPIO_NR(1, 20),
  93         },
  94         .sda = {
  95                 .i2c_mode = MX6_PAD_UART2_RX_DATA__I2C4_SDA | PC,
  96                 .gpio_mode = MX6_PAD_UART2_RX_DATA__GPIO1_IO21 | PC,
  97                 .gp = IMX_GPIO_NR(1, 21),
  98         },
  99 };
 100
 101 int dram_init(void)
 102 {
 103         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
 104
 105         return 0;
 106 }
 107
 108 static iomux_v3_cfg_t const uart1_pads[] = {
 109         MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 110         MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 111 };
 112
 113 static iomux_v3_cfg_t const uart4_pads[] = {
 114         MX6_PAD_UART4_TX_DATA__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 115         MX6_PAD_UART4_RX_DATA__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 116 };
 117
 118 static iomux_v3_cfg_t const uart5_pads[] = {
 119         MX6_PAD_GPIO1_IO04__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 120         MX6_PAD_GPIO1_IO05__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 121         MX6_PAD_GPIO1_IO09__UART5_DCE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL),
 122         MX6_PAD_GPIO1_IO08__UART5_DCE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL),
 123 };
 124
 125 static iomux_v3_cfg_t const uart8_pads[] = {
 126         MX6_PAD_ENET2_TX_DATA1__UART8_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 127         MX6_PAD_ENET2_TX_EN__UART8_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 128         MX6_PAD_ENET2_TX_CLK__UART8_DCE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL),
 129         MX6_PAD_ENET2_RX_ER__UART8_DCE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL),
 130 };
 131
 132 static void setup_iomux_uart(void)
 133 {
 134         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 135         imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
 136         imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
 137         imx_iomux_v3_setup_multiple_pads(uart8_pads, ARRAY_SIZE(uart8_pads));
 138 }
 139
 140 /* eMMC on USDHC2 */
 141 static iomux_v3_cfg_t const usdhc2_pads[] = {
 142         MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 143         MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 144         MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 145         MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 146         MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 147         MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 148         MX6_PAD_NAND_DATA04__USDHC2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 149         MX6_PAD_NAND_DATA05__USDHC2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 150         MX6_PAD_NAND_DATA06__USDHC2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 151         MX6_PAD_NAND_DATA07__USDHC2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 152
 153         /*
 154          * RST_B
 155          */
 156         MX6_PAD_NAND_ALE__USDHC2_RESET_B | MUX_PAD_CTRL(NO_PAD_CTRL),
 157 };
 158
 159 static struct fsl_esdhc_cfg usdhc_cfg = {
 160         .esdhc_base = USDHC2_BASE_ADDR,
 161         .max_bus_width = 8,
 162 };
 163
 164 #define USDHC2_PWR_GPIO IMX_GPIO_NR(1, 9)
 165
 166 int board_mmc_getcd(struct mmc *mmc)
 167 {
 168         /* eMMC is always present */
 169         return 1;
 170 }
 171
 172 int board_mmc_init(bd_t *bis)
 173 {
 174         imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 175
 176         usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 177
 178         return fsl_esdhc_initialize(bis, &usdhc_cfg);
 179 }
 180
 181 #define USB_OTHERREGS_OFFSET    0x800
 182 #define UCTRL_PWR_POL           (1 << 9)
 183
 184 static iomux_v3_cfg_t const usb_otg_pads[] = {
 185         /* OTG1 */
 186         MX6_PAD_SD1_CMD__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
 187         MX6_PAD_SD1_DATA0__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTGID_PAD_CTRL),
 188         /* OTG2 */
 189         MX6_PAD_SD1_DATA1__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
 190         MX6_PAD_SD1_DATA3__ANATOP_OTG2_ID | MUX_PAD_CTRL(OTGID_PAD_CTRL),
 191 };
 192
 193 static void setup_usb(void)
 194 {
 195         imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
 196                                          ARRAY_SIZE(usb_otg_pads));
 197 }
 198
 199 int board_usb_phy_mode(int port)
 200 {
 201         if (port == 1)
 202                 return USB_INIT_HOST;
 203         else
 204                 return usb_phy_mode(port);
 205 }
 206
 207 int board_ehci_hcd_init(int port)
 208 {
 209         u32 *usbnc_usb_ctrl;
 210
 211         if (port > 1)
 212                 return -EINVAL;
 213
 214         usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
 215                                  port * 4);
 216
 217         /* Set Power polarity */
 218         setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
 219
 220         return 0;
 221 }
 222
 223 static iomux_v3_cfg_t const fec1_pads[] = {
 224         MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
 225         MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
 226         MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 227         MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 228         MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 229         MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
 230         MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 231         MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 232         MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
 233         MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 234
 235         /* ENET1 reset */
 236         MX6_PAD_CSI_MCLK__GPIO4_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
 237         /* ENET1 interrupt */
 238         MX6_PAD_CSI_PIXCLK__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
 239 };
 240
 241 #define ENET_PHY_RESET_GPIO IMX_GPIO_NR(4, 17)
 242
 243 int board_eth_init(bd_t *bis)
 244 {
 245         int ret;
 246
 247         imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
 248
 249         /* Reset LAN8742 PHY */
 250         ret = gpio_request(ENET_PHY_RESET_GPIO, "phy-reset");
 251         if (!ret)
 252                 gpio_direction_output(ENET_PHY_RESET_GPIO , 0);
 253         mdelay(10);
 254         gpio_set_value(ENET_PHY_RESET_GPIO, 1);
 255         mdelay(10);
 256
 257         return cpu_eth_init(bis);
 258 }
 259
 260 static int setup_fec(int fec_id)
 261 {
 262         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 263         int ret;
 264
 265         /*
 266          * Use 50M anatop loopback REF_CLK1 for ENET1,
 267          * clear gpr1[13], set gpr1[17].
 268          */
 269         clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
 270                         IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
 271
 272         ret = enable_fec_anatop_clock(fec_id, ENET_50MHZ);
 273         if (ret)
 274                 return ret;
 275
 276         enable_enet_clk(1);
 277
 278         return 0;
 279 }
 280
 281 int board_phy_config(struct phy_device *phydev)
 282 {
 283         if (phydev->drv->config)
 284                 phydev->drv->config(phydev);
 285
 286         return 0;
 287 }
 288
 289 int board_early_init_f(void)
 290 {
 291         setup_iomux_uart();
 292
 293         return 0;
 294 }
 295
 296 int board_init(void)
 297 {
 298         /* Address of boot parameters */
 299         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 300
 301         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 302         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 303         setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4);
 304
 305         setup_fec(CONFIG_FEC_ENET_DEV);
 306
 307         setup_usb();
 308
 309         return 0;
 310 }
 311
 312 static const struct boot_mode board_boot_modes[] = {
 313         /* 8 bit bus width */
 314         {"emmc", MAKE_CFGVAL(0x60, 0x28, 0x00, 0x00)},
 315         { NULL, 0 },
 316 };
 317
 318 int board_late_init(void)
 319 {
 320         add_board_boot_modes(board_boot_modes);
 321         setenv("board_name", "xpress");
 322
 323         return 0;
 324 }
 325
 326 int checkboard(void)
 327 {
 328         puts("Board: CCV-EVA xPress\n");
 329
 330         return 0;
 331 }