board/boundary/nitrogen6x/nitrogen6x.c

   1 /*
   2  * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
   3  * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <asm/io.h>
  26 #include <asm/arch/clock.h>
  27 #include <asm/arch/imx-regs.h>
  28 #include <asm/arch/iomux.h>
  29 #include <asm/arch/sys_proto.h>
  30 #include <malloc.h>
  31 #include <asm/arch/mx6-pins.h>
  32 #include <asm/errno.h>
  33 #include <asm/gpio.h>
  34 #include <asm/imx-common/iomux-v3.h>
  35 #include <asm/imx-common/mxc_i2c.h>
  36 #include <asm/imx-common/boot_mode.h>
  37 #include <mmc.h>
  38 #include <fsl_esdhc.h>
  39 #include <micrel.h>
  40 #include <miiphy.h>
  41 #include <netdev.h>
  42 #include <linux/fb.h>
  43 #include <ipu_pixfmt.h>
  44 #include <asm/arch/crm_regs.h>
  45 #include <asm/arch/mxc_hdmi.h>
  46 #include <i2c.h>
  47
  48 DECLARE_GLOBAL_DATA_PTR;
  49
  50 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
  51         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |              \
  52         PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  53
  54 #define USDHC_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_SRE_FAST  | PAD_CTL_HYS)
  57
  58 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
  59         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED   |             \
  60         PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
  61
  62 #define SPI_PAD_CTRL (PAD_CTL_HYS |                             \
  63         PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |             \
  64         PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
  65
  66 #define BUTTON_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |            \
  67         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED   |             \
  68         PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
  69
  70 #define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
  71         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  72         PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  73         PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  74
  75 #define WEAK_PULLUP     (PAD_CTL_PKE | PAD_CTL_PUE |            \
  76         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  77         PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  78         PAD_CTL_SRE_SLOW)
  79
  80 #define WEAK_PULLDOWN   (PAD_CTL_PKE | PAD_CTL_PUE |            \
  81         PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |             \
  82         PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  83         PAD_CTL_SRE_SLOW)
  84
  85 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
  86
  87 int dram_init(void)
  88 {
  89         gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
  90
  91         return 0;
  92 }
  93
  94 iomux_v3_cfg_t const uart1_pads[] = {
  95         MX6_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
  96         MX6_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
  97 };
  98
  99 iomux_v3_cfg_t const uart2_pads[] = {
 100         MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
 101         MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
 102 };
 103
 104 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
 105
 106 /* I2C1, SGTL5000 */
 107 struct i2c_pads_info i2c_pad_info0 = {
 108         .scl = {
 109                 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
 110                 .gpio_mode = MX6_PAD_EIM_D21__GPIO_3_21 | PC,
 111                 .gp = IMX_GPIO_NR(3, 21)
 112         },
 113         .sda = {
 114                 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
 115                 .gpio_mode = MX6_PAD_EIM_D28__GPIO_3_28 | PC,
 116                 .gp = IMX_GPIO_NR(3, 28)
 117         }
 118 };
 119
 120 /* I2C2 Camera, MIPI */
 121 struct i2c_pads_info i2c_pad_info1 = {
 122         .scl = {
 123                 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
 124                 .gpio_mode = MX6_PAD_KEY_COL3__GPIO_4_12 | PC,
 125                 .gp = IMX_GPIO_NR(4, 12)
 126         },
 127         .sda = {
 128                 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
 129                 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC,
 130                 .gp = IMX_GPIO_NR(4, 13)
 131         }
 132 };
 133
 134 /* I2C3, J15 - RGB connector */
 135 struct i2c_pads_info i2c_pad_info2 = {
 136         .scl = {
 137                 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
 138                 .gpio_mode = MX6_PAD_GPIO_5__GPIO_1_5 | PC,
 139                 .gp = IMX_GPIO_NR(1, 5)
 140         },
 141         .sda = {
 142                 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
 143                 .gpio_mode = MX6_PAD_GPIO_16__GPIO_7_11 | PC,
 144                 .gp = IMX_GPIO_NR(7, 11)
 145         }
 146 };
 147
 148 iomux_v3_cfg_t const usdhc3_pads[] = {
 149         MX6_PAD_SD3_CLK__USDHC3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 150         MX6_PAD_SD3_CMD__USDHC3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 151         MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 152         MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 153         MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 154         MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 155         MX6_PAD_SD3_DAT5__GPIO_7_0    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 156 };
 157
 158 iomux_v3_cfg_t const usdhc4_pads[] = {
 159         MX6_PAD_SD4_CLK__USDHC4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 160         MX6_PAD_SD4_CMD__USDHC4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 161         MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 162         MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 163         MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 164         MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 165         MX6_PAD_NANDF_D6__GPIO_2_6    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 166 };
 167
 168 iomux_v3_cfg_t const enet_pads1[] = {
 169         MX6_PAD_ENET_MDIO__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
 170         MX6_PAD_ENET_MDC__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
 171         MX6_PAD_RGMII_TXC__ENET_RGMII_TXC       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 172         MX6_PAD_RGMII_TD0__ENET_RGMII_TD0       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 173         MX6_PAD_RGMII_TD1__ENET_RGMII_TD1       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 174         MX6_PAD_RGMII_TD2__ENET_RGMII_TD2       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 175         MX6_PAD_RGMII_TD3__ENET_RGMII_TD3       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 176         MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 177         MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 178         /* pin 35 - 1 (PHY_AD2) on reset */
 179         MX6_PAD_RGMII_RXC__GPIO_6_30            | MUX_PAD_CTRL(NO_PAD_CTRL),
 180         /* pin 32 - 1 - (MODE0) all */
 181         MX6_PAD_RGMII_RD0__GPIO_6_25            | MUX_PAD_CTRL(NO_PAD_CTRL),
 182         /* pin 31 - 1 - (MODE1) all */
 183         MX6_PAD_RGMII_RD1__GPIO_6_27            | MUX_PAD_CTRL(NO_PAD_CTRL),
 184         /* pin 28 - 1 - (MODE2) all */
 185         MX6_PAD_RGMII_RD2__GPIO_6_28            | MUX_PAD_CTRL(NO_PAD_CTRL),
 186         /* pin 27 - 1 - (MODE3) all */
 187         MX6_PAD_RGMII_RD3__GPIO_6_29            | MUX_PAD_CTRL(NO_PAD_CTRL),
 188         /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
 189         MX6_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL),
 190         /* pin 42 PHY nRST */
 191         MX6_PAD_EIM_D23__GPIO_3_23              | MUX_PAD_CTRL(NO_PAD_CTRL),
 192         MX6_PAD_ENET_RXD0__GPIO_1_27            | MUX_PAD_CTRL(NO_PAD_CTRL),
 193 };
 194
 195 iomux_v3_cfg_t const enet_pads2[] = {
 196         MX6_PAD_RGMII_RXC__ENET_RGMII_RXC       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 197         MX6_PAD_RGMII_RD0__ENET_RGMII_RD0       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 198         MX6_PAD_RGMII_RD1__ENET_RGMII_RD1       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 199         MX6_PAD_RGMII_RD2__ENET_RGMII_RD2       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 200         MX6_PAD_RGMII_RD3__ENET_RGMII_RD3       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 201         MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 202 };
 203
 204 /* wl1271 pads on nitrogen6x */
 205 iomux_v3_cfg_t const wl12xx_pads[] = {
 206         (MX6_PAD_NANDF_CS1__GPIO_6_14 & ~MUX_PAD_CTRL_MASK)
 207                 | MUX_PAD_CTRL(WEAK_PULLDOWN),
 208         (MX6_PAD_NANDF_CS2__GPIO_6_15 & ~MUX_PAD_CTRL_MASK)
 209                 | MUX_PAD_CTRL(OUTPUT_40OHM),
 210         (MX6_PAD_NANDF_CS3__GPIO_6_16 & ~MUX_PAD_CTRL_MASK)
 211                 | MUX_PAD_CTRL(OUTPUT_40OHM),
 212 };
 213 #define WL12XX_WL_IRQ_GP        IMX_GPIO_NR(6, 14)
 214 #define WL12XX_WL_ENABLE_GP     IMX_GPIO_NR(6, 15)
 215 #define WL12XX_BT_ENABLE_GP     IMX_GPIO_NR(6, 16)
 216
 217 /* Button assignments for J14 */
 218 static iomux_v3_cfg_t const button_pads[] = {
 219         /* Menu */
 220         MX6_PAD_NANDF_D1__GPIO_2_1      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 221         /* Back */
 222         MX6_PAD_NANDF_D2__GPIO_2_2      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 223         /* Labelled Search (mapped to Power under Android) */
 224         MX6_PAD_NANDF_D3__GPIO_2_3      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 225         /* Home */
 226         MX6_PAD_NANDF_D4__GPIO_2_4      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 227         /* Volume Down */
 228         MX6_PAD_GPIO_19__GPIO_4_5       | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 229         /* Volume Up */
 230         MX6_PAD_GPIO_18__GPIO_7_13      | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 231 };
 232
 233 static void setup_iomux_enet(void)
 234 {
 235         gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */
 236         gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */
 237         gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
 238         gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
 239         gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
 240         gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
 241         gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
 242         imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
 243         gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
 244
 245         /* Need delay 10ms according to KSZ9021 spec */
 246         udelay(1000 * 10);
 247         gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */
 248         gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
 249
 250         imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
 251 }
 252
 253 iomux_v3_cfg_t const usb_pads[] = {
 254         MX6_PAD_GPIO_17__GPIO_7_12 | MUX_PAD_CTRL(NO_PAD_CTRL),
 255 };
 256
 257 static void setup_iomux_uart(void)
 258 {
 259         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 260         imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
 261 }
 262
 263 #ifdef CONFIG_USB_EHCI_MX6
 264 int board_ehci_hcd_init(int port)
 265 {
 266         imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
 267
 268         /* Reset USB hub */
 269         gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
 270         mdelay(2);
 271         gpio_set_value(IMX_GPIO_NR(7, 12), 1);
 272
 273         return 0;
 274 }
 275 #endif
 276
 277 #ifdef CONFIG_FSL_ESDHC
 278 struct fsl_esdhc_cfg usdhc_cfg[2] = {
 279         {USDHC3_BASE_ADDR},
 280         {USDHC4_BASE_ADDR},
 281 };
 282
 283 int board_mmc_getcd(struct mmc *mmc)
 284 {
 285         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 286         int ret;
 287
 288         if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
 289                 gpio_direction_input(IMX_GPIO_NR(7, 0));
 290                 ret = !gpio_get_value(IMX_GPIO_NR(7, 0));
 291         } else {
 292                 gpio_direction_input(IMX_GPIO_NR(2, 6));
 293                 ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
 294         }
 295
 296         return ret;
 297 }
 298
 299 int board_mmc_init(bd_t *bis)
 300 {
 301         s32 status = 0;
 302         u32 index = 0;
 303
 304         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 305         usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 306
 307         usdhc_cfg[0].max_bus_width = 4;
 308         usdhc_cfg[1].max_bus_width = 4;
 309
 310         for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
 311                 switch (index) {
 312                 case 0:
 313                         imx_iomux_v3_setup_multiple_pads(
 314                                 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 315                         break;
 316                 case 1:
 317                        imx_iomux_v3_setup_multiple_pads(
 318                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 319                        break;
 320                 default:
 321                        printf("Warning: you configured more USDHC controllers"
 322                                "(%d) then supported by the board (%d)\n",
 323                                index + 1, CONFIG_SYS_FSL_USDHC_NUM);
 324                        return status;
 325                 }
 326
 327                 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
 328         }
 329
 330         return status;
 331 }
 332 #endif
 333
 334 #ifdef CONFIG_MXC_SPI
 335 iomux_v3_cfg_t const ecspi1_pads[] = {
 336         /* SS1 */
 337         MX6_PAD_EIM_D19__GPIO_3_19   | MUX_PAD_CTRL(SPI_PAD_CTRL),
 338         MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 339         MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 340         MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 341 };
 342
 343 void setup_spi(void)
 344 {
 345         gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
 346         imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
 347                                          ARRAY_SIZE(ecspi1_pads));
 348 }
 349 #endif
 350
 351 int board_phy_config(struct phy_device *phydev)
 352 {
 353         /* min rx data delay */
 354         ksz9021_phy_extended_write(phydev,
 355                         MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
 356         /* min tx data delay */
 357         ksz9021_phy_extended_write(phydev,
 358                         MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
 359         /* max rx/tx clock delay, min rx/tx control */
 360         ksz9021_phy_extended_write(phydev,
 361                         MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
 362         if (phydev->drv->config)
 363                 phydev->drv->config(phydev);
 364
 365         return 0;
 366 }
 367
 368 int board_eth_init(bd_t *bis)
 369 {
 370         uint32_t base = IMX_FEC_BASE;
 371         struct mii_dev *bus = NULL;
 372         struct phy_device *phydev = NULL;
 373         int ret;
 374
 375         setup_iomux_enet();
 376
 377 #ifdef CONFIG_FEC_MXC
 378         bus = fec_get_miibus(base, -1);
 379         if (!bus)
 380                 return 0;
 381         /* scan phy 4,5,6,7 */
 382         phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
 383         if (!phydev) {
 384                 free(bus);
 385                 return 0;
 386         }
 387         printf("using phy at %d\n", phydev->addr);
 388         ret  = fec_probe(bis, -1, base, bus, phydev);
 389         if (ret) {
 390                 printf("FEC MXC: %s:failed\n", __func__);
 391                 free(phydev);
 392                 free(bus);
 393         }
 394 #endif
 395         return 0;
 396 }
 397
 398 static void setup_buttons(void)
 399 {
 400         imx_iomux_v3_setup_multiple_pads(button_pads,
 401                                          ARRAY_SIZE(button_pads));
 402 }
 403
 404 #ifdef CONFIG_CMD_SATA
 405
 406 int setup_sata(void)
 407 {
 408         struct iomuxc_base_regs *const iomuxc_regs
 409                 = (struct iomuxc_base_regs *) IOMUXC_BASE_ADDR;
 410         int ret = enable_sata_clock();
 411         if (ret)
 412                 return ret;
 413
 414         clrsetbits_le32(&iomuxc_regs->gpr[13],
 415                         IOMUXC_GPR13_SATA_MASK,
 416                         IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
 417                         |IOMUXC_GPR13_SATA_PHY_7_SATA2M
 418                         |IOMUXC_GPR13_SATA_SPEED_3G
 419                         |(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
 420                         |IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
 421                         |IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
 422                         |IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
 423                         |IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
 424                         |IOMUXC_GPR13_SATA_PHY_1_SLOW);
 425
 426         return 0;
 427 }
 428 #endif
 429
 430 #if defined(CONFIG_VIDEO_IPUV3)
 431
 432 static iomux_v3_cfg_t const backlight_pads[] = {
 433         /* Backlight on RGB connector: J15 */
 434         MX6_PAD_SD1_DAT3__GPIO_1_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
 435 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
 436
 437         /* Backlight on LVDS connector: J6 */
 438         MX6_PAD_SD1_CMD__GPIO_1_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
 439 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
 440 };
 441
 442 static iomux_v3_cfg_t const rgb_pads[] = {
 443         MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
 444         MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
 445         MX6_PAD_DI0_PIN2__IPU1_DI0_PIN2,
 446         MX6_PAD_DI0_PIN3__IPU1_DI0_PIN3,
 447         MX6_PAD_DI0_PIN4__GPIO_4_20,
 448         MX6_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
 449         MX6_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
 450         MX6_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
 451         MX6_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
 452         MX6_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
 453         MX6_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
 454         MX6_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
 455         MX6_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
 456         MX6_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
 457         MX6_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
 458         MX6_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
 459         MX6_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
 460         MX6_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
 461         MX6_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
 462         MX6_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
 463         MX6_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
 464         MX6_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
 465         MX6_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
 466         MX6_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
 467         MX6_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
 468         MX6_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
 469         MX6_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
 470         MX6_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
 471         MX6_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
 472 };
 473
 474 struct display_info_t {
 475         int     bus;
 476         int     addr;
 477         int     pixfmt;
 478         int     (*detect)(struct display_info_t const *dev);
 479         void    (*enable)(struct display_info_t const *dev);
 480         struct  fb_videomode mode;
 481 };
 482
 483
 484 static int detect_hdmi(struct display_info_t const *dev)
 485 {
 486         struct hdmi_regs *hdmi  = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
 487         return readb(&hdmi->phy_stat0) & HDMI_PHY_HPD;
 488 }
 489
 490 static void enable_hdmi(struct display_info_t const *dev)
 491 {
 492         struct hdmi_regs *hdmi  = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
 493         u8 reg;
 494         printf("%s: setup HDMI monitor\n", __func__);
 495         reg = readb(&hdmi->phy_conf0);
 496         reg |= HDMI_PHY_CONF0_PDZ_MASK;
 497         writeb(reg, &hdmi->phy_conf0);
 498
 499         udelay(3000);
 500         reg |= HDMI_PHY_CONF0_ENTMDS_MASK;
 501         writeb(reg, &hdmi->phy_conf0);
 502         udelay(3000);
 503         reg |= HDMI_PHY_CONF0_GEN2_TXPWRON_MASK;
 504         writeb(reg, &hdmi->phy_conf0);
 505         writeb(HDMI_MC_PHYRSTZ_ASSERT, &hdmi->mc_phyrstz);
 506 }
 507
 508 static int detect_i2c(struct display_info_t const *dev)
 509 {
 510         return ((0 == i2c_set_bus_num(dev->bus))
 511                 &&
 512                 (0 == i2c_probe(dev->addr)));
 513 }
 514
 515 static void enable_lvds(struct display_info_t const *dev)
 516 {
 517         struct iomuxc *iomux = (struct iomuxc *)
 518                                 IOMUXC_BASE_ADDR;
 519         u32 reg = readl(&iomux->gpr[2]);
 520         reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
 521         writel(reg, &iomux->gpr[2]);
 522         gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
 523 }
 524
 525 static void enable_rgb(struct display_info_t const *dev)
 526 {
 527         imx_iomux_v3_setup_multiple_pads(
 528                 rgb_pads,
 529                  ARRAY_SIZE(rgb_pads));
 530         gpio_direction_output(RGB_BACKLIGHT_GP, 1);
 531 }
 532
 533 static struct display_info_t const displays[] = {{
 534         .bus    = -1,
 535         .addr   = 0,
 536         .pixfmt = IPU_PIX_FMT_RGB24,
 537         .detect = detect_hdmi,
 538         .enable = enable_hdmi,
 539         .mode   = {
 540                 .name           = "HDMI",
 541                 .refresh        = 60,
 542                 .xres           = 1024,
 543                 .yres           = 768,
 544                 .pixclock       = 15385,
 545                 .left_margin    = 220,
 546                 .right_margin   = 40,
 547                 .upper_margin   = 21,
 548                 .lower_margin   = 7,
 549                 .hsync_len      = 60,
 550                 .vsync_len      = 10,
 551                 .sync           = FB_SYNC_EXT,
 552                 .vmode          = FB_VMODE_NONINTERLACED
 553 } }, {
 554         .bus    = 2,
 555         .addr   = 0x4,
 556         .pixfmt = IPU_PIX_FMT_LVDS666,
 557         .detect = detect_i2c,
 558         .enable = enable_lvds,
 559         .mode   = {
 560                 .name           = "Hannstar-XGA",
 561                 .refresh        = 60,
 562                 .xres           = 1024,
 563                 .yres           = 768,
 564                 .pixclock       = 15385,
 565                 .left_margin    = 220,
 566                 .right_margin   = 40,
 567                 .upper_margin   = 21,
 568                 .lower_margin   = 7,
 569                 .hsync_len      = 60,
 570                 .vsync_len      = 10,
 571                 .sync           = FB_SYNC_EXT,
 572                 .vmode          = FB_VMODE_NONINTERLACED
 573 } }, {
 574         .bus    = 2,
 575         .addr   = 0x38,
 576         .pixfmt = IPU_PIX_FMT_LVDS666,
 577         .detect = detect_i2c,
 578         .enable = enable_lvds,
 579         .mode   = {
 580                 .name           = "wsvga-lvds",
 581                 .refresh        = 60,
 582                 .xres           = 1024,
 583                 .yres           = 600,
 584                 .pixclock       = 15385,
 585                 .left_margin    = 220,
 586                 .right_margin   = 40,
 587                 .upper_margin   = 21,
 588                 .lower_margin   = 7,
 589                 .hsync_len      = 60,
 590                 .vsync_len      = 10,
 591                 .sync           = FB_SYNC_EXT,
 592                 .vmode          = FB_VMODE_NONINTERLACED
 593 } }, {
 594         .bus    = 2,
 595         .addr   = 0x48,
 596         .pixfmt = IPU_PIX_FMT_RGB666,
 597         .detect = detect_i2c,
 598         .enable = enable_rgb,
 599         .mode   = {
 600                 .name           = "wvga-rgb",
 601                 .refresh        = 57,
 602                 .xres           = 800,
 603                 .yres           = 480,
 604                 .pixclock       = 37037,
 605                 .left_margin    = 40,
 606                 .right_margin   = 60,
 607                 .upper_margin   = 10,
 608                 .lower_margin   = 10,
 609                 .hsync_len      = 20,
 610                 .vsync_len      = 10,
 611                 .sync           = 0,
 612                 .vmode          = FB_VMODE_NONINTERLACED
 613 } } };
 614
 615 int board_video_skip(void)
 616 {
 617         int i;
 618         int ret;
 619         char const *panel = getenv("panel");
 620         if (!panel) {
 621                 for (i = 0; i < ARRAY_SIZE(displays); i++) {
 622                         struct display_info_t const *dev = displays+i;
 623                         if (dev->detect(dev)) {
 624                                 panel = dev->mode.name;
 625                                 printf("auto-detected panel %s\n", panel);
 626                                 break;
 627                         }
 628                 }
 629                 if (!panel) {
 630                         panel = displays[0].mode.name;
 631                         printf("No panel detected: default to %s\n", panel);
 632                 }
 633         } else {
 634                 for (i = 0; i < ARRAY_SIZE(displays); i++) {
 635                         if (!strcmp(panel, displays[i].mode.name))
 636                                 break;
 637                 }
 638         }
 639         if (i < ARRAY_SIZE(displays)) {
 640                 ret = ipuv3_fb_init(&displays[i].mode, 0,
 641                                     displays[i].pixfmt);
 642                 if (!ret) {
 643                         displays[i].enable(displays+i);
 644                         printf("Display: %s (%ux%u)\n",
 645                                displays[i].mode.name,
 646                                displays[i].mode.xres,
 647                                displays[i].mode.yres);
 648                 } else
 649                         printf("LCD %s cannot be configured: %d\n",
 650                                displays[i].mode.name, ret);
 651         } else {
 652                 printf("unsupported panel %s\n", panel);
 653                 ret = -EINVAL;
 654         }
 655         return (0 != ret);
 656 }
 657
 658 static void setup_display(void)
 659 {
 660         struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 661         struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 662         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 663         struct hdmi_regs *hdmi  = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
 664
 665         int reg;
 666
 667         /* Turn on LDB0,IPU,IPU DI0 clocks */
 668         reg = __raw_readl(&mxc_ccm->CCGR3);
 669         reg |=   MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET
 670                 |MXC_CCM_CCGR3_LDB_DI0_MASK;
 671         writel(reg, &mxc_ccm->CCGR3);
 672
 673         /* Turn on HDMI PHY clock */
 674         reg = __raw_readl(&mxc_ccm->CCGR2);
 675         reg |=  MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
 676                |MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
 677         writel(reg, &mxc_ccm->CCGR2);
 678
 679         /* clear HDMI PHY reset */
 680         writeb(HDMI_MC_PHYRSTZ_DEASSERT, &hdmi->mc_phyrstz);
 681
 682         /* set PFD1_FRAC to 0x13 == 455 MHz (480*18)/0x13 */
 683         writel(ANATOP_PFD_480_PFD1_FRAC_MASK, &anatop->pfd_480_clr);
 684         writel(0x13<<ANATOP_PFD_480_PFD1_FRAC_SHIFT, &anatop->pfd_480_set);
 685
 686         /* set LDB0, LDB1 clk select to 011/011 */
 687         reg = readl(&mxc_ccm->cs2cdr);
 688         reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
 689                  |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
 690         reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
 691               |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
 692         writel(reg, &mxc_ccm->cs2cdr);
 693
 694         reg = readl(&mxc_ccm->cscmr2);
 695         reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
 696         writel(reg, &mxc_ccm->cscmr2);
 697
 698         reg = readl(&mxc_ccm->chsccdr);
 699         reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
 700                 |MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
 701                 |MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
 702         reg |= (CHSCCDR_CLK_SEL_LDB_DI0
 703                 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
 704               |(CHSCCDR_PODF_DIVIDE_BY_3
 705                 <<MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
 706               |(CHSCCDR_IPU_PRE_CLK_540M_PFD
 707                 <<MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
 708         writel(reg, &mxc_ccm->chsccdr);
 709
 710         reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
 711              |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
 712              |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
 713              |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
 714              |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
 715              |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
 716              |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
 717              |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
 718              |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
 719         writel(reg, &iomux->gpr[2]);
 720
 721         reg = readl(&iomux->gpr[3]);
 722         reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
 723             | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
 724                <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
 725         writel(reg, &iomux->gpr[3]);
 726
 727         /* backlights off until needed */
 728         imx_iomux_v3_setup_multiple_pads(backlight_pads,
 729                                          ARRAY_SIZE(backlight_pads));
 730         gpio_direction_input(LVDS_BACKLIGHT_GP);
 731         gpio_direction_input(RGB_BACKLIGHT_GP);
 732 }
 733 #endif
 734
 735 int board_early_init_f(void)
 736 {
 737         setup_iomux_uart();
 738
 739         /* Disable wl1271 For Nitrogen6w */
 740         gpio_direction_input(WL12XX_WL_IRQ_GP);
 741         gpio_direction_output(WL12XX_WL_ENABLE_GP, 0);
 742         gpio_direction_output(WL12XX_BT_ENABLE_GP, 0);
 743
 744         imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads));
 745         setup_buttons();
 746
 747 #if defined(CONFIG_VIDEO_IPUV3)
 748         setup_display();
 749 #endif
 750         return 0;
 751 }
 752
 753 /*
 754  * Do not overwrite the console
 755  * Use always serial for U-Boot console
 756  */
 757 int overwrite_console(void)
 758 {
 759         return 1;
 760 }
 761
 762 int board_init(void)
 763 {
 764         /* address of boot parameters */
 765         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 766
 767 #ifdef CONFIG_MXC_SPI
 768         setup_spi();
 769 #endif
 770         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
 771         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 772         setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 773
 774 #ifdef CONFIG_CMD_SATA
 775         setup_sata();
 776 #endif
 777
 778         return 0;
 779 }
 780
 781 int checkboard(void)
 782 {
 783         if (gpio_get_value(WL12XX_WL_IRQ_GP))
 784                 puts("Board: Nitrogen6X\n");
 785         else
 786                 puts("Board: SABRE Lite\n");
 787
 788         return 0;
 789 }
 790
 791 struct button_key {
 792         char const      *name;
 793         unsigned        gpnum;
 794         char            ident;
 795 };
 796
 797 static struct button_key const buttons[] = {
 798         {"back",        IMX_GPIO_NR(2, 2),      'B'},
 799         {"home",        IMX_GPIO_NR(2, 4),      'H'},
 800         {"menu",        IMX_GPIO_NR(2, 1),      'M'},
 801         {"search",      IMX_GPIO_NR(2, 3),      'S'},
 802         {"volup",       IMX_GPIO_NR(7, 13),     'V'},
 803         {"voldown",     IMX_GPIO_NR(4, 5),      'v'},
 804 };
 805
 806 /*
 807  * generate a null-terminated string containing the buttons pressed
 808  * returns number of keys pressed
 809  */
 810 static int read_keys(char *buf)
 811 {
 812         int i, numpressed = 0;
 813         for (i = 0; i < ARRAY_SIZE(buttons); i++) {
 814                 if (!gpio_get_value(buttons[i].gpnum))
 815                         buf[numpressed++] = buttons[i].ident;
 816         }
 817         buf[numpressed] = '\0';
 818         return numpressed;
 819 }
 820
 821 static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 822 {
 823         char envvalue[ARRAY_SIZE(buttons)+1];
 824         int numpressed = read_keys(envvalue);
 825         setenv("keybd", envvalue);
 826         return numpressed == 0;
 827 }
 828
 829 U_BOOT_CMD(
 830         kbd, 1, 1, do_kbd,
 831         "Tests for keypresses, sets 'keybd' environment variable",
 832         "Returns 0 (true) to shell if key is pressed."
 833 );
 834
 835 #ifdef CONFIG_PREBOOT
 836 static char const kbd_magic_prefix[] = "key_magic";
 837 static char const kbd_command_prefix[] = "key_cmd";
 838
 839 static void preboot_keys(void)
 840 {
 841         int numpressed;
 842         char keypress[ARRAY_SIZE(buttons)+1];
 843         numpressed = read_keys(keypress);
 844         if (numpressed) {
 845                 char *kbd_magic_keys = getenv("magic_keys");
 846                 char *suffix;
 847                 /*
 848                  * loop over all magic keys
 849                  */
 850                 for (suffix = kbd_magic_keys; *suffix; ++suffix) {
 851                         char *keys;
 852                         char magic[sizeof(kbd_magic_prefix) + 1];
 853                         sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
 854                         keys = getenv(magic);
 855                         if (keys) {
 856                                 if (!strcmp(keys, keypress))
 857                                         break;
 858                         }
 859                 }
 860                 if (*suffix) {
 861                         char cmd_name[sizeof(kbd_command_prefix) + 1];
 862                         char *cmd;
 863                         sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
 864                         cmd = getenv(cmd_name);
 865                         if (cmd) {
 866                                 setenv("preboot", cmd);
 867                                 return;
 868                         }
 869                 }
 870         }
 871 }
 872 #endif
 873
 874 #ifdef CONFIG_CMD_BMODE
 875 static const struct boot_mode board_boot_modes[] = {
 876         /* 4 bit bus width */
 877         {"mmc0",        MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
 878         {"mmc1",        MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
 879         {NULL,          0},
 880 };
 881 #endif
 882
 883 int misc_init_r(void)
 884 {
 885 #ifdef CONFIG_PREBOOT
 886         preboot_keys();
 887 #endif
 888
 889 #ifdef CONFIG_CMD_BMODE
 890         add_board_boot_modes(board_boot_modes);
 891 #endif
 892         return 0;
 893 }