git.sur5r.net Git - u-boot/blob - 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  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/imx-regs.h>
  12 #include <asm/arch/iomux.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <malloc.h>
  15 #include <asm/arch/mx6-pins.h>
  16 #include <asm/errno.h>
  17 #include <asm/gpio.h>
  18 #include <asm/imx-common/iomux-v3.h>
  19 #include <asm/imx-common/mxc_i2c.h>
  20 #include <asm/imx-common/sata.h>
  21 #include <asm/imx-common/spi.h>
  22 #include <asm/imx-common/boot_mode.h>
  23 #include <asm/imx-common/video.h>
  24 #include <mmc.h>
  25 #include <fsl_esdhc.h>
  26 #include <micrel.h>
  27 #include <miiphy.h>
  28 #include <netdev.h>
  29 #include <asm/arch/crm_regs.h>
  30 #include <asm/arch/mxc_hdmi.h>
  31 #include <i2c.h>
  32 #include <input.h>
  33 #include <netdev.h>
  34 #include <usb/ehci-fsl.h>
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37 #define GP_USB_OTG_PWR  IMX_GPIO_NR(3, 22)
  38
  39 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  40         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  41         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  42
  43 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  44         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  45         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  46
  47 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  48         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  49
  50 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED |         \
  51         PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
  52
  53 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP |                  \
  54         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  55
  56 #define I2C_PAD_CTRL    (PAD_CTL_PUS_100K_UP |                  \
  57         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
  58         PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  59
  60 #define WEAK_PULLUP     (PAD_CTL_PUS_100K_UP |                  \
  61         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
  62         PAD_CTL_SRE_SLOW)
  63
  64 #define WEAK_PULLDOWN   (PAD_CTL_PUS_100K_DOWN |                \
  65         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  66         PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
  67
  68 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
  69
  70 int dram_init(void)
  71 {
  72         gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
  73
  74         return 0;
  75 }
  76
  77 static iomux_v3_cfg_t const uart1_pads[] = {
  78         MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  79         MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  80 };
  81
  82 static iomux_v3_cfg_t const uart2_pads[] = {
  83         MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  84         MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  85 };
  86
  87 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  88
  89 /* I2C1, SGTL5000 */
  90 static struct i2c_pads_info i2c_pad_info0 = {
  91         .scl = {
  92                 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
  93                 .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC,
  94                 .gp = IMX_GPIO_NR(3, 21)
  95         },
  96         .sda = {
  97                 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
  98                 .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC,
  99                 .gp = IMX_GPIO_NR(3, 28)
 100         }
 101 };
 102
 103 /* I2C2 Camera, MIPI */
 104 static struct i2c_pads_info i2c_pad_info1 = {
 105         .scl = {
 106                 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
 107                 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
 108                 .gp = IMX_GPIO_NR(4, 12)
 109         },
 110         .sda = {
 111                 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
 112                 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
 113                 .gp = IMX_GPIO_NR(4, 13)
 114         }
 115 };
 116
 117 /* I2C3, J15 - RGB connector */
 118 static struct i2c_pads_info i2c_pad_info2 = {
 119         .scl = {
 120                 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
 121                 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | PC,
 122                 .gp = IMX_GPIO_NR(1, 5)
 123         },
 124         .sda = {
 125                 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
 126                 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC,
 127                 .gp = IMX_GPIO_NR(7, 11)
 128         }
 129 };
 130
 131 static iomux_v3_cfg_t const usdhc2_pads[] = {
 132         MX6_PAD_SD2_CLK__SD2_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 133         MX6_PAD_SD2_CMD__SD2_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 134         MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 135         MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 136         MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 137         MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 138 };
 139
 140 static iomux_v3_cfg_t const usdhc3_pads[] = {
 141         MX6_PAD_SD3_CLK__SD3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 142         MX6_PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 143         MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 144         MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 145         MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 146         MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 147         MX6_PAD_SD3_DAT5__GPIO7_IO00    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 148 };
 149
 150 static iomux_v3_cfg_t const usdhc4_pads[] = {
 151         MX6_PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 152         MX6_PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 153         MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 154         MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 155         MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 156         MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 157         MX6_PAD_NANDF_D6__GPIO2_IO06    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 158 };
 159
 160 static iomux_v3_cfg_t const enet_pads1[] = {
 161         MX6_PAD_ENET_MDIO__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
 162         MX6_PAD_ENET_MDC__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
 163         MX6_PAD_RGMII_TXC__RGMII_TXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 164         MX6_PAD_RGMII_TD0__RGMII_TD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 165         MX6_PAD_RGMII_TD1__RGMII_TD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 166         MX6_PAD_RGMII_TD2__RGMII_TD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 167         MX6_PAD_RGMII_TD3__RGMII_TD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 168         MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 169         MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL),
 170         /* pin 35 - 1 (PHY_AD2) on reset */
 171         MX6_PAD_RGMII_RXC__GPIO6_IO30           | MUX_PAD_CTRL(NO_PAD_CTRL),
 172         /* pin 32 - 1 - (MODE0) all */
 173         MX6_PAD_RGMII_RD0__GPIO6_IO25           | MUX_PAD_CTRL(NO_PAD_CTRL),
 174         /* pin 31 - 1 - (MODE1) all */
 175         MX6_PAD_RGMII_RD1__GPIO6_IO27           | MUX_PAD_CTRL(NO_PAD_CTRL),
 176         /* pin 28 - 1 - (MODE2) all */
 177         MX6_PAD_RGMII_RD2__GPIO6_IO28           | MUX_PAD_CTRL(NO_PAD_CTRL),
 178         /* pin 27 - 1 - (MODE3) all */
 179         MX6_PAD_RGMII_RD3__GPIO6_IO29           | MUX_PAD_CTRL(NO_PAD_CTRL),
 180         /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
 181         MX6_PAD_RGMII_RX_CTL__GPIO6_IO24        | MUX_PAD_CTRL(NO_PAD_CTRL),
 182         /* pin 42 PHY nRST */
 183         MX6_PAD_EIM_D23__GPIO3_IO23             | MUX_PAD_CTRL(NO_PAD_CTRL),
 184         MX6_PAD_ENET_RXD0__GPIO1_IO27           | MUX_PAD_CTRL(NO_PAD_CTRL),
 185 };
 186
 187 static iomux_v3_cfg_t const enet_pads2[] = {
 188         MX6_PAD_RGMII_RXC__RGMII_RXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 189         MX6_PAD_RGMII_RD0__RGMII_RD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 190         MX6_PAD_RGMII_RD1__RGMII_RD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 191         MX6_PAD_RGMII_RD2__RGMII_RD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 192         MX6_PAD_RGMII_RD3__RGMII_RD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 193         MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 194 };
 195
 196 static iomux_v3_cfg_t const misc_pads[] = {
 197         MX6_PAD_GPIO_1__USB_OTG_ID              | MUX_PAD_CTRL(WEAK_PULLUP),
 198         MX6_PAD_KEY_COL4__USB_OTG_OC            | MUX_PAD_CTRL(WEAK_PULLUP),
 199         MX6_PAD_EIM_D30__USB_H1_OC              | MUX_PAD_CTRL(WEAK_PULLUP),
 200         /* OTG Power enable */
 201         MX6_PAD_EIM_D22__GPIO3_IO22             | MUX_PAD_CTRL(OUTPUT_40OHM),
 202 };
 203
 204 /* wl1271 pads on nitrogen6x */
 205 static iomux_v3_cfg_t const wl12xx_pads[] = {
 206         (MX6_PAD_NANDF_CS1__GPIO6_IO14 & ~MUX_PAD_CTRL_MASK)
 207                 | MUX_PAD_CTRL(WEAK_PULLDOWN),
 208         (MX6_PAD_NANDF_CS2__GPIO6_IO15 & ~MUX_PAD_CTRL_MASK)
 209                 | MUX_PAD_CTRL(OUTPUT_40OHM),
 210         (MX6_PAD_NANDF_CS3__GPIO6_IO16 & ~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__GPIO2_IO01    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 221         /* Back */
 222         MX6_PAD_NANDF_D2__GPIO2_IO02    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 223         /* Labelled Search (mapped to Power under Android) */
 224         MX6_PAD_NANDF_D3__GPIO2_IO03    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 225         /* Home */
 226         MX6_PAD_NANDF_D4__GPIO2_IO04    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 227         /* Volume Down */
 228         MX6_PAD_GPIO_19__GPIO4_IO05     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
 229         /* Volume Up */
 230         MX6_PAD_GPIO_18__GPIO7_IO13     | 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         udelay(100);    /* Wait 100 us before using mii interface */
 252 }
 253
 254 static iomux_v3_cfg_t const usb_pads[] = {
 255         MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
 256 };
 257
 258 static void setup_iomux_uart(void)
 259 {
 260         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 261         imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
 262 }
 263
 264 #ifdef CONFIG_USB_EHCI_MX6
 265 int board_ehci_hcd_init(int port)
 266 {
 267         imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
 268
 269         /* Reset USB hub */
 270         gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
 271         mdelay(2);
 272         gpio_set_value(IMX_GPIO_NR(7, 12), 1);
 273
 274         return 0;
 275 }
 276
 277 int board_ehci_power(int port, int on)
 278 {
 279         if (port)
 280                 return 0;
 281         gpio_set_value(GP_USB_OTG_PWR, on);
 282         return 0;
 283 }
 284
 285 #endif
 286
 287 #ifdef CONFIG_FSL_ESDHC
 288 static struct fsl_esdhc_cfg usdhc_cfg[2] = {
 289         {USDHC3_BASE_ADDR},
 290         {USDHC4_BASE_ADDR},
 291 };
 292
 293 int board_mmc_getcd(struct mmc *mmc)
 294 {
 295         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 296         int gp_cd = (cfg->esdhc_base == USDHC3_BASE_ADDR) ? IMX_GPIO_NR(7, 0) :
 297                         IMX_GPIO_NR(2, 6);
 298
 299         gpio_direction_input(gp_cd);
 300         return !gpio_get_value(gp_cd);
 301 }
 302
 303 int board_mmc_init(bd_t *bis)
 304 {
 305         s32 status = 0;
 306         u32 index = 0;
 307
 308         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 309         usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 310
 311         usdhc_cfg[0].max_bus_width = 4;
 312         usdhc_cfg[1].max_bus_width = 4;
 313
 314         for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
 315                 switch (index) {
 316                 case 0:
 317                         imx_iomux_v3_setup_multiple_pads(
 318                                 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 319                         break;
 320                 case 1:
 321                        imx_iomux_v3_setup_multiple_pads(
 322                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 323                        break;
 324                 default:
 325                        printf("Warning: you configured more USDHC controllers"
 326                                "(%d) then supported by the board (%d)\n",
 327                                index + 1, CONFIG_SYS_FSL_USDHC_NUM);
 328                        return status;
 329                 }
 330
 331                 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
 332         }
 333
 334         return status;
 335 }
 336 #endif
 337
 338 #ifdef CONFIG_MXC_SPI
 339 int board_spi_cs_gpio(unsigned bus, unsigned cs)
 340 {
 341         return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
 342 }
 343
 344 static iomux_v3_cfg_t const ecspi1_pads[] = {
 345         /* SS1 */
 346         MX6_PAD_EIM_D19__GPIO3_IO19  | MUX_PAD_CTRL(NO_PAD_CTRL),
 347         MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 348         MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 349         MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 350 };
 351
 352 static void setup_spi(void)
 353 {
 354         imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
 355                                          ARRAY_SIZE(ecspi1_pads));
 356 }
 357 #endif
 358
 359 int board_phy_config(struct phy_device *phydev)
 360 {
 361         /* min rx data delay */
 362         ksz9021_phy_extended_write(phydev,
 363                         MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
 364         /* min tx data delay */
 365         ksz9021_phy_extended_write(phydev,
 366                         MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
 367         /* max rx/tx clock delay, min rx/tx control */
 368         ksz9021_phy_extended_write(phydev,
 369                         MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
 370         if (phydev->drv->config)
 371                 phydev->drv->config(phydev);
 372
 373         return 0;
 374 }
 375
 376 int board_eth_init(bd_t *bis)
 377 {
 378         uint32_t base = IMX_FEC_BASE;
 379         struct mii_dev *bus = NULL;
 380         struct phy_device *phydev = NULL;
 381         int ret;
 382
 383         setup_iomux_enet();
 384
 385 #ifdef CONFIG_FEC_MXC
 386         bus = fec_get_miibus(base, -1);
 387         if (!bus)
 388                 return 0;
 389         /* scan phy 4,5,6,7 */
 390         phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
 391         if (!phydev) {
 392                 free(bus);
 393                 return 0;
 394         }
 395         printf("using phy at %d\n", phydev->addr);
 396         ret  = fec_probe(bis, -1, base, bus, phydev);
 397         if (ret) {
 398                 printf("FEC MXC: %s:failed\n", __func__);
 399                 free(phydev);
 400                 free(bus);
 401         }
 402 #endif
 403
 404 #ifdef CONFIG_CI_UDC
 405         /* For otg ethernet*/
 406         usb_eth_initialize(bis);
 407 #endif
 408         return 0;
 409 }
 410
 411 static void setup_buttons(void)
 412 {
 413         imx_iomux_v3_setup_multiple_pads(button_pads,
 414                                          ARRAY_SIZE(button_pads));
 415 }
 416
 417 #if defined(CONFIG_VIDEO_IPUV3)
 418
 419 static iomux_v3_cfg_t const backlight_pads[] = {
 420         /* Backlight on RGB connector: J15 */
 421         MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
 422 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
 423
 424         /* Backlight on LVDS connector: J6 */
 425         MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
 426 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
 427 };
 428
 429 static iomux_v3_cfg_t const rgb_pads[] = {
 430         MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
 431         MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
 432         MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
 433         MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
 434         MX6_PAD_DI0_PIN4__GPIO4_IO20,
 435         MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
 436         MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
 437         MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
 438         MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
 439         MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
 440         MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
 441         MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
 442         MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
 443         MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
 444         MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
 445         MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
 446         MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
 447         MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
 448         MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
 449         MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
 450         MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
 451         MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
 452         MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
 453         MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
 454         MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
 455         MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
 456         MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
 457         MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
 458         MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
 459 };
 460
 461 static void do_enable_hdmi(struct display_info_t const *dev)
 462 {
 463         imx_enable_hdmi_phy();
 464 }
 465
 466 static int detect_i2c(struct display_info_t const *dev)
 467 {
 468         return ((0 == i2c_set_bus_num(dev->bus))
 469                 &&
 470                 (0 == i2c_probe(dev->addr)));
 471 }
 472
 473 static void enable_lvds(struct display_info_t const *dev)
 474 {
 475         struct iomuxc *iomux = (struct iomuxc *)
 476                                 IOMUXC_BASE_ADDR;
 477         u32 reg = readl(&iomux->gpr[2]);
 478         reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
 479         writel(reg, &iomux->gpr[2]);
 480         gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
 481 }
 482
 483 static void enable_lvds_jeida(struct display_info_t const *dev)
 484 {
 485         struct iomuxc *iomux = (struct iomuxc *)
 486                                 IOMUXC_BASE_ADDR;
 487         u32 reg = readl(&iomux->gpr[2]);
 488         reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
 489              |IOMUXC_GPR2_BIT_MAPPING_CH0_JEIDA;
 490         writel(reg, &iomux->gpr[2]);
 491         gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
 492 }
 493
 494 static void enable_rgb(struct display_info_t const *dev)
 495 {
 496         imx_iomux_v3_setup_multiple_pads(
 497                 rgb_pads,
 498                  ARRAY_SIZE(rgb_pads));
 499         gpio_direction_output(RGB_BACKLIGHT_GP, 1);
 500 }
 501
 502 struct display_info_t const displays[] = {{
 503         .bus    = 1,
 504         .addr   = 0x50,
 505         .pixfmt = IPU_PIX_FMT_RGB24,
 506         .detect = detect_i2c,
 507         .enable = do_enable_hdmi,
 508         .mode   = {
 509                 .name           = "HDMI",
 510                 .refresh        = 60,
 511                 .xres           = 1024,
 512                 .yres           = 768,
 513                 .pixclock       = 15385,
 514                 .left_margin    = 220,
 515                 .right_margin   = 40,
 516                 .upper_margin   = 21,
 517                 .lower_margin   = 7,
 518                 .hsync_len      = 60,
 519                 .vsync_len      = 10,
 520                 .sync           = FB_SYNC_EXT,
 521                 .vmode          = FB_VMODE_NONINTERLACED
 522 } }, {
 523         .bus    = 0,
 524         .addr   = 0,
 525         .pixfmt = IPU_PIX_FMT_RGB24,
 526         .detect = NULL,
 527         .enable = enable_lvds_jeida,
 528         .mode   = {
 529                 .name           = "LDB-WXGA",
 530                 .refresh        = 60,
 531                 .xres           = 1280,
 532                 .yres           = 800,
 533                 .pixclock       = 14065,
 534                 .left_margin    = 40,
 535                 .right_margin   = 40,
 536                 .upper_margin   = 3,
 537                 .lower_margin   = 80,
 538                 .hsync_len      = 10,
 539                 .vsync_len      = 10,
 540                 .sync           = FB_SYNC_EXT,
 541                 .vmode          = FB_VMODE_NONINTERLACED
 542 } }, {
 543         .bus    = 0,
 544         .addr   = 0,
 545         .pixfmt = IPU_PIX_FMT_RGB24,
 546         .detect = NULL,
 547         .enable = enable_lvds,
 548         .mode   = {
 549                 .name           = "LDB-WXGA-S",
 550                 .refresh        = 60,
 551                 .xres           = 1280,
 552                 .yres           = 800,
 553                 .pixclock       = 14065,
 554                 .left_margin    = 40,
 555                 .right_margin   = 40,
 556                 .upper_margin   = 3,
 557                 .lower_margin   = 80,
 558                 .hsync_len      = 10,
 559                 .vsync_len      = 10,
 560                 .sync           = FB_SYNC_EXT,
 561                 .vmode          = FB_VMODE_NONINTERLACED
 562 } }, {
 563         .bus    = 2,
 564         .addr   = 0x4,
 565         .pixfmt = IPU_PIX_FMT_LVDS666,
 566         .detect = detect_i2c,
 567         .enable = enable_lvds,
 568         .mode   = {
 569                 .name           = "Hannstar-XGA",
 570                 .refresh        = 60,
 571                 .xres           = 1024,
 572                 .yres           = 768,
 573                 .pixclock       = 15385,
 574                 .left_margin    = 220,
 575                 .right_margin   = 40,
 576                 .upper_margin   = 21,
 577                 .lower_margin   = 7,
 578                 .hsync_len      = 60,
 579                 .vsync_len      = 10,
 580                 .sync           = FB_SYNC_EXT,
 581                 .vmode          = FB_VMODE_NONINTERLACED
 582 } }, {
 583         .bus    = 0,
 584         .addr   = 0,
 585         .pixfmt = IPU_PIX_FMT_LVDS666,
 586         .detect = NULL,
 587         .enable = enable_lvds,
 588         .mode   = {
 589                 .name           = "LG-9.7",
 590                 .refresh        = 60,
 591                 .xres           = 1024,
 592                 .yres           = 768,
 593                 .pixclock       = 15385, /* ~65MHz */
 594                 .left_margin    = 480,
 595                 .right_margin   = 260,
 596                 .upper_margin   = 16,
 597                 .lower_margin   = 6,
 598                 .hsync_len      = 250,
 599                 .vsync_len      = 10,
 600                 .sync           = FB_SYNC_EXT,
 601                 .vmode          = FB_VMODE_NONINTERLACED
 602 } }, {
 603         .bus    = 2,
 604         .addr   = 0x38,
 605         .pixfmt = IPU_PIX_FMT_LVDS666,
 606         .detect = detect_i2c,
 607         .enable = enable_lvds,
 608         .mode   = {
 609                 .name           = "wsvga-lvds",
 610                 .refresh        = 60,
 611                 .xres           = 1024,
 612                 .yres           = 600,
 613                 .pixclock       = 15385,
 614                 .left_margin    = 220,
 615                 .right_margin   = 40,
 616                 .upper_margin   = 21,
 617                 .lower_margin   = 7,
 618                 .hsync_len      = 60,
 619                 .vsync_len      = 10,
 620                 .sync           = FB_SYNC_EXT,
 621                 .vmode          = FB_VMODE_NONINTERLACED
 622 } }, {
 623         .bus    = 2,
 624         .addr   = 0x10,
 625         .pixfmt = IPU_PIX_FMT_RGB666,
 626         .detect = detect_i2c,
 627         .enable = enable_rgb,
 628         .mode   = {
 629                 .name           = "fusion7",
 630                 .refresh        = 60,
 631                 .xres           = 800,
 632                 .yres           = 480,
 633                 .pixclock       = 33898,
 634                 .left_margin    = 96,
 635                 .right_margin   = 24,
 636                 .upper_margin   = 3,
 637                 .lower_margin   = 10,
 638                 .hsync_len      = 72,
 639                 .vsync_len      = 7,
 640                 .sync           = 0x40000002,
 641                 .vmode          = FB_VMODE_NONINTERLACED
 642 } }, {
 643         .bus    = 0,
 644         .addr   = 0,
 645         .pixfmt = IPU_PIX_FMT_RGB666,
 646         .detect = NULL,
 647         .enable = enable_rgb,
 648         .mode   = {
 649                 .name           = "svga",
 650                 .refresh        = 60,
 651                 .xres           = 800,
 652                 .yres           = 600,
 653                 .pixclock       = 15385,
 654                 .left_margin    = 220,
 655                 .right_margin   = 40,
 656                 .upper_margin   = 21,
 657                 .lower_margin   = 7,
 658                 .hsync_len      = 60,
 659                 .vsync_len      = 10,
 660                 .sync           = 0,
 661                 .vmode          = FB_VMODE_NONINTERLACED
 662 } }, {
 663         .bus    = 2,
 664         .addr   = 0x41,
 665         .pixfmt = IPU_PIX_FMT_LVDS666,
 666         .detect = detect_i2c,
 667         .enable = enable_lvds,
 668         .mode   = {
 669                 .name           = "amp1024x600",
 670                 .refresh        = 60,
 671                 .xres           = 1024,
 672                 .yres           = 600,
 673                 .pixclock       = 15385,
 674                 .left_margin    = 220,
 675                 .right_margin   = 40,
 676                 .upper_margin   = 21,
 677                 .lower_margin   = 7,
 678                 .hsync_len      = 60,
 679                 .vsync_len      = 10,
 680                 .sync           = FB_SYNC_EXT,
 681                 .vmode          = FB_VMODE_NONINTERLACED
 682 } }, {
 683         .bus    = 0,
 684         .addr   = 0,
 685         .pixfmt = IPU_PIX_FMT_LVDS666,
 686         .detect = 0,
 687         .enable = enable_lvds,
 688         .mode   = {
 689                 .name           = "wvga-lvds",
 690                 .refresh        = 57,
 691                 .xres           = 800,
 692                 .yres           = 480,
 693                 .pixclock       = 15385,
 694                 .left_margin    = 220,
 695                 .right_margin   = 40,
 696                 .upper_margin   = 21,
 697                 .lower_margin   = 7,
 698                 .hsync_len      = 60,
 699                 .vsync_len      = 10,
 700                 .sync           = FB_SYNC_EXT,
 701                 .vmode          = FB_VMODE_NONINTERLACED
 702 } }, {
 703         .bus    = 2,
 704         .addr   = 0x48,
 705         .pixfmt = IPU_PIX_FMT_RGB666,
 706         .detect = detect_i2c,
 707         .enable = enable_rgb,
 708         .mode   = {
 709                 .name           = "wvga-rgb",
 710                 .refresh        = 57,
 711                 .xres           = 800,
 712                 .yres           = 480,
 713                 .pixclock       = 37037,
 714                 .left_margin    = 40,
 715                 .right_margin   = 60,
 716                 .upper_margin   = 10,
 717                 .lower_margin   = 10,
 718                 .hsync_len      = 20,
 719                 .vsync_len      = 10,
 720                 .sync           = 0,
 721                 .vmode          = FB_VMODE_NONINTERLACED
 722 } }, {
 723         .bus    = 0,
 724         .addr   = 0,
 725         .pixfmt = IPU_PIX_FMT_RGB24,
 726         .detect = NULL,
 727         .enable = enable_rgb,
 728         .mode   = {
 729                 .name           = "qvga",
 730                 .refresh        = 60,
 731                 .xres           = 320,
 732                 .yres           = 240,
 733                 .pixclock       = 37037,
 734                 .left_margin    = 38,
 735                 .right_margin   = 37,
 736                 .upper_margin   = 16,
 737                 .lower_margin   = 15,
 738                 .hsync_len      = 30,
 739                 .vsync_len      = 3,
 740                 .sync           = 0,
 741                 .vmode          = FB_VMODE_NONINTERLACED
 742 } } };
 743 size_t display_count = ARRAY_SIZE(displays);
 744
 745 int board_cfb_skip(void)
 746 {
 747         return NULL != getenv("novideo");
 748 }
 749
 750 static void setup_display(void)
 751 {
 752         struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 753         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 754         int reg;
 755
 756         enable_ipu_clock();
 757         imx_setup_hdmi();
 758         /* Turn on LDB0,IPU,IPU DI0 clocks */
 759         reg = __raw_readl(&mxc_ccm->CCGR3);
 760         reg |=  MXC_CCM_CCGR3_LDB_DI0_MASK;
 761         writel(reg, &mxc_ccm->CCGR3);
 762
 763         /* set LDB0, LDB1 clk select to 011/011 */
 764         reg = readl(&mxc_ccm->cs2cdr);
 765         reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
 766                  |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
 767         reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
 768               |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
 769         writel(reg, &mxc_ccm->cs2cdr);
 770
 771         reg = readl(&mxc_ccm->cscmr2);
 772         reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
 773         writel(reg, &mxc_ccm->cscmr2);
 774
 775         reg = readl(&mxc_ccm->chsccdr);
 776         reg |= (CHSCCDR_CLK_SEL_LDB_DI0
 777                 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
 778         writel(reg, &mxc_ccm->chsccdr);
 779
 780         reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
 781              |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
 782              |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
 783              |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
 784              |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
 785              |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
 786              |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
 787              |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
 788              |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
 789         writel(reg, &iomux->gpr[2]);
 790
 791         reg = readl(&iomux->gpr[3]);
 792         reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
 793                         |IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
 794             | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
 795                <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
 796         writel(reg, &iomux->gpr[3]);
 797
 798         /* backlights off until needed */
 799         imx_iomux_v3_setup_multiple_pads(backlight_pads,
 800                                          ARRAY_SIZE(backlight_pads));
 801         gpio_direction_input(LVDS_BACKLIGHT_GP);
 802         gpio_direction_input(RGB_BACKLIGHT_GP);
 803 }
 804 #endif
 805
 806 static iomux_v3_cfg_t const init_pads[] = {
 807         /* SGTL5000 sys_mclk */
 808         NEW_PAD_CTRL(MX6_PAD_GPIO_0__CCM_CLKO1, OUTPUT_40OHM),
 809
 810         /* J5 - Camera MCLK */
 811         NEW_PAD_CTRL(MX6_PAD_GPIO_3__CCM_CLKO2, OUTPUT_40OHM),
 812
 813         /* wl1271 pads on nitrogen6x */
 814         /* WL12XX_WL_IRQ_GP */
 815         NEW_PAD_CTRL(MX6_PAD_NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN),
 816         /* WL12XX_WL_ENABLE_GP */
 817         NEW_PAD_CTRL(MX6_PAD_NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM),
 818         /* WL12XX_BT_ENABLE_GP */
 819         NEW_PAD_CTRL(MX6_PAD_NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM),
 820         /* USB otg power */
 821         NEW_PAD_CTRL(MX6_PAD_EIM_D22__GPIO3_IO22, OUTPUT_40OHM),
 822         NEW_PAD_CTRL(MX6_PAD_NANDF_D5__GPIO2_IO05, OUTPUT_40OHM),
 823         NEW_PAD_CTRL(MX6_PAD_NANDF_WP_B__GPIO6_IO09, OUTPUT_40OHM),
 824         NEW_PAD_CTRL(MX6_PAD_GPIO_8__GPIO1_IO08, OUTPUT_40OHM),
 825         NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, OUTPUT_40OHM),
 826 };
 827
 828 #define WL12XX_WL_IRQ_GP        IMX_GPIO_NR(6, 14)
 829
 830 static unsigned gpios_out_low[] = {
 831         /* Disable wl1271 */
 832         IMX_GPIO_NR(6, 15),     /* disable wireless */
 833         IMX_GPIO_NR(6, 16),     /* disable bluetooth */
 834         IMX_GPIO_NR(3, 22),     /* disable USB otg power */
 835         IMX_GPIO_NR(2, 5),      /* ov5640 mipi camera reset */
 836         IMX_GPIO_NR(1, 8),      /* ov5642 reset */
 837 };
 838
 839 static unsigned gpios_out_high[] = {
 840         IMX_GPIO_NR(1, 6),      /* ov5642 powerdown */
 841         IMX_GPIO_NR(6, 9),      /* ov5640 mipi camera power down */
 842 };
 843
 844 static void set_gpios(unsigned *p, int cnt, int val)
 845 {
 846         int i;
 847
 848         for (i = 0; i < cnt; i++)
 849                 gpio_direction_output(*p++, val);
 850 }
 851
 852 int board_early_init_f(void)
 853 {
 854         setup_iomux_uart();
 855
 856         set_gpios(gpios_out_high, ARRAY_SIZE(gpios_out_high), 1);
 857         set_gpios(gpios_out_low, ARRAY_SIZE(gpios_out_low), 0);
 858         gpio_direction_input(WL12XX_WL_IRQ_GP);
 859
 860         imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads));
 861         imx_iomux_v3_setup_multiple_pads(init_pads, ARRAY_SIZE(init_pads));
 862         setup_buttons();
 863
 864 #if defined(CONFIG_VIDEO_IPUV3)
 865         setup_display();
 866 #endif
 867         return 0;
 868 }
 869
 870 /*
 871  * Do not overwrite the console
 872  * Use always serial for U-Boot console
 873  */
 874 int overwrite_console(void)
 875 {
 876         return 1;
 877 }
 878
 879 int board_init(void)
 880 {
 881         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 882
 883         clrsetbits_le32(&iomuxc_regs->gpr[1],
 884                         IOMUXC_GPR1_OTG_ID_MASK,
 885                         IOMUXC_GPR1_OTG_ID_GPIO1);
 886
 887         imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads));
 888
 889         /* address of boot parameters */
 890         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 891
 892 #ifdef CONFIG_MXC_SPI
 893         setup_spi();
 894 #endif
 895         imx_iomux_v3_setup_multiple_pads(
 896                 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 897         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
 898         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 899         setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 900
 901 #ifdef CONFIG_CMD_SATA
 902         setup_sata();
 903 #endif
 904
 905         return 0;
 906 }
 907
 908 int checkboard(void)
 909 {
 910         if (gpio_get_value(WL12XX_WL_IRQ_GP))
 911                 puts("Board: Nitrogen6X\n");
 912         else
 913                 puts("Board: SABRE Lite\n");
 914
 915         return 0;
 916 }
 917
 918 struct button_key {
 919         char const      *name;
 920         unsigned        gpnum;
 921         char            ident;
 922 };
 923
 924 static struct button_key const buttons[] = {
 925         {"back",        IMX_GPIO_NR(2, 2),      'B'},
 926         {"home",        IMX_GPIO_NR(2, 4),      'H'},
 927         {"menu",        IMX_GPIO_NR(2, 1),      'M'},
 928         {"search",      IMX_GPIO_NR(2, 3),      'S'},
 929         {"volup",       IMX_GPIO_NR(7, 13),     'V'},
 930         {"voldown",     IMX_GPIO_NR(4, 5),      'v'},
 931 };
 932
 933 /*
 934  * generate a null-terminated string containing the buttons pressed
 935  * returns number of keys pressed
 936  */
 937 static int read_keys(char *buf)
 938 {
 939         int i, numpressed = 0;
 940         for (i = 0; i < ARRAY_SIZE(buttons); i++) {
 941                 if (!gpio_get_value(buttons[i].gpnum))
 942                         buf[numpressed++] = buttons[i].ident;
 943         }
 944         buf[numpressed] = '\0';
 945         return numpressed;
 946 }
 947
 948 static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 949 {
 950         char envvalue[ARRAY_SIZE(buttons)+1];
 951         int numpressed = read_keys(envvalue);
 952         setenv("keybd", envvalue);
 953         return numpressed == 0;
 954 }
 955
 956 U_BOOT_CMD(
 957         kbd, 1, 1, do_kbd,
 958         "Tests for keypresses, sets 'keybd' environment variable",
 959         "Returns 0 (true) to shell if key is pressed."
 960 );
 961
 962 #ifdef CONFIG_PREBOOT
 963 static char const kbd_magic_prefix[] = "key_magic";
 964 static char const kbd_command_prefix[] = "key_cmd";
 965
 966 static void preboot_keys(void)
 967 {
 968         int numpressed;
 969         char keypress[ARRAY_SIZE(buttons)+1];
 970         numpressed = read_keys(keypress);
 971         if (numpressed) {
 972                 char *kbd_magic_keys = getenv("magic_keys");
 973                 char *suffix;
 974                 /*
 975                  * loop over all magic keys
 976                  */
 977                 for (suffix = kbd_magic_keys; *suffix; ++suffix) {
 978                         char *keys;
 979                         char magic[sizeof(kbd_magic_prefix) + 1];
 980                         sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
 981                         keys = getenv(magic);
 982                         if (keys) {
 983                                 if (!strcmp(keys, keypress))
 984                                         break;
 985                         }
 986                 }
 987                 if (*suffix) {
 988                         char cmd_name[sizeof(kbd_command_prefix) + 1];
 989                         char *cmd;
 990                         sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
 991                         cmd = getenv(cmd_name);
 992                         if (cmd) {
 993                                 setenv("preboot", cmd);
 994                                 return;
 995                         }
 996                 }
 997         }
 998 }
 999 #endif
1000
1001 #ifdef CONFIG_CMD_BMODE
1002 static const struct boot_mode board_boot_modes[] = {
1003         /* 4 bit bus width */
1004         {"mmc0",        MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
1005         {"mmc1",        MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
1006         {NULL,          0},
1007 };
1008 #endif
1009
1010 int misc_init_r(void)
1011 {
1012 #ifdef CONFIG_PREBOOT
1013         preboot_keys();
1014 #endif
1015
1016 #ifdef CONFIG_CMD_BMODE
1017         add_board_boot_modes(board_boot_modes);
1018 #endif
1019         return 0;
1020 }