board/aristainetos/aristainetos.c

   1 /*
   2  * (C) Copyright 2014
   3  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
   4  *
   5  * Based on:
   6  * Copyright (C) 2012 Freescale Semiconductor, Inc.
   7  *
   8  * Author: Fabio Estevam <fabio.estevam@freescale.com>
   9  *
  10  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <asm/arch/clock.h>
  14 #include <asm/arch/imx-regs.h>
  15 #include <asm/arch/iomux.h>
  16 #include <asm/arch/mx6-pins.h>
  17 #include <linux/errno.h>
  18 #include <asm/gpio.h>
  19 #include <asm/imx-common/iomux-v3.h>
  20 #include <asm/imx-common/boot_mode.h>
  21 #include <asm/imx-common/mxc_i2c.h>
  22 #include <asm/imx-common/video.h>
  23 #include <mmc.h>
  24 #include <fsl_esdhc.h>
  25 #include <miiphy.h>
  26 #include <netdev.h>
  27 #include <asm/arch/mxc_hdmi.h>
  28 #include <asm/arch/crm_regs.h>
  29 #include <linux/fb.h>
  30 #include <ipu_pixfmt.h>
  31 #include <asm/io.h>
  32 #include <asm/arch/sys_proto.h>
  33 #include <pwm.h>
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  38         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  39         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  40
  41 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  42         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  43         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  44
  45 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  46         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  47
  48 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
  49                       PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  50
  51 #define I2C_PAD_CTRL    (PAD_CTL_PUS_100K_UP |                  \
  52         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
  53         PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  54
  55 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  56
  57 #define DISP_PAD_CTRL   (0x10)
  58
  59 #define ECSPI4_CS1              IMX_GPIO_NR(5, 2)
  60
  61 #if (CONFIG_SYS_BOARD_VERSION == 1)
  62 #include "./aristainetos-v1.c"
  63 #elif ((CONFIG_SYS_BOARD_VERSION == 2) || (CONFIG_SYS_BOARD_VERSION == 3))
  64 #include "./aristainetos-v2.c"
  65 #endif
  66
  67
  68 struct i2c_pads_info i2c_pad_info1 = {
  69         .scl = {
  70                 .i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC,
  71                 .gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC,
  72                 .gp = IMX_GPIO_NR(5, 27)
  73         },
  74         .sda = {
  75                 .i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC,
  76                 .gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
  77                 .gp = IMX_GPIO_NR(5, 26)
  78         }
  79 };
  80
  81 struct i2c_pads_info i2c_pad_info2 = {
  82         .scl = {
  83                 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
  84                 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
  85                 .gp = IMX_GPIO_NR(4, 12)
  86         },
  87         .sda = {
  88                 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
  89                 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
  90                 .gp = IMX_GPIO_NR(4, 13)
  91         }
  92 };
  93
  94 iomux_v3_cfg_t const usdhc1_pads[] = {
  95         MX6_PAD_SD1_CLK__SD1_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  96         MX6_PAD_SD1_CMD__SD1_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  97         MX6_PAD_SD1_DAT0__SD1_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  98         MX6_PAD_SD1_DAT1__SD1_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  99         MX6_PAD_SD1_DAT2__SD1_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 100         MX6_PAD_SD1_DAT3__SD1_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 101 };
 102
 103 int dram_init(void)
 104 {
 105         gd->ram_size = imx_ddr_size();
 106
 107         return 0;
 108 }
 109
 110 #ifdef CONFIG_FSL_ESDHC
 111 struct fsl_esdhc_cfg usdhc_cfg[2] = {
 112         {USDHC1_BASE_ADDR},
 113         {USDHC2_BASE_ADDR},
 114 };
 115
 116 int board_mmc_getcd(struct mmc *mmc)
 117 {
 118         return 1;
 119 }
 120
 121 int board_mmc_init(bd_t *bis)
 122 {
 123         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 124         imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
 125 #if (CONFIG_SYS_BOARD_VERSION == 2)
 126         /*
 127          * usdhc2 has a levelshifter on the carrier board Rev. DV1,
 128          * that will automatically detect the driving direction.
 129          * During initialisation this isn't working correctly,
 130          * which causes DAT3 to be driven low towards the SD-card.
 131          * This causes a SD-card enetring the SPI-Mode
 132          * and therefore getting inaccessible until next power cycle.
 133          * As workaround we drive the DAT3 line as GPIO and set it high.
 134          * This makes usdhc2 unusable in u-boot, but works for the
 135          * initialisation in Linux
 136          */
 137         imx_iomux_v3_setup_pad(MX6_PAD_SD2_DAT3__GPIO1_IO12 |
 138                                MUX_PAD_CTRL(NO_PAD_CTRL));
 139         gpio_direction_output(IMX_GPIO_NR(1, 12) , 1);
 140 #endif
 141         return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 142 }
 143 #endif
 144
 145 /*
 146  * Do not overwrite the console
 147  * Use always serial for U-Boot console
 148  */
 149 int overwrite_console(void)
 150 {
 151         return 1;
 152 }
 153
 154 struct display_info_t const displays[] = {
 155         {
 156                 .bus    = -1,
 157                 .addr   = 0,
 158                 .pixfmt = IPU_PIX_FMT_RGB24,
 159                 .detect = NULL,
 160                 .enable = enable_lvds,
 161                 .mode   = {
 162                         .name           = "lb07wv8",
 163                         .refresh        = 60,
 164                         .xres           = 800,
 165                         .yres           = 480,
 166                         .pixclock       = 30066,
 167                         .left_margin    = 88,
 168                         .right_margin   = 88,
 169                         .upper_margin   = 20,
 170                         .lower_margin   = 20,
 171                         .hsync_len      = 80,
 172                         .vsync_len      = 5,
 173                         .sync           = FB_SYNC_EXT,
 174                         .vmode          = FB_VMODE_NONINTERLACED
 175                 }
 176         }
 177 #if ((CONFIG_SYS_BOARD_VERSION == 2) || (CONFIG_SYS_BOARD_VERSION == 3))
 178         , {
 179                 .bus    = -1,
 180                 .addr   = 0,
 181                 .pixfmt = IPU_PIX_FMT_RGB24,
 182                 .detect = NULL,
 183                 .enable = enable_spi_display,
 184                 .mode   = {
 185                         .name           = "lg4573",
 186                         .refresh        = 57,
 187                         .xres           = 480,
 188                         .yres           = 800,
 189                         .pixclock       = 37037,
 190                         .left_margin    = 59,
 191                         .right_margin   = 10,
 192                         .upper_margin   = 15,
 193                         .lower_margin   = 15,
 194                         .hsync_len      = 10,
 195                         .vsync_len      = 15,
 196                         .sync           = FB_SYNC_EXT | FB_SYNC_HOR_HIGH_ACT |
 197                                           FB_SYNC_VERT_HIGH_ACT,
 198                         .vmode          = FB_VMODE_NONINTERLACED
 199                 }
 200         }
 201 #endif
 202 };
 203 size_t display_count = ARRAY_SIZE(displays);
 204
 205 /* no console on this board */
 206 int board_cfb_skip(void)
 207 {
 208         return 1;
 209 }
 210
 211 iomux_v3_cfg_t nfc_pads[] = {
 212         MX6_PAD_NANDF_CLE__NAND_CLE             | MUX_PAD_CTRL(NO_PAD_CTRL),
 213         MX6_PAD_NANDF_ALE__NAND_ALE             | MUX_PAD_CTRL(NO_PAD_CTRL),
 214         MX6_PAD_NANDF_WP_B__NAND_WP_B   | MUX_PAD_CTRL(NO_PAD_CTRL),
 215         MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL),
 216         MX6_PAD_NANDF_CS0__NAND_CE0_B           | MUX_PAD_CTRL(NO_PAD_CTRL),
 217         MX6_PAD_SD4_CMD__NAND_RE_B              | MUX_PAD_CTRL(NO_PAD_CTRL),
 218         MX6_PAD_SD4_CLK__NAND_WE_B              | MUX_PAD_CTRL(NO_PAD_CTRL),
 219         MX6_PAD_NANDF_D0__NAND_DATA00           | MUX_PAD_CTRL(NO_PAD_CTRL),
 220         MX6_PAD_NANDF_D1__NAND_DATA01           | MUX_PAD_CTRL(NO_PAD_CTRL),
 221         MX6_PAD_NANDF_D2__NAND_DATA02           | MUX_PAD_CTRL(NO_PAD_CTRL),
 222         MX6_PAD_NANDF_D3__NAND_DATA03           | MUX_PAD_CTRL(NO_PAD_CTRL),
 223         MX6_PAD_NANDF_D4__NAND_DATA04           | MUX_PAD_CTRL(NO_PAD_CTRL),
 224         MX6_PAD_NANDF_D5__NAND_DATA05           | MUX_PAD_CTRL(NO_PAD_CTRL),
 225         MX6_PAD_NANDF_D6__NAND_DATA06           | MUX_PAD_CTRL(NO_PAD_CTRL),
 226         MX6_PAD_NANDF_D7__NAND_DATA07           | MUX_PAD_CTRL(NO_PAD_CTRL),
 227         MX6_PAD_SD4_DAT0__NAND_DQS              | MUX_PAD_CTRL(NO_PAD_CTRL),
 228 };
 229
 230 static void setup_gpmi_nand(void)
 231 {
 232         struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 233
 234         /* config gpmi nand iomux */
 235         imx_iomux_v3_setup_multiple_pads(nfc_pads,
 236                                          ARRAY_SIZE(nfc_pads));
 237
 238         /* gate ENFC_CLK_ROOT clock first,before clk source switch */
 239         clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
 240
 241         /* config gpmi and bch clock to 100 MHz */
 242         clrsetbits_le32(&mxc_ccm->cs2cdr,
 243                         MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
 244                         MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
 245                         MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
 246                         MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
 247                         MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
 248                         MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
 249
 250         /* enable ENFC_CLK_ROOT clock */
 251         setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
 252
 253         /* enable gpmi and bch clock gating */
 254         setbits_le32(&mxc_ccm->CCGR4,
 255                      MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
 256                      MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
 257                      MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
 258                      MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
 259                      MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
 260
 261         /* enable apbh clock gating */
 262         setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
 263 }
 264
 265 int board_init(void)
 266 {
 267         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
 268
 269         /* address of boot parameters */
 270         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 271
 272         setup_spi();
 273
 274         setup_i2c(0, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
 275                   &i2c_pad_info1);
 276         setup_i2c(1, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
 277                   &i2c_pad_info2);
 278         setup_i2c(2, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
 279                   &i2c_pad_info3);
 280         setup_i2c4();
 281
 282         /* SPI NOR Flash read only */
 283         gpio_request(CONFIG_GPIO_ENABLE_SPI_FLASH, "ena_spi_nor");
 284         gpio_direction_output(CONFIG_GPIO_ENABLE_SPI_FLASH, 0);
 285         gpio_free(CONFIG_GPIO_ENABLE_SPI_FLASH);
 286
 287         setup_board_gpio();
 288         setup_gpmi_nand();
 289         setup_board_spi();
 290
 291         /* GPIO_1 for USB_OTG_ID */
 292         clrsetbits_le32(&iomux->gpr[1], IOMUXC_GPR1_USB_OTG_ID_SEL_MASK, 0);
 293         imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads));
 294         return 0;
 295 }
 296
 297 int checkboard(void)
 298 {
 299         printf("Board: %s\n", CONFIG_BOARDNAME);
 300         return 0;
 301 }
 302
 303 #ifdef CONFIG_USB_EHCI_MX6
 304 int board_ehci_hcd_init(int port)
 305 {
 306         int ret;
 307
 308         ret = gpio_request(ARISTAINETOS_USB_H1_PWR, "usb-h1-pwr");
 309         if (!ret)
 310                 gpio_direction_output(ARISTAINETOS_USB_H1_PWR, 1);
 311         ret = gpio_request(ARISTAINETOS_USB_OTG_PWR, "usb-OTG-pwr");
 312         if (!ret)
 313                 gpio_direction_output(ARISTAINETOS_USB_OTG_PWR, 1);
 314         return 0;
 315 }
 316
 317 int board_ehci_power(int port, int on)
 318 {
 319         if (port)
 320                 gpio_set_value(ARISTAINETOS_USB_OTG_PWR, on);
 321         else
 322                 gpio_set_value(ARISTAINETOS_USB_H1_PWR, on);
 323         return 0;
 324 }
 325 #endif