board/freescale/mx35pdk/mx35pdk.c

   1 /*
   2  * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
   3  *
   4  * (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #include <common.h>
  26 #include <asm/io.h>
  27 #include <asm/errno.h>
  28 #include <asm/arch/imx-regs.h>
  29 #include <asm/arch/crm_regs.h>
  30 #include <asm/arch/clock.h>
  31 #include <asm/arch/iomux-mx35.h>
  32 #include <i2c.h>
  33 #include <power/pmic.h>
  34 #include <fsl_pmic.h>
  35 #include <mmc.h>
  36 #include <fsl_esdhc.h>
  37 #include <mc9sdz60.h>
  38 #include <mc13892.h>
  39 #include <linux/types.h>
  40 #include <asm/gpio.h>
  41 #include <asm/arch/sys_proto.h>
  42 #include <netdev.h>
  43
  44 #ifndef CONFIG_BOARD_LATE_INIT
  45 #error "CONFIG_BOARD_LATE_INIT must be set for this board"
  46 #endif
  47
  48 #ifndef CONFIG_BOARD_EARLY_INIT_F
  49 #error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
  50 #endif
  51
  52 DECLARE_GLOBAL_DATA_PTR;
  53
  54 int dram_init(void)
  55 {
  56         u32 size1, size2;
  57
  58         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
  59         size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
  60
  61         gd->ram_size = size1 + size2;
  62
  63         return 0;
  64 }
  65
  66 void dram_init_banksize(void)
  67 {
  68         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  69         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
  70
  71         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  72         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  73 }
  74
  75 #define I2C_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_ODE)
  76
  77 static void setup_iomux_i2c(void)
  78 {
  79         static const iomux_v3_cfg_t i2c1_pads[] = {
  80                 NEW_PAD_CTRL(MX35_PAD_I2C1_CLK__I2C1_SCL, I2C_PAD_CTRL),
  81                 NEW_PAD_CTRL(MX35_PAD_I2C1_DAT__I2C1_SDA, I2C_PAD_CTRL),
  82         };
  83
  84         /* setup pins for I2C1 */
  85         imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
  86 }
  87
  88
  89 static void setup_iomux_spi(void)
  90 {
  91         static const iomux_v3_cfg_t spi_pads[] = {
  92                 MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
  93                 MX35_PAD_CSPI1_MISO__CSPI1_MISO,
  94                 MX35_PAD_CSPI1_SS0__CSPI1_SS0,
  95                 MX35_PAD_CSPI1_SS1__CSPI1_SS1,
  96                 MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
  97         };
  98
  99         imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
 100 }
 101
 102 #define USBOTG_IN_PAD_CTRL      (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | \
 103                                  PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
 104 #define USBOTG_OUT_PAD_CTRL     (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
 105
 106 static void setup_iomux_usbotg(void)
 107 {
 108         static const iomux_v3_cfg_t usbotg_pads[] = {
 109                 NEW_PAD_CTRL(MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
 110                                 USBOTG_OUT_PAD_CTRL),
 111                 NEW_PAD_CTRL(MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
 112                                 USBOTG_IN_PAD_CTRL),
 113         };
 114
 115         /* Set up pins for USBOTG. */
 116         imx_iomux_v3_setup_multiple_pads(usbotg_pads, ARRAY_SIZE(usbotg_pads));
 117 }
 118
 119 #define FEC_PAD_CTRL    (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
 120
 121 static void setup_iomux_fec(void)
 122 {
 123         static const iomux_v3_cfg_t fec_pads[] = {
 124                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_CLK__FEC_TX_CLK, FEC_PAD_CTRL |
 125                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 126                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_CLK__FEC_RX_CLK, FEC_PAD_CTRL |
 127                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 128                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_DV__FEC_RX_DV, FEC_PAD_CTRL |
 129                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 130                 NEW_PAD_CTRL(MX35_PAD_FEC_COL__FEC_COL, FEC_PAD_CTRL |
 131                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 132                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA0__FEC_RDATA_0, FEC_PAD_CTRL |
 133                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 134                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA0__FEC_TDATA_0, FEC_PAD_CTRL),
 135                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_EN__FEC_TX_EN, FEC_PAD_CTRL),
 136                 NEW_PAD_CTRL(MX35_PAD_FEC_MDC__FEC_MDC, FEC_PAD_CTRL),
 137                 NEW_PAD_CTRL(MX35_PAD_FEC_MDIO__FEC_MDIO, FEC_PAD_CTRL |
 138                                         PAD_CTL_HYS | PAD_CTL_PUS_22K_UP),
 139                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_ERR__FEC_TX_ERR, FEC_PAD_CTRL),
 140                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_ERR__FEC_RX_ERR, FEC_PAD_CTRL |
 141                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 142                 NEW_PAD_CTRL(MX35_PAD_FEC_CRS__FEC_CRS, FEC_PAD_CTRL |
 143                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 144                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA1__FEC_RDATA_1, FEC_PAD_CTRL |
 145                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 146                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA1__FEC_TDATA_1, FEC_PAD_CTRL),
 147                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA2__FEC_RDATA_2, FEC_PAD_CTRL |
 148                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 149                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA2__FEC_TDATA_2, FEC_PAD_CTRL),
 150                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA3__FEC_RDATA_3, FEC_PAD_CTRL |
 151                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 152                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA3__FEC_TDATA_3, FEC_PAD_CTRL),
 153         };
 154
 155         /* setup pins for FEC */
 156         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 157 }
 158
 159 int board_early_init_f(void)
 160 {
 161         struct ccm_regs *ccm =
 162                 (struct ccm_regs *)IMX_CCM_BASE;
 163
 164         /* enable clocks */
 165         writel(readl(&ccm->cgr0) |
 166                 MXC_CCM_CGR0_EMI_MASK |
 167                 MXC_CCM_CGR0_EDIO_MASK |
 168                 MXC_CCM_CGR0_EPIT1_MASK,
 169                 &ccm->cgr0);
 170
 171         writel(readl(&ccm->cgr1) |
 172                 MXC_CCM_CGR1_FEC_MASK |
 173                 MXC_CCM_CGR1_GPIO1_MASK |
 174                 MXC_CCM_CGR1_GPIO2_MASK |
 175                 MXC_CCM_CGR1_GPIO3_MASK |
 176                 MXC_CCM_CGR1_I2C1_MASK |
 177                 MXC_CCM_CGR1_I2C2_MASK |
 178                 MXC_CCM_CGR1_IPU_MASK,
 179                 &ccm->cgr1);
 180
 181         /* Setup NAND */
 182         __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
 183
 184         setup_iomux_i2c();
 185         setup_iomux_usbotg();
 186         setup_iomux_fec();
 187         setup_iomux_spi();
 188
 189         return 0;
 190 }
 191
 192 int board_init(void)
 193 {
 194         gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS;    /* board id for linux */
 195         /* address of boot parameters */
 196         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 197
 198         return 0;
 199 }
 200
 201 static inline int pmic_detect(void)
 202 {
 203         unsigned int id;
 204         struct pmic *p = pmic_get("FSL_PMIC");
 205         if (!p)
 206                 return -ENODEV;
 207
 208         pmic_reg_read(p, REG_IDENTIFICATION, &id);
 209
 210         id = (id >> 6) & 0x7;
 211         if (id == 0x7)
 212                 return 1;
 213         return 0;
 214 }
 215
 216 u32 get_board_rev(void)
 217 {
 218         int rev;
 219
 220         rev = pmic_detect();
 221
 222         return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
 223 }
 224
 225 int board_late_init(void)
 226 {
 227         u8 val;
 228         u32 pmic_val;
 229         struct pmic *p;
 230         int ret;
 231
 232         ret = pmic_init(I2C_PMIC);
 233         if (ret)
 234                 return ret;
 235
 236         if (pmic_detect()) {
 237                 p = pmic_get("FSL_PMIC");
 238                 imx_iomux_v3_setup_pad(MX35_PAD_WDOG_RST__WDOG_WDOG_B);
 239
 240                 pmic_reg_read(p, REG_SETTING_0, &pmic_val);
 241                 pmic_reg_write(p, REG_SETTING_0,
 242                         pmic_val | VO_1_30V | VO_1_50V);
 243                 pmic_reg_read(p, REG_MODE_0, &pmic_val);
 244                 pmic_reg_write(p, REG_MODE_0, pmic_val | VGEN3EN);
 245
 246                 imx_iomux_v3_setup_pad(MX35_PAD_COMPARE__GPIO1_5);
 247
 248                 gpio_direction_output(IMX_GPIO_NR(1, 5), 1);
 249         }
 250
 251         val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04;
 252         mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val);
 253         mdelay(200);
 254
 255         val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F;
 256         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 257         mdelay(200);
 258
 259         val |= 0x80;
 260         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 261
 262         /* Print board revision */
 263         printf("Board: MX35 PDK %d.0\n", ((get_board_rev() >> 8) + 1) & 0x0F);
 264
 265         return 0;
 266 }
 267
 268 int board_eth_init(bd_t *bis)
 269 {
 270         int rc = -ENODEV;
 271 #if defined(CONFIG_SMC911X)
 272         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 273 #endif
 274
 275         cpu_eth_init(bis);
 276
 277         return rc;
 278 }
 279
 280 #if defined(CONFIG_FSL_ESDHC)
 281
 282 struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
 283
 284 int board_mmc_init(bd_t *bis)
 285 {
 286         static const iomux_v3_cfg_t sdhc1_pads[] = {
 287                 MX35_PAD_SD1_CMD__ESDHC1_CMD,
 288                 MX35_PAD_SD1_CLK__ESDHC1_CLK,
 289                 MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
 290                 MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 291                 MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 292                 MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
 293         };
 294
 295         /* configure pins for SDHC1 only */
 296         imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
 297
 298         esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
 299         return fsl_esdhc_initialize(bis, &esdhc_cfg);
 300 }
 301
 302 int board_mmc_getcd(struct mmc *mmc)
 303 {
 304         return !(mc9sdz60_reg_read(MC9SDZ60_REG_DES_FLAG) & 0x4);
 305 }
 306 #endif