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  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <asm/io.h>
  11 #include <asm/errno.h>
  12 #include <asm/arch/imx-regs.h>
  13 #include <asm/arch/crm_regs.h>
  14 #include <asm/arch/clock.h>
  15 #include <asm/arch/iomux-mx35.h>
  16 #include <i2c.h>
  17 #include <power/pmic.h>
  18 #include <fsl_pmic.h>
  19 #include <mmc.h>
  20 #include <fsl_esdhc.h>
  21 #include <mc9sdz60.h>
  22 #include <mc13892.h>
  23 #include <linux/types.h>
  24 #include <asm/gpio.h>
  25 #include <asm/arch/sys_proto.h>
  26 #include <netdev.h>
  27
  28 #ifndef CONFIG_BOARD_LATE_INIT
  29 #error "CONFIG_BOARD_LATE_INIT must be set for this board"
  30 #endif
  31
  32 #ifndef CONFIG_BOARD_EARLY_INIT_F
  33 #error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
  34 #endif
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 int dram_init(void)
  39 {
  40         u32 size1, size2;
  41
  42         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
  43         size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
  44
  45         gd->ram_size = size1 + size2;
  46
  47         return 0;
  48 }
  49
  50 void dram_init_banksize(void)
  51 {
  52         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  53         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
  54
  55         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  56         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  57 }
  58
  59 #define I2C_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_ODE)
  60
  61 static void setup_iomux_i2c(void)
  62 {
  63         static const iomux_v3_cfg_t i2c1_pads[] = {
  64                 NEW_PAD_CTRL(MX35_PAD_I2C1_CLK__I2C1_SCL, I2C_PAD_CTRL),
  65                 NEW_PAD_CTRL(MX35_PAD_I2C1_DAT__I2C1_SDA, I2C_PAD_CTRL),
  66         };
  67
  68         /* setup pins for I2C1 */
  69         imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
  70 }
  71
  72
  73 static void setup_iomux_spi(void)
  74 {
  75         static const iomux_v3_cfg_t spi_pads[] = {
  76                 MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
  77                 MX35_PAD_CSPI1_MISO__CSPI1_MISO,
  78                 MX35_PAD_CSPI1_SS0__CSPI1_SS0,
  79                 MX35_PAD_CSPI1_SS1__CSPI1_SS1,
  80                 MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
  81         };
  82
  83         imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
  84 }
  85
  86 #define USBOTG_IN_PAD_CTRL      (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | \
  87                                  PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
  88 #define USBOTG_OUT_PAD_CTRL     (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
  89
  90 static void setup_iomux_usbotg(void)
  91 {
  92         static const iomux_v3_cfg_t usbotg_pads[] = {
  93                 NEW_PAD_CTRL(MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
  94                                 USBOTG_OUT_PAD_CTRL),
  95                 NEW_PAD_CTRL(MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
  96                                 USBOTG_IN_PAD_CTRL),
  97         };
  98
  99         /* Set up pins for USBOTG. */
 100         imx_iomux_v3_setup_multiple_pads(usbotg_pads, ARRAY_SIZE(usbotg_pads));
 101 }
 102
 103 #define FEC_PAD_CTRL    (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
 104
 105 static void setup_iomux_fec(void)
 106 {
 107         static const iomux_v3_cfg_t fec_pads[] = {
 108                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_CLK__FEC_TX_CLK, FEC_PAD_CTRL |
 109                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 110                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_CLK__FEC_RX_CLK, FEC_PAD_CTRL |
 111                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 112                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_DV__FEC_RX_DV, FEC_PAD_CTRL |
 113                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 114                 NEW_PAD_CTRL(MX35_PAD_FEC_COL__FEC_COL, FEC_PAD_CTRL |
 115                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 116                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA0__FEC_RDATA_0, FEC_PAD_CTRL |
 117                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 118                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA0__FEC_TDATA_0, FEC_PAD_CTRL),
 119                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_EN__FEC_TX_EN, FEC_PAD_CTRL),
 120                 NEW_PAD_CTRL(MX35_PAD_FEC_MDC__FEC_MDC, FEC_PAD_CTRL),
 121                 NEW_PAD_CTRL(MX35_PAD_FEC_MDIO__FEC_MDIO, FEC_PAD_CTRL |
 122                                         PAD_CTL_HYS | PAD_CTL_PUS_22K_UP),
 123                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_ERR__FEC_TX_ERR, FEC_PAD_CTRL),
 124                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_ERR__FEC_RX_ERR, FEC_PAD_CTRL |
 125                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 126                 NEW_PAD_CTRL(MX35_PAD_FEC_CRS__FEC_CRS, FEC_PAD_CTRL |
 127                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 128                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA1__FEC_RDATA_1, FEC_PAD_CTRL |
 129                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 130                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA1__FEC_TDATA_1, FEC_PAD_CTRL),
 131                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA2__FEC_RDATA_2, FEC_PAD_CTRL |
 132                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 133                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA2__FEC_TDATA_2, FEC_PAD_CTRL),
 134                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA3__FEC_RDATA_3, FEC_PAD_CTRL |
 135                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 136                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA3__FEC_TDATA_3, FEC_PAD_CTRL),
 137         };
 138
 139         /* setup pins for FEC */
 140         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 141 }
 142
 143 int board_early_init_f(void)
 144 {
 145         struct ccm_regs *ccm =
 146                 (struct ccm_regs *)IMX_CCM_BASE;
 147
 148         /* enable clocks */
 149         writel(readl(&ccm->cgr0) |
 150                 MXC_CCM_CGR0_EMI_MASK |
 151                 MXC_CCM_CGR0_EDIO_MASK |
 152                 MXC_CCM_CGR0_EPIT1_MASK,
 153                 &ccm->cgr0);
 154
 155         writel(readl(&ccm->cgr1) |
 156                 MXC_CCM_CGR1_FEC_MASK |
 157                 MXC_CCM_CGR1_GPIO1_MASK |
 158                 MXC_CCM_CGR1_GPIO2_MASK |
 159                 MXC_CCM_CGR1_GPIO3_MASK |
 160                 MXC_CCM_CGR1_I2C1_MASK |
 161                 MXC_CCM_CGR1_I2C2_MASK |
 162                 MXC_CCM_CGR1_IPU_MASK,
 163                 &ccm->cgr1);
 164
 165         /* Setup NAND */
 166         __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
 167
 168         setup_iomux_i2c();
 169         setup_iomux_usbotg();
 170         setup_iomux_fec();
 171         setup_iomux_spi();
 172
 173         return 0;
 174 }
 175
 176 int board_init(void)
 177 {
 178         gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS;    /* board id for linux */
 179         /* address of boot parameters */
 180         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 181
 182         return 0;
 183 }
 184
 185 static inline int pmic_detect(void)
 186 {
 187         unsigned int id;
 188         struct pmic *p = pmic_get("FSL_PMIC");
 189         if (!p)
 190                 return -ENODEV;
 191
 192         pmic_reg_read(p, REG_IDENTIFICATION, &id);
 193
 194         id = (id >> 6) & 0x7;
 195         if (id == 0x7)
 196                 return 1;
 197         return 0;
 198 }
 199
 200 u32 get_board_rev(void)
 201 {
 202         int rev;
 203
 204         rev = pmic_detect();
 205
 206         return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
 207 }
 208
 209 int board_late_init(void)
 210 {
 211         u8 val;
 212         u32 pmic_val;
 213         struct pmic *p;
 214         int ret;
 215
 216         ret = pmic_init(I2C_PMIC);
 217         if (ret)
 218                 return ret;
 219
 220         if (pmic_detect()) {
 221                 p = pmic_get("FSL_PMIC");
 222                 imx_iomux_v3_setup_pad(MX35_PAD_WDOG_RST__WDOG_WDOG_B);
 223
 224                 pmic_reg_read(p, REG_SETTING_0, &pmic_val);
 225                 pmic_reg_write(p, REG_SETTING_0,
 226                         pmic_val | VO_1_30V | VO_1_50V);
 227                 pmic_reg_read(p, REG_MODE_0, &pmic_val);
 228                 pmic_reg_write(p, REG_MODE_0, pmic_val | VGEN3EN);
 229
 230                 imx_iomux_v3_setup_pad(MX35_PAD_COMPARE__GPIO1_5);
 231
 232                 gpio_direction_output(IMX_GPIO_NR(1, 5), 1);
 233         }
 234
 235         val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04;
 236         mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val);
 237         mdelay(200);
 238
 239         val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F;
 240         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 241         mdelay(200);
 242
 243         val |= 0x80;
 244         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 245
 246         /* Print board revision */
 247         printf("Board: MX35 PDK %d.0\n", ((get_board_rev() >> 8) + 1) & 0x0F);
 248
 249         return 0;
 250 }
 251
 252 int board_eth_init(bd_t *bis)
 253 {
 254         int rc = -ENODEV;
 255 #if defined(CONFIG_SMC911X)
 256         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 257 #endif
 258
 259         cpu_eth_init(bis);
 260
 261         return rc;
 262 }
 263
 264 #if defined(CONFIG_FSL_ESDHC)
 265
 266 struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
 267
 268 int board_mmc_init(bd_t *bis)
 269 {
 270         static const iomux_v3_cfg_t sdhc1_pads[] = {
 271                 MX35_PAD_SD1_CMD__ESDHC1_CMD,
 272                 MX35_PAD_SD1_CLK__ESDHC1_CLK,
 273                 MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
 274                 MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 275                 MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 276                 MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
 277         };
 278
 279         /* configure pins for SDHC1 only */
 280         imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
 281
 282         esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
 283         return fsl_esdhc_initialize(bis, &esdhc_cfg);
 284 }
 285
 286 int board_mmc_getcd(struct mmc *mmc)
 287 {
 288         return !(mc9sdz60_reg_read(MC9SDZ60_REG_DES_FLAG) & 0x4);
 289 }
 290 #endif