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 <linux/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 #include <asm/mach-types.h>
  28
  29 #ifndef CONFIG_BOARD_LATE_INIT
  30 #error "CONFIG_BOARD_LATE_INIT must be set for this board"
  31 #endif
  32
  33 #ifndef CONFIG_BOARD_EARLY_INIT_F
  34 #error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
  35 #endif
  36
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 int dram_init(void)
  40 {
  41         u32 size1, size2;
  42
  43         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
  44         size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
  45
  46         gd->ram_size = size1 + size2;
  47
  48         return 0;
  49 }
  50
  51 int dram_init_banksize(void)
  52 {
  53         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  54         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
  55
  56         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  57         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  58
  59         return 0;
  60 }
  61
  62 #define I2C_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_ODE)
  63
  64 static void setup_iomux_i2c(void)
  65 {
  66         static const iomux_v3_cfg_t i2c1_pads[] = {
  67                 NEW_PAD_CTRL(MX35_PAD_I2C1_CLK__I2C1_SCL, I2C_PAD_CTRL),
  68                 NEW_PAD_CTRL(MX35_PAD_I2C1_DAT__I2C1_SDA, I2C_PAD_CTRL),
  69         };
  70
  71         /* setup pins for I2C1 */
  72         imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
  73 }
  74
  75
  76 static void setup_iomux_spi(void)
  77 {
  78         static const iomux_v3_cfg_t spi_pads[] = {
  79                 MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
  80                 MX35_PAD_CSPI1_MISO__CSPI1_MISO,
  81                 MX35_PAD_CSPI1_SS0__CSPI1_SS0,
  82                 MX35_PAD_CSPI1_SS1__CSPI1_SS1,
  83                 MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
  84         };
  85
  86         imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
  87 }
  88
  89 #define USBOTG_IN_PAD_CTRL      (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | \
  90                                  PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
  91 #define USBOTG_OUT_PAD_CTRL     (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
  92
  93 static void setup_iomux_usbotg(void)
  94 {
  95         static const iomux_v3_cfg_t usbotg_pads[] = {
  96                 NEW_PAD_CTRL(MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
  97                                 USBOTG_OUT_PAD_CTRL),
  98                 NEW_PAD_CTRL(MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
  99                                 USBOTG_IN_PAD_CTRL),
 100         };
 101
 102         /* Set up pins for USBOTG. */
 103         imx_iomux_v3_setup_multiple_pads(usbotg_pads, ARRAY_SIZE(usbotg_pads));
 104 }
 105
 106 #define FEC_PAD_CTRL    (PAD_CTL_DSE_LOW | PAD_CTL_SRE_SLOW)
 107
 108 static void setup_iomux_fec(void)
 109 {
 110         static const iomux_v3_cfg_t fec_pads[] = {
 111                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_CLK__FEC_TX_CLK, FEC_PAD_CTRL |
 112                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 113                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_CLK__FEC_RX_CLK, FEC_PAD_CTRL |
 114                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 115                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_DV__FEC_RX_DV, FEC_PAD_CTRL |
 116                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 117                 NEW_PAD_CTRL(MX35_PAD_FEC_COL__FEC_COL, FEC_PAD_CTRL |
 118                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 119                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA0__FEC_RDATA_0, FEC_PAD_CTRL |
 120                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 121                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA0__FEC_TDATA_0, FEC_PAD_CTRL),
 122                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_EN__FEC_TX_EN, FEC_PAD_CTRL),
 123                 NEW_PAD_CTRL(MX35_PAD_FEC_MDC__FEC_MDC, FEC_PAD_CTRL),
 124                 NEW_PAD_CTRL(MX35_PAD_FEC_MDIO__FEC_MDIO, FEC_PAD_CTRL |
 125                                         PAD_CTL_HYS | PAD_CTL_PUS_22K_UP),
 126                 NEW_PAD_CTRL(MX35_PAD_FEC_TX_ERR__FEC_TX_ERR, FEC_PAD_CTRL),
 127                 NEW_PAD_CTRL(MX35_PAD_FEC_RX_ERR__FEC_RX_ERR, FEC_PAD_CTRL |
 128                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 129                 NEW_PAD_CTRL(MX35_PAD_FEC_CRS__FEC_CRS, FEC_PAD_CTRL |
 130                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 131                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA1__FEC_RDATA_1, FEC_PAD_CTRL |
 132                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 133                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA1__FEC_TDATA_1, FEC_PAD_CTRL),
 134                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA2__FEC_RDATA_2, FEC_PAD_CTRL |
 135                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 136                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA2__FEC_TDATA_2, FEC_PAD_CTRL),
 137                 NEW_PAD_CTRL(MX35_PAD_FEC_RDATA3__FEC_RDATA_3, FEC_PAD_CTRL |
 138                                         PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN),
 139                 NEW_PAD_CTRL(MX35_PAD_FEC_TDATA3__FEC_TDATA_3, FEC_PAD_CTRL),
 140         };
 141
 142         /* setup pins for FEC */
 143         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 144 }
 145
 146 int board_early_init_f(void)
 147 {
 148         struct ccm_regs *ccm =
 149                 (struct ccm_regs *)IMX_CCM_BASE;
 150
 151         /* enable clocks */
 152         writel(readl(&ccm->cgr0) |
 153                 MXC_CCM_CGR0_EMI_MASK |
 154                 MXC_CCM_CGR0_EDIO_MASK |
 155                 MXC_CCM_CGR0_EPIT1_MASK,
 156                 &ccm->cgr0);
 157
 158         writel(readl(&ccm->cgr1) |
 159                 MXC_CCM_CGR1_FEC_MASK |
 160                 MXC_CCM_CGR1_GPIO1_MASK |
 161                 MXC_CCM_CGR1_GPIO2_MASK |
 162                 MXC_CCM_CGR1_GPIO3_MASK |
 163                 MXC_CCM_CGR1_I2C1_MASK |
 164                 MXC_CCM_CGR1_I2C2_MASK |
 165                 MXC_CCM_CGR1_IPU_MASK,
 166                 &ccm->cgr1);
 167
 168         /* Setup NAND */
 169         __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
 170
 171         setup_iomux_i2c();
 172         setup_iomux_usbotg();
 173         setup_iomux_fec();
 174         setup_iomux_spi();
 175
 176         return 0;
 177 }
 178
 179 int board_init(void)
 180 {
 181         gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS;    /* board id for linux */
 182         /* address of boot parameters */
 183         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 184
 185         return 0;
 186 }
 187
 188 static inline int pmic_detect(void)
 189 {
 190         unsigned int id;
 191         struct pmic *p = pmic_get("FSL_PMIC");
 192         if (!p)
 193                 return -ENODEV;
 194
 195         pmic_reg_read(p, REG_IDENTIFICATION, &id);
 196
 197         id = (id >> 6) & 0x7;
 198         if (id == 0x7)
 199                 return 1;
 200         return 0;
 201 }
 202
 203 u32 get_board_rev(void)
 204 {
 205         int rev;
 206
 207         rev = pmic_detect();
 208
 209         return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
 210 }
 211
 212 int board_late_init(void)
 213 {
 214         u8 val;
 215         u32 pmic_val;
 216         struct pmic *p;
 217         int ret;
 218
 219         ret = pmic_init(I2C_0);
 220         if (ret)
 221                 return ret;
 222
 223         if (pmic_detect()) {
 224                 p = pmic_get("FSL_PMIC");
 225                 imx_iomux_v3_setup_pad(MX35_PAD_WDOG_RST__WDOG_WDOG_B);
 226
 227                 pmic_reg_read(p, REG_SETTING_0, &pmic_val);
 228                 pmic_reg_write(p, REG_SETTING_0,
 229                         pmic_val | VO_1_30V | VO_1_50V);
 230                 pmic_reg_read(p, REG_MODE_0, &pmic_val);
 231                 pmic_reg_write(p, REG_MODE_0, pmic_val | VGEN3EN);
 232
 233                 imx_iomux_v3_setup_pad(MX35_PAD_COMPARE__GPIO1_5);
 234
 235                 gpio_direction_output(IMX_GPIO_NR(1, 5), 1);
 236         }
 237
 238         val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04;
 239         mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val);
 240         mdelay(200);
 241
 242         val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F;
 243         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 244         mdelay(200);
 245
 246         val |= 0x80;
 247         mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val);
 248
 249         /* Print board revision */
 250         printf("Board: MX35 PDK %d.0\n", ((get_board_rev() >> 8) + 1) & 0x0F);
 251
 252         return 0;
 253 }
 254
 255 int board_eth_init(bd_t *bis)
 256 {
 257 #if defined(CONFIG_SMC911X)
 258         int rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 259         if (rc)
 260                 return rc;
 261 #endif
 262         return cpu_eth_init(bis);
 263 }
 264
 265 #if defined(CONFIG_FSL_ESDHC)
 266
 267 struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
 268
 269 int board_mmc_init(bd_t *bis)
 270 {
 271         static const iomux_v3_cfg_t sdhc1_pads[] = {
 272                 MX35_PAD_SD1_CMD__ESDHC1_CMD,
 273                 MX35_PAD_SD1_CLK__ESDHC1_CLK,
 274                 MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
 275                 MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 276                 MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 277                 MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
 278         };
 279
 280         /* configure pins for SDHC1 only */
 281         imx_iomux_v3_setup_multiple_pads(sdhc1_pads, ARRAY_SIZE(sdhc1_pads));
 282
 283         esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
 284         return fsl_esdhc_initialize(bis, &esdhc_cfg);
 285 }
 286
 287 int board_mmc_getcd(struct mmc *mmc)
 288 {
 289         return !(mc9sdz60_reg_read(MC9SDZ60_REG_DES_FLAG) & 0x4);
 290 }
 291 #endif