board/davinci/dm365evm/dm365evm.c

   1 /*
   2  * Copyright (C) 2009 Texas Instruments Incorporated
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <nand.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/hardware.h>
  11 #include <asm/arch/emif_defs.h>
  12 #include <asm/arch/nand_defs.h>
  13 #include <asm/arch/gpio.h>
  14 #include <netdev.h>
  15 #include <asm/arch/davinci_misc.h>
  16 #ifdef CONFIG_DAVINCI_MMC
  17 #include <mmc.h>
  18 #include <asm/arch/sdmmc_defs.h>
  19 #endif
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 int board_init(void)
  24 {
  25         gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM365_EVM;
  26         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
  27
  28         return 0;
  29 }
  30
  31 #ifdef CONFIG_DRIVER_TI_EMAC
  32 int board_eth_init(bd_t *bis)
  33 {
  34         uint8_t eeprom_enetaddr[6];
  35         int i;
  36         struct davinci_gpio *gpio1_base =
  37                         (struct davinci_gpio *)DAVINCI_GPIO_BANK01;
  38
  39         /* Configure PINMUX 3 to enable EMAC pins */
  40         writel((readl(PINMUX3) | 0x1affff), PINMUX3);
  41
  42         /* Configure GPIO20 as output */
  43         writel((readl(&gpio1_base->dir) & ~(1 << 20)), &gpio1_base->dir);
  44
  45         /* Toggle GPIO 20 */
  46         for (i = 0; i < 20; i++) {
  47                 /* GPIO 20 low */
  48                 writel((readl(&gpio1_base->out_data) & ~(1 << 20)),
  49                                                 &gpio1_base->out_data);
  50
  51                 udelay(1000);
  52
  53                 /* GPIO 20 high */
  54                 writel((readl(&gpio1_base->out_data) | (1 << 20)),
  55                                                 &gpio1_base->out_data);
  56         }
  57
  58         /* Configure I2C pins so that EEPROM can be read */
  59         writel((readl(PINMUX3) | 0x01400000), PINMUX3);
  60
  61         /* Read Ethernet MAC address from EEPROM */
  62         if (dvevm_read_mac_address(eeprom_enetaddr))
  63                 davinci_sync_env_enetaddr(eeprom_enetaddr);
  64
  65         davinci_emac_initialize();
  66
  67         return 0;
  68 }
  69 #endif
  70
  71 #ifdef CONFIG_NAND_DAVINCI
  72 static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip)
  73 {
  74         struct nand_chip        *this = mtd->priv;
  75         unsigned long           wbase = (unsigned long) this->IO_ADDR_W;
  76         unsigned long           rbase = (unsigned long) this->IO_ADDR_R;
  77
  78         if (chip == 1) {
  79                 __set_bit(14, &wbase);
  80                 __set_bit(14, &rbase);
  81         } else {
  82                 __clear_bit(14, &wbase);
  83                 __clear_bit(14, &rbase);
  84         }
  85         this->IO_ADDR_W = (void *)wbase;
  86         this->IO_ADDR_R = (void *)rbase;
  87 }
  88
  89 int board_nand_init(struct nand_chip *nand)
  90 {
  91         davinci_nand_init(nand);
  92         nand->select_chip = nand_dm365evm_select_chip;
  93         return 0;
  94 }
  95 #endif
  96
  97 #ifdef CONFIG_DAVINCI_MMC
  98 static struct davinci_mmc mmc_sd0 = {
  99         .reg_base       = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
 100         .input_clk      = 121500000,
 101         .host_caps      = MMC_MODE_4BIT,
 102         .voltages       = MMC_VDD_32_33 | MMC_VDD_33_34,
 103         .version        = MMC_CTLR_VERSION_2,
 104 };
 105
 106 #ifdef CONFIG_DAVINCI_MMC_SD1
 107 static struct davinci_mmc mmc_sd1 = {
 108         .reg_base       = (struct davinci_mmc_regs *)DAVINCI_MMC_SD1_BASE,
 109         .input_clk      = 121500000,
 110         .host_caps      = MMC_MODE_4BIT,
 111         .voltages       = MMC_VDD_32_33 | MMC_VDD_33_34,
 112         .version        = MMC_CTLR_VERSION_2,
 113 };
 114 #endif
 115
 116 int board_mmc_init(bd_t *bis)
 117 {
 118         int err;
 119
 120         /* Add slot-0 to mmc subsystem */
 121         err = davinci_mmc_init(bis, &mmc_sd0);
 122         if (err)
 123                 return err;
 124
 125 #ifdef CONFIG_DAVINCI_MMC_SD1
 126 #define PUPDCTL1                0x01c4007c
 127         /* PINMUX(4)-DAT0-3/CMD;  PINMUX(0)-CLK */
 128         writel((readl(PINMUX4) | 0x55400000), PINMUX4);
 129         writel((readl(PINMUX0) | 0x00010000), PINMUX0);
 130
 131         /* Configure MMC/SD pins as pullup */
 132         writel((readl(PUPDCTL1) & ~0x07c0), PUPDCTL1);
 133
 134         /* Add slot-1 to mmc subsystem */
 135         err = davinci_mmc_init(bis, &mmc_sd1);
 136 #endif
 137
 138         return err;
 139 }
 140 #endif