board/phytec/pcm051/board.c

   1 /*
   2  * board.c
   3  *
   4  * Board functions for Phytec phyCORE-AM335x (pcm051) based boards
   5  *
   6  * Copyright (C) 2013 Lemonage Software GmbH
   7  * Author Lars Poeschel <poeschel@lemonage.de>
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <errno.h>
  14 #include <spl.h>
  15 #include <asm/arch/cpu.h>
  16 #include <asm/arch/hardware.h>
  17 #include <asm/arch/omap.h>
  18 #include <asm/arch/ddr_defs.h>
  19 #include <asm/arch/clock.h>
  20 #include <asm/arch/gpio.h>
  21 #include <asm/arch/mmc_host_def.h>
  22 #include <asm/arch/sys_proto.h>
  23 #include <asm/io.h>
  24 #include <asm/emif.h>
  25 #include <asm/gpio.h>
  26 #include <i2c.h>
  27 #include <miiphy.h>
  28 #include <cpsw.h>
  29 #include "board.h"
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 /* MII mode defines */
  34 #define MII_MODE_ENABLE         0x0
  35 #define RGMII_MODE_ENABLE       0xA
  36 #define RMII_RGMII2_MODE_ENABLE 0x49
  37
  38 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  39
  40 #ifdef CONFIG_SPL_BUILD
  41
  42 /* DDR RAM defines */
  43 #define DDR_CLK_MHZ             303 /* DDR_DPLL_MULT value */
  44
  45 #define OSC     (V_OSCK/1000000)
  46 const struct dpll_params dpll_ddr = {
  47                 DDR_CLK_MHZ, OSC-1, 1, -1, -1, -1, -1};
  48
  49 const struct dpll_params *get_dpll_ddr_params(void)
  50 {
  51         return &dpll_ddr;
  52 }
  53
  54 static const struct ddr_data ddr3_data = {
  55         .datardsratio0 = MT41J256M8HX15E_RD_DQS,
  56         .datawdsratio0 = MT41J256M8HX15E_WR_DQS,
  57         .datafwsratio0 = MT41J256M8HX15E_PHY_FIFO_WE,
  58         .datawrsratio0 = MT41J256M8HX15E_PHY_WR_DATA,
  59         .datadldiff0 = PHY_DLL_LOCK_DIFF,
  60 };
  61
  62 static const struct cmd_control ddr3_cmd_ctrl_data = {
  63         .cmd0csratio = MT41J256M8HX15E_RATIO,
  64         .cmd0dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
  65         .cmd0iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
  66
  67         .cmd1csratio = MT41J256M8HX15E_RATIO,
  68         .cmd1dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
  69         .cmd1iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
  70
  71         .cmd2csratio = MT41J256M8HX15E_RATIO,
  72         .cmd2dldiff = MT41J256M8HX15E_DLL_LOCK_DIFF,
  73         .cmd2iclkout = MT41J256M8HX15E_INVERT_CLKOUT,
  74 };
  75
  76 static struct emif_regs ddr3_emif_reg_data = {
  77         .sdram_config = MT41J256M8HX15E_EMIF_SDCFG,
  78         .ref_ctrl = MT41J256M8HX15E_EMIF_SDREF,
  79         .sdram_tim1 = MT41J256M8HX15E_EMIF_TIM1,
  80         .sdram_tim2 = MT41J256M8HX15E_EMIF_TIM2,
  81         .sdram_tim3 = MT41J256M8HX15E_EMIF_TIM3,
  82         .zq_config = MT41J256M8HX15E_ZQ_CFG,
  83         .emif_ddr_phy_ctlr_1 = MT41J256M8HX15E_EMIF_READ_LATENCY |
  84                                 PHY_EN_DYN_PWRDN,
  85 };
  86
  87 void set_uart_mux_conf(void)
  88 {
  89         enable_uart0_pin_mux();
  90 }
  91
  92 void set_mux_conf_regs(void)
  93 {
  94         /* Initalize the board header */
  95         enable_i2c0_pin_mux();
  96         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
  97
  98         enable_board_pin_mux();
  99 }
 100
 101 void sdram_init(void)
 102 {
 103         config_ddr(DDR_CLK_MHZ, MT41J256M8HX15E_IOCTRL_VALUE, &ddr3_data,
 104                         &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 105 }
 106 #endif
 107
 108 /*
 109  * Basic board specific setup.  Pinmux has been handled already.
 110  */
 111 int board_init(void)
 112 {
 113         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 114
 115         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 116
 117         return 0;
 118 }
 119
 120 #ifdef CONFIG_DRIVER_TI_CPSW
 121 static void cpsw_control(int enabled)
 122 {
 123         /* VTP can be added here */
 124
 125         return;
 126 }
 127
 128 static struct cpsw_slave_data cpsw_slaves[] = {
 129         {
 130                 .slave_reg_ofs  = 0x208,
 131                 .sliver_reg_ofs = 0xd80,
 132                 .phy_id         = 0,
 133                 .phy_if         = PHY_INTERFACE_MODE_RGMII,
 134         },
 135         {
 136                 .slave_reg_ofs  = 0x308,
 137                 .sliver_reg_ofs = 0xdc0,
 138                 .phy_id         = 1,
 139                 .phy_if         = PHY_INTERFACE_MODE_RGMII,
 140         },
 141 };
 142
 143 static struct cpsw_platform_data cpsw_data = {
 144         .mdio_base              = CPSW_MDIO_BASE,
 145         .cpsw_base              = CPSW_BASE,
 146         .mdio_div               = 0xff,
 147         .channels               = 8,
 148         .cpdma_reg_ofs          = 0x800,
 149         .slaves                 = 1,
 150         .slave_data             = cpsw_slaves,
 151         .ale_reg_ofs            = 0xd00,
 152         .ale_entries            = 1024,
 153         .host_port_reg_ofs      = 0x108,
 154         .hw_stats_reg_ofs       = 0x900,
 155         .mac_control            = (1 << 5),
 156         .control                = cpsw_control,
 157         .host_port_num          = 0,
 158         .version                = CPSW_CTRL_VERSION_2,
 159 };
 160 #endif
 161
 162 #if defined(CONFIG_DRIVER_TI_CPSW) || \
 163         (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
 164 int board_eth_init(bd_t *bis)
 165 {
 166         int rv, n = 0;
 167 #ifdef CONFIG_DRIVER_TI_CPSW
 168         uint8_t mac_addr[6];
 169         uint32_t mac_hi, mac_lo;
 170
 171         if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
 172                 printf("<ethaddr> not set. Reading from E-fuse\n");
 173                 /* try reading mac address from efuse */
 174                 mac_lo = readl(&cdev->macid0l);
 175                 mac_hi = readl(&cdev->macid0h);
 176                 mac_addr[0] = mac_hi & 0xFF;
 177                 mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 178                 mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 179                 mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 180                 mac_addr[4] = mac_lo & 0xFF;
 181                 mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 182
 183                 if (is_valid_ether_addr(mac_addr))
 184                         eth_setenv_enetaddr("ethaddr", mac_addr);
 185                 else
 186                         goto try_usbether;
 187         }
 188
 189         writel(RMII_RGMII2_MODE_ENABLE, &cdev->miisel);
 190
 191         rv = cpsw_register(&cpsw_data);
 192         if (rv < 0)
 193                 printf("Error %d registering CPSW switch\n", rv);
 194         else
 195                 n += rv;
 196 try_usbether:
 197 #endif
 198
 199 #if defined(CONFIG_USB_ETHER) && !defined(CONFIG_SPL_BUILD)
 200         rv = usb_eth_initialize(bis);
 201         if (rv < 0)
 202                 printf("Error %d registering USB_ETHER\n", rv);
 203         else
 204                 n += rv;
 205 #endif
 206         return n;
 207 }
 208 #endif