uboot/board/siemens/dxr2/board.c
<<
>>
Prefs
   1/*
   2 * Board functions for TI AM335X based dxr2 board
   3 * (C) Copyright 2013 Siemens Schweiz AG
   4 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
   5 *
   6 * Based on:
   7 *
   8 * Board functions for TI AM335X based boards
   9 * u-boot:/board/ti/am335x/board.c
  10 *
  11 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  12 *
  13 * SPDX-License-Identifier:     GPL-2.0+
  14 */
  15
  16#include <common.h>
  17#include <errno.h>
  18#include <spl.h>
  19#include <asm/arch/cpu.h>
  20#include <asm/arch/hardware.h>
  21#include <asm/arch/omap.h>
  22#include <asm/arch/ddr_defs.h>
  23#include <asm/arch/clock.h>
  24#include <asm/arch/gpio.h>
  25#include <asm/arch/mmc_host_def.h>
  26#include <asm/arch/sys_proto.h>
  27#include <asm/io.h>
  28#include <asm/emif.h>
  29#include <asm/gpio.h>
  30#include <i2c.h>
  31#include <miiphy.h>
  32#include <cpsw.h>
  33#include <watchdog.h>
  34#include "board.h"
  35#include "../common/factoryset.h"
  36
  37DECLARE_GLOBAL_DATA_PTR;
  38
  39#ifdef CONFIG_SPL_BUILD
  40static struct dxr2_baseboard_id __attribute__((section(".data"))) settings;
  41/* @303MHz-i0 */
  42const struct ddr3_data ddr3_default = {
  43        0x33524444, 0x56312e34, 0x0080, 0x0000, 0x0038, 0x003E, 0x00A4,
  44        0x0075, 0x0888A39B, 0x26247FDA, 0x501F821F, 0x00100206, 0x61A44A32,
  45        0x00000618, 0x0000014A,
  46};
  47
  48static void set_default_ddr3_timings(void)
  49{
  50        printf("Set default DDR3 settings\n");
  51        settings.ddr3 = ddr3_default;
  52}
  53
  54static void print_ddr3_timings(void)
  55{
  56        printf("\n\nDDR3 Timing parameters:\n");
  57        printf("Diff     Eeprom  Default\n");
  58        PRINTARGS(magic);
  59        PRINTARGS(version);
  60        PRINTARGS(ddr3_sratio);
  61        PRINTARGS(iclkout);
  62
  63        PRINTARGS(dt0rdsratio0);
  64        PRINTARGS(dt0wdsratio0);
  65        PRINTARGS(dt0fwsratio0);
  66        PRINTARGS(dt0wrsratio0);
  67
  68        PRINTARGS(sdram_tim1);
  69        PRINTARGS(sdram_tim2);
  70        PRINTARGS(sdram_tim3);
  71
  72        PRINTARGS(emif_ddr_phy_ctlr_1);
  73
  74        PRINTARGS(sdram_config);
  75        PRINTARGS(ref_ctrl);
  76        PRINTARGS(ioctr_val);
  77}
  78
  79static void print_chip_data(void)
  80{
  81        printf("\n");
  82        printf("Device: '%s'\n", settings.chip.sdevname);
  83        printf("HW version: '%s'\n", settings.chip.shwver);
  84}
  85#endif /* CONFIG_SPL_BUILD */
  86
  87/*
  88 * Read header information from EEPROM into global structure.
  89 */
  90static int read_eeprom(void)
  91{
  92        /* Check if baseboard eeprom is available */
  93        if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  94                printf("Could not probe the EEPROM; something fundamentally wrong on the I2C bus.\n");
  95                return 1;
  96        }
  97
  98#ifdef CONFIG_SPL_BUILD
  99        /* Read Siemens eeprom data (DDR3) */
 100        if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_DDR3, 2,
 101                     (uchar *)&settings.ddr3, sizeof(struct ddr3_data))) {
 102                printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\nUse default DDR3 timings\n");
 103                set_default_ddr3_timings();
 104        }
 105        /* Read Siemens eeprom data (CHIP) */
 106        if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, EEPROM_ADDR_CHIP, 2,
 107                     (uchar *)&settings.chip, sizeof(settings.chip)))
 108                printf("Could not read chip settings\n");
 109
 110        if (ddr3_default.magic == settings.ddr3.magic &&
 111            ddr3_default.version == settings.ddr3.version) {
 112                printf("Using DDR3 settings from EEPROM\n");
 113        } else {
 114                if (ddr3_default.magic != settings.ddr3.magic)
 115                        printf("Error: No valid DDR3 data in eeprom.\n");
 116                if (ddr3_default.version != settings.ddr3.version)
 117                        printf("Error: DDR3 data version does not match.\n");
 118
 119                printf("Using default settings\n");
 120                set_default_ddr3_timings();
 121        }
 122
 123        if (MAGIC_CHIP == settings.chip.magic) {
 124                printf("Valid chip data in eeprom\n");
 125                print_chip_data();
 126        } else {
 127                printf("Error: No chip data in eeprom\n");
 128        }
 129
 130        print_ddr3_timings();
 131#endif
 132        return 0;
 133}
 134
 135#ifdef CONFIG_SPL_BUILD
 136static void board_init_ddr(void)
 137{
 138struct emif_regs dxr2_ddr3_emif_reg_data = {
 139        .zq_config = 0x50074BE4,
 140};
 141
 142struct ddr_data dxr2_ddr3_data = {
 143};
 144
 145struct cmd_control dxr2_ddr3_cmd_ctrl_data = {
 146};
 147
 148struct ctrl_ioregs dxr2_ddr3_ioregs = {
 149};
 150
 151        /* pass values from eeprom */
 152        dxr2_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
 153        dxr2_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
 154        dxr2_ddr3_emif_reg_data.sdram_tim3 = settings.ddr3.sdram_tim3;
 155        dxr2_ddr3_emif_reg_data.emif_ddr_phy_ctlr_1 =
 156                settings.ddr3.emif_ddr_phy_ctlr_1;
 157        dxr2_ddr3_emif_reg_data.sdram_config = settings.ddr3.sdram_config;
 158        dxr2_ddr3_emif_reg_data.ref_ctrl = settings.ddr3.ref_ctrl;
 159
 160        dxr2_ddr3_data.datardsratio0 = settings.ddr3.dt0rdsratio0;
 161        dxr2_ddr3_data.datawdsratio0 = settings.ddr3.dt0wdsratio0;
 162        dxr2_ddr3_data.datafwsratio0 = settings.ddr3.dt0fwsratio0;
 163        dxr2_ddr3_data.datawrsratio0 = settings.ddr3.dt0wrsratio0;
 164
 165        dxr2_ddr3_cmd_ctrl_data.cmd0csratio = settings.ddr3.ddr3_sratio;
 166        dxr2_ddr3_cmd_ctrl_data.cmd0iclkout = settings.ddr3.iclkout;
 167        dxr2_ddr3_cmd_ctrl_data.cmd1csratio = settings.ddr3.ddr3_sratio;
 168        dxr2_ddr3_cmd_ctrl_data.cmd1iclkout = settings.ddr3.iclkout;
 169        dxr2_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
 170        dxr2_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
 171
 172        dxr2_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
 173        dxr2_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
 174        dxr2_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
 175        dxr2_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
 176        dxr2_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
 177
 178        config_ddr(DDR_PLL_FREQ, &dxr2_ddr3_ioregs, &dxr2_ddr3_data,
 179                   &dxr2_ddr3_cmd_ctrl_data, &dxr2_ddr3_emif_reg_data, 0);
 180}
 181
 182static void spl_siemens_board_init(void)
 183{
 184        return;
 185}
 186#endif /* if def CONFIG_SPL_BUILD */
 187
 188#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 189        (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 190static void cpsw_control(int enabled)
 191{
 192        /* VTP can be added here */
 193
 194        return;
 195}
 196
 197static struct cpsw_slave_data cpsw_slaves[] = {
 198        {
 199                .slave_reg_ofs  = 0x208,
 200                .sliver_reg_ofs = 0xd80,
 201                .phy_id         = 0,
 202                .phy_if         = PHY_INTERFACE_MODE_MII,
 203        },
 204};
 205
 206static struct cpsw_platform_data cpsw_data = {
 207        .mdio_base              = CPSW_MDIO_BASE,
 208        .cpsw_base              = CPSW_BASE,
 209        .mdio_div               = 0xff,
 210        .channels               = 4,
 211        .cpdma_reg_ofs          = 0x800,
 212        .slaves                 = 1,
 213        .slave_data             = cpsw_slaves,
 214        .ale_reg_ofs            = 0xd00,
 215        .ale_entries            = 1024,
 216        .host_port_reg_ofs      = 0x108,
 217        .hw_stats_reg_ofs       = 0x900,
 218        .bd_ram_ofs             = 0x2000,
 219        .mac_control            = (1 << 5),
 220        .control                = cpsw_control,
 221        .host_port_num          = 0,
 222        .version                = CPSW_CTRL_VERSION_2,
 223};
 224
 225#if defined(CONFIG_DRIVER_TI_CPSW) || \
 226        (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
 227int board_eth_init(bd_t *bis)
 228{
 229        struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 230        int n = 0;
 231        int rv;
 232
 233        factoryset_setenv();
 234
 235        /* Set rgmii mode and enable rmii clock to be sourced from chip */
 236        writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
 237
 238        rv = cpsw_register(&cpsw_data);
 239        if (rv < 0)
 240                printf("Error %d registering CPSW switch\n", rv);
 241        else
 242                n += rv;
 243        return n;
 244}
 245#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
 246#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
 247
 248#include "../common/board.c"
 249