board/siemens/rut/board.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Board functions for TI AM335X based rut board
   4  * (C) Copyright 2013 Siemens Schweiz AG
   5  * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
   6  *
   7  * Based on:
   8  * u-boot:/board/ti/am335x/board.c
   9  *
  10  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  11  */
  12
  13 #include <common.h>
  14 #include <env.h>
  15 #include <errno.h>
  16 #include <init.h>
  17 #include <malloc.h>
  18 #include <net.h>
  19 #include <spi.h>
  20 #include <spl.h>
  21 #include <asm/arch/cpu.h>
  22 #include <asm/arch/hardware.h>
  23 #include <asm/arch/omap.h>
  24 #include <asm/arch/ddr_defs.h>
  25 #include <asm/arch/clock.h>
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/mmc_host_def.h>
  28 #include <asm/arch/sys_proto.h>
  29 #include <asm/io.h>
  30 #include <asm/emif.h>
  31 #include <asm/gpio.h>
  32 #include <i2c.h>
  33 #include <miiphy.h>
  34 #include <cpsw.h>
  35 #include <video.h>
  36 #include <watchdog.h>
  37 #include <linux/delay.h>
  38 #include "board.h"
  39 #include "../common/factoryset.h"
  40
  41 /*
  42  * Read header information from EEPROM into global structure.
  43  */
  44 static int read_eeprom(void)
  45 {
  46         return 0;
  47 }
  48
  49 #ifdef CONFIG_SPL_BUILD
  50 static void board_init_ddr(void)
  51 {
  52 struct emif_regs rut_ddr3_emif_reg_data = {
  53         .sdram_config = 0x61C04AB2,
  54         .sdram_tim1 = 0x0888A39B,
  55         .sdram_tim2 = 0x26337FDA,
  56         .sdram_tim3 = 0x501F830F,
  57         .emif_ddr_phy_ctlr_1 = 0x6,
  58         .zq_config = 0x50074BE4,
  59         .ref_ctrl = 0x93B,
  60 };
  61
  62 struct ddr_data rut_ddr3_data = {
  63         .datardsratio0 = 0x3b,
  64         .datawdsratio0 = 0x85,
  65         .datafwsratio0 = 0x100,
  66         .datawrsratio0 = 0xc1,
  67 };
  68
  69 struct cmd_control rut_ddr3_cmd_ctrl_data = {
  70         .cmd0csratio = 0x40,
  71         .cmd0iclkout = 1,
  72         .cmd1csratio = 0x40,
  73         .cmd1iclkout = 1,
  74         .cmd2csratio = 0x40,
  75         .cmd2iclkout = 1,
  76 };
  77
  78 const struct ctrl_ioregs ioregs = {
  79         .cm0ioctl               = RUT_IOCTRL_VAL,
  80         .cm1ioctl               = RUT_IOCTRL_VAL,
  81         .cm2ioctl               = RUT_IOCTRL_VAL,
  82         .dt0ioctl               = RUT_IOCTRL_VAL,
  83         .dt1ioctl               = RUT_IOCTRL_VAL,
  84 };
  85
  86         config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data,
  87                    &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0);
  88 }
  89
  90 static int request_and_pulse_reset(int gpio, const char *name)
  91 {
  92         int ret;
  93         const int delay_us = 2000; /* 2ms */
  94
  95         ret = gpio_request(gpio, name);
  96         if (ret < 0) {
  97                 printf("%s: Unable to request %s\n", __func__, name);
  98                 goto err;
  99         }
 100
 101         ret = gpio_direction_output(gpio, 0);
 102         if (ret < 0) {
 103                 printf("%s: Unable to set %s  as output\n", __func__, name);
 104                 goto err_free_gpio;
 105         }
 106
 107         udelay(delay_us);
 108
 109         gpio_set_value(gpio, 1);
 110
 111         return 0;
 112
 113 err_free_gpio:
 114         gpio_free(gpio);
 115 err:
 116         return ret;
 117 }
 118
 119 #define GPIO_TO_PIN(bank, gpio)         (32 * (bank) + (gpio))
 120 #define ETH_PHY_RESET_GPIO              GPIO_TO_PIN(2, 18)
 121 #define MAXTOUCH_RESET_GPIO             GPIO_TO_PIN(3, 18)
 122 #define DISPLAY_RESET_GPIO              GPIO_TO_PIN(3, 19)
 123
 124 #define REQUEST_AND_PULSE_RESET(N) \
 125                 request_and_pulse_reset(N, #N);
 126
 127 static void spl_siemens_board_init(void)
 128 {
 129         REQUEST_AND_PULSE_RESET(ETH_PHY_RESET_GPIO);
 130         REQUEST_AND_PULSE_RESET(MAXTOUCH_RESET_GPIO);
 131         REQUEST_AND_PULSE_RESET(DISPLAY_RESET_GPIO);
 132 }
 133 #endif /* if def CONFIG_SPL_BUILD */
 134
 135 #if defined(CONFIG_DRIVER_TI_CPSW)
 136 static void cpsw_control(int enabled)
 137 {
 138         /* VTP can be added here */
 139
 140         return;
 141 }
 142
 143 static struct cpsw_slave_data cpsw_slaves[] = {
 144         {
 145                 .slave_reg_ofs  = 0x208,
 146                 .sliver_reg_ofs = 0xd80,
 147                 .phy_addr       = 1,
 148                 .phy_if         = PHY_INTERFACE_MODE_RMII,
 149         },
 150         {
 151                 .slave_reg_ofs  = 0x308,
 152                 .sliver_reg_ofs = 0xdc0,
 153                 .phy_addr       = 0,
 154                 .phy_if         = PHY_INTERFACE_MODE_RMII,
 155         },
 156 };
 157
 158 static struct cpsw_platform_data cpsw_data = {
 159         .mdio_base              = CPSW_MDIO_BASE,
 160         .cpsw_base              = CPSW_BASE,
 161         .mdio_div               = 0xff,
 162         .channels               = 8,
 163         .cpdma_reg_ofs          = 0x800,
 164         .slaves                 = 1,
 165         .slave_data             = cpsw_slaves,
 166         .ale_reg_ofs            = 0xd00,
 167         .ale_entries            = 1024,
 168         .host_port_reg_ofs      = 0x108,
 169         .hw_stats_reg_ofs       = 0x900,
 170         .bd_ram_ofs             = 0x2000,
 171         .mac_control            = (1 << 5),
 172         .control                = cpsw_control,
 173         .host_port_num          = 0,
 174         .version                = CPSW_CTRL_VERSION_2,
 175 };
 176
 177 #if defined(CONFIG_DRIVER_TI_CPSW) || \
 178         (defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET))
 179 int board_eth_init(struct bd_info *bis)
 180 {
 181         struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 182         int n = 0;
 183         int rv;
 184
 185 #ifndef CONFIG_SPL_BUILD
 186         factoryset_env_set();
 187 #endif
 188
 189         /* Set rgmii mode and enable rmii clock to be sourced from chip */
 190         writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
 191
 192         rv = cpsw_register(&cpsw_data);
 193         if (rv < 0)
 194                 printf("Error %d registering CPSW switch\n", rv);
 195         else
 196                 n += rv;
 197         return n;
 198 }
 199 #endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
 200 #endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
 201
 202 #if defined(CONFIG_HW_WATCHDOG)
 203 static bool hw_watchdog_init_done;
 204 static int  hw_watchdog_trigger_level;
 205
 206 void hw_watchdog_reset(void)
 207 {
 208         if (!hw_watchdog_init_done)
 209                 return;
 210
 211         hw_watchdog_trigger_level = hw_watchdog_trigger_level ? 0 : 1;
 212         gpio_set_value(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
 213 }
 214
 215 void hw_watchdog_init(void)
 216 {
 217         gpio_request(WATCHDOG_TRIGGER_GPIO, "watchdog_trigger");
 218         gpio_direction_output(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
 219
 220         hw_watchdog_reset();
 221
 222         hw_watchdog_init_done = 1;
 223 }
 224 #endif /* defined(CONFIG_HW_WATCHDOG) */
 225
 226 #ifdef CONFIG_BOARD_LATE_INIT
 227 int board_late_init(void)
 228 {
 229         int ret;
 230         char tmp[2 * MAX_STRING_LENGTH + 2];
 231
 232         omap_nand_switch_ecc(1, 8);
 233
 234         if (factory_dat.asn[0] != 0)
 235                 sprintf(tmp, "%s_%s", factory_dat.asn,
 236                         factory_dat.comp_version);
 237         else
 238                 strcpy(tmp, "QMX7.E38_4.0");
 239
 240         ret = env_set("boardid", tmp);
 241         if (ret)
 242                 printf("error setting board id\n");
 243
 244         return 0;
 245 }
 246 #endif
 247
 248 #include "../common/board.c"