board/ti/omap5_uevm/evm.c

   1 /*
   2  * (C) Copyright 2010
   3  * Texas Instruments Incorporated, <www.ti.com>
   4  * Aneesh V       <aneesh@ti.com>
   5  * Steve Sakoman  <steve@sakoman.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9 #include <common.h>
  10 #include <palmas.h>
  11 #include <asm/arch/omap.h>
  12 #include <asm/arch/sys_proto.h>
  13 #include <asm/arch/mmc_host_def.h>
  14 #include <tca642x.h>
  15 #include <usb.h>
  16 #include <linux/usb/gadget.h>
  17 #include <dwc3-uboot.h>
  18 #include <dwc3-omap-uboot.h>
  19 #include <ti-usb-phy-uboot.h>
  20
  21 #include "mux_data.h"
  22
  23 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_XHCI_OMAP)
  24 #include <sata.h>
  25 #include <usb.h>
  26 #include <asm/gpio.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/arch/clock.h>
  29 #include <asm/arch/ehci.h>
  30 #include <asm/ehci-omap.h>
  31 #include <asm/arch/sata.h>
  32
  33 #define DIE_ID_REG_BASE     (OMAP54XX_L4_CORE_BASE + 0x2000)
  34 #define DIE_ID_REG_OFFSET       0x200
  35
  36 #endif
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 const struct omap_sysinfo sysinfo = {
  41         "Board: OMAP5432 uEVM\n"
  42 };
  43
  44 /**
  45  * @brief tca642x_init - uEVM default values for the GPIO expander
  46  * input reg, output reg, polarity reg, configuration reg
  47  */
  48 struct tca642x_bank_info tca642x_init[] = {
  49         { .input_reg = 0x00,
  50           .output_reg = 0x04,
  51           .polarity_reg = 0x00,
  52           .configuration_reg = 0x80 },
  53         { .input_reg = 0x00,
  54           .output_reg = 0x00,
  55           .polarity_reg = 0x00,
  56           .configuration_reg = 0xff },
  57         { .input_reg = 0x00,
  58           .output_reg = 0x00,
  59           .polarity_reg = 0x00,
  60           .configuration_reg = 0x40 },
  61 };
  62
  63 #ifdef CONFIG_USB_DWC3
  64 static struct dwc3_device usb_otg_ss = {
  65         .maximum_speed = USB_SPEED_SUPER,
  66         .base = OMAP5XX_USB_OTG_SS_BASE,
  67         .tx_fifo_resize = false,
  68         .index = 0,
  69 };
  70
  71 static struct dwc3_omap_device usb_otg_ss_glue = {
  72         .base = (void *)OMAP5XX_USB_OTG_SS_GLUE_BASE,
  73         .utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
  74         .index = 0,
  75 };
  76
  77 static struct ti_usb_phy_device usb_phy_device = {
  78         .pll_ctrl_base = (void *)OMAP5XX_USB3_PHY_PLL_CTRL,
  79         .usb2_phy_power = (void *)OMAP5XX_USB2_PHY_POWER,
  80         .usb3_phy_power = (void *)OMAP5XX_USB3_PHY_POWER,
  81         .index = 0,
  82 };
  83
  84 int board_usb_init(int index, enum usb_init_type init)
  85 {
  86         if (index) {
  87                 printf("Invalid Controller Index\n");
  88                 return -EINVAL;
  89         }
  90
  91         if (init == USB_INIT_DEVICE) {
  92                 usb_otg_ss.dr_mode = USB_DR_MODE_PERIPHERAL;
  93                 usb_otg_ss_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
  94         } else {
  95                 usb_otg_ss.dr_mode = USB_DR_MODE_HOST;
  96                 usb_otg_ss_glue.vbus_id_status = OMAP_DWC3_ID_GROUND;
  97         }
  98
  99         enable_usb_clocks(index);
 100         ti_usb_phy_uboot_init(&usb_phy_device);
 101         dwc3_omap_uboot_init(&usb_otg_ss_glue);
 102         dwc3_uboot_init(&usb_otg_ss);
 103
 104         return 0;
 105 }
 106
 107 int board_usb_cleanup(int index, enum usb_init_type init)
 108 {
 109         if (index) {
 110                 printf("Invalid Controller Index\n");
 111                 return -EINVAL;
 112         }
 113
 114         ti_usb_phy_uboot_exit(index);
 115         dwc3_uboot_exit(index);
 116         dwc3_omap_uboot_exit(index);
 117         disable_usb_clocks(index);
 118
 119         return 0;
 120 }
 121
 122 int usb_gadget_handle_interrupts(int index)
 123 {
 124         u32 status;
 125
 126         status = dwc3_omap_uboot_interrupt_status(index);
 127         if (status)
 128                 dwc3_uboot_handle_interrupt(index);
 129
 130         return 0;
 131 }
 132 #endif
 133
 134 /**
 135  * @brief board_init
 136  *
 137  * @return 0
 138  */
 139 int board_init(void)
 140 {
 141         gpmc_init();
 142         gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
 143         gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
 144
 145         tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);
 146
 147         return 0;
 148 }
 149
 150 int board_eth_init(bd_t *bis)
 151 {
 152         return 0;
 153 }
 154
 155 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_XHCI_OMAP)
 156 static void enable_host_clocks(void)
 157 {
 158         int auxclk;
 159         int hs_clk_ctrl_val = (OPTFCLKEN_HSIC60M_P3_CLK |
 160                                 OPTFCLKEN_HSIC480M_P3_CLK |
 161                                 OPTFCLKEN_HSIC60M_P2_CLK |
 162                                 OPTFCLKEN_HSIC480M_P2_CLK |
 163                                 OPTFCLKEN_UTMI_P3_CLK | OPTFCLKEN_UTMI_P2_CLK);
 164
 165         /* Enable port 2 and 3 clocks*/
 166         setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, hs_clk_ctrl_val);
 167
 168         /* Enable port 2 and 3 usb host ports tll clocks*/
 169         setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl,
 170                         (OPTFCLKEN_USB_CH1_CLK_ENABLE | OPTFCLKEN_USB_CH2_CLK_ENABLE));
 171 #ifdef CONFIG_USB_XHCI_OMAP
 172         /* Enable the USB OTG Super speed clocks */
 173         setbits_le32((*prcm)->cm_l3init_usb_otg_ss_clkctrl,
 174                         (OPTFCLKEN_REFCLK960M | OTG_SS_CLKCTRL_MODULEMODE_HW));
 175 #endif
 176
 177         auxclk = readl((*prcm)->scrm_auxclk1);
 178         /* Request auxilary clock */
 179         auxclk |= AUXCLK_ENABLE_MASK;
 180         writel(auxclk, (*prcm)->scrm_auxclk1);
 181 }
 182 #endif
 183
 184 /**
 185  * @brief misc_init_r - Configure EVM board specific configurations
 186  * such as power configurations, ethernet initialization as phase2 of
 187  * boot sequence
 188  *
 189  * @return 0
 190  */
 191 int misc_init_r(void)
 192 {
 193 #ifdef CONFIG_PALMAS_POWER
 194         palmas_init_settings();
 195 #endif
 196
 197         omap_die_id_usbethaddr();
 198
 199         return 0;
 200 }
 201
 202 void set_muxconf_regs(void)
 203 {
 204         do_set_mux((*ctrl)->control_padconf_core_base,
 205                    core_padconf_array_essential,
 206                    sizeof(core_padconf_array_essential) /
 207                    sizeof(struct pad_conf_entry));
 208
 209         do_set_mux((*ctrl)->control_padconf_wkup_base,
 210                    wkup_padconf_array_essential,
 211                    sizeof(wkup_padconf_array_essential) /
 212                    sizeof(struct pad_conf_entry));
 213 }
 214
 215 #if defined(CONFIG_MMC)
 216 int board_mmc_init(bd_t *bis)
 217 {
 218         omap_mmc_init(0, 0, 0, -1, -1);
 219         omap_mmc_init(1, 0, 0, -1, -1);
 220         return 0;
 221 }
 222 #endif
 223
 224 #ifdef CONFIG_USB_EHCI_HCD
 225 static struct omap_usbhs_board_data usbhs_bdata = {
 226         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 227         .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
 228         .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
 229 };
 230
 231 int ehci_hcd_init(int index, enum usb_init_type init,
 232                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 233 {
 234         int ret;
 235
 236         enable_host_clocks();
 237
 238         ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 239         if (ret < 0) {
 240                 puts("Failed to initialize ehci\n");
 241                 return ret;
 242         }
 243
 244         return 0;
 245 }
 246
 247 int ehci_hcd_stop(void)
 248 {
 249         return omap_ehci_hcd_stop();
 250 }
 251
 252 void usb_hub_reset_devices(int port)
 253 {
 254         /* The LAN9730 needs to be reset after the port power has been set. */
 255         if (port == 3) {
 256                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
 257                 udelay(10);
 258                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
 259         }
 260 }
 261 #endif
 262
 263 #ifdef CONFIG_USB_XHCI_OMAP
 264 /**
 265  * @brief board_usb_init - Configure EVM board specific configurations
 266  * for the LDO's and clocks for the USB blocks.
 267  *
 268  * @return 0
 269  */
 270 int board_usb_init(int index, enum usb_init_type init)
 271 {
 272         int ret;
 273 #ifdef CONFIG_PALMAS_USB_SS_PWR
 274         ret = palmas_enable_ss_ldo();
 275 #endif
 276
 277         enable_host_clocks();
 278
 279         return 0;
 280 }
 281 #endif