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