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/sys_proto.h>
  12 #include <asm/arch/mmc_host_def.h>
  13 #include <tca642x.h>
  14
  15 #include "mux_data.h"
  16
  17 #if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
  18 #include <sata.h>
  19 #include <usb.h>
  20 #include <asm/gpio.h>
  21 #include <asm/arch/clock.h>
  22 #include <asm/arch/ehci.h>
  23 #include <asm/ehci-omap.h>
  24 #include <asm/arch/sata.h>
  25
  26 #define DIE_ID_REG_BASE     (OMAP54XX_L4_CORE_BASE + 0x2000)
  27 #define DIE_ID_REG_OFFSET       0x200
  28
  29 #endif
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 const struct omap_sysinfo sysinfo = {
  34         "Board: OMAP5432 uEVM\n"
  35 };
  36
  37 /**
  38  * @brief tca642x_init - uEVM default values for the GPIO expander
  39  * input reg, output reg, polarity reg, configuration reg
  40  */
  41 struct tca642x_bank_info tca642x_init[] = {
  42         { .input_reg = 0x00,
  43           .output_reg = 0x04,
  44           .polarity_reg = 0x00,
  45           .configuration_reg = 0x80 },
  46         { .input_reg = 0x00,
  47           .output_reg = 0x00,
  48           .polarity_reg = 0x00,
  49           .configuration_reg = 0xff },
  50         { .input_reg = 0x00,
  51           .output_reg = 0x00,
  52           .polarity_reg = 0x00,
  53           .configuration_reg = 0x40 },
  54 };
  55
  56 /**
  57  * @brief board_init
  58  *
  59  * @return 0
  60  */
  61 int board_init(void)
  62 {
  63         gpmc_init();
  64         gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
  65         gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
  66
  67         tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);
  68
  69         return 0;
  70 }
  71
  72 int board_eth_init(bd_t *bis)
  73 {
  74         return 0;
  75 }
  76
  77 #if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
  78 static void enable_host_clocks(void)
  79 {
  80         int auxclk;
  81         int hs_clk_ctrl_val = (OPTFCLKEN_HSIC60M_P3_CLK |
  82                                 OPTFCLKEN_HSIC480M_P3_CLK |
  83                                 OPTFCLKEN_HSIC60M_P2_CLK |
  84                                 OPTFCLKEN_HSIC480M_P2_CLK |
  85                                 OPTFCLKEN_UTMI_P3_CLK | OPTFCLKEN_UTMI_P2_CLK);
  86
  87         /* Enable port 2 and 3 clocks*/
  88         setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, hs_clk_ctrl_val);
  89
  90         /* Enable port 2 and 3 usb host ports tll clocks*/
  91         setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl,
  92                         (OPTFCLKEN_USB_CH1_CLK_ENABLE | OPTFCLKEN_USB_CH2_CLK_ENABLE));
  93 #ifdef CONFIG_USB_XHCI_OMAP
  94         /* Enable the USB OTG Super speed clocks */
  95         setbits_le32((*prcm)->cm_l3init_usb_otg_ss_clkctrl,
  96                         (OPTFCLKEN_REFCLK960M | OTG_SS_CLKCTRL_MODULEMODE_HW));
  97 #endif
  98
  99         auxclk = readl((*prcm)->scrm_auxclk1);
 100         /* Request auxilary clock */
 101         auxclk |= AUXCLK_ENABLE_MASK;
 102         writel(auxclk, (*prcm)->scrm_auxclk1);
 103 }
 104 #endif
 105
 106 /**
 107  * @brief misc_init_r - Configure EVM board specific configurations
 108  * such as power configurations, ethernet initialization as phase2 of
 109  * boot sequence
 110  *
 111  * @return 0
 112  */
 113 int misc_init_r(void)
 114 {
 115         int reg;
 116         u32 id[4];
 117
 118 #ifdef CONFIG_PALMAS_POWER
 119         palmas_init_settings();
 120 #endif
 121
 122         reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
 123
 124         id[0] = readl(reg);
 125         id[1] = readl(reg + 0x8);
 126         id[2] = readl(reg + 0xC);
 127         id[3] = readl(reg + 0x10);
 128         usb_fake_mac_from_die_id(id);
 129
 130         return 0;
 131 }
 132
 133 void set_muxconf_regs_essential(void)
 134 {
 135         do_set_mux((*ctrl)->control_padconf_core_base,
 136                    core_padconf_array_essential,
 137                    sizeof(core_padconf_array_essential) /
 138                    sizeof(struct pad_conf_entry));
 139
 140         do_set_mux((*ctrl)->control_padconf_wkup_base,
 141                    wkup_padconf_array_essential,
 142                    sizeof(wkup_padconf_array_essential) /
 143                    sizeof(struct pad_conf_entry));
 144 }
 145
 146 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
 147 int board_mmc_init(bd_t *bis)
 148 {
 149         omap_mmc_init(0, 0, 0, -1, -1);
 150         omap_mmc_init(1, 0, 0, -1, -1);
 151         return 0;
 152 }
 153 #endif
 154
 155 #ifdef CONFIG_USB_EHCI
 156 static struct omap_usbhs_board_data usbhs_bdata = {
 157         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 158         .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
 159         .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
 160 };
 161
 162 int ehci_hcd_init(int index, enum usb_init_type init,
 163                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 164 {
 165         int ret;
 166
 167         enable_host_clocks();
 168
 169         ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 170         if (ret < 0) {
 171                 puts("Failed to initialize ehci\n");
 172                 return ret;
 173         }
 174
 175         return 0;
 176 }
 177
 178 int ehci_hcd_stop(void)
 179 {
 180         int ret;
 181
 182         ret = omap_ehci_hcd_stop();
 183         return ret;
 184 }
 185
 186 void usb_hub_reset_devices(int port)
 187 {
 188         /* The LAN9730 needs to be reset after the port power has been set. */
 189         if (port == 3) {
 190                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
 191                 udelay(10);
 192                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
 193         }
 194 }
 195 #endif
 196
 197 #ifdef CONFIG_USB_XHCI_OMAP
 198 /**
 199  * @brief board_usb_init - Configure EVM board specific configurations
 200  * for the LDO's and clocks for the USB blocks.
 201  *
 202  * @return 0
 203  */
 204 int board_usb_init(int index, enum usb_init_type init)
 205 {
 206         int ret;
 207 #ifdef CONFIG_PALMAS_USB_SS_PWR
 208         ret = palmas_enable_ss_ldo();
 209 #endif
 210
 211         enable_host_clocks();
 212
 213         return 0;
 214 }
 215 #endif