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 #ifdef CONFIG_USB_EHCI
  18 #include <usb.h>
  19 #include <asm/gpio.h>
  20 #include <asm/arch/clock.h>
  21 #include <asm/arch/ehci.h>
  22 #include <asm/ehci-omap.h>
  23
  24 #define DIE_ID_REG_BASE     (OMAP54XX_L4_CORE_BASE + 0x2000)
  25 #define DIE_ID_REG_OFFSET       0x200
  26
  27 #endif
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 const struct omap_sysinfo sysinfo = {
  32         "Board: OMAP5432 uEVM\n"
  33 };
  34
  35 /**
  36  * @brief tca642x_init - uEVM default values for the GPIO expander
  37  * input reg, output reg, polarity reg, configuration reg
  38  */
  39 struct tca642x_bank_info tca642x_init[] = {
  40         { .input_reg = 0x00,
  41           .output_reg = 0x04,
  42           .polarity_reg = 0x00,
  43           .configuration_reg = 0x80 },
  44         { .input_reg = 0x00,
  45           .output_reg = 0x00,
  46           .polarity_reg = 0x00,
  47           .configuration_reg = 0xff },
  48         { .input_reg = 0x00,
  49           .output_reg = 0x00,
  50           .polarity_reg = 0x00,
  51           .configuration_reg = 0x40 },
  52 };
  53
  54 /**
  55  * @brief board_init
  56  *
  57  * @return 0
  58  */
  59 int board_init(void)
  60 {
  61         gpmc_init();
  62         gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
  63         gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
  64
  65         tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);
  66
  67         return 0;
  68 }
  69
  70 int board_eth_init(bd_t *bis)
  71 {
  72         return 0;
  73 }
  74
  75 /**
  76  * @brief misc_init_r - Configure EVM board specific configurations
  77  * such as power configurations, ethernet initialization as phase2 of
  78  * boot sequence
  79  *
  80  * @return 0
  81  */
  82 int misc_init_r(void)
  83 {
  84 #ifdef CONFIG_PALMAS_POWER
  85         palmas_init_settings();
  86 #endif
  87         return 0;
  88 }
  89
  90 void set_muxconf_regs_essential(void)
  91 {
  92         do_set_mux((*ctrl)->control_padconf_core_base,
  93                    core_padconf_array_essential,
  94                    sizeof(core_padconf_array_essential) /
  95                    sizeof(struct pad_conf_entry));
  96
  97         do_set_mux((*ctrl)->control_padconf_wkup_base,
  98                    wkup_padconf_array_essential,
  99                    sizeof(wkup_padconf_array_essential) /
 100                    sizeof(struct pad_conf_entry));
 101 }
 102
 103 void set_muxconf_regs_non_essential(void)
 104 {
 105         do_set_mux((*ctrl)->control_padconf_core_base,
 106                    core_padconf_array_non_essential,
 107                    sizeof(core_padconf_array_non_essential) /
 108                    sizeof(struct pad_conf_entry));
 109
 110         do_set_mux((*ctrl)->control_padconf_wkup_base,
 111                    wkup_padconf_array_non_essential,
 112                    sizeof(wkup_padconf_array_non_essential) /
 113                    sizeof(struct pad_conf_entry));
 114 }
 115
 116 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
 117 int board_mmc_init(bd_t *bis)
 118 {
 119         omap_mmc_init(0, 0, 0, -1, -1);
 120         omap_mmc_init(1, 0, 0, -1, -1);
 121         return 0;
 122 }
 123 #endif
 124
 125 #ifdef CONFIG_USB_EHCI
 126 static struct omap_usbhs_board_data usbhs_bdata = {
 127         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 128         .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
 129         .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
 130 };
 131
 132 static void enable_host_clocks(void)
 133 {
 134         int hs_clk_ctrl_val = (OPTFCLKEN_HSIC60M_P3_CLK |
 135                                 OPTFCLKEN_HSIC480M_P3_CLK |
 136                                 OPTFCLKEN_HSIC60M_P2_CLK |
 137                                 OPTFCLKEN_HSIC480M_P2_CLK |
 138                                 OPTFCLKEN_UTMI_P3_CLK | OPTFCLKEN_UTMI_P2_CLK);
 139
 140         /* Enable port 2 and 3 clocks*/
 141         setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, hs_clk_ctrl_val);
 142
 143         /* Enable port 2 and 3 usb host ports tll clocks*/
 144         setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl,
 145                         (OPTFCLKEN_USB_CH1_CLK_ENABLE | OPTFCLKEN_USB_CH2_CLK_ENABLE));
 146 }
 147
 148 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 149 {
 150         int ret;
 151         int auxclk;
 152         int reg;
 153         uint8_t device_mac[6];
 154
 155         enable_host_clocks();
 156
 157         if (!getenv("usbethaddr")) {
 158                 reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
 159
 160                 /*
 161                  * create a fake MAC address from the processor ID code.
 162                  * first byte is 0x02 to signify locally administered.
 163                  */
 164                 device_mac[0] = 0x02;
 165                 device_mac[1] = readl(reg + 0x10) & 0xff;
 166                 device_mac[2] = readl(reg + 0xC) & 0xff;
 167                 device_mac[3] = readl(reg + 0x8) & 0xff;
 168                 device_mac[4] = readl(reg) & 0xff;
 169                 device_mac[5] = (readl(reg) >> 8) & 0xff;
 170
 171                 eth_setenv_enetaddr("usbethaddr", device_mac);
 172         }
 173
 174         auxclk = readl((*prcm)->scrm_auxclk1);
 175         /* Request auxilary clock */
 176         auxclk |= AUXCLK_ENABLE_MASK;
 177         writel(auxclk, (*prcm)->scrm_auxclk1);
 178
 179         ret = omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor);
 180         if (ret < 0) {
 181                 puts("Failed to initialize ehci\n");
 182                 return ret;
 183         }
 184
 185         return 0;
 186 }
 187
 188 int ehci_hcd_stop(void)
 189 {
 190         int ret;
 191
 192         ret = omap_ehci_hcd_stop();
 193         return ret;
 194 }
 195
 196 void usb_hub_reset_devices(int port)
 197 {
 198         /* The LAN9730 needs to be reset after the port power has been set. */
 199         if (port == 3) {
 200                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
 201                 udelay(10);
 202                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
 203         }
 204 }
 205 #endif