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_late_init(void)
  73 {
  74         init_sata(0);
  75         return 0;
  76 }
  77
  78 int board_eth_init(bd_t *bis)
  79 {
  80         return 0;
  81 }
  82
  83 #if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
  84 static void enable_host_clocks(void)
  85 {
  86         int auxclk;
  87         int hs_clk_ctrl_val = (OPTFCLKEN_HSIC60M_P3_CLK |
  88                                 OPTFCLKEN_HSIC480M_P3_CLK |
  89                                 OPTFCLKEN_HSIC60M_P2_CLK |
  90                                 OPTFCLKEN_HSIC480M_P2_CLK |
  91                                 OPTFCLKEN_UTMI_P3_CLK | OPTFCLKEN_UTMI_P2_CLK);
  92
  93         /* Enable port 2 and 3 clocks*/
  94         setbits_le32((*prcm)->cm_l3init_hsusbhost_clkctrl, hs_clk_ctrl_val);
  95
  96         /* Enable port 2 and 3 usb host ports tll clocks*/
  97         setbits_le32((*prcm)->cm_l3init_hsusbtll_clkctrl,
  98                         (OPTFCLKEN_USB_CH1_CLK_ENABLE | OPTFCLKEN_USB_CH2_CLK_ENABLE));
  99 #ifdef CONFIG_USB_XHCI_OMAP
 100         /* Enable the USB OTG Super speed clocks */
 101         setbits_le32((*prcm)->cm_l3init_usb_otg_ss_clkctrl,
 102                         (OPTFCLKEN_REFCLK960M | OTG_SS_CLKCTRL_MODULEMODE_HW));
 103 #endif
 104
 105         auxclk = readl((*prcm)->scrm_auxclk1);
 106         /* Request auxilary clock */
 107         auxclk |= AUXCLK_ENABLE_MASK;
 108         writel(auxclk, (*prcm)->scrm_auxclk1);
 109 }
 110 #endif
 111
 112 /**
 113  * @brief misc_init_r - Configure EVM board specific configurations
 114  * such as power configurations, ethernet initialization as phase2 of
 115  * boot sequence
 116  *
 117  * @return 0
 118  */
 119 int misc_init_r(void)
 120 {
 121         int reg;
 122         u32 id[4];
 123
 124 #ifdef CONFIG_PALMAS_POWER
 125         palmas_init_settings();
 126 #endif
 127
 128         reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
 129
 130         id[0] = readl(reg);
 131         id[1] = readl(reg + 0x8);
 132         id[2] = readl(reg + 0xC);
 133         id[3] = readl(reg + 0x10);
 134         usb_fake_mac_from_die_id(id);
 135
 136         return 0;
 137 }
 138
 139 void set_muxconf_regs_essential(void)
 140 {
 141         do_set_mux((*ctrl)->control_padconf_core_base,
 142                    core_padconf_array_essential,
 143                    sizeof(core_padconf_array_essential) /
 144                    sizeof(struct pad_conf_entry));
 145
 146         do_set_mux((*ctrl)->control_padconf_wkup_base,
 147                    wkup_padconf_array_essential,
 148                    sizeof(wkup_padconf_array_essential) /
 149                    sizeof(struct pad_conf_entry));
 150 }
 151
 152 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
 153 int board_mmc_init(bd_t *bis)
 154 {
 155         omap_mmc_init(0, 0, 0, -1, -1);
 156         omap_mmc_init(1, 0, 0, -1, -1);
 157         return 0;
 158 }
 159 #endif
 160
 161 #ifdef CONFIG_USB_EHCI
 162 static struct omap_usbhs_board_data usbhs_bdata = {
 163         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 164         .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
 165         .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
 166 };
 167
 168 int ehci_hcd_init(int index, enum usb_init_type init,
 169                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 170 {
 171         int ret;
 172
 173         enable_host_clocks();
 174
 175         ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 176         if (ret < 0) {
 177                 puts("Failed to initialize ehci\n");
 178                 return ret;
 179         }
 180
 181         return 0;
 182 }
 183
 184 int ehci_hcd_stop(void)
 185 {
 186         int ret;
 187
 188         ret = omap_ehci_hcd_stop();
 189         return ret;
 190 }
 191
 192 void usb_hub_reset_devices(int port)
 193 {
 194         /* The LAN9730 needs to be reset after the port power has been set. */
 195         if (port == 3) {
 196                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
 197                 udelay(10);
 198                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
 199         }
 200 }
 201 #endif
 202
 203 #ifdef CONFIG_USB_XHCI_OMAP
 204 /**
 205  * @brief board_usb_init - Configure EVM board specific configurations
 206  * for the LDO's and clocks for the USB blocks.
 207  *
 208  * @return 0
 209  */
 210 int board_usb_init(int index, enum usb_init_type init)
 211 {
 212         int ret;
 213 #ifdef CONFIG_PALMAS_USB_SS_PWR
 214         ret = palmas_enable_ss_ldo();
 215 #endif
 216
 217         enable_host_clocks();
 218
 219         return 0;
 220 }
 221 #endif