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         uint8_t device_mac[6];
 123
 124 #ifdef CONFIG_PALMAS_POWER
 125         palmas_init_settings();
 126 #endif
 127
 128         if (!getenv("usbethaddr")) {
 129                 reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
 130
 131                 /*
 132                  * create a fake MAC address from the processor ID code.
 133                  * first byte is 0x02 to signify locally administered.
 134                  */
 135                 device_mac[0] = 0x02;
 136                 device_mac[1] = readl(reg + 0x10) & 0xff;
 137                 device_mac[2] = readl(reg + 0xC) & 0xff;
 138                 device_mac[3] = readl(reg + 0x8) & 0xff;
 139                 device_mac[4] = readl(reg) & 0xff;
 140                 device_mac[5] = (readl(reg) >> 8) & 0xff;
 141
 142                 eth_setenv_enetaddr("usbethaddr", device_mac);
 143         }
 144
 145         return 0;
 146 }
 147
 148 void set_muxconf_regs_essential(void)
 149 {
 150         do_set_mux((*ctrl)->control_padconf_core_base,
 151                    core_padconf_array_essential,
 152                    sizeof(core_padconf_array_essential) /
 153                    sizeof(struct pad_conf_entry));
 154
 155         do_set_mux((*ctrl)->control_padconf_wkup_base,
 156                    wkup_padconf_array_essential,
 157                    sizeof(wkup_padconf_array_essential) /
 158                    sizeof(struct pad_conf_entry));
 159 }
 160
 161 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
 162 int board_mmc_init(bd_t *bis)
 163 {
 164         omap_mmc_init(0, 0, 0, -1, -1);
 165         omap_mmc_init(1, 0, 0, -1, -1);
 166         return 0;
 167 }
 168 #endif
 169
 170 #ifdef CONFIG_USB_EHCI
 171 static struct omap_usbhs_board_data usbhs_bdata = {
 172         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
 173         .port_mode[1] = OMAP_EHCI_PORT_MODE_HSIC,
 174         .port_mode[2] = OMAP_EHCI_PORT_MODE_HSIC,
 175 };
 176
 177 int ehci_hcd_init(int index, enum usb_init_type init,
 178                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 179 {
 180         int ret;
 181
 182         enable_host_clocks();
 183
 184         ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
 185         if (ret < 0) {
 186                 puts("Failed to initialize ehci\n");
 187                 return ret;
 188         }
 189
 190         return 0;
 191 }
 192
 193 int ehci_hcd_stop(void)
 194 {
 195         int ret;
 196
 197         ret = omap_ehci_hcd_stop();
 198         return ret;
 199 }
 200
 201 void usb_hub_reset_devices(int port)
 202 {
 203         /* The LAN9730 needs to be reset after the port power has been set. */
 204         if (port == 3) {
 205                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 0);
 206                 udelay(10);
 207                 gpio_direction_output(CONFIG_OMAP_EHCI_PHY3_RESET_GPIO, 1);
 208         }
 209 }
 210 #endif
 211
 212 #ifdef CONFIG_USB_XHCI_OMAP
 213 /**
 214  * @brief board_usb_init - Configure EVM board specific configurations
 215  * for the LDO's and clocks for the USB blocks.
 216  *
 217  * @return 0
 218  */
 219 int board_usb_init(int index, enum usb_init_type init)
 220 {
 221         int ret;
 222 #ifdef CONFIG_PALMAS_USB_SS_PWR
 223         ret = palmas_enable_ss_ldo();
 224 #endif
 225
 226         enable_host_clocks();
 227
 228         return 0;
 229 }
 230 #endif