board/compulab/cm_t3517/cm_t3517.c

   1 /*
   2  * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
   3  *
   4  * Authors: Igor Grinberg <grinberg@compulab.co.il>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <status_led.h>
  11 #include <usb.h>
  12 #include <mmc.h>
  13 #include <linux/compiler.h>
  14 #include <linux/usb/musb.h>
  15
  16 #include <asm/io.h>
  17 #include <asm/arch/mem.h>
  18 #include <asm/arch/am35x_def.h>
  19 #include <asm/arch/mmc_host_def.h>
  20 #include <asm/arch/sys_proto.h>
  21 #include <asm/arch/musb.h>
  22 #include <asm/omap_musb.h>
  23 #include <asm/ehci-omap.h>
  24
  25 #include "../common/common.h"
  26
  27 DECLARE_GLOBAL_DATA_PTR;
  28
  29 const omap3_sysinfo sysinfo = {
  30         DDR_DISCRETE,
  31         "CM-T3517 board",
  32         "NAND 128/512M",
  33 };
  34
  35 #ifdef CONFIG_USB_MUSB_AM35X
  36 static struct musb_hdrc_config cm_t3517_musb_config = {
  37         .multipoint     = 1,
  38         .dyn_fifo       = 1,
  39         .num_eps        = 16,
  40         .ram_bits       = 12,
  41 };
  42
  43 static struct omap_musb_board_data cm_t3517_musb_board_data = {
  44         .set_phy_power          = am35x_musb_phy_power,
  45         .clear_irq              = am35x_musb_clear_irq,
  46         .reset                  = am35x_musb_reset,
  47 };
  48
  49 static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
  50 #if defined(CONFIG_MUSB_HOST)
  51         .mode           = MUSB_HOST,
  52 #elif defined(CONFIG_MUSB_GADGET)
  53         .mode           = MUSB_PERIPHERAL,
  54 #else
  55 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET"
  56 #endif
  57         .config         = &cm_t3517_musb_config,
  58         .power          = 250,
  59         .platform_ops   = &am35x_ops,
  60         .board_data     = &cm_t3517_musb_board_data,
  61 };
  62
  63 static void cm_t3517_musb_init(void)
  64 {
  65         /*
  66          * Set up USB clock/mode in the DEVCONF2 register.
  67          * USB2.0 PHY reference clock is 13 MHz
  68          */
  69         clrsetbits_le32(&am35x_scm_general_regs->devconf2,
  70                         CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
  71                         CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
  72                         CONF2_VBDTCTEN | CONF2_DATPOL);
  73
  74         if (musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
  75                           (void *)AM35XX_IPSS_USBOTGSS_BASE))
  76                 printf("Failed initializing AM35x MUSB!\n");
  77 }
  78 #else
  79 static inline void am3517_evm_musb_init(void) {}
  80 #endif
  81
  82 int board_init(void)
  83 {
  84         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  85
  86         /* boot param addr */
  87         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  88
  89 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
  90         status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
  91 #endif
  92
  93         cm_t3517_musb_init();
  94
  95         return 0;
  96 }
  97
  98 int misc_init_r(void)
  99 {
 100         cl_print_pcb_info();
 101         dieid_num_r();
 102
 103         return 0;
 104 }
 105
 106 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
 107 #define SB_T35_CD_GPIO 144
 108 #define SB_T35_WP_GPIO 59
 109
 110 int board_mmc_init(bd_t *bis)
 111 {
 112         return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
 113 }
 114 #endif
 115
 116 #ifdef CONFIG_USB_EHCI_OMAP
 117 static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
 118         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 119         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 120         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 121 };
 122
 123 #define CM_T3517_USB_HUB_RESET_GPIO     152
 124 #define SB_T35_USB_HUB_RESET_GPIO       98
 125
 126 int ehci_hcd_init(int index, enum usb_init_type init,
 127                         struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 128 {
 129         cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
 130         cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
 131
 132         return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
 133 }
 134
 135 int ehci_hcd_stop(void)
 136 {
 137         cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
 138         cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
 139
 140         return omap_ehci_hcd_stop();
 141 }
 142 #endif /* CONFIG_USB_EHCI_OMAP */