text: // SPDX-License-Identifier: GPL-2.0+
  /*
   * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
   *
   * Authors: Igor Grinberg <grinberg@compulab.co.il>
   */
  
  #include <common.h>
  #include <environment.h>
  #include <status_led.h>
  #include <net.h>
  #include <netdev.h>
  #include <usb.h>
  #include <mmc.h>
  #include <linux/compiler.h>
  #include <linux/usb/musb.h>
  
  #include <asm/io.h>
  #include <asm/arch/mem.h>
  #include <asm/arch/am35x_def.h>
  #include <asm/arch/mmc_host_def.h>
  #include <asm/arch/sys_proto.h>
  #include <asm/arch/musb.h>
  #include <asm/omap_musb.h>
  #include <asm/ehci-omap.h>
  
  #include "../common/common.h"
  #include "../common/eeprom.h"
  
  DECLARE_GLOBAL_DATA_PTR;
  
  const omap3_sysinfo sysinfo = {
  	DDR_DISCRETE,
  	"CM-T3517 board",
  	"NAND 128/512M",
  };
  
  #ifdef CONFIG_USB_MUSB_AM35X
  static struct musb_hdrc_config cm_t3517_musb_config = {
  	.multipoint     = 1,
  	.dyn_fifo       = 1,
  	.num_eps        = 16,
  	.ram_bits       = 12,
  };
  
  static struct omap_musb_board_data cm_t3517_musb_board_data = {
  	.set_phy_power		= am35x_musb_phy_power,
  	.clear_irq		= am35x_musb_clear_irq,
  	.reset			= am35x_musb_reset,
  };
  
  static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
  #if defined(CONFIG_USB_MUSB_HOST)
  	.mode           = MUSB_HOST,
  #elif defined(CONFIG_USB_MUSB_GADGET)
  	.mode		= MUSB_PERIPHERAL,
  #else
  #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
  #endif
  	.config         = &cm_t3517_musb_config,
  	.power          = 250,
  	.platform_ops	= &am35x_ops,
  	.board_data	= &cm_t3517_musb_board_data,
  };
  
  static void cm_t3517_musb_init(void)
  {
  	/*
  	 * Set up USB clock/mode in the DEVCONF2 register.
  	 * USB2.0 PHY reference clock is 13 MHz
  	 */
  	clrsetbits_le32(&am35x_scm_general_regs->devconf2,
  			CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
  			CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
  			CONF2_VBDTCTEN | CONF2_DATPOL);
  
  	if (!musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
  			   (void *)AM35XX_IPSS_USBOTGSS_BASE))
  		printf("Failed initializing AM35x MUSB!\n");
  }
  #else
  static inline void am3517_evm_musb_init(void) {}
  #endif
  
  int board_init(void)
  {
  	gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  
  	/* boot param addr */
  	gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  
  #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
  	status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
  #endif
  
  	cm_t3517_musb_init();
  
  	return 0;
  }
  
  /*
   * Routine: get_board_rev
   * Description: read system revision
   */
  u32 get_board_rev(void)
  {
  	return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
  };
  
  int misc_init_r(void)
  {
  	cl_print_pcb_info();
  	omap_die_id_display();
  
  	return 0;
  }
  
  #if defined(CONFIG_MMC)
  #define SB_T35_CD_GPIO 144
  #define SB_T35_WP_GPIO 59
  
  int board_mmc_init(bd_t *bis)
  {
  	return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
  }
  #endif
  
  #ifdef CONFIG_DRIVER_TI_EMAC
  #define CONTROL_EFUSE_EMAC_LSB  0x48002380
  #define CONTROL_EFUSE_EMAC_MSB  0x48002384
  
  static int am3517_get_efuse_enetaddr(u8 *enetaddr)
  {
  	u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
  	u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
  
  	enetaddr[0] = (u8)((msb >> 16) & 0xff);
  	enetaddr[1] = (u8)((msb >> 8)  & 0xff);
  	enetaddr[2] = (u8)(msb & 0xff);
  	enetaddr[3] = (u8)((lsb >> 16) & 0xff);
  	enetaddr[4] = (u8)((lsb >> 8)  & 0xff);
  	enetaddr[5] = (u8)(lsb & 0xff);
  
  	return is_valid_ethaddr(enetaddr);
  }
  
  static inline int cm_t3517_init_emac(bd_t *bis)
  {
  	int ret = cpu_eth_init(bis);
  
  	if (ret > 0)
  		return ret;
  
  	printf("Failed initializing EMAC! ");
  	return 0;
  }
  #else /* !CONFIG_DRIVER_TI_EMAC */
  static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
  static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
  #endif /* CONFIG_DRIVER_TI_EMAC */
  
  /*
   * Routine: handle_mac_address
   * Description: prepare MAC address for on-board Ethernet.
   */
  static int cm_t3517_handle_mac_address(void)
  {
  	unsigned char enetaddr[6];
  	int ret;
  
  	ret = eth_env_get_enetaddr("ethaddr", enetaddr);
  	if (ret)
  		return 0;
  
  	ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
  	if (ret) {
  		ret = am3517_get_efuse_enetaddr(enetaddr);
  		if (ret)
  			return ret;
  	}
  
  	if (!is_valid_ethaddr(enetaddr))
  		return -1;
  
  	return eth_env_set_enetaddr("ethaddr", enetaddr);
  }
  
  #define SB_T35_ETH_RST_GPIO 164
  
  /*
   * Routine: board_eth_init
   * Description: initialize module and base-board Ethernet chips
   */
  int board_eth_init(bd_t *bis)
  {
  	int rc = 0, rc1 = 0;
  
  	rc1 = cm_t3517_handle_mac_address();
  	if (rc1)
  		printf("No MAC address found! ");
  
  	rc1 = cm_t3517_init_emac(bis);
  	if (rc1 > 0)
  		rc++;
  
  	rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
  				    NULL, SB_T35_ETH_RST_GPIO);
  	if (rc1 > 0)
  		rc++;
  
  	return rc;
  }
  
  #ifdef CONFIG_USB_EHCI_OMAP
  static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
  	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
  	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  };
  
  #define CM_T3517_USB_HUB_RESET_GPIO	152
  #define SB_T35_USB_HUB_RESET_GPIO	98
  
  int ehci_hcd_init(int index, enum usb_init_type init,
  			struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  {
  	cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
  	cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
  
  	return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
  }
  
  int ehci_hcd_stop(void)
  {
  	cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
  	cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
  
  	return omap_ehci_hcd_stop();
  }
  #endif /* CONFIG_USB_EHCI_OMAP */
  