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 <net.h>
  12 #include <netdev.h>
  13 #include <usb.h>
  14 #include <mmc.h>
  15 #include <linux/compiler.h>
  16 #include <linux/usb/musb.h>
  17
  18 #include <asm/io.h>
  19 #include <asm/arch/mem.h>
  20 #include <asm/arch/am35x_def.h>
  21 #include <asm/arch/mmc_host_def.h>
  22 #include <asm/arch/sys_proto.h>
  23 #include <asm/arch/musb.h>
  24 #include <asm/omap_musb.h>
  25 #include <asm/ehci-omap.h>
  26
  27 #include "../common/common.h"
  28 #include "../common/eeprom.h"
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 const omap3_sysinfo sysinfo = {
  33         DDR_DISCRETE,
  34         "CM-T3517 board",
  35         "NAND 128/512M",
  36 };
  37
  38 #ifdef CONFIG_USB_MUSB_AM35X
  39 static struct musb_hdrc_config cm_t3517_musb_config = {
  40         .multipoint     = 1,
  41         .dyn_fifo       = 1,
  42         .num_eps        = 16,
  43         .ram_bits       = 12,
  44 };
  45
  46 static struct omap_musb_board_data cm_t3517_musb_board_data = {
  47         .set_phy_power          = am35x_musb_phy_power,
  48         .clear_irq              = am35x_musb_clear_irq,
  49         .reset                  = am35x_musb_reset,
  50 };
  51
  52 static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
  53 #if defined(CONFIG_MUSB_HOST)
  54         .mode           = MUSB_HOST,
  55 #elif defined(CONFIG_MUSB_GADGET)
  56         .mode           = MUSB_PERIPHERAL,
  57 #else
  58 #error "Please define either CONFIG_MUSB_HOST or CONFIG_MUSB_GADGET"
  59 #endif
  60         .config         = &cm_t3517_musb_config,
  61         .power          = 250,
  62         .platform_ops   = &am35x_ops,
  63         .board_data     = &cm_t3517_musb_board_data,
  64 };
  65
  66 static void cm_t3517_musb_init(void)
  67 {
  68         /*
  69          * Set up USB clock/mode in the DEVCONF2 register.
  70          * USB2.0 PHY reference clock is 13 MHz
  71          */
  72         clrsetbits_le32(&am35x_scm_general_regs->devconf2,
  73                         CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
  74                         CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
  75                         CONF2_VBDTCTEN | CONF2_DATPOL);
  76
  77         if (musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
  78                           (void *)AM35XX_IPSS_USBOTGSS_BASE))
  79                 printf("Failed initializing AM35x MUSB!\n");
  80 }
  81 #else
  82 static inline void am3517_evm_musb_init(void) {}
  83 #endif
  84
  85 int board_init(void)
  86 {
  87         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  88
  89         /* boot param addr */
  90         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  91
  92 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
  93         status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
  94 #endif
  95
  96         cm_t3517_musb_init();
  97
  98         return 0;
  99 }
 100
 101 int misc_init_r(void)
 102 {
 103         cl_print_pcb_info();
 104         dieid_num_r();
 105
 106         return 0;
 107 }
 108
 109 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
 110 #define SB_T35_CD_GPIO 144
 111 #define SB_T35_WP_GPIO 59
 112
 113 int board_mmc_init(bd_t *bis)
 114 {
 115         return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
 116 }
 117 #endif
 118
 119 #ifdef CONFIG_DRIVER_TI_EMAC
 120 #define CONTROL_EFUSE_EMAC_LSB  0x48002380
 121 #define CONTROL_EFUSE_EMAC_MSB  0x48002384
 122
 123 static int am3517_get_efuse_enetaddr(u8 *enetaddr)
 124 {
 125         u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
 126         u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
 127
 128         enetaddr[0] = (u8)((msb >> 16) & 0xff);
 129         enetaddr[1] = (u8)((msb >> 8)  & 0xff);
 130         enetaddr[2] = (u8)(msb & 0xff);
 131         enetaddr[3] = (u8)((lsb >> 16) & 0xff);
 132         enetaddr[4] = (u8)((lsb >> 8)  & 0xff);
 133         enetaddr[5] = (u8)(lsb & 0xff);
 134
 135         return is_valid_ether_addr(enetaddr);
 136 }
 137
 138 static inline int cm_t3517_init_emac(bd_t *bis)
 139 {
 140         int ret = cpu_eth_init(bis);
 141
 142         if (ret > 0)
 143                 return ret;
 144
 145         printf("Failed initializing EMAC! ");
 146         return 0;
 147 }
 148 #else /* !CONFIG_DRIVER_TI_EMAC */
 149 static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
 150 static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
 151 #endif /* CONFIG_DRIVER_TI_EMAC */
 152
 153 /*
 154  * Routine: handle_mac_address
 155  * Description: prepare MAC address for on-board Ethernet.
 156  */
 157 static int cm_t3517_handle_mac_address(void)
 158 {
 159         unsigned char enetaddr[6];
 160         int ret;
 161
 162         ret = eth_getenv_enetaddr("ethaddr", enetaddr);
 163         if (ret)
 164                 return 0;
 165
 166         ret = cl_eeprom_read_mac_addr(enetaddr);
 167         if (ret) {
 168                 ret = am3517_get_efuse_enetaddr(enetaddr);
 169                 if (ret)
 170                         return ret;
 171         }
 172
 173         if (!is_valid_ether_addr(enetaddr))
 174                 return -1;
 175
 176         return eth_setenv_enetaddr("ethaddr", enetaddr);
 177 }
 178
 179 #define SB_T35_ETH_RST_GPIO 164
 180
 181 /*
 182  * Routine: board_eth_init
 183  * Description: initialize module and base-board Ethernet chips
 184  */
 185 int board_eth_init(bd_t *bis)
 186 {
 187         int rc = 0, rc1 = 0;
 188
 189         rc1 = cm_t3517_handle_mac_address();
 190         if (rc1)
 191                 printf("No MAC address found! ");
 192
 193         rc1 = cm_t3517_init_emac(bis);
 194         if (rc1 > 0)
 195                 rc++;
 196
 197         rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
 198                                     NULL, SB_T35_ETH_RST_GPIO);
 199         if (rc1 > 0)
 200                 rc++;
 201
 202         return rc;
 203 }
 204
 205 #ifdef CONFIG_USB_EHCI_OMAP
 206 static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
 207         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 208         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 209         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 210 };
 211
 212 #define CM_T3517_USB_HUB_RESET_GPIO     152
 213 #define SB_T35_USB_HUB_RESET_GPIO       98
 214
 215 int ehci_hcd_init(int index, enum usb_init_type init,
 216                         struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 217 {
 218         cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
 219         cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
 220
 221         return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
 222 }
 223
 224 int ehci_hcd_stop(void)
 225 {
 226         cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
 227         cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
 228
 229         return omap_ehci_hcd_stop();
 230 }
 231 #endif /* CONFIG_USB_EHCI_OMAP */