git.sur5r.net Git - u-boot/blob - 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 <environment.h>
  11 #include <status_led.h>
  12 #include <net.h>
  13 #include <netdev.h>
  14 #include <usb.h>
  15 #include <mmc.h>
  16 #include <linux/compiler.h>
  17 #include <linux/usb/musb.h>
  18
  19 #include <asm/io.h>
  20 #include <asm/arch/mem.h>
  21 #include <asm/arch/am35x_def.h>
  22 #include <asm/arch/mmc_host_def.h>
  23 #include <asm/arch/sys_proto.h>
  24 #include <asm/arch/musb.h>
  25 #include <asm/omap_musb.h>
  26 #include <asm/ehci-omap.h>
  27
  28 #include "../common/common.h"
  29 #include "../common/eeprom.h"
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32
  33 const omap3_sysinfo sysinfo = {
  34         DDR_DISCRETE,
  35         "CM-T3517 board",
  36         "NAND 128/512M",
  37 };
  38
  39 #ifdef CONFIG_USB_MUSB_AM35X
  40 static struct musb_hdrc_config cm_t3517_musb_config = {
  41         .multipoint     = 1,
  42         .dyn_fifo       = 1,
  43         .num_eps        = 16,
  44         .ram_bits       = 12,
  45 };
  46
  47 static struct omap_musb_board_data cm_t3517_musb_board_data = {
  48         .set_phy_power          = am35x_musb_phy_power,
  49         .clear_irq              = am35x_musb_clear_irq,
  50         .reset                  = am35x_musb_reset,
  51 };
  52
  53 static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
  54 #if defined(CONFIG_USB_MUSB_HOST)
  55         .mode           = MUSB_HOST,
  56 #elif defined(CONFIG_USB_MUSB_GADGET)
  57         .mode           = MUSB_PERIPHERAL,
  58 #else
  59 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
  60 #endif
  61         .config         = &cm_t3517_musb_config,
  62         .power          = 250,
  63         .platform_ops   = &am35x_ops,
  64         .board_data     = &cm_t3517_musb_board_data,
  65 };
  66
  67 static void cm_t3517_musb_init(void)
  68 {
  69         /*
  70          * Set up USB clock/mode in the DEVCONF2 register.
  71          * USB2.0 PHY reference clock is 13 MHz
  72          */
  73         clrsetbits_le32(&am35x_scm_general_regs->devconf2,
  74                         CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
  75                         CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
  76                         CONF2_VBDTCTEN | CONF2_DATPOL);
  77
  78         if (musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
  79                           (void *)AM35XX_IPSS_USBOTGSS_BASE))
  80                 printf("Failed initializing AM35x MUSB!\n");
  81 }
  82 #else
  83 static inline void am3517_evm_musb_init(void) {}
  84 #endif
  85
  86 int board_init(void)
  87 {
  88         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  89
  90         /* boot param addr */
  91         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  92
  93 #if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
  94         status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
  95 #endif
  96
  97         cm_t3517_musb_init();
  98
  99         return 0;
 100 }
 101
 102 /*
 103  * Routine: get_board_rev
 104  * Description: read system revision
 105  */
 106 u32 get_board_rev(void)
 107 {
 108         return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
 109 };
 110
 111 int misc_init_r(void)
 112 {
 113         cl_print_pcb_info();
 114         omap_die_id_display();
 115
 116         return 0;
 117 }
 118
 119 #if defined(CONFIG_MMC)
 120 #define SB_T35_CD_GPIO 144
 121 #define SB_T35_WP_GPIO 59
 122
 123 int board_mmc_init(bd_t *bis)
 124 {
 125         return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
 126 }
 127 #endif
 128
 129 #ifdef CONFIG_DRIVER_TI_EMAC
 130 #define CONTROL_EFUSE_EMAC_LSB  0x48002380
 131 #define CONTROL_EFUSE_EMAC_MSB  0x48002384
 132
 133 static int am3517_get_efuse_enetaddr(u8 *enetaddr)
 134 {
 135         u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
 136         u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
 137
 138         enetaddr[0] = (u8)((msb >> 16) & 0xff);
 139         enetaddr[1] = (u8)((msb >> 8)  & 0xff);
 140         enetaddr[2] = (u8)(msb & 0xff);
 141         enetaddr[3] = (u8)((lsb >> 16) & 0xff);
 142         enetaddr[4] = (u8)((lsb >> 8)  & 0xff);
 143         enetaddr[5] = (u8)(lsb & 0xff);
 144
 145         return is_valid_ethaddr(enetaddr);
 146 }
 147
 148 static inline int cm_t3517_init_emac(bd_t *bis)
 149 {
 150         int ret = cpu_eth_init(bis);
 151
 152         if (ret > 0)
 153                 return ret;
 154
 155         printf("Failed initializing EMAC! ");
 156         return 0;
 157 }
 158 #else /* !CONFIG_DRIVER_TI_EMAC */
 159 static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
 160 static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
 161 #endif /* CONFIG_DRIVER_TI_EMAC */
 162
 163 /*
 164  * Routine: handle_mac_address
 165  * Description: prepare MAC address for on-board Ethernet.
 166  */
 167 static int cm_t3517_handle_mac_address(void)
 168 {
 169         unsigned char enetaddr[6];
 170         int ret;
 171
 172         ret = eth_env_get_enetaddr("ethaddr", enetaddr);
 173         if (ret)
 174                 return 0;
 175
 176         ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
 177         if (ret) {
 178                 ret = am3517_get_efuse_enetaddr(enetaddr);
 179                 if (ret)
 180                         return ret;
 181         }
 182
 183         if (!is_valid_ethaddr(enetaddr))
 184                 return -1;
 185
 186         return eth_env_set_enetaddr("ethaddr", enetaddr);
 187 }
 188
 189 #define SB_T35_ETH_RST_GPIO 164
 190
 191 /*
 192  * Routine: board_eth_init
 193  * Description: initialize module and base-board Ethernet chips
 194  */
 195 int board_eth_init(bd_t *bis)
 196 {
 197         int rc = 0, rc1 = 0;
 198
 199         rc1 = cm_t3517_handle_mac_address();
 200         if (rc1)
 201                 printf("No MAC address found! ");
 202
 203         rc1 = cm_t3517_init_emac(bis);
 204         if (rc1 > 0)
 205                 rc++;
 206
 207         rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
 208                                     NULL, SB_T35_ETH_RST_GPIO);
 209         if (rc1 > 0)
 210                 rc++;
 211
 212         return rc;
 213 }
 214
 215 #ifdef CONFIG_USB_EHCI_OMAP
 216 static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
 217         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
 218         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
 219         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
 220 };
 221
 222 #define CM_T3517_USB_HUB_RESET_GPIO     152
 223 #define SB_T35_USB_HUB_RESET_GPIO       98
 224
 225 int ehci_hcd_init(int index, enum usb_init_type init,
 226                         struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 227 {
 228         cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
 229         cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
 230
 231         return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
 232 }
 233
 234 int ehci_hcd_stop(void)
 235 {
 236         cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
 237         cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
 238
 239         return omap_ehci_hcd_stop();
 240 }
 241 #endif /* CONFIG_USB_EHCI_OMAP */