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_USB_MUSB_HOST) 54 .mode = MUSB_HOST, 55 #elif defined(CONFIG_USB_MUSB_GADGET) 56 .mode = MUSB_PERIPHERAL, 57 #else 58 #error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_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 /* 102 * Routine: get_board_rev 103 * Description: read system revision 104 */ 105 u32 get_board_rev(void) 106 { 107 return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS); 108 }; 109 110 int misc_init_r(void) 111 { 112 cl_print_pcb_info(); 113 omap_die_id_display(); 114 115 return 0; 116 } 117 118 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 119 #define SB_T35_CD_GPIO 144 120 #define SB_T35_WP_GPIO 59 121 122 int board_mmc_init(bd_t *bis) 123 { 124 return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO); 125 } 126 #endif 127 128 #ifdef CONFIG_DRIVER_TI_EMAC 129 #define CONTROL_EFUSE_EMAC_LSB 0x48002380 130 #define CONTROL_EFUSE_EMAC_MSB 0x48002384 131 132 static int am3517_get_efuse_enetaddr(u8 *enetaddr) 133 { 134 u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB); 135 u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB); 136 137 enetaddr[0] = (u8)((msb >> 16) & 0xff); 138 enetaddr[1] = (u8)((msb >> 8) & 0xff); 139 enetaddr[2] = (u8)(msb & 0xff); 140 enetaddr[3] = (u8)((lsb >> 16) & 0xff); 141 enetaddr[4] = (u8)((lsb >> 8) & 0xff); 142 enetaddr[5] = (u8)(lsb & 0xff); 143 144 return is_valid_ethaddr(enetaddr); 145 } 146 147 static inline int cm_t3517_init_emac(bd_t *bis) 148 { 149 int ret = cpu_eth_init(bis); 150 151 if (ret > 0) 152 return ret; 153 154 printf("Failed initializing EMAC! "); 155 return 0; 156 } 157 #else /* !CONFIG_DRIVER_TI_EMAC */ 158 static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; } 159 static inline int cm_t3517_init_emac(bd_t *bis) { return 0; } 160 #endif /* CONFIG_DRIVER_TI_EMAC */ 161 162 /* 163 * Routine: handle_mac_address 164 * Description: prepare MAC address for on-board Ethernet. 165 */ 166 static int cm_t3517_handle_mac_address(void) 167 { 168 unsigned char enetaddr[6]; 169 int ret; 170 171 ret = eth_getenv_enetaddr("ethaddr", enetaddr); 172 if (ret) 173 return 0; 174 175 ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS); 176 if (ret) { 177 ret = am3517_get_efuse_enetaddr(enetaddr); 178 if (ret) 179 return ret; 180 } 181 182 if (!is_valid_ethaddr(enetaddr)) 183 return -1; 184 185 return eth_setenv_enetaddr("ethaddr", enetaddr); 186 } 187 188 #define SB_T35_ETH_RST_GPIO 164 189 190 /* 191 * Routine: board_eth_init 192 * Description: initialize module and base-board Ethernet chips 193 */ 194 int board_eth_init(bd_t *bis) 195 { 196 int rc = 0, rc1 = 0; 197 198 rc1 = cm_t3517_handle_mac_address(); 199 if (rc1) 200 printf("No MAC address found! "); 201 202 rc1 = cm_t3517_init_emac(bis); 203 if (rc1 > 0) 204 rc++; 205 206 rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE, 207 NULL, SB_T35_ETH_RST_GPIO); 208 if (rc1 > 0) 209 rc++; 210 211 return rc; 212 } 213 214 #ifdef CONFIG_USB_EHCI_OMAP 215 static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = { 216 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, 217 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, 218 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, 219 }; 220 221 #define CM_T3517_USB_HUB_RESET_GPIO 152 222 #define SB_T35_USB_HUB_RESET_GPIO 98 223 224 int ehci_hcd_init(int index, enum usb_init_type init, 225 struct ehci_hccr **hccr, struct ehci_hcor **hcor) 226 { 227 cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst"); 228 cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst"); 229 230 return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor); 231 } 232 233 int ehci_hcd_stop(void) 234 { 235 cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO); 236 cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO); 237 238 return omap_ehci_hcd_stop(); 239 } 240 #endif /* CONFIG_USB_EHCI_OMAP */ 241