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 */ 242