// SPDX-License-Identifier: GPL-2.0+ /* * Maintainer : Steve Sakoman * * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by * Richard Woodruff * Syed Mohammed Khasim * Sunil Kumar * Shashi Ranjan * * (C) Copyright 2004-2008 * Texas Instruments, */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "overo.h" #ifdef CONFIG_USB_EHCI_HCD #include #include #endif #define TWL4030_I2C_BUS 0 #define EXPANSION_EEPROM_I2C_BUS 2 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51 #define GUMSTIX_EMPTY_EEPROM 0x0 #define GUMSTIX_SUMMIT 0x01000200 #define GUMSTIX_TOBI 0x02000200 #define GUMSTIX_TOBI_DUO 0x03000200 #define GUMSTIX_PALO35 0x04000200 #define GUMSTIX_PALO43 0x05000200 #define GUMSTIX_CHESTNUT43 0x06000200 #define GUMSTIX_PINTO 0x07000200 #define GUMSTIX_GALLOP43 0x08000200 #define GUMSTIX_ALTO35 0x09000200 #define GUMSTIX_STAGECOACH 0x0A000200 #define GUMSTIX_THUMBO 0x0B000200 #define GUMSTIX_TURTLECORE 0x0C000200 #define GUMSTIX_ARBOR43C 0x0D000200 #define ETTUS_USRP_E 0x01000300 #define GUMSTIX_NO_EEPROM 0xffffffff static struct { unsigned int device_vendor; unsigned char revision; unsigned char content; char fab_revision[8]; char env_var[16]; char env_setting[64]; } expansion_config = {0x0}; static const struct ns16550_platdata overo_serial = { .base = OMAP34XX_UART3, .reg_shift = 2, .clock = V_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }; U_BOOT_DEVICE(overo_uart) = { "ns16550_serial", &overo_serial }; /* * Routine: get_sdio2_config * Description: Return information about the wifi module connection * Returns 0 if the module connects though a level translator * Returns 1 if the module connects directly */ int get_sdio2_config(void) { int sdio_direct; if (!gpio_request(130, "") && !gpio_request(139, "")) { gpio_direction_output(130, 0); gpio_direction_input(139); sdio_direct = 1; gpio_set_value(130, 0); if (gpio_get_value(139) == 0) { gpio_set_value(130, 1); if (gpio_get_value(139) == 1) sdio_direct = 0; } gpio_direction_input(130); } else { puts("Error: unable to acquire sdio2 clk GPIOs\n"); sdio_direct = -1; } return sdio_direct; } /* * Routine: get_expansion_id * Description: This function checks for expansion board by checking I2C * bus 2 for the availability of an AT24C01B serial EEPROM. * returns the device_vendor field from the EEPROM */ unsigned int get_expansion_id(void) { if (expansion_config.device_vendor != 0x0) return expansion_config.device_vendor; i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS); /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */ if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) { i2c_set_bus_num(TWL4030_I2C_BUS); return GUMSTIX_NO_EEPROM; } /* read configuration data */ i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config, sizeof(expansion_config)); i2c_set_bus_num(TWL4030_I2C_BUS); return expansion_config.device_vendor; } /* * Routine: misc_init_r * Description: Configure board specific parts */ int misc_init_r(void) { unsigned int expansion_id; twl4030_power_init(); twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); printf("Board revision: %d\n", get_board_revision()); switch (get_sdio2_config()) { case 0: puts("Tranceiver detected on mmc2\n"); MUX_OVERO_SDIO2_TRANSCEIVER(); break; case 1: puts("Direct connection on mmc2\n"); MUX_OVERO_SDIO2_DIRECT(); break; default: puts("Unable to detect mmc2 connection type\n"); } expansion_id = get_expansion_id(); switch (expansion_id) { case GUMSTIX_SUMMIT: printf("Recognized Summit expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "dvi"); env_set("expansionname", "summit"); break; case GUMSTIX_TOBI: printf("Recognized Tobi expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "dvi"); env_set("expansionname", "tobi"); break; case GUMSTIX_TOBI_DUO: printf("Recognized Tobi Duo expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("expansionname", "tobiduo"); break; case GUMSTIX_PALO35: printf("Recognized Palo35 expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "lcd35"); env_set("expansionname", "palo35"); break; case GUMSTIX_PALO43: printf("Recognized Palo43 expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "lcd43"); env_set("expansionname", "palo43"); break; case GUMSTIX_CHESTNUT43: printf("Recognized Chestnut43 expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "lcd43"); env_set("expansionname", "chestnut43"); break; case GUMSTIX_PINTO: printf("Recognized Pinto expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); break; case GUMSTIX_GALLOP43: printf("Recognized Gallop43 expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); env_set("defaultdisplay", "lcd43"); env_set("expansionname", "gallop43"); break; case GUMSTIX_ALTO35: printf("Recognized Alto35 expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); MUX_ALTO35(); env_set("defaultdisplay", "lcd35"); env_set("expansionname", "alto35"); break; case GUMSTIX_STAGECOACH: printf("Recognized Stagecoach expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); break; case GUMSTIX_THUMBO: printf("Recognized Thumbo expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); break; case GUMSTIX_TURTLECORE: printf("Recognized Turtlecore expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); break; case GUMSTIX_ARBOR43C: printf("Recognized Arbor43C expansion board (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); MUX_ARBOR43C(); env_set("defaultdisplay", "lcd43"); env_set("expansionname", "arbor43c"); break; case ETTUS_USRP_E: printf("Recognized Ettus Research USRP-E (rev %d %s)\n", expansion_config.revision, expansion_config.fab_revision); MUX_GUMSTIX(); MUX_USRP_E(); env_set("defaultdisplay", "dvi"); break; case GUMSTIX_NO_EEPROM: case GUMSTIX_EMPTY_EEPROM: puts("No or empty EEPROM on expansion board\n"); MUX_GUMSTIX(); env_set("expansionname", "tobi"); break; default: printf("Unrecognized expansion board 0x%08x\n", expansion_id); break; } if (expansion_config.content == 1) env_set(expansion_config.env_var, expansion_config.env_setting); omap_die_id_display(); if (get_cpu_family() == CPU_OMAP34XX) env_set("boardname", "overo"); else env_set("boardname", "overo-storm"); return 0; } #if defined(CONFIG_CMD_NET) /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ static const u32 gpmc_lan_config[] = { NET_LAN9221_GPMC_CONFIG1, NET_LAN9221_GPMC_CONFIG2, NET_LAN9221_GPMC_CONFIG3, NET_LAN9221_GPMC_CONFIG4, NET_LAN9221_GPMC_CONFIG5, NET_LAN9221_GPMC_CONFIG6, /*CONFIG7- computed as params */ }; /* * Routine: setup_net_chip * Description: Setting up the configuration GPMC registers specific to the * Ethernet hardware. */ static void setup_net_chip(void) { struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, &ctrl_base->gpmc_nadv_ale); } /* * Routine: reset_net_chip * Description: Reset the Ethernet hardware. */ static void reset_net_chip(void) { /* Make GPIO 64 as output pin and send a magic pulse through it */ if (!gpio_request(64, "")) { gpio_direction_output(64, 0); gpio_set_value(64, 1); udelay(1); gpio_set_value(64, 0); udelay(1); gpio_set_value(64, 1); } } int board_eth_init(bd_t *bis) { unsigned int expansion_id; int rc = 0; #ifdef CONFIG_SMC911X expansion_id = get_expansion_id(); switch (expansion_id) { case GUMSTIX_TOBI_DUO: /* second lan chip */ enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 0x2B000000, GPMC_SIZE_16M); /* no break */ case GUMSTIX_TOBI: case GUMSTIX_CHESTNUT43: case GUMSTIX_STAGECOACH: case GUMSTIX_NO_EEPROM: case GUMSTIX_EMPTY_EEPROM: /* first lan chip */ enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000, GPMC_SIZE_16M); setup_net_chip(); reset_net_chip(); rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); break; default: break; } #endif return rc; } #endif #if defined(CONFIG_MMC) int board_mmc_init(bd_t *bis) { return omap_mmc_init(0, 0, 0, -1, -1); } #endif #if defined(CONFIG_MMC) void board_mmc_power_init(void) { twl4030_power_mmc_init(0); } #endif #if defined(CONFIG_USB_EHCI_HCD) static struct omap_usbhs_board_data usbhs_bdata = { .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED, .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED }; #define GUMSTIX_GPIO_USBH_CPEN 168 int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr, struct ehci_hcor **hcor) { /* Enable USB power */ if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen")) gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1); return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor); } int ehci_hcd_stop(void) { /* Disable USB power */ gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0); gpio_free(GUMSTIX_GPIO_USBH_CPEN); return omap_ehci_hcd_stop(); } #endif /* CONFIG_USB_EHCI_HCD */