/* * Copyright (C) 2007 Sascha Hauer, Pengutronix * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * board revision encoding * bit 0: * 0 => 1 mmc * 1 => 2 mmcs (board from revision C) */ #define HAVE_2MMC (1 << 0) static void ek_set_board_type(void) { if (machine_is_at91sam9g20ek()) { armlinux_set_architecture(MACH_TYPE_AT91SAM9G20EK); #ifdef CONFIG_AT91_HAVE_2MMC armlinux_set_revision(HAVE_2MMC); #endif } else { armlinux_set_architecture(MACH_TYPE_AT91SAM9260EK); } } static struct atmel_nand_data nand_pdata = { .ale = 21, .cle = 22, /* .det_pin = ... not connected */ .rdy_pin = AT91_PIN_PC13, .enable_pin = AT91_PIN_PC14, #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) .bus_width_16 = 1, #else .bus_width_16 = 0, #endif .on_flash_bbt = 1, }; static struct sam9_smc_config ek_9260_nand_smc_config = { .ncs_read_setup = 0, .nrd_setup = 1, .ncs_write_setup = 0, .nwe_setup = 1, .ncs_read_pulse = 3, .nrd_pulse = 3, .ncs_write_pulse = 3, .nwe_pulse = 3, .read_cycle = 5, .write_cycle = 5, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, .tdf_cycles = 2, }; static struct sam9_smc_config ek_9g20_nand_smc_config = { .ncs_read_setup = 0, .nrd_setup = 2, .ncs_write_setup = 0, .nwe_setup = 2, .ncs_read_pulse = 4, .nrd_pulse = 4, .ncs_write_pulse = 4, .nwe_pulse = 4, .read_cycle = 7, .write_cycle = 7, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, .tdf_cycles = 3, }; static void ek_add_device_nand(void) { struct sam9_smc_config *smc; if (machine_is_at91sam9g20ek()) smc = &ek_9g20_nand_smc_config; else smc = &ek_9260_nand_smc_config; /* setup bus-width (8 or 16) */ if (nand_pdata.bus_width_16) smc->mode |= AT91_SMC_DBW_16; else smc->mode |= AT91_SMC_DBW_8; /* configure chip-select 3 (NAND) */ sam9_smc_configure(3, smc); at91_add_device_nand(&nand_pdata); } static struct at91_ether_platform_data macb_pdata = { .flags = AT91SAM_ETHER_RMII, .phy_addr = 0, }; static void at91sam9260ek_phy_reset(void) { unsigned long rstc; at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC); at91_set_gpio_input(AT91_PIN_PA14, 0); at91_set_gpio_input(AT91_PIN_PA15, 0); at91_set_gpio_input(AT91_PIN_PA17, 0); at91_set_gpio_input(AT91_PIN_PA25, 0); at91_set_gpio_input(AT91_PIN_PA26, 0); at91_set_gpio_input(AT91_PIN_PA28, 0); rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL; /* Need to reset PHY -> 500ms reset */ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | (AT91_RSTC_ERSTL & (0x0d << 8)) | AT91_RSTC_URSTEN); at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); /* Wait for end hardware reset */ while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); /* Restore NRST value */ at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | (rstc) | AT91_RSTC_URSTEN); } /* * MCI (SD/MMC) */ #if defined(CONFIG_MCI_ATMEL) static struct atmel_mci_platform_data __initdata ek_mci_data = { .bus_width = 4, .slot_b = 1, }; static void ek_usb_add_device_mci(void) { if (machine_is_at91sam9g20ek()) ek_mci_data.detect_pin = AT91_PIN_PC9; at91_add_device_mci(0, &ek_mci_data); } #else static void ek_usb_add_device_mci(void) {} #endif /* * USB Host port */ static struct at91_usbh_data __initdata ek_usbh_data = { .ports = 2, }; /* * USB Device port */ static struct at91_udc_data __initdata ek_udc_data = { .vbus_pin = AT91_PIN_PC5, .pullup_pin = -EINVAL, /* pull-up driven by UDC */ }; struct gpio_led leds[] = { { .gpio = AT91_PIN_PA6, .active_low = 1, .led = { .name = "ds5", }, }, { .gpio = AT91_PIN_PA9, .led = { .name = "ds3", }, }, }; static void __init ek_add_led(void) { int i; #ifdef CONFIG_AT91_HAVE_2MMC leds[0].gpio = AT91_PIN_PB8; leds[1].gpio = AT91_PIN_PB9; #endif for (i = 0; i < ARRAY_SIZE(leds); i++) { at91_set_gpio_output(leds[i].gpio, leds[i].active_low); led_gpio_register(&leds[i]); } led_set_trigger(LED_TRIGGER_HEARTBEAT, &leds[1].led); } static int at91sam9260ek_mem_init(void) { at91_add_device_sdram(0); return 0; } mem_initcall(at91sam9260ek_mem_init); static void __init ek_add_device_buttons(void) { at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ at91_set_deglitch(AT91_PIN_PA30, 1); export_env_ull("dfu_button", AT91_PIN_PA30); at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ at91_set_deglitch(AT91_PIN_PA31, 1); export_env_ull("btn4", AT91_PIN_PA31); } static int at91sam9260ek_devices_init(void) { ek_add_device_nand(); at91sam9260ek_phy_reset(); at91_add_device_eth(0, &macb_pdata); at91_add_device_usbh_ohci(&ek_usbh_data); at91_add_device_udc(&ek_udc_data); ek_usb_add_device_mci(); ek_add_device_buttons(); ek_add_led(); armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100)); ek_set_board_type(); devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw"); dev_add_bb_dev("at91bootstrap_raw", "at91bootstrap"); devfs_add_partition("nand0", SZ_128K, SZ_256K, DEVFS_PARTITION_FIXED, "self_raw"); dev_add_bb_dev("self_raw", "self0"); devfs_add_partition("nand0", SZ_256K + SZ_128K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw"); dev_add_bb_dev("env_raw", "env0"); devfs_add_partition("nand0", SZ_512K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw1"); dev_add_bb_dev("env_raw1", "env1"); return 0; } device_initcall(at91sam9260ek_devices_init); static int at91sam9260ek_console_init(void) { at91_register_uart(0, 0); return 0; } console_initcall(at91sam9260ek_console_init);