/* * (C) Copyright 2007-2008 * Stelian Pop * Lead Tech Design * * See file CREDITS for list of people who contributed to this * project. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) #include #endif DECLARE_GLOBAL_DATA_PTR; /* ------------------------------------------------------------------------- */ /* * Miscelaneous platform dependent initialisations */ static void at91sam9260ek_serial_hw_init(void) { #ifdef CONFIG_USART0 at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0); #endif #ifdef CONFIG_USART1 at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1); #endif #ifdef CONFIG_USART2 at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2); #endif #ifdef CONFIG_USART3 /* DBGU */ at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */ at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS); #endif } #ifdef CONFIG_CMD_NAND static void at91sam9260ek_nand_hw_init(void) { unsigned long csa; /* Enable CS3 */ csa = at91_sys_read(AT91_MATRIX_EBICSA); at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); /* Configure SMC CS3 for NAND/SmartMedia */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5)); at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8 | AT91_SMC_TDF_(2)); at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC); /* Configure RDY/BSY */ at91_set_gpio_input(AT91_PIN_PC13, 1); /* Enable NandFlash */ at91_set_gpio_output(AT91_PIN_PC14, 1); } #endif #ifdef CONFIG_HAS_DATAFLASH static void at91sam9260ek_spi_hw_init(void) { at91_set_A_periph(AT91_PIN_PA3, 0); /* SPI0_NPCS0 */ at91_set_B_periph(AT91_PIN_PC11, 0); /* SPI0_NPCS1 */ at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */ at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */ at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */ /* Enable clock */ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0); } #endif #ifdef CONFIG_MACB static void at91sam9260ek_macb_hw_init(void) { /* Enable clock */ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC); /* * Disable pull-up on: * RXDV (PA17) => PHY normal mode (not Test mode) * ERX0 (PA14) => PHY ADDR0 * ERX1 (PA15) => PHY ADDR1 * ERX2 (PA25) => PHY ADDR2 * ERX3 (PA26) => PHY ADDR3 * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0 * * PHY has internal pull-down */ writel(pin_to_mask(AT91_PIN_PA14) | pin_to_mask(AT91_PIN_PA15) | pin_to_mask(AT91_PIN_PA17) | pin_to_mask(AT91_PIN_PA25) | pin_to_mask(AT91_PIN_PA26) | pin_to_mask(AT91_PIN_PA28), pin_to_controller(AT91_PIN_PA0) + PIO_PUDR); /* 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 | AT91_RSTC_ERSTL | (0x0 << 8) | AT91_RSTC_URSTEN); /* Re-enable pull-up */ writel(pin_to_mask(AT91_PIN_PA14) | pin_to_mask(AT91_PIN_PA15) | pin_to_mask(AT91_PIN_PA17) | pin_to_mask(AT91_PIN_PA25) | pin_to_mask(AT91_PIN_PA26) | pin_to_mask(AT91_PIN_PA28), pin_to_controller(AT91_PIN_PA0) + PIO_PUER); at91_set_A_periph(AT91_PIN_PA19, 0); /* ETXCK_EREFCK */ at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */ at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */ at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */ at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */ at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */ at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */ at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */ at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */ at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */ #ifndef CONFIG_RMII at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */ at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */ at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */ at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */ at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */ at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */ at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */ at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */ #endif } #endif int board_init(void) { /* Enable Ctrlc */ console_init_f(); /* arch number of AT91SAM9260EK-Board */ gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK; /* adress of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; at91sam9260ek_serial_hw_init(); #ifdef CONFIG_CMD_NAND at91sam9260ek_nand_hw_init(); #endif #ifdef CONFIG_HAS_DATAFLASH at91sam9260ek_spi_hw_init(); #endif #ifdef CONFIG_MACB at91sam9260ek_macb_hw_init(); #endif return 0; } int dram_init(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM; gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; return 0; } #ifdef CONFIG_RESET_PHY_R void reset_phy(void) { #ifdef CONFIG_MACB /* * Initialize ethernet HW addr prior to starting Linux, * needed for nfsroot */ eth_init(gd->bd); #endif } #endif