diff options
Diffstat (limited to 'board/at91sam9261ek/at91sam9261ek.c')
-rw-r--r-- | board/at91sam9261ek/at91sam9261ek.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/board/at91sam9261ek/at91sam9261ek.c b/board/at91sam9261ek/at91sam9261ek.c new file mode 100644 index 00000000000..003f846b826 --- /dev/null +++ b/board/at91sam9261ek/at91sam9261ek.c @@ -0,0 +1,142 @@ +/* + * (C) Copyright 2005 + * M. Amine SAYA ATMEL Rousset, France. + * Added AT91SAM9261EK support. + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * 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 <common.h> +#include <asm/arch/hardware.h> + +#include <net.h> + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ +#ifdef CONFIG_DRIVER_DM9000 + +void at91sam9261ek_dm9000_init(void) { + + /* Configure SMC CS2 for DM9000 */ + AT91C_BASE_SMC->SMC_SETUP2 = (AT91C_DM9000_NWE_SETUP | AT91C_DM9000_NCS_WR_SETUP | + AT91C_DM9000_NRD_SETUP | AT91C_DM9000_NCS_RD_SETUP); + + AT91C_BASE_SMC->SMC_PULSE2 = (AT91C_DM9000_NWE_PULSE | AT91C_DM9000_NCS_WR_PULSE | AT91C_DM9000_NRD_PULSE | AT91C_DM9000_NCS_RD_PULSE); + + AT91C_BASE_SMC->SMC_CYCLE2 = (AT91C_DM9000_NWE_CYCLE | AT91C_DM9000_NRD_CYCLE); + +#ifdef CONFIG_DM9000_USE_8BIT + AT91C_BASE_SMC->SMC_CTRL2 = (AT91C_SMC_READMODE | AT91C_SMC_WRITEMODE | AT91C_SMC_NWAITM_NWAIT_ENABLE_READY | + AT91C_SMC_DBW_WIDTH_EIGTH_BITS | AT91C_DM9000_TDF); +#endif + +#ifdef CONFIG_DM9000_USE_16BIT + AT91C_BASE_SMC->SMC_CTRL2 = (AT91C_SMC_READMODE | AT91C_SMC_WRITEMODE | AT91C_SMC_NWAITM_NWAIT_DISABLE | + AT91C_SMC_BAT_BYTE_WRITE | AT91C_SMC_DBW_WIDTH_SIXTEEN_BITS | AT91C_DM9000_TDF); +#endif + + /* Configure NWAIT signal */ + /* AT91F_PIO_CfgPeriph(AT91C_BASE_PIOC,AT91C_PC2_NWAIT,0); */ + + /* Configure Reset signal in output */ + AT91F_PIO_CfgOutput(AT91C_BASE_PIOC,AT91C_PIO_PC10); + AT91F_PIO_ClearOutput(AT91C_BASE_PIOC,AT91C_PIO_PC10); +} +#endif + +int board_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* Enable Ctrlc */ + console_init_f (); + + /* Enable clocks for SMC and PIOC */ + AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SYS; + AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOC; + + /* memory and cpu-speed are setup before relocation */ + /* so we do _nothing_ here */ + +#ifdef CONFIG_LCD + gd->fb_base = (unsigned long) AT91C_IRAM; +#endif + + /* arch number of AT91SAM9261EK-Board */ + gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9261EK; + /* adress of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +int AT91F_Serial_Hardware_Init(void) +{ +#ifdef CONFIG_DBGU + *AT91C_PIOA_PDR = AT91C_PA10_DTXD | AT91C_PA9_DRXD; /* PA 10 & 9 */ + *AT91C_PMC_PCER = 1 << AT91C_ID_SYS; /* enable clock */ +#endif + +#ifdef CONFIG_USART0 + *AT91C_PIOA_PDR = AT91C_PC8_TXD0 | AT91C_PC9_RXD0; + *AT91C_PMC_PCER |= 1 << AT91C_ID_US0; /* enable clock */ +#endif + +#ifdef CONFIG_USART1 + *AT91C_PIOB_PDR = AT91C_PC12_TXD1 | AT91C_PC13_RXD1; + *AT91C_PMC_PCER |= 1 << AT91C_ID_US1; /* enable clock */ +#endif + +#ifdef CONFIG_USART2 + *AT91C_PIOB_PDR = AT91C_PC14_TXD2 | AT91C_PC15_RXD2; + *AT91C_PMC_PCER |= 1 << AT91C_ID_US2; /* enable clock */ +#endif +} + +int dram_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gd->bd->bi_dram[0].start = PHYS_SDRAM; + gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; + return 0; +} + + +int board_late_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* Fix Ethernet Initialization Bug when starting Linux from U-Boot */ +#if (CONFIG_COMMANDS & CFG_CMD_NET) +#ifdef CONFIG_DRIVER_DM9000 + /* configure SMC's NCS2 to use it with DM9000 chip */ + at91sam9261ek_dm9000_init(); +#endif + eth_init(gd->bd); +#endif + + return 0; +} |