diff options
Diffstat (limited to 'u-boot/board/atmel/at91rm9200dk/at91rm9200dk.c')
| -rw-r--r-- | u-boot/board/atmel/at91rm9200dk/at91rm9200dk.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/u-boot/board/atmel/at91rm9200dk/at91rm9200dk.c b/u-boot/board/atmel/at91rm9200dk/at91rm9200dk.c new file mode 100644 index 0000000..49b5fe3 --- /dev/null +++ b/u-boot/board/atmel/at91rm9200dk/at91rm9200dk.c @@ -0,0 +1,167 @@ +/* + * (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 <exports.h> +#include <netdev.h> +#include <asm/arch/AT91RM9200.h> +#include <asm/io.h> + +#if defined(CONFIG_DRIVER_ETHER) +#include <at91rm9200_net.h> +#include <dm9161.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ + +int board_init (void) +{ + /* Enable Ctrlc */ + console_init_f (); + + /* Correct IRDA resistor problem */ + /* Set PA23_TXD in Output */ + ((AT91PS_PIO) AT91C_BASE_PIOA)->PIO_OER = AT91C_PA23_TXD2; + + /* memory and cpu-speed are setup before relocation */ + /* so we do _nothing_ here */ + + /* arch number of AT91RM9200DK-Board */ + gd->bd->bi_arch_number = MACH_TYPE_AT91RM9200DK; + /* adress of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +void board_reset (void) +{ + AT91PS_PIO pio = AT91C_BASE_PIOA; + + /* Clear PA19 to trigger the hard reset */ + writel(0x00080000, pio->PIO_CODR); + writel(0x00080000, pio->PIO_OER); + writel(0x00080000, pio->PIO_PER); +} + +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_DRIVER_ETHER +#if defined(CONFIG_CMD_NET) + +/* + * Name: + * at91rm9200_GetPhyInterface + * Description: + * Initialise the interface functions to the PHY + * Arguments: + * None + * Return value: + * None + */ +void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops) +{ + p_phyops->Init = dm9161_InitPhy; + p_phyops->IsPhyConnected = dm9161_IsPhyConnected; + p_phyops->GetLinkSpeed = dm9161_GetLinkSpeed; + p_phyops->AutoNegotiate = dm9161_AutoNegotiate; +} + +#endif +#endif /* CONFIG_DRIVER_ETHER */ + +#ifdef CONFIG_DRIVER_AT91EMAC +int board_eth_init(bd_t *bis) +{ + int rc = 0; + rc = at91emac_register(bis, 0); + return rc; +} +#endif + +/* + * Disk On Chip (NAND) Millenium initialization. + * The NAND lives in the CS2* space + */ +#if defined(CONFIG_CMD_NAND) +extern ulong nand_probe (ulong physadr); + +#define AT91_SMARTMEDIA_BASE 0x40000000 /* physical address to access memory on NCS3 */ +void nand_init (void) +{ + /* Setup Smart Media, fitst enable the address range of CS3 */ + *AT91C_EBI_CSA |= AT91C_EBI_CS3A_SMC_SmartMedia; + /* set the bus interface characteristics based on + tDS Data Set up Time 30 - ns + tDH Data Hold Time 20 - ns + tALS ALE Set up Time 20 - ns + 16ns at 60 MHz ~= 3 */ +/*memory mapping structures */ +#define SM_ID_RWH (5 << 28) +#define SM_RWH (1 << 28) +#define SM_RWS (0 << 24) +#define SM_TDF (1 << 8) +#define SM_NWS (3) + AT91C_BASE_SMC2->SMC2_CSR[3] = (SM_RWH | SM_RWS | + AT91C_SMC2_ACSS_STANDARD | AT91C_SMC2_DBW_8 | + SM_TDF | AT91C_SMC2_WSEN | SM_NWS); + + /* enable the SMOE line PC0=SMCE, A21=CLE, A22=ALE */ + *AT91C_PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | + AT91C_PC3_BFBAA_SMWE; + *AT91C_PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE | + AT91C_PC3_BFBAA_SMWE; + + /* Configure PC2 as input (signal READY of the SmartMedia) */ + *AT91C_PIOC_PER = AT91C_PC2_BFAVD; /* enable direct output enable */ + *AT91C_PIOC_ODR = AT91C_PC2_BFAVD; /* disable output */ + + /* Configure PB1 as input (signal Card Detect of the SmartMedia) */ + *AT91C_PIOB_PER = AT91C_PIO_PB1; /* enable direct output enable */ + *AT91C_PIOB_ODR = AT91C_PIO_PB1; /* disable output */ + + /* PIOB and PIOC clock enabling */ + *AT91C_PMC_PCER = 1 << AT91C_ID_PIOB; + *AT91C_PMC_PCER = 1 << AT91C_ID_PIOC; + + if (*AT91C_PIOB_PDSR & AT91C_PIO_PB1) + printf (" No SmartMedia card inserted\n"); +#ifdef DEBUG + printf (" SmartMedia card inserted\n"); + + printf ("Probing at 0x%.8x\n", AT91_SMARTMEDIA_BASE); +#endif + printf ("%4lu MB\n", nand_probe(AT91_SMARTMEDIA_BASE) >> 20); +} +#endif |