diff options
Diffstat (limited to 'u-boot/board/cmc_pu2/cmc_pu2.c')
| -rw-r--r-- | u-boot/board/cmc_pu2/cmc_pu2.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/u-boot/board/cmc_pu2/cmc_pu2.c b/u-boot/board/cmc_pu2/cmc_pu2.c new file mode 100644 index 0000000..0ac851c --- /dev/null +++ b/u-boot/board/cmc_pu2/cmc_pu2.c @@ -0,0 +1,192 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * Modified for CMC_PU2 (removed Smart Media support) by Gary Jennejohn + * (2004) garyj@denx.de + * + * Modified for CMC_BASIC by Martin Krause (2005), TQ-Systems GmbH + * + * 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/mach-types.h> +#include <asm/arch/AT91RM9200.h> +#include <asm/io.h> +#include <netdev.h> +#if defined(CONFIG_DRIVER_ETHER) +#include <at91rm9200_net.h> +#include <dm9161.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ +#define CMC_HP_BASIC 1 +#define CMC_PU2 2 +#define CMC_BASIC 4 + +int hw_detect (void); + +int board_init (void) +{ + AT91PS_PIO piob = AT91C_BASE_PIOB; + AT91PS_PIO pioc = AT91C_BASE_PIOC; + + /* 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 */ + + /* PIOB and PIOC clock enabling */ + *AT91C_PMC_PCER = 1 << AT91C_ID_PIOB; + *AT91C_PMC_PCER = 1 << AT91C_ID_PIOC; + + /* + * configure PC0-PC3 as input without pull ups, so RS485 driver enable + * (CMC-PU2) and digital outputs (CMC-BASIC) are deactivated. + */ + pioc->PIO_ODR = AT91C_PIO_PC0 | AT91C_PIO_PC1 | + AT91C_PIO_PC2 | AT91C_PIO_PC3; + pioc->PIO_PPUDR = AT91C_PIO_PC0 | AT91C_PIO_PC1 | + AT91C_PIO_PC2 | AT91C_PIO_PC3; + pioc->PIO_PER = AT91C_PIO_PC0 | AT91C_PIO_PC1 | + AT91C_PIO_PC2 | AT91C_PIO_PC3; + + /* + * On CMC-PU2 board configure PB3-PB6 to input without pull ups to + * clear the duo LEDs (the external pull downs assure a proper + * signal). On CMC-BASIC and CMC-HP-BASIC set PB3-PB6 to output and + * drive it high, to configure current measurement on AINx. + */ + if (hw_detect() & CMC_PU2) { + piob->PIO_ODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 | + AT91C_PIO_PB5 | AT91C_PIO_PB6; + } + else if ((hw_detect() & CMC_BASIC) || (hw_detect() & CMC_HP_BASIC)) { + piob->PIO_SODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 | + AT91C_PIO_PB5 | AT91C_PIO_PB6; + piob->PIO_OER = AT91C_PIO_PB3 | AT91C_PIO_PB4 | + AT91C_PIO_PB5 | AT91C_PIO_PB6; + } + piob->PIO_PPUDR = AT91C_PIO_PB3 | AT91C_PIO_PB4 | + AT91C_PIO_PB5 | AT91C_PIO_PB6; + piob->PIO_PER = AT91C_PIO_PB3 | AT91C_PIO_PB4 | + AT91C_PIO_PB5 | AT91C_PIO_PB6; + + /* + * arch number of CMC_PU2-Board. MACH_TYPE_CMC_PU2 is not supported in + * the linuxarm kernel, yet. + */ + /* gd->bd->bi_arch_number = MACH_TYPE_CMC_PU2; */ + gd->bd->bi_arch_number = 251; + /* adress of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + 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; +} + +int checkboard (void) +{ + if (hw_detect() & CMC_PU2) + puts ("Board: CMC-PU2 (Rittal GmbH)\n"); + else if (hw_detect() & CMC_BASIC) + puts ("Board: CMC-BASIC (Rittal GmbH)\n"); + else if (hw_detect() & CMC_HP_BASIC) + puts ("Board: CMC-HP-BASIC (Rittal GmbH)\n"); + else + puts ("Board: unknown\n"); + return 0; +} + +int hw_detect (void) +{ + AT91PS_PIO pio = AT91C_BASE_PIOB; + + /* PIOB clock enabling */ + *AT91C_PMC_PCER = 1 << AT91C_ID_PIOB; + + /* configure PB12 as input without pull up */ + pio->PIO_ODR = AT91C_PIO_PB12; + pio->PIO_PPUDR = AT91C_PIO_PB12; + pio->PIO_PER = AT91C_PIO_PB12; + + /* configure PB13 as input without pull up */ + pio->PIO_ODR = AT91C_PIO_PB13; + pio->PIO_PPUDR = AT91C_PIO_PB13; + pio->PIO_PER = AT91C_PIO_PB13; + + /* read board identification pin */ + if (pio->PIO_PDSR & AT91C_PIO_PB12) + return ((pio->PIO_PDSR & AT91C_PIO_PB13) + ? CMC_PU2 : 0); + else + return ((pio->PIO_PDSR & AT91C_PIO_PB13) + ? CMC_HP_BASIC : CMC_BASIC); +} + +#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 |